gcleaner | 260b02ef8e2926b9957ca91ca3a2c1d30178a9cb096c5835ff57bcdf75028810

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-03-2024 15:24

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General

Target

bef3b5b031d54620d8ea232e0ceeefc8.exe
Size

363KB
MD5

bef3b5b031d54620d8ea232e0ceeefc8
SHA1

fa4b6282112c8c16bef3fed1bf1f25cf98c41a1e
SHA256

260b02ef8e2926b9957ca91ca3a2c1d30178a9cb096c5835ff57bcdf75028810
SHA512

61503da98efbe34311e4846bbdd1d6d04804659e0b49e28965feafa8757992e8640509aeb44c901069e922cd6ed18681b947f9ee498fc352f9f46e3fc65c407c
SSDEEP

6144:b9cyVvxgfOm/oeVNpIDrsNAdly51yPIM04Qe2YD2K6Q/IytSvn:aivW2m/bpIDrsWdU7cIMrQvQwytS

Score

10^/10

gcleaner onlylogger vidar loader stealer

Malware Config

Extracted

Family

gcleaner

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/2708-2-0x0000000003FE0000-0x0000000004029000-memory.dmp	family_onlylogger
behavioral2/memory/2708-3-0x0000000000400000-0x00000000023C4000-memory.dmp	family_onlylogger
behavioral2/memory/2708-4-0x0000000000400000-0x00000000023C4000-memory.dmp	family_onlylogger
behavioral2/memory/2708-5-0x0000000003FE0000-0x0000000004029000-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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	bef3b5b031d54620d8ea232e0ceeefc8.exe

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

System Information Discovery
T1082

Program crash 6 IoCs

pid	pid_target	Process	procid_target
1612	2708	WerFault.exe	87
4464	2708	WerFault.exe	87
4896	2708	WerFault.exe	87
5000	2708	WerFault.exe	87
4944	2708	WerFault.exe	87
2980	2708	WerFault.exe	87

Kills process with taskkill 1 IoCs

evasion

pid	Process
2512	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2512	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 1596	2708	bef3b5b031d54620d8ea232e0ceeefc8.exe	110
PID 2708 wrote to memory of 1596	2708	bef3b5b031d54620d8ea232e0ceeefc8.exe	110
PID 2708 wrote to memory of 1596	2708	bef3b5b031d54620d8ea232e0ceeefc8.exe	110
PID 1596 wrote to memory of 2512	1596	cmd.exe	113
PID 1596 wrote to memory of 2512	1596	cmd.exe	113
PID 1596 wrote to memory of 2512	1596	cmd.exe	113

C:\Users\Admin\AppData\Local\Temp\bef3b5b031d54620d8ea232e0ceeefc8.exe
"C:\Users\Admin\AppData\Local\Temp\bef3b5b031d54620d8ea232e0ceeefc8.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 736
  2⤵
  - Program crash
  PID:1612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 792
  2⤵
  - Program crash
  PID:4464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 944
  2⤵
  - Program crash
  PID:4896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 760
  2⤵
  - Program crash
  PID:5000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 972
  2⤵
  - Program crash
  PID:4944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 1000
  2⤵
  - Program crash
  PID:2980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "bef3b5b031d54620d8ea232e0ceeefc8.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\bef3b5b031d54620d8ea232e0ceeefc8.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1596
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "bef3b5b031d54620d8ea232e0ceeefc8.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2708 -ip 2708
1⤵
PID:3004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2708 -ip 2708
1⤵
PID:3420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2708 -ip 2708
1⤵
PID:816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2708 -ip 2708
1⤵
PID:2688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2708 -ip 2708
1⤵
PID:3108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 2708 -ip 2708
1⤵
PID:3084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

memory/2708-1-0x0000000002450000-0x0000000002550000-memory.dmp

Filesize
1024KB

Download
memory/2708-2-0x0000000003FE0000-0x0000000004029000-memory.dmp

Filesize
292KB

Download
memory/2708-3-0x0000000000400000-0x00000000023C4000-memory.dmp

Filesize
31.8MB

Download
memory/2708-4-0x0000000000400000-0x00000000023C4000-memory.dmp

Filesize
31.8MB

Download
memory/2708-5-0x0000000003FE0000-0x0000000004029000-memory.dmp

Filesize
292KB

Download