ea4eb55ebf7e14785d300fbb24be2bdea633c4b78b69fe5fccf77a16cab5cccd

Analysis

max time kernel
77s
max time network
47s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01/10/2022, 22:36

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General

Target
Catelog.jpg.exe
Size 123KB
Sample221001-2jfl7sbegn
SHA256 d954de23f8e04cff445b91436fdaf60b05c18e115c3dda8afce8460d72fb1fa7
MD5 458a2379358ae7cdd5a47059277338ca
SHA1 c3753cfa681d226b772a3ab6bc462a5c29791fa0
SHA512 fe182750f864b963f5ca970013bf5003dd108c7e7d69c981d9b8779b8276727b464fd5a1978dffd68e9e52e809bf7ce23206114d58f6aba3d87d4e8b5d768705
SSDEEP 3072:wJQ8sYDCBvQTYMGWdQUkv2Gc1eGktXENiTRWnTuX8Wr:yERqTfGDHv+DvoTROTu
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1172	lsass.exe

Drops startup file 1 IoCs

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

Loads dropped DLL 2 IoCs

pid	Process
288	Catelog.jpg.exe
928	cvtres.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\XGdES9N8RW = "C:\\Users\\Admin\\AppData\\Roaming\\dGNIWZiH\\seb2plM.exe.lnk"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 288 set thread context of 928	288	Catelog.jpg.exe	30

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 1 IoCs

pid	Process
288	Catelog.jpg.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	288	Catelog.jpg.exe
Token: SeDebugPrivilege	928	cvtres.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 288 wrote to memory of 1244	288	Catelog.jpg.exe	27
PID 288 wrote to memory of 1244	288	Catelog.jpg.exe	27
PID 288 wrote to memory of 1244	288	Catelog.jpg.exe	27
PID 288 wrote to memory of 1244	288	Catelog.jpg.exe	27
PID 1244 wrote to memory of 2020	1244	cmd.exe	29
PID 1244 wrote to memory of 2020	1244	cmd.exe	29
PID 1244 wrote to memory of 2020	1244	cmd.exe	29
PID 1244 wrote to memory of 2020	1244	cmd.exe	29
PID 288 wrote to memory of 928	288	Catelog.jpg.exe	30
PID 288 wrote to memory of 928	288	Catelog.jpg.exe	30
PID 288 wrote to memory of 928	288	Catelog.jpg.exe	30
PID 288 wrote to memory of 928	288	Catelog.jpg.exe	30
PID 288 wrote to memory of 928	288	Catelog.jpg.exe	30
PID 288 wrote to memory of 928	288	Catelog.jpg.exe	30
PID 288 wrote to memory of 928	288	Catelog.jpg.exe	30
PID 928 wrote to memory of 1172	928	cvtres.exe	31
PID 928 wrote to memory of 1172	928	cvtres.exe	31
PID 928 wrote to memory of 1172	928	cvtres.exe	31
PID 928 wrote to memory of 1172	928	cvtres.exe	31

C:\Users\Admin\AppData\Local\Temp\Catelog.jpg.exe
"C:\Users\Admin\AppData\Local\Temp\Catelog.jpg.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:288
- 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:1244
- - 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:2020
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe"
  2⤵
  - Drops startup file
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:928
- - 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:1172

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

lsass.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lsass.exe
Size 31KB
SHA256 b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
MD5 ed797d8dc2c92401985d162e42ffa450
SHA1 0f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA512 e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
SSDEEP 768:Qafgbp49YK+2Cza0pS6icHmMl9CvwOElkn3KKdnWWMi2jpv0N:wd4+KTMVJHmMsEBKdnWh950N
MD5 SHA1 SHA512 SSDEEP

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lsass.exe

Path \Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lsass.exe
Size 31KB
SHA256 b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
MD5 ed797d8dc2c92401985d162e42ffa450
SHA1 0f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA512 e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
SSDEEP 768:Qafgbp49YK+2Cza0pS6icHmMl9CvwOElkn3KKdnWWMi2jpv0N:wd4+KTMVJHmMsEBKdnWh950N
MD5 SHA1 SHA512 SSDEEP

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seb2plM.exe

Path \Users\Admin\AppData\Roaming\dGNIWZiH\seb2plM.exe
Size 123KB
SHA256 d954de23f8e04cff445b91436fdaf60b05c18e115c3dda8afce8460d72fb1fa7
MD5 458a2379358ae7cdd5a47059277338ca
SHA1 c3753cfa681d226b772a3ab6bc462a5c29791fa0
SHA512 fe182750f864b963f5ca970013bf5003dd108c7e7d69c981d9b8779b8276727b464fd5a1978dffd68e9e52e809bf7ce23206114d58f6aba3d87d4e8b5d768705
SSDEEP 3072:wJQ8sYDCBvQTYMGWdQUkv2Gc1eGktXENiTRWnTuX8Wr:yERqTfGDHv+DvoTROTu
MD5 SHA1 SHA512 SSDEEP

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memory/288-68-0x00000000741C0000-0x000000007476B000-memory.dmp

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memory/288-56-0x00000000741C0000-0x000000007476B000-memory.dmp

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memory/288-57-0x0000000001F36000-0x0000000001F47000-memory.dmp

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memory/288-55-0x00000000741C0000-0x000000007476B000-memory.dmp

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memory/288-54-0x0000000075771000-0x0000000075773000-memory.dmp

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memory/288-58-0x0000000001F36000-0x0000000001F47000-memory.dmp

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memory/288-69-0x0000000001F36000-0x0000000001F47000-memory.dmp

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memory/928-72-0x0000000000400000-0x0000000000419000-memory.dmp

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memory/928-62-0x0000000000400000-0x0000000000419000-memory.dmp

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memory/928-63-0x0000000000400000-0x0000000000419000-memory.dmp

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memory/928-65-0x0000000000400000-0x0000000000419000-memory.dmp

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