gcleaner | b1332797f82f206c8cc7e0061f3d5a35df31bd5f920f5acda288c6869eab2603

Analysis

max time kernel
102s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/12/2023, 17:59

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General

Target
ff0cb531a602c4cef22ecc18a6cf16f0.exe
Size 453KB
Sample231220-wktbssdbbj
SHA256 b1332797f82f206c8cc7e0061f3d5a35df31bd5f920f5acda288c6869eab2603
MD5 ff0cb531a602c4cef22ecc18a6cf16f0
SHA1 254942caf75abccf05ddacc9e9a35e6cfded7571
SHA512 6acabd528348f68f7dae10c53cf6e1bc4b87ad58d4ae2e5897de430eb0b6a31e95f7d6fff5193cebe3f96ad14a434b266840aef29c00a9d4dae5950f70519965
SSDEEP 12288:FqjbDxJKnJ/mIYbw+wl90AOMcqPq+9NbYp:FSXbK5mI2w+20AO2qv
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner onlylogger loader

Malware Config

Extracted

Family

gcleaner

ggg-cl.biz
45.9.20.13

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

OnlyLogger payload 4 IoCs

resource	yara_rule
behavioral2/memory/3452-2-0x0000000003490000-0x00000000034D8000-memory.dmp	family_onlylogger
behavioral2/memory/3452-3-0x0000000000400000-0x00000000016E6000-memory.dmp	family_onlylogger
behavioral2/memory/3452-4-0x0000000000400000-0x00000000016E6000-memory.dmp	family_onlylogger
behavioral2/memory/3452-5-0x0000000003490000-0x00000000034D8000-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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	ff0cb531a602c4cef22ecc18a6cf16f0.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
5644	3452	WerFault.exe	75
4972	3452	WerFault.exe	75
2376	3452	WerFault.exe	75
3572	3452	WerFault.exe	75
2340	3452	WerFault.exe	75
4996	3452	WerFault.exe	75
5092	3452	WerFault.exe	75

Kills process with taskkill 1 IoCs

evasion

pid	Process
1592	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1592	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 4136	3452	ff0cb531a602c4cef22ecc18a6cf16f0.exe	104
PID 3452 wrote to memory of 4136	3452	ff0cb531a602c4cef22ecc18a6cf16f0.exe	104
PID 3452 wrote to memory of 4136	3452	ff0cb531a602c4cef22ecc18a6cf16f0.exe	104
PID 4136 wrote to memory of 1592	4136	cmd.exe	108
PID 4136 wrote to memory of 1592	4136	cmd.exe	108
PID 4136 wrote to memory of 1592	4136	cmd.exe	108

C:\Users\Admin\AppData\Local\Temp\ff0cb531a602c4cef22ecc18a6cf16f0.exe
"C:\Users\Admin\AppData\Local\Temp\ff0cb531a602c4cef22ecc18a6cf16f0.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 684
  2⤵
  - Program crash
  PID:5644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 784
  2⤵
  - Program crash
  PID:4972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 952
  2⤵
  - Program crash
  PID:2376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 960
  2⤵
  - Program crash
  PID:3572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 936
  2⤵
  - Program crash
  PID:2340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 968
  2⤵
  - Program crash
  PID:4996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "ff0cb531a602c4cef22ecc18a6cf16f0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ff0cb531a602c4cef22ecc18a6cf16f0.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4136
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "ff0cb531a602c4cef22ecc18a6cf16f0.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 748
  2⤵
  - Program crash
  PID:5092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3452 -ip 3452
1⤵
PID:5628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3452 -ip 3452
1⤵
PID:5368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3452 -ip 3452
1⤵
PID:5504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3452 -ip 3452
1⤵
PID:4612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3452 -ip 3452
1⤵
PID:2396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3452 -ip 3452
1⤵
PID:2632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 3452 -ip 3452
1⤵
PID:4276

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

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Downloads

memory/3452-2-0x0000000003490000-0x00000000034D8000-memory.dmp

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memory/3452-1-0x00000000019F0000-0x0000000001AF0000-memory.dmp

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memory/3452-3-0x0000000000400000-0x00000000016E6000-memory.dmp

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memory/3452-4-0x0000000000400000-0x00000000016E6000-memory.dmp

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memory/3452-5-0x0000000003490000-0x00000000034D8000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads