dcrat | 50c5fa2b2078b52d54657e174f05dcc98bd3e409eeef19baf60b65f041bfe5d2

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 22:38

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General

Target
file.exe
Size 222KB
Sample240315-2kcxpsef29
SHA256 50c5fa2b2078b52d54657e174f05dcc98bd3e409eeef19baf60b65f041bfe5d2
MD5 9c1da8b1d3b039cb60be5a47ef2889c5
SHA1 a759a61d392c040fae148756d15bdb625899491a
SHA512 e46c01f7afc420e682138523386434cd256ddfeee306d287833ee0570db0c9729aada175454c96fe700b3cba7f004399eb99011b32f47d6cad3e22fc95a80241
SSDEEP 3072:mkAodp8N/dorgUDXqlo3+/PU3FhyIY2JOmUH3hR6TbML1P4kAu8TMGz5:mkAoj8N/+xXt+/83+lH3hKAL1ZAuwnF
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

dcrat djvu smokeloader vidar 82df9629d6ef6fc7fe54d6eb2bc6137b pub1 backdoor discovery infostealer persistence ransomware rat stealer trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

http://trad-einmyus.com/index.php
http://tradein-myus.com/index.php
http://trade-inmyus.com/index.php

rc4.i32

Extracted

Family

djvu

http://sajdfue.com/test1/get.php

Attributes

extension
.wisz
offline_id
4p0Nzrg1q0ND5of5Gtp2UBjthSXuE8VxnMrd4vt1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://sajdfue.com/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/a832401adcd58098c699f768ffea4f1720240305114308/7e601a Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0853PsawqS

rsa_pubkey.plain

Extracted

Family

vidar

Version

Botnet

82df9629d6ef6fc7fe54d6eb2bc6137b

https://steamcommunity.com/profiles/76561199651834633
https://t.me/raf6ik

Attributes

profile_id_v2
82df9629d6ef6fc7fe54d6eb2bc6137b
user_agent
Mozilla/5.0 (Windows NT 10.0; rv:109.0) Gecko/20100101 Firefox/115.0

Signatures

DcRat 4 IoCs

DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

rat infostealer dcrat

description	ioc	pid	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI		file.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3057304b-953d-430a-a80a-e9e58f1a2983\\BBF0.exe\" --AutoStart"		BBF0.exe
		972	schtasks.exe
		1668	schtasks.exe

Detect Vidar Stealer 5 IoCs

stealer

resource	yara_rule
behavioral1/memory/708-110-0x0000000000230000-0x0000000000261000-memory.dmp	family_vidar_v7
behavioral1/memory/616-112-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7
behavioral1/memory/616-115-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7
behavioral1/memory/616-116-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7
behavioral1/memory/616-200-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7

Detected Djvu ransomware 13 IoCs

resource	yara_rule
behavioral1/memory/2520-30-0x0000000000500000-0x000000000061B000-memory.dmp	family_djvu
behavioral1/memory/2516-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1892-70-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1892-71-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1892-86-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1892-87-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1892-91-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1892-93-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1892-94-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1892-117-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
1196	Process not Found

Executes dropped EXE 11 IoCs

pid	Process
2520	BBF0.exe
2516	BBF0.exe
1548	BBF0.exe
1892	BBF0.exe
708	build2.exe
616	build2.exe
1332	build3.exe
1688	build3.exe
2556	iibfwgj
2024	mstsca.exe
1820	mstsca.exe

Loads dropped DLL 12 IoCs

pid	Process
2520	BBF0.exe
2516	BBF0.exe
2516	BBF0.exe
1548	BBF0.exe
1892	BBF0.exe
1892	BBF0.exe
1892	BBF0.exe
1892	BBF0.exe
2192	WerFault.exe
2192	WerFault.exe
2192	WerFault.exe
2192	WerFault.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1624	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3057304b-953d-430a-a80a-e9e58f1a2983\\BBF0.exe\" --AutoStart"	BBF0.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
7	api.2ip.ua
9	api.2ip.ua
13	api.2ip.ua

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 2520 set thread context of 2516	2520	BBF0.exe	32
PID 1548 set thread context of 1892	1548	BBF0.exe	38
PID 708 set thread context of 616	708	build2.exe	41
PID 1332 set thread context of 1688	1332	build3.exe	43
PID 2024 set thread context of 1820	2024	mstsca.exe	52

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2192	616	WerFault.exe	41

Checks SCSI registry key(s) 3 TTPs 6 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	iibfwgj
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	iibfwgj
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	iibfwgj
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
972	schtasks.exe
1668	schtasks.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	build2.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 0f0000000100000014000000e35ef08d884f0a0ade2f75e96301ce6230f213a8090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b060105050703085300000001000000230000003021301f06096086480186fd6c020130123010060a2b0601040182373c0101030200c0140000000100000014000000b13ec36903f8bf4701d498261a0802ef63642bc30b00000001000000120000004400690067006900430065007200740000001d00000001000000100000008f76b981d528ad4770088245e2031b630300000001000000140000005fb7ee0633e259dbad0c4c9ae6d38f1a61c7dc252000000001000000c9030000308203c5308202ada003020102021002ac5c266a0b409b8f0b79f2ae462577300d06092a864886f70d0101050500306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f74204341301e170d3036313131303030303030305a170d3331313131303030303030305a306c310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d312b30290603550403132244696769436572742048696768204173737572616e636520455620526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100c6cce573e6fbd4bbe52d2d32a6dfe5813fc9cd2549b6712ac3d5943467a20a1cb05f69a640b1c4b7b28fd098a4a941593ad3dc94d63cdb7438a44acc4d2582f74aa5531238eef3496d71917e63b6aba65fc3a484f84f6251bef8c5ecdb3892e306e508910cc4284155fbcb5a89157e71e835bf4d72093dbe3a38505b77311b8db3c724459aa7ac6d00145a04b7ba13eb510a984141224e656187814150a6795c89de194a57d52ee65d1c532c7e98cd1a0616a46873d03404135ca171d35a7c55db5e64e13787305604e511b4298012f1793988a202117c2766b788b778f2ca0aa838ab0a64c2bf665d9584c1a1251e875d1a500b2012cc41bb6e0b5138b84bcb0203010001a3633061300e0603551d0f0101ff040403020186300f0603551d130101ff040530030101ff301d0603551d0e04160414b13ec36903f8bf4701d498261a0802ef63642bc3301f0603551d23041830168014b13ec36903f8bf4701d498261a0802ef63642bc3300d06092a864886f70d010105050003820101001c1a0697dcd79c9f3c886606085721db2147f82a67aabf183276401057c18af37ad911658e35fa9efc45b59ed94c314bb891e8432c8eb378cedbe3537971d6e5219401da55879a2464f68a66ccde9c37cda834b1699b23c89e78222b7043e35547316119ef58c5852f4e30f6a0311623c8e7e2651633cbbf1a1ba03df8ca5e8b318b6008892d0c065c52b7c4f90a98d1155f9f12be7c366338bd44a47fe4262b0ac497690de98ce2c01057b8c876129155f24869d8bc2a025b0f44d42031dbf4ba70265d90609ebc4b17092fb4cb1e4368c90727c1d25cf7ea21b968129c3c9cbf9efc805c9b63cdec47aa252767a037f300827d54d7a9f8e92e13a377e81f4a	build2.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	build2.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2360	file.exe
2360	file.exe
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found
1196	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2360	file.exe
2556	iibfwgj

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1196	Process not Found

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1196	Process not Found
1196	Process not Found

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1196	Process not Found
1196	Process not Found

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1196 wrote to memory of 2856	1196	Process not Found	28
PID 1196 wrote to memory of 2856	1196	Process not Found	28
PID 1196 wrote to memory of 2856	1196	Process not Found	28
PID 2856 wrote to memory of 2848	2856	cmd.exe	30
PID 2856 wrote to memory of 2848	2856	cmd.exe	30
PID 2856 wrote to memory of 2848	2856	cmd.exe	30
PID 1196 wrote to memory of 2520	1196	Process not Found	31
PID 1196 wrote to memory of 2520	1196	Process not Found	31
PID 1196 wrote to memory of 2520	1196	Process not Found	31
PID 1196 wrote to memory of 2520	1196	Process not Found	31
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2520 wrote to memory of 2516	2520	BBF0.exe	32
PID 2516 wrote to memory of 1624	2516	BBF0.exe	36
PID 2516 wrote to memory of 1624	2516	BBF0.exe	36
PID 2516 wrote to memory of 1624	2516	BBF0.exe	36
PID 2516 wrote to memory of 1624	2516	BBF0.exe	36
PID 2516 wrote to memory of 1548	2516	BBF0.exe	37
PID 2516 wrote to memory of 1548	2516	BBF0.exe	37
PID 2516 wrote to memory of 1548	2516	BBF0.exe	37
PID 2516 wrote to memory of 1548	2516	BBF0.exe	37
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1548 wrote to memory of 1892	1548	BBF0.exe	38
PID 1892 wrote to memory of 708	1892	BBF0.exe	40
PID 1892 wrote to memory of 708	1892	BBF0.exe	40
PID 1892 wrote to memory of 708	1892	BBF0.exe	40
PID 1892 wrote to memory of 708	1892	BBF0.exe	40
PID 708 wrote to memory of 616	708	build2.exe	41
PID 708 wrote to memory of 616	708	build2.exe	41
PID 708 wrote to memory of 616	708	build2.exe	41
PID 708 wrote to memory of 616	708	build2.exe	41
PID 708 wrote to memory of 616	708	build2.exe	41
PID 708 wrote to memory of 616	708	build2.exe	41
PID 708 wrote to memory of 616	708	build2.exe	41
PID 708 wrote to memory of 616	708	build2.exe	41
PID 708 wrote to memory of 616	708	build2.exe	41
PID 708 wrote to memory of 616	708	build2.exe	41
PID 708 wrote to memory of 616	708	build2.exe	41
PID 1892 wrote to memory of 1332	1892	BBF0.exe	42
PID 1892 wrote to memory of 1332	1892	BBF0.exe	42
PID 1892 wrote to memory of 1332	1892	BBF0.exe	42
PID 1892 wrote to memory of 1332	1892	BBF0.exe	42
PID 1332 wrote to memory of 1688	1332	build3.exe	43
PID 1332 wrote to memory of 1688	1332	build3.exe	43
PID 1332 wrote to memory of 1688	1332	build3.exe	43
PID 1332 wrote to memory of 1688	1332	build3.exe	43
PID 1332 wrote to memory of 1688	1332	build3.exe	43

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- DcRat
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2360

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\6A28.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
  2⤵
  PID:2848

C:\Users\Admin\AppData\Local\Temp\BBF0.exe
C:\Users\Admin\AppData\Local\Temp\BBF0.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Users\Admin\AppData\Local\Temp\BBF0.exe
  C:\Users\Admin\AppData\Local\Temp\BBF0.exe
  2⤵
  - DcRat
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\3057304b-953d-430a-a80a-e9e58f1a2983" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1624
- - C:\Users\Admin\AppData\Local\Temp\BBF0.exe
    "C:\Users\Admin\AppData\Local\Temp\BBF0.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1548
  - - C:\Users\Admin\AppData\Local\Temp\BBF0.exe
      "C:\Users\Admin\AppData\Local\Temp\BBF0.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:1892
    - - C:\Users\Admin\AppData\Local\6c168ae0-49b1-4d2e-9860-bbf36f454b47\build2.exe
        
        "C:\Users\Admin\AppData\Local\6c168ae0-49b1-4d2e-9860-bbf36f454b47\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:708
      - C:\Users\Admin\AppData\Local\6c168ae0-49b1-4d2e-9860-bbf36f454b47\build2.exe
        
        "C:\Users\Admin\AppData\Local\6c168ae0-49b1-4d2e-9860-bbf36f454b47\build2.exe"
        6⤵
        Executes dropped EXE
        Modifies system certificate store
        
        PID:616
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 616 -s 1408
        7⤵
        Loads dropped DLL
        Program crash
        
        PID:2192
    - - C:\Users\Admin\AppData\Local\6c168ae0-49b1-4d2e-9860-bbf36f454b47\build3.exe
        
        "C:\Users\Admin\AppData\Local\6c168ae0-49b1-4d2e-9860-bbf36f454b47\build3.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1332
      - C:\Users\Admin\AppData\Local\6c168ae0-49b1-4d2e-9860-bbf36f454b47\build3.exe
        
        "C:\Users\Admin\AppData\Local\6c168ae0-49b1-4d2e-9860-bbf36f454b47\build3.exe"
        6⤵
        Executes dropped EXE
        
        PID:1688
        
        C:\Windows\SysWOW64\schtasks.exe
        
        /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
        7⤵
        DcRat
        Creates scheduled task(s)
        
        PID:972

C:\Windows\system32\taskeng.exe
taskeng.exe {707C8EBB-4FEF-4DD0-8FAA-475F5940A6C9} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]
1⤵
PID:2532
- C:\Users\Admin\AppData\Roaming\iibfwgj
  C:\Users\Admin\AppData\Roaming\iibfwgj
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:2556
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:2024
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    PID:1820
  - - C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      4⤵
      DcRat
      Creates scheduled task(s)
      PID:1668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Size 1KB
SHA256 01c3b73c8427813d741d471ac6d78afbc26a7991c125d68d1cf942d257c4cac2
MD5 76a64ac22ff82b344b1cfe3a393ee97f
SHA1 fd86102582ea4d706df9f84eeba6714a568dbe79
SHA512 edcf046f72f2d05aff1b854fc8f79ae954f11f1b47d337ac25ef9819c7b8fceb206892d1f92ebd41751ee754a029a5d70963cf28f5465fdb3081f6499153215b
MD5 SHA1 SHA512

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94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Size 67KB
SHA256 b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78
MD5 753df6889fd7410a2e9fe333da83a429
SHA1 3c425f16e8267186061dd48ac1c77c122962456e
SHA512 9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444
SSDEEP 1536:4vHkVfDISE//aDY0WAXTF+0daIpyFQaqPZkatNjgkFOE4/JZZWnEn6:4vHKfMSeKFXdBcmnXkksE40E6
MD5 SHA1 SHA512 SSDEEP

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CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Size 724B
SHA256 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
MD5 8202a1cd02e7d69597995cabbe881a12
SHA1 8858d9d934b7aa9330ee73de6c476acf19929ff6
SHA512 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
MD5 SHA1 SHA512

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24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Size 410B
SHA256 7f9bf192caec5bc5b581f783df951ee78e61aca93dfc516e85d262837009b613
MD5 4e2fc3072033495a9917a34ddfc1a7c1
SHA1 b607173dad695b5a1ac488a1be232512a36cd2b9
SHA512 bbedfe1164ae32f94af4e45667357b47551306d2d994158c1468bdf446f26ded0e1072bf1503d3516b55255a5d0ea60db9d45dedffc2380bc9d3552ad4289695
MD5 SHA1 SHA512

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94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Size 344B
SHA256 c5211f2199f27fb430675d080bdbdf2576b481edd33b55742272f3b2700c468e
MD5 f4a9caa7347f1d9fc6e0310ed44fc66c
SHA1 933f09412494ee79f2fee37b45f4726e8b2d4b62
SHA512 24429c89530374456ee6d0dff1f55a75b29595c503dac8a8e7fa3ed71dc63515ee5ceba711cc4297b81c4cac260b91dd7c73f6a21972042a8af2cc01c6bc0e47
MD5 SHA1 SHA512

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CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Size 392B
SHA256 662cf04606c3cdacfda510d3a03669cb968c7289ca2e29c1da29c9cf7cab727a
MD5 33748044228e4cdf993543b894773606
SHA1 30742bb988927a76484e901308ba297875ca8bf9
SHA512 d5438f12ec05897a5044db1d59705d75c221905eff1c6b9236191517de8547272200c43eaf7cd2c9cb3be1072535293d527d5b987f1816131cb48df5ea7027f6
MD5 SHA1 SHA512

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build3.exe

Path C:\Users\Admin\AppData\Local\6c168ae0-49b1-4d2e-9860-bbf36f454b47\build3.exe
Size 299KB
SHA256 fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408
MD5 41b883a061c95e9b9cb17d4ca50de770
SHA1 1daf96ec21d53d9a4699cea9b4db08cda6fbb5ad
SHA512 cdd1bb3a36182575cd715a52815765161eeaa3849e72c1c2a9a4e84cc43af9f8ec4997e642702bb3de41f162d2e8fd8717f6f8302bba5306821ee4d155626319
SSDEEP 6144:2neDcgRQv5VaNT9DW7a6dtM9VstSttuvqIT:2O0v5VuT9DW7hdt9tKt2qI
MD5 SHA1 SHA512 SSDEEP

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6A28.bat

Path C:\Users\Admin\AppData\Local\Temp\6A28.bat
Size 77B
SHA256 d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a
MD5 55cc761bf3429324e5a0095cab002113
SHA1 2cc1ef4542a4e92d4158ab3978425d517fafd16d
SHA512 33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155
MD5 SHA1 SHA512

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BBF0.exe

Path C:\Users\Admin\AppData\Local\Temp\BBF0.exe
Size 750KB
SHA256 d0b7d65ab265def9f3bccc7c84f7517b8083378bc810fd3f4e8c9743daa87fce
MD5 1c6abe78bc0883f0f2a5031c2c6e04b7
SHA1 f5c5f506aea041d0979ecc5bc1efdbe86213eb82
SHA512 946c09da07f79438395cbd13bd309193eebb16c992e98ccdc3cc56ba143ecc6624dc5402ebd25a577a38430540483c2be530f361e041e27d174eb8bb61064bcc
SSDEEP 12288:Gahc5QQAYW2dmNCxak3pMtkuJZKSevqbNoIbAz0vH4sfsuFz55iPavcPGuAHwn:hO5pxv5N3GtkMhZb94sRFbi4cux
MD5 SHA1 SHA512 SSDEEP

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CabD2D9.tmp

Path C:\Users\Admin\AppData\Local\Temp\CabD2D9.tmp
Size 65KB
SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
MD5 ac05d27423a85adc1622c714f2cb6184
SHA1 b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA512 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
SSDEEP 1536:drFvD2YSE/sFDqV0FJJynkAhftCvMd3coa282frgW1qgNzU:drVDJSeaDqV0FJwLhVkr282fF5U
MD5 SHA1 SHA512 SSDEEP

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Tar287.tmp

Path C:\Users\Admin\AppData\Local\Temp\Tar287.tmp
Size 175KB
SHA256 a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22
MD5 dd73cead4b93366cf3465c8cd32e2796
SHA1 74546226dfe9ceb8184651e920d1dbfb432b314e
SHA512 ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63
SSDEEP 1536:DAuJ+lCUsTRvsqgCyqWlUDNWdm1wpSru2A0XwjY/z02DTr3rmt6mr:D9J+qTR0XCy/dmASru2Aijbd0
MD5 SHA1 SHA512 SSDEEP

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TarFF85.tmp

Path C:\Users\Admin\AppData\Local\Temp\TarFF85.tmp
Size 171KB
SHA256 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
MD5 9c0c641c06238516f27941aa1166d427
SHA1 64cd549fb8cf014fcd9312aa7a5b023847b6c977
SHA512 936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06
SSDEEP 1536:+AuJ+lCUs0RvWqgCyPW5BXNWdm1wpyru2/3EwjYoz0VDTrubmt6mJp:+9J+q0RuXCyfdmAyru2/RAKtgp
MD5 SHA1 SHA512 SSDEEP

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mstsca.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
Size 192KB
SHA256 b1e0b896d1cdbe0cfe16d1d6f604640e2b22aeb144eb411086fa31d2073f316e
MD5 5c883ef6d1ad03173f30db4fc691d0a7
SHA1 4007444885a94ad3092e287a196249bc6c1301ef
SHA512 125b18de452ee08cc42806f15864bb5429403ca696e385d5fb32d87cde841629e12f0d64c308c8ff7444d36c5da71e75fdc66733418bc886cad6a6e9ba7eb816
SSDEEP 3072:2SNChBNpSjDp+UidGSXiFhzQZV5VaNLv9DW7dt26dtMdTk4JW:2neDcgRQv5VaNT9DW7a6dtM9VA
MD5 SHA1 SHA512 SSDEEP

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iibfwgj

Path C:\Users\Admin\AppData\Roaming\iibfwgj
Size 222KB
SHA256 50c5fa2b2078b52d54657e174f05dcc98bd3e409eeef19baf60b65f041bfe5d2
MD5 9c1da8b1d3b039cb60be5a47ef2889c5
SHA1 a759a61d392c040fae148756d15bdb625899491a
SHA512 e46c01f7afc420e682138523386434cd256ddfeee306d287833ee0570db0c9729aada175454c96fe700b3cba7f004399eb99011b32f47d6cad3e22fc95a80241
SSDEEP 3072:mkAodp8N/dorgUDXqlo3+/PU3FhyIY2JOmUH3hR6TbML1P4kAu8TMGz5:mkAoj8N/+xXt+/83+lH3hKAL1ZAuwnF
MD5 SHA1 SHA512 SSDEEP

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build2.exe

Path \Users\Admin\AppData\Local\6c168ae0-49b1-4d2e-9860-bbf36f454b47\build2.exe
Size 295KB
SHA256 a6a9375dd6e3b285bc6d65536a151a47dd136aced8180492f5ed6a391edf0d64
MD5 47704f454af8641dac1af2e2768d7881
SHA1 e3341bfdec84f69684aecde18cab2864519c7728
SHA512 9aea598ee30342a88fedf5eca2b104e8c5587cd284bd43229581b04497c60e6a71e5392a171a5dfbe88a2e41269434922e21c3f7f9682e2ea10b27b104606b25
SSDEEP 3072:+r+fUp96oV/N0Fh7kO77iIBRjM1J6h+sZbXh4KtHNGiKZYpzCInrae/:+r56k124yVoJ6h+abx4GYZkW4r
MD5 SHA1 SHA512 SSDEEP

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memory/616-116-0x0000000000400000-0x0000000000644000-memory.dmp

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memory/616-200-0x0000000000400000-0x0000000000644000-memory.dmp

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memory/616-109-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/616-112-0x0000000000400000-0x0000000000644000-memory.dmp

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memory/616-115-0x0000000000400000-0x0000000000644000-memory.dmp

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memory/708-110-0x0000000000230000-0x0000000000261000-memory.dmp

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memory/708-108-0x0000000000870000-0x0000000000970000-memory.dmp

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memory/1196-4-0x0000000002D40000-0x0000000002D56000-memory.dmp

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memory/1196-230-0x0000000002FD0000-0x0000000002FE6000-memory.dmp

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memory/1332-136-0x00000000009D2000-0x00000000009E3000-memory.dmp

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memory/1332-139-0x0000000000220000-0x0000000000224000-memory.dmp

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memory/1548-63-0x0000000000500000-0x0000000000591000-memory.dmp

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memory/1548-62-0x0000000000500000-0x0000000000591000-memory.dmp

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memory/1688-134-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1688-132-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/1688-142-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1688-140-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1892-93-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1892-91-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1892-87-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1892-117-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1892-86-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1892-71-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1892-70-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1892-94-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2024-224-0x0000000000880000-0x0000000000980000-memory.dmp

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memory/2360-5-0x0000000000400000-0x0000000000477000-memory.dmp

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memory/2360-3-0x0000000000400000-0x0000000000477000-memory.dmp

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memory/2360-2-0x00000000003B0000-0x00000000003BB000-memory.dmp

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memory/2360-1-0x00000000008C0000-0x00000000009C0000-memory.dmp

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memory/2516-36-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2516-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2516-33-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2516-37-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2516-60-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2520-30-0x0000000000500000-0x000000000061B000-memory.dmp

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memory/2520-27-0x0000000000220000-0x00000000002B1000-memory.dmp

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memory/2520-26-0x0000000000220000-0x00000000002B1000-memory.dmp

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memory/2556-227-0x00000000005F0000-0x00000000006F0000-memory.dmp

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memory/2556-228-0x0000000000400000-0x0000000000477000-memory.dmp

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memory/2556-231-0x0000000000400000-0x0000000000477000-memory.dmp

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