gcleaner | 8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a

General

Target

8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a.exe
Size

254KB
MD5

805fdf5ea872c5687293d5510ba67ef9
SHA1

9fc1bf864515f6b01cdaca33ebb13b441c0c86e4
SHA256

8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a
SHA512

a45a3cd043ab92e2ec7333ca022cb7a606528bef64b5d0a0bec4506e4c3f87d7f77d9e7cd1b5ae7163c3e450b0ed445b9d3a282edab24d75dd85d419563279da
SSDEEP

3072:3nLUmnV6UD+omre1TRvYiboazyouIIKj6Fek6/eWlasV3zwzZU5OFMQh1G6AMnbJ:XLnnV6Iare1TRvf03ZIIm7z/HlGFVdF

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

77.105.160.30

185.172.128.69

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

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-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation	8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
1708	928	WerFault.exe	82
4420	928	WerFault.exe	82
4952	928	WerFault.exe	82
4888	928	WerFault.exe	82
1720	928	WerFault.exe	82
2324	928	WerFault.exe	82
2468	928	WerFault.exe	82
2392	928	WerFault.exe	82
516	928	WerFault.exe	82
4536	928	WerFault.exe	82

Kills process with taskkill 1 IoCs

evasion

pid	Process
3116	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3116	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 928 wrote to memory of 3236	928	8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a.exe	105
PID 928 wrote to memory of 3236	928	8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a.exe	105
PID 928 wrote to memory of 3236	928	8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a.exe	105
PID 3236 wrote to memory of 3116	3236	cmd.exe	109
PID 3236 wrote to memory of 3116	3236	cmd.exe	109
PID 3236 wrote to memory of 3116	3236	cmd.exe	109

C:\Users\Admin\AppData\Local\Temp\8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a.exe
"C:\Users\Admin\AppData\Local\Temp\8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:928
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 440
  2⤵
  - Program crash
  PID:1708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 764
  2⤵
  - Program crash
  PID:4420
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 784
  2⤵
  - Program crash
  PID:4952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 764
  2⤵
  - Program crash
  PID:4888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 856
  2⤵
  - Program crash
  PID:1720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 928
  2⤵
  - Program crash
  PID:2324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 1004
  2⤵
  - Program crash
  PID:2468
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 1108
  2⤵
  - Program crash
  PID:2392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 1356
  2⤵
  - Program crash
  PID:516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3236
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "8e9c16a18333e681b3bd87f838d906feb185b8d764dc9db4299421573cb9869a.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 1368
  2⤵
  - Program crash
  PID:4536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 928 -ip 928
1⤵
PID:3740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 928 -ip 928
1⤵
PID:1224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 928 -ip 928
1⤵
PID:1132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 928 -ip 928
1⤵
PID:4936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 928 -ip 928
1⤵
PID:1032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 928 -ip 928
1⤵
PID:4968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 928 -ip 928
1⤵
PID:1356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 928 -ip 928
1⤵
PID:2732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 928 -ip 928
1⤵
PID:4672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 928 -ip 928
1⤵
PID:4792

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/928-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/928-2-0x0000000002240000-0x000000000227C000-memory.dmp

Filesize
240KB

Download
memory/928-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/928-5-0x0000000000400000-0x00000000004DA000-memory.dmp

Filesize
872KB

Download
memory/928-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/928-6-0x0000000002240000-0x000000000227C000-memory.dmp

Filesize
240KB

Download

Analysis

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