gcleaner | 13348c6ff4d140d0f1a196319b3393cbc8d4dc704dbc5ad919b9a09bc0c4a4b6

General

Target

9e9c55bfd3fffddf9d71b8f73d1b7a19.exe
Size

369KB
MD5

9e9c55bfd3fffddf9d71b8f73d1b7a19
SHA1

e61e9ca729abb852de46bd47e86b047a581476db
SHA256

13348c6ff4d140d0f1a196319b3393cbc8d4dc704dbc5ad919b9a09bc0c4a4b6
SHA512

c62952a7c372b961542e4348e1fa6c98305bad2db4699dc9e371d2043caf205c86eccfad0bf41984b3837e4e72e91670e8e15091849d574e3299c7028ec1cce0
SSDEEP

6144:/jZty/dizp4cFbA44iRFlDj36N8fCBVyTcYuitVShVGDPhxSz:ltsdizecFbVRFFmWfqVauiWHGDPbq

Score

10^/10

gcleaner onlylogger vidar loader stealer

Malware Config

Extracted

Family

gcleaner

C2

194.145.227.161

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

OnlyLogger payload 4 IoCs

resource	yara_rule
behavioral2/memory/964-2-0x0000000004120000-0x0000000004169000-memory.dmp	family_onlylogger
behavioral2/memory/964-3-0x0000000000400000-0x00000000023C7000-memory.dmp	family_onlylogger
behavioral2/memory/964-4-0x0000000000400000-0x00000000023C7000-memory.dmp	family_onlylogger
behavioral2/memory/964-5-0x0000000004120000-0x0000000004169000-memory.dmp	family_onlylogger

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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	9e9c55bfd3fffddf9d71b8f73d1b7a19.exe

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

System Information Discovery
T1082

Program crash 7 IoCs

pid	pid_target	Process	procid_target
3132	964	WerFault.exe	83
3424	964	WerFault.exe	83
392	964	WerFault.exe	83
3296	964	WerFault.exe	83
4756	964	WerFault.exe	83
4528	964	WerFault.exe	83
2052	964	WerFault.exe	83

Kills process with taskkill 1 IoCs

evasion

pid	Process
1020	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1020	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 964 wrote to memory of 3472	964	9e9c55bfd3fffddf9d71b8f73d1b7a19.exe	99
PID 964 wrote to memory of 3472	964	9e9c55bfd3fffddf9d71b8f73d1b7a19.exe	99
PID 964 wrote to memory of 3472	964	9e9c55bfd3fffddf9d71b8f73d1b7a19.exe	99
PID 3472 wrote to memory of 1020	3472	cmd.exe	103
PID 3472 wrote to memory of 1020	3472	cmd.exe	103
PID 3472 wrote to memory of 1020	3472	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\9e9c55bfd3fffddf9d71b8f73d1b7a19.exe
"C:\Users\Admin\AppData\Local\Temp\9e9c55bfd3fffddf9d71b8f73d1b7a19.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 724
  2⤵
  - Program crash
  PID:3132
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 784
  2⤵
  - Program crash
  PID:3424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 940
  2⤵
  - Program crash
  PID:392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 976
  2⤵
  - Program crash
  PID:3296
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 964
  2⤵
  - Program crash
  PID:4756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 972
  2⤵
  - Program crash
  PID:4528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "9e9c55bfd3fffddf9d71b8f73d1b7a19.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\9e9c55bfd3fffddf9d71b8f73d1b7a19.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3472
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "9e9c55bfd3fffddf9d71b8f73d1b7a19.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 744
  2⤵
  - Program crash
  PID:2052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 964 -ip 964
1⤵
PID:2060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 964 -ip 964
1⤵
PID:3336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 964 -ip 964
1⤵
PID:3140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 964 -ip 964
1⤵
PID:4368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 964 -ip 964
1⤵
PID:3632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 964 -ip 964
1⤵
PID:1176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 964 -ip 964
1⤵
PID:3500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/964-1-0x0000000002680000-0x0000000002780000-memory.dmp

Filesize
1024KB

Download
memory/964-2-0x0000000004120000-0x0000000004169000-memory.dmp

Filesize
292KB

Download
memory/964-3-0x0000000000400000-0x00000000023C7000-memory.dmp

Filesize
31.8MB

Download
memory/964-4-0x0000000000400000-0x00000000023C7000-memory.dmp

Filesize
31.8MB

Download
memory/964-5-0x0000000004120000-0x0000000004169000-memory.dmp

Filesize
292KB

Download

Analysis

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