f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377

Analysis

max time kernel
151s
max time network
173s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2022, 10:30

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General

Target

f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.exe
Size

3KB
MD5

21bc782982fddf996135f515d18bea30
SHA1

8ad0a3a951613da9d42df270ed4d9b22e7cf1c98
SHA256

f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377
SHA512

366fa40888209576dec9544eb60c194ed9b64d42273e8d9fbc3b178bf2e0ecb622c3bb683cd9fc18e3306424bcdc2afa0de2fff128962d006af0217ce615eeb7

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4424	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Windows\\lsass.exe"	f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\lsass.exe	f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.exe
File opened for modification	C:\Windows\lsass.exe	f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 4424	4772	f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.exe	81
PID 4772 wrote to memory of 4424	4772	f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.exe	81
PID 4772 wrote to memory of 4424	4772	f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.exe	81

C:\Users\Admin\AppData\Local\Temp\f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.exe
"C:\Users\Admin\AppData\Local\Temp\f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4772
- C:\Windows\lsass.exe
  "C:\Windows\lsass.exe"
  2⤵
  - Executes dropped EXE
  PID:4424

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\lsass.exe

Filesize
3KB

MD5
21bc782982fddf996135f515d18bea30

SHA1
8ad0a3a951613da9d42df270ed4d9b22e7cf1c98

SHA256
f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377

SHA512
366fa40888209576dec9544eb60c194ed9b64d42273e8d9fbc3b178bf2e0ecb622c3bb683cd9fc18e3306424bcdc2afa0de2fff128962d006af0217ce615eeb7

Download Submit
C:\Windows\lsass.exe

Filesize
3KB

MD5
21bc782982fddf996135f515d18bea30

SHA1
8ad0a3a951613da9d42df270ed4d9b22e7cf1c98

SHA256
f9db6a0329f6ecff4ba2070e1071adb43ed962a5b7d447dc1e1e7dae43e19377

SHA512
366fa40888209576dec9544eb60c194ed9b64d42273e8d9fbc3b178bf2e0ecb622c3bb683cd9fc18e3306424bcdc2afa0de2fff128962d006af0217ce615eeb7

Download Submit