djvu | 6ba1032624069a6bd1ff582c5e83832976fb693dd8814c4ac14e94dbbdf4c00d

Resubmissions

14/03/2024, 16:15

240314-tqmebsag25 10

14/03/2024, 15:36

240314-s1w6vafg9t 10

Analysis

max time kernel
150s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 15:36

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Report Analysis Logs

General

Target

5b9adba171cd2853acc8533c96e1c814.exe
Size

271KB
MD5

5b9adba171cd2853acc8533c96e1c814
SHA1

d415ff5fc9caa6fd4e7e69bc8ea7b42e9c84e7b1
SHA256

6ba1032624069a6bd1ff582c5e83832976fb693dd8814c4ac14e94dbbdf4c00d
SHA512

27f2f2c4670fddcb40364e6373561261a5631353651bc29c72e1bd270c594db084351b8cc25c531fe5097c9ab5fe0c0b3f173a36e3b47901ebf7cd3763074bd5
SSDEEP

3072:s+qUpt6FGAamWyuILne8gQ0LaP9um8JVNhdPWleHO2ImTHrNlokp8ae:sG6oATg8XMkEJvhd+leuFm/K

Score

10^/10

djvu lumma smokeloader pub1 backdoor discovery persistence ransomware 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

lumma

https://colorfulequalugliess.shop/api

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/4992-21-0x00000000021D0000-0x00000000022EB000-memory.dmp	family_djvu
behavioral2/memory/3388-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3388-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3388-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3388-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3388-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4088-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4088-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4088-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Lumma Stealer
An infostealer written in C++ first seen in August 2022.
stealer lumma
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Downloads MZ/PE file

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	286F.exe

Deletes itself 1 IoCs

pid	Process
3344	Process not Found

Executes dropped EXE 5 IoCs

pid	Process
4992	286F.exe
3388	286F.exe
4360	42BE.exe
380	286F.exe
4088	286F.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1148	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-1-5-21-2727153400-192325109-1870347593-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ee142792-651f-4bbd-a600-98ad69c0daab\\286F.exe\" --AutoStart"	286F.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
176	api.2ip.ua
177	api.2ip.ua

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4992 set thread context of 3388	4992	286F.exe	112
PID 4360 set thread context of 3916	4360	42BE.exe	118
PID 380 set thread context of 4088	380	286F.exe	123

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1020	4088	WerFault.exe	123
4068	3916	WerFault.exe	118

Checks SCSI registry key(s) 3 TTPs 3 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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	5b9adba171cd2853acc8533c96e1c814.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	5b9adba171cd2853acc8533c96e1c814.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	5b9adba171cd2853acc8533c96e1c814.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1540	5b9adba171cd2853acc8533c96e1c814.exe
1540	5b9adba171cd2853acc8533c96e1c814.exe
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found
3344	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1540	5b9adba171cd2853acc8533c96e1c814.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3344	Process not Found
Token: SeCreatePagefilePrivilege	3344	Process not Found
Token: SeShutdownPrivilege	3344	Process not Found
Token: SeCreatePagefilePrivilege	3344	Process not Found
Token: SeShutdownPrivilege	3344	Process not Found
Token: SeCreatePagefilePrivilege	3344	Process not Found
Token: SeShutdownPrivilege	3344	Process not Found
Token: SeCreatePagefilePrivilege	3344	Process not Found
Token: SeShutdownPrivilege	3344	Process not Found
Token: SeCreatePagefilePrivilege	3344	Process not Found
Token: SeShutdownPrivilege	3344	Process not Found
Token: SeCreatePagefilePrivilege	3344	Process not Found
Token: SeShutdownPrivilege	3344	Process not Found
Token: SeCreatePagefilePrivilege	3344	Process not Found
Token: SeShutdownPrivilege	3344	Process not Found
Token: SeCreatePagefilePrivilege	3344	Process not Found
Token: SeShutdownPrivilege	3344	Process not Found
Token: SeCreatePagefilePrivilege	3344	Process not Found

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3344	Process not Found

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 3344 wrote to memory of 4828	3344	Process not Found	98
PID 3344 wrote to memory of 4828	3344	Process not Found	98
PID 4828 wrote to memory of 3168	4828	cmd.exe	100
PID 4828 wrote to memory of 3168	4828	cmd.exe	100
PID 3344 wrote to memory of 4992	3344	Process not Found	111
PID 3344 wrote to memory of 4992	3344	Process not Found	111
PID 3344 wrote to memory of 4992	3344	Process not Found	111
PID 4992 wrote to memory of 3388	4992	286F.exe	112
PID 4992 wrote to memory of 3388	4992	286F.exe	112
PID 4992 wrote to memory of 3388	4992	286F.exe	112
PID 4992 wrote to memory of 3388	4992	286F.exe	112
PID 4992 wrote to memory of 3388	4992	286F.exe	112
PID 4992 wrote to memory of 3388	4992	286F.exe	112
PID 4992 wrote to memory of 3388	4992	286F.exe	112
PID 4992 wrote to memory of 3388	4992	286F.exe	112
PID 4992 wrote to memory of 3388	4992	286F.exe	112
PID 4992 wrote to memory of 3388	4992	286F.exe	112
PID 3344 wrote to memory of 4360	3344	Process not Found	116
PID 3344 wrote to memory of 4360	3344	Process not Found	116
PID 3344 wrote to memory of 4360	3344	Process not Found	116
PID 4360 wrote to memory of 3916	4360	42BE.exe	118
PID 4360 wrote to memory of 3916	4360	42BE.exe	118
PID 4360 wrote to memory of 3916	4360	42BE.exe	118
PID 4360 wrote to memory of 3916	4360	42BE.exe	118
PID 4360 wrote to memory of 3916	4360	42BE.exe	118
PID 4360 wrote to memory of 3916	4360	42BE.exe	118
PID 4360 wrote to memory of 3916	4360	42BE.exe	118
PID 4360 wrote to memory of 3916	4360	42BE.exe	118
PID 4360 wrote to memory of 3916	4360	42BE.exe	118
PID 3388 wrote to memory of 1148	3388	286F.exe	119
PID 3388 wrote to memory of 1148	3388	286F.exe	119
PID 3388 wrote to memory of 1148	3388	286F.exe	119
PID 3388 wrote to memory of 380	3388	286F.exe	120
PID 3388 wrote to memory of 380	3388	286F.exe	120
PID 3388 wrote to memory of 380	3388	286F.exe	120
PID 380 wrote to memory of 4088	380	286F.exe	123
PID 380 wrote to memory of 4088	380	286F.exe	123
PID 380 wrote to memory of 4088	380	286F.exe	123
PID 380 wrote to memory of 4088	380	286F.exe	123
PID 380 wrote to memory of 4088	380	286F.exe	123
PID 380 wrote to memory of 4088	380	286F.exe	123
PID 380 wrote to memory of 4088	380	286F.exe	123
PID 380 wrote to memory of 4088	380	286F.exe	123
PID 380 wrote to memory of 4088	380	286F.exe	123
PID 380 wrote to memory of 4088	380	286F.exe	123

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\5b9adba171cd2853acc8533c96e1c814.exe
"C:\Users\Admin\AppData\Local\Temp\5b9adba171cd2853acc8533c96e1c814.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1540

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\C98A.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:4828
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
  2⤵
  PID:3168

C:\Users\Admin\AppData\Local\Temp\286F.exe
C:\Users\Admin\AppData\Local\Temp\286F.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Users\Admin\AppData\Local\Temp\286F.exe
  C:\Users\Admin\AppData\Local\Temp\286F.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3388
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\ee142792-651f-4bbd-a600-98ad69c0daab" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1148
- - C:\Users\Admin\AppData\Local\Temp\286F.exe
    "C:\Users\Admin\AppData\Local\Temp\286F.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:380
  - - C:\Users\Admin\AppData\Local\Temp\286F.exe
      "C:\Users\Admin\AppData\Local\Temp\286F.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Executes dropped EXE
      PID:4088
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4088 -s 568
        5⤵
        Program crash
        
        PID:1020

C:\Users\Admin\AppData\Local\Temp\42BE.exe
C:\Users\Admin\AppData\Local\Temp\42BE.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4360
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:3916
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3916 -s 1200
    3⤵
    - Program crash
    PID:4068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4088 -ip 4088
1⤵
PID:3340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3916 -ip 3916
1⤵
PID:4292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

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

C:\Users\Admin\AppData\Local\Temp\286F.exe

Filesize
736KB

MD5
686acf922c225ce9d019e006fd54b4ef

SHA1
b04872c5f46bf955421c4ba4c7cf40954e14170c

SHA256
ba5224f8d623bd63a67b33fff7aa5cf73dea837e08b81423016b925db5125758

SHA512
414b5a07ced21027000c82adff218a41b88c1ad0b19d2e851a3637841d6beda7047fa9e8a81944bed3ccdec6307ded7af0eff474dfa19873c58d033e64707014

Download Submit
C:\Users\Admin\AppData\Local\Temp\42BE.exe

Filesize
340KB

MD5
e79d42e6b51653c6a459adc6e6cd0e7d

SHA1
19590e4efcea7b916825669075fb59de0aae0600

SHA256
3e1451fbd94c852f561fdb5332a5a8576d940d95b1a8cff4dfc0285bc9fc0b14

SHA512
17f70d269b7be8fe4d8fa2b5bca88188c318991ac168d54f37237bbacaf9804e8aa7e6b81a2320bcd61d2a109728461d8082cd69e6b0ed8f1f90600b1ecaed9f

Download Submit
C:\Users\Admin\AppData\Local\Temp\C98A.bat

Filesize
77B

MD5
55cc761bf3429324e5a0095cab002113

SHA1
2cc1ef4542a4e92d4158ab3978425d517fafd16d

SHA256
d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

SHA512
33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

Download Submit
memory/380-60-0x0000000002170000-0x000000000220C000-memory.dmp

Filesize
624KB

Download
memory/1540-2-0x0000000000870000-0x000000000087B000-memory.dmp

Filesize
44KB

Download
memory/1540-3-0x0000000000400000-0x000000000071E000-memory.dmp

Filesize
3.1MB

Download
memory/1540-1-0x0000000000AB0000-0x0000000000BB0000-memory.dmp

Filesize
1024KB

Download
memory/1540-5-0x0000000000400000-0x000000000071E000-memory.dmp

Filesize
3.1MB

Download
memory/3344-4-0x00000000025C0000-0x00000000025D6000-memory.dmp

Filesize
88KB

Download
memory/3388-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3388-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3388-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3388-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3388-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3916-52-0x0000000002D30000-0x0000000002D62000-memory.dmp

Filesize
200KB

Download
memory/3916-53-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3916-42-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3916-47-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3916-69-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3916-54-0x0000000002EB0000-0x0000000002EF0000-memory.dmp

Filesize
256KB

Download
memory/3916-50-0x0000000002D30000-0x0000000002D62000-memory.dmp

Filesize
200KB

Download
memory/3916-51-0x0000000002D30000-0x0000000002D62000-memory.dmp

Filesize
200KB

Download
memory/4088-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4088-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4088-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4360-49-0x0000000002D50000-0x0000000004D50000-memory.dmp

Filesize
32.0MB

Download
memory/4360-32-0x00000000008B0000-0x0000000000906000-memory.dmp

Filesize
344KB

Download
memory/4360-33-0x0000000073470000-0x0000000073C20000-memory.dmp

Filesize
7.7MB

Download
memory/4360-48-0x0000000073470000-0x0000000073C20000-memory.dmp

Filesize
7.7MB

Download
memory/4360-70-0x0000000002D50000-0x0000000004D50000-memory.dmp

Filesize
32.0MB

Download
memory/4992-21-0x00000000021D0000-0x00000000022EB000-memory.dmp

Filesize
1.1MB

Download
memory/4992-20-0x0000000002120000-0x00000000021BE000-memory.dmp

Filesize
632KB

Download