7515891da490d8fb807fa68ea40e27d0fb25a111c17b5a06cafe770f74c51599

General

Target

Catelog.jpg.exe
Size

123KB
MD5

458a2379358ae7cdd5a47059277338ca
SHA1

c3753cfa681d226b772a3ab6bc462a5c29791fa0
SHA256

d954de23f8e04cff445b91436fdaf60b05c18e115c3dda8afce8460d72fb1fa7
SHA512

fe182750f864b963f5ca970013bf5003dd108c7e7d69c981d9b8779b8276727b464fd5a1978dffd68e9e52e809bf7ce23206114d58f6aba3d87d4e8b5d768705
SSDEEP

3072:wJQ8sYDCBvQTYMGWdQUkv2Gc1eGktXENiTRWnTuX8Wr:yERqTfGDHv+DvoTROTu

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

lsass.exe

pid process

116 lsass.exe

pid	process
116	lsass.exe

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

Processes:

Catelog.jpg.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Catelog.jpg.exe

Drops startup file 1 IoCs

Processes:

cvtres.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lsass.exe cvtres.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lsass.exe	cvtres.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XGdES9N8RW = "C:\\Users\\Admin\\AppData\\Roaming\\dGNIWZiH\\seb2plM.exe.lnk"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Catelog.jpg.exe

description pid process target process

PID 5004 set thread context of 1184 5004 Catelog.jpg.exe cvtres.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Catelog.jpg.exe

pid process

5004 Catelog.jpg.exe
5004 Catelog.jpg.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Catelog.jpg.execvtres.exe

description pid process

Token: SeDebugPrivilege 5004 Catelog.jpg.exe
Token: SeDebugPrivilege 1184 cvtres.exe

description	pid	process	target process
PID 5004 set thread context of 1184	5004	Catelog.jpg.exe	cvtres.exe

pid	process
5004	Catelog.jpg.exe
5004	Catelog.jpg.exe

description	pid	process
Token: SeDebugPrivilege	5004	Catelog.jpg.exe
Token: SeDebugPrivilege	1184	cvtres.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Catelog.jpg.execmd.execvtres.exe

description	pid	process	target process
PID 5004 wrote to memory of 2676	5004	Catelog.jpg.exe	cmd.exe
PID 5004 wrote to memory of 2676	5004	Catelog.jpg.exe	cmd.exe
PID 5004 wrote to memory of 2676	5004	Catelog.jpg.exe	cmd.exe
PID 2676 wrote to memory of 3444	2676	cmd.exe	reg.exe
PID 2676 wrote to memory of 3444	2676	cmd.exe	reg.exe
PID 2676 wrote to memory of 3444	2676	cmd.exe	reg.exe
PID 5004 wrote to memory of 1184	5004	Catelog.jpg.exe	cvtres.exe
PID 5004 wrote to memory of 1184	5004	Catelog.jpg.exe	cvtres.exe
PID 5004 wrote to memory of 1184	5004	Catelog.jpg.exe	cvtres.exe
PID 5004 wrote to memory of 1184	5004	Catelog.jpg.exe	cvtres.exe
PID 5004 wrote to memory of 1184	5004	Catelog.jpg.exe	cvtres.exe
PID 5004 wrote to memory of 1184	5004	Catelog.jpg.exe	cvtres.exe
PID 1184 wrote to memory of 116	1184	cvtres.exe	lsass.exe
PID 1184 wrote to memory of 116	1184	cvtres.exe	lsass.exe
PID 1184 wrote to memory of 116	1184	cvtres.exe	lsass.exe

C:\Users\Admin\AppData\Local\Temp\Catelog.jpg.exe
"C:\Users\Admin\AppData\Local\Temp\Catelog.jpg.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "XGdES9N8RW" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\dGNIWZiH\seb2plM.exe.lnk"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "XGdES9N8RW" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\dGNIWZiH\seb2plM.exe.lnk"
    3⤵
    - Adds Run key to start application
    PID:3444
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe"
  2⤵
  - Drops startup file
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1184
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lsass.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lsass.exe"
    3⤵
    - Executes dropped EXE
    PID:116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lsass.exe

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lsass.exe

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
memory/116-139-0x0000000000000000-mapping.dmp

Download
memory/1184-136-0x0000000000000000-mapping.dmp

Download
memory/1184-137-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1184-141-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2676-134-0x0000000000000000-mapping.dmp

Download
memory/3444-135-0x0000000000000000-mapping.dmp

Download
memory/5004-132-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/5004-133-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download
memory/5004-138-0x0000000074B10000-0x00000000750C1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads