a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2022 22:57

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General

Target

a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895.exe
Size

92KB
MD5

744e56d37738616d7154b92147c693d3
SHA1

044209f30308843d7cc198fb678ff544d4b0e9d8
SHA256

a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895
SHA512

0d698b5cb69113d2a4206c2fd17a3c29dc196df9ca50a3a608915aa6d2758a7412e940db3906422259da8fdffedbe8c92df1bd86763df70a99568c6de5cc518a
SSDEEP

768:4mp1D5+8+yyCExggbX4xyhKpDq3y2qimSr4CsDqel30JbP6XTI3WoUUZ+IcnR7S:4CD5ePN4xye0C3tDj8r6XEJTc

Score

7^/10

Malware Config

Signatures

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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895.exe

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

System Information Discovery
T1082

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
604	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	604	tasklist.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
376	a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895.exe
376	a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 376 wrote to memory of 4364	376	a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895.exe	82
PID 376 wrote to memory of 4364	376	a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895.exe	82
PID 376 wrote to memory of 4364	376	a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895.exe	82
PID 4364 wrote to memory of 604	4364	cmd.exe	84
PID 4364 wrote to memory of 604	4364	cmd.exe	84
PID 4364 wrote to memory of 604	4364	cmd.exe	84

C:\Users\Admin\AppData\Local\Temp\a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895.exe
"C:\Users\Admin\AppData\Local\Temp\a90eeb3d8224df965bc40d04773937fed6618c4c6190349be9f220cb0701e895.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del a90eeb3d8224df965bc40d04773937fed6
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4364
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/604-136-0x0000000000000000-mapping.dmp

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memory/4364-135-0x0000000000000000-mapping.dmp

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