gcleaner | 127ae2b14e167b8f18810f6cfaf90ba5c144e3559fffc036e0d3526e725ab841

General

Target
f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14.exe
Size 343KB
Sample240601-db7tqafd2t
SHA256 f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14
MD5 a129e6a919043d62a49c615b80be5f88
SHA1 c86a17efd90c3a7f792aa3934ed1e613d69fe901
SHA512 675fd5cba9b36e30839542e5d2b3d9aff0ef3c1392fd3aa684c96472d954994024f89b686fab844fabcd28c70463aded4ceeaa7377c831e28be447b2adaa0340
SSDEEP 6144:qdEgfcrheedn4pM3Rfs2gAtP7+TN3SPvTtaXndT:qdfcr0eFQv2gAtK8Pvun
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90
5.42.64.56
185.172.128.69

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file

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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14.exe

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

System Information Discovery
T1082

Program crash 11 IoCs

pid	pid_target	Process	procid_target
1444	1072	WerFault.exe	82
228	1072	WerFault.exe	82
1528	1072	WerFault.exe	82
3108	1072	WerFault.exe	82
2544	1072	WerFault.exe	82
2976	1072	WerFault.exe	82
4632	1072	WerFault.exe	82
2712	1072	WerFault.exe	82
832	1072	WerFault.exe	82
1588	1072	WerFault.exe	82
1116	1072	WerFault.exe	82

Kills process with taskkill 1 IoCs

evasion

pid	Process
992	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	992	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 4844	1072	f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14.exe	115
PID 1072 wrote to memory of 4844	1072	f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14.exe	115
PID 1072 wrote to memory of 4844	1072	f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14.exe	115
PID 4844 wrote to memory of 992	4844	cmd.exe	119
PID 4844 wrote to memory of 992	4844	cmd.exe	119
PID 4844 wrote to memory of 992	4844	cmd.exe	119

C:\Users\Admin\AppData\Local\Temp\f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14.exe
"C:\Users\Admin\AppData\Local\Temp\f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 448
  2⤵
  - Program crash
  PID:1444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 480
  2⤵
  - Program crash
  PID:228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 748
  2⤵
  - Program crash
  PID:1528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 768
  2⤵
  - Program crash
  PID:3108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 748
  2⤵
  - Program crash
  PID:2544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 780
  2⤵
  - Program crash
  PID:2976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 912
  2⤵
  - Program crash
  PID:4632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 988
  2⤵
  - Program crash
  PID:2712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 1076
  2⤵
  - Program crash
  PID:832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 1624
  2⤵
  - Program crash
  PID:1588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4844
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "f4146aecc21e1413da1fec7e17e20a6fb90adc191c82239b24f178251baddb14.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:992
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 1680
  2⤵
  - Program crash
  PID:1116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1072 -ip 1072
1⤵
PID:1512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1072 -ip 1072
1⤵
PID:4636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1072 -ip 1072
1⤵
PID:2560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1072 -ip 1072
1⤵
PID:64

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1072 -ip 1072
1⤵
PID:3764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1072 -ip 1072
1⤵
PID:1596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1072 -ip 1072
1⤵
PID:4004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1072 -ip 1072
1⤵
PID:4988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1072 -ip 1072
1⤵
PID:3024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1072 -ip 1072
1⤵
PID:3972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1072 -ip 1072
1⤵
PID:3968

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

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Downloads

advdlc[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZURVPW13\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

memory/1072-1-0x0000000002910000-0x0000000002A10000-memory.dmp

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memory/1072-2-0x00000000044F0000-0x000000000452C000-memory.dmp

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memory/1072-3-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/1072-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/1072-15-0x0000000000400000-0x00000000028E4000-memory.dmp

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memory/1072-19-0x0000000002910000-0x0000000002A10000-memory.dmp

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memory/1072-23-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/1072-34-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/1072-33-0x0000000000400000-0x00000000028E4000-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