djvu | 91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49

Analysis

max time kernel
145s
max time network
152s
platform
windows10_x64
resource
win10v20210408
submitted
26-08-2021 14:45

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General

Target

91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
Size

721KB
MD5

92baa6d072d591b827950b6bc4730057
SHA1

17e968a7d200a75fcec9b6967bd635d8633405d9
SHA256

91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49
SHA512

21cd5c7c535b333c6e7297f0edb1d03cad96c24114d3318b6943c0af57c81e2486c6056103617222c3c7650ce666945c7fb4080947ae4946219acf229cd3f0da

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer

Malware Config

Extracted

Path

C:\_readme.txt

Family

djvu

Ransom Note

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. You can get and look video overview decrypt tool: https://we.tl/t-ykQaS2tRyB Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: 0328gDrgoC4j04vLx6lqyFlyzpTC55w9igCGDgaBYLhUjv3Rr

Emails

[email protected]

URLs

https://we.tl/t-ykQaS2tRyB

Extracted

Family

vidar

Version

40.1

Botnet

517

https://eduarroma.tumblr.com/

Attributes

profile_id
517

Signatures

Detected Djvu ransomeware 8 IoCs

resource	yara_rule
behavioral1/memory/3148-114-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3148-115-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/900-116-0x0000000004AB0000-0x0000000004BCB000-memory.dmp	family_djvu
behavioral1/memory/3148-117-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3832-122-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/3832-127-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/644-169-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/644-171-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/1824-132-0x000000000046B77D-mapping.dmp	family_vidar
behavioral1/memory/1824-131-0x0000000000400000-0x00000000004A1000-memory.dmp	family_vidar
behavioral1/memory/1824-135-0x0000000000400000-0x00000000004A1000-memory.dmp	family_vidar
behavioral1/memory/3464-134-0x0000000002480000-0x000000000252E000-memory.dmp	family_vidar

Downloads MZ/PE file

Executes dropped EXE 10 IoCs

pid	Process
3464	build2.exe
1824	build2.exe
1924	build3.exe
4064	build3.exe
508	mstsca.exe
3820	mstsca.exe
564	mstsca.exe
2208	mstsca.exe
2384	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
644	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe

Modifies extensions of user files 6 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\ExportWrite.crw => C:\Users\Admin\Pictures\ExportWrite.crw.orkf	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
File renamed	C:\Users\Admin\Pictures\RenameUse.crw => C:\Users\Admin\Pictures\RenameUse.crw.orkf	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
File renamed	C:\Users\Admin\Pictures\ShowStep.tif => C:\Users\Admin\Pictures\ShowStep.tif.orkf	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
File renamed	C:\Users\Admin\Pictures\TestRestore.tif => C:\Users\Admin\Pictures\TestRestore.tif.orkf	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
File renamed	C:\Users\Admin\Pictures\ConvertFromStop.raw => C:\Users\Admin\Pictures\ConvertFromStop.raw.orkf	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
File renamed	C:\Users\Admin\Pictures\DenyRevoke.crw => C:\Users\Admin\Pictures\DenyRevoke.crw.orkf	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe

Loads dropped DLL 2 IoCs

pid	Process
1824	build2.exe
1824	build2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2936	icacls.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\c1df307e-a78e-414f-86dc-9441c03b3e34\\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe\" --AutoStart"	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 4 IoCs

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

flow	ioc
10	api.2ip.ua
11	api.2ip.ua
22	api.2ip.ua
39	api.2ip.ua

Suspicious use of SetThreadContext 7 IoCs

description	pid	Process	procid_target
PID 900 set thread context of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 1352 set thread context of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 3464 set thread context of 1824	3464	build2.exe	84
PID 1924 set thread context of 4064	1924	build3.exe	86
PID 508 set thread context of 3820	508	mstsca.exe	94
PID 564 set thread context of 2208	564	mstsca.exe	98
PID 2384 set thread context of 644	2384	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	100

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	build2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.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

T1053

pid	Process
3812	schtasks.exe
3480	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4080	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
716	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
3148	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
3148	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
3832	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
3832	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
1824	build2.exe
1824	build2.exe
1824	build2.exe
1824	build2.exe
1824	build2.exe
1824	build2.exe
1824	build2.exe
1824	build2.exe
3832	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
3832	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
644	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
644	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	716	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 900 wrote to memory of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 900 wrote to memory of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 900 wrote to memory of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 900 wrote to memory of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 900 wrote to memory of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 900 wrote to memory of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 900 wrote to memory of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 900 wrote to memory of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 900 wrote to memory of 3148	900	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	77
PID 3148 wrote to memory of 2936	3148	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	78
PID 3148 wrote to memory of 2936	3148	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	78
PID 3148 wrote to memory of 2936	3148	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	78
PID 3148 wrote to memory of 1352	3148	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	79
PID 3148 wrote to memory of 1352	3148	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	79
PID 3148 wrote to memory of 1352	3148	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	79
PID 1352 wrote to memory of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 1352 wrote to memory of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 1352 wrote to memory of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 1352 wrote to memory of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 1352 wrote to memory of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 1352 wrote to memory of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 1352 wrote to memory of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 1352 wrote to memory of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 1352 wrote to memory of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 1352 wrote to memory of 3832	1352	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	82
PID 3832 wrote to memory of 3464	3832	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	83
PID 3832 wrote to memory of 3464	3832	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	83
PID 3832 wrote to memory of 3464	3832	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	83
PID 3464 wrote to memory of 1824	3464	build2.exe	84
PID 3464 wrote to memory of 1824	3464	build2.exe	84
PID 3464 wrote to memory of 1824	3464	build2.exe	84
PID 3464 wrote to memory of 1824	3464	build2.exe	84
PID 3464 wrote to memory of 1824	3464	build2.exe	84
PID 3464 wrote to memory of 1824	3464	build2.exe	84
PID 3464 wrote to memory of 1824	3464	build2.exe	84
PID 3464 wrote to memory of 1824	3464	build2.exe	84
PID 3832 wrote to memory of 1924	3832	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	85
PID 3832 wrote to memory of 1924	3832	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	85
PID 3832 wrote to memory of 1924	3832	91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe	85
PID 1924 wrote to memory of 4064	1924	build3.exe	86
PID 1924 wrote to memory of 4064	1924	build3.exe	86
PID 1924 wrote to memory of 4064	1924	build3.exe	86
PID 1924 wrote to memory of 4064	1924	build3.exe	86
PID 1924 wrote to memory of 4064	1924	build3.exe	86
PID 1924 wrote to memory of 4064	1924	build3.exe	86
PID 1924 wrote to memory of 4064	1924	build3.exe	86
PID 1924 wrote to memory of 4064	1924	build3.exe	86
PID 1924 wrote to memory of 4064	1924	build3.exe	86
PID 4064 wrote to memory of 3812	4064	build3.exe	87
PID 4064 wrote to memory of 3812	4064	build3.exe	87
PID 4064 wrote to memory of 3812	4064	build3.exe	87
PID 1824 wrote to memory of 192	1824	build2.exe	89
PID 1824 wrote to memory of 192	1824	build2.exe	89
PID 1824 wrote to memory of 192	1824	build2.exe	89
PID 192 wrote to memory of 716	192	cmd.exe	91
PID 192 wrote to memory of 716	192	cmd.exe	91
PID 192 wrote to memory of 716	192	cmd.exe	91
PID 192 wrote to memory of 4080	192	cmd.exe	92
PID 192 wrote to memory of 4080	192	cmd.exe	92
PID 192 wrote to memory of 4080	192	cmd.exe	92
PID 508 wrote to memory of 3820	508	mstsca.exe	94
PID 508 wrote to memory of 3820	508	mstsca.exe	94
PID 508 wrote to memory of 3820	508	mstsca.exe	94

C:\Users\Admin\AppData\Local\Temp\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
"C:\Users\Admin\AppData\Local\Temp\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:900
- C:\Users\Admin\AppData\Local\Temp\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
  "C:\Users\Admin\AppData\Local\Temp\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3148
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\c1df307e-a78e-414f-86dc-9441c03b3e34" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:2936
- - C:\Users\Admin\AppData\Local\Temp\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
    "C:\Users\Admin\AppData\Local\Temp\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1352
  - - C:\Users\Admin\AppData\Local\Temp\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
      "C:\Users\Admin\AppData\Local\Temp\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Modifies extensions of user files
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:3832
    - - C:\Users\Admin\AppData\Local\d6e72f6e-67c6-4b14-aeac-e35e85c271f3\build2.exe
        
        "C:\Users\Admin\AppData\Local\d6e72f6e-67c6-4b14-aeac-e35e85c271f3\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:3464
      - C:\Users\Admin\AppData\Local\d6e72f6e-67c6-4b14-aeac-e35e85c271f3\build2.exe
        
        "C:\Users\Admin\AppData\Local\d6e72f6e-67c6-4b14-aeac-e35e85c271f3\build2.exe"
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:1824
        
        C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\d6e72f6e-67c6-4b14-aeac-e35e85c271f3\build2.exe" & del C:\ProgramData\*.dll & exit
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:192
        
        C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im build2.exe /f
        8⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:716
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 6
        8⤵
        Delays execution with timeout.exe
        
        PID:4080
    - - C:\Users\Admin\AppData\Local\d6e72f6e-67c6-4b14-aeac-e35e85c271f3\build3.exe
        
        "C:\Users\Admin\AppData\Local\d6e72f6e-67c6-4b14-aeac-e35e85c271f3\build3.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1924
      - C:\Users\Admin\AppData\Local\d6e72f6e-67c6-4b14-aeac-e35e85c271f3\build3.exe
        
        "C:\Users\Admin\AppData\Local\d6e72f6e-67c6-4b14-aeac-e35e85c271f3\build3.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:4064
        
        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⤵
        Creates scheduled task(s)
        
        PID:3812

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:508
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  PID:3820
- - 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"
    3⤵
    - Creates scheduled task(s)
    PID:3480

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:564
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  PID:2208

C:\Users\Admin\AppData\Local\c1df307e-a78e-414f-86dc-9441c03b3e34\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
C:\Users\Admin\AppData\Local\c1df307e-a78e-414f-86dc-9441c03b3e34\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe --Task
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:2384
- C:\Users\Admin\AppData\Local\c1df307e-a78e-414f-86dc-9441c03b3e34\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe
  C:\Users\Admin\AppData\Local\c1df307e-a78e-414f-86dc-9441c03b3e34\91e437e7ba475e248127177f79b578bc0f73cd9ec8fd2eb9d380eea88e939f49.exe --Task
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:644

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/508-162-0x00000000032A0000-0x00000000032A4000-memory.dmp

Filesize
16KB

Download
memory/644-171-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/900-116-0x0000000004AB0000-0x0000000004BCB000-memory.dmp

Filesize
1.1MB

Download
memory/1824-131-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/1824-135-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/1924-142-0x0000000003250000-0x00000000032FE000-memory.dmp

Filesize
696KB

Download
memory/3148-114-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3148-117-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3464-134-0x0000000002480000-0x000000000252E000-memory.dmp

Filesize
696KB

Download
memory/3832-127-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4064-143-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4064-139-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download