gcleaner | 2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002

General

Target

2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002.exe
Size

301KB
MD5

e426711f2baaaa5ac3c22e490361c391
SHA1

b1dbc44255a68a889bf3a28f3b7925127886871f
SHA256

2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002
SHA512

bb4506f8f67935315324333174b6fb945178376935947883ccd4668242fa7cd0e5058567c8df2ab460465ee88c54f0a0f3a833723cc5982f6db3a2f27878c7b8
SSDEEP

3072:EzKIOGJfB4wfLLvY+hdqPXWZsMieG82Pa4oMT76ckpiqewdX7C/d8Seo6pHAMyq/:AKqxnvYzusMrG7PehpH19Seo6pHAMyW

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.65.115

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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002.exe

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

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
3560	3796	WerFault.exe	86
2232	3796	WerFault.exe	86
4568	3796	WerFault.exe	86
5072	3796	WerFault.exe	86
4100	3796	WerFault.exe	86
4288	3796	WerFault.exe	86
2908	3796	WerFault.exe	86
4244	3796	WerFault.exe	86

Kills process with taskkill 1 IoCs

evasion

pid	Process
1856	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1856	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3796 wrote to memory of 4344	3796	2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002.exe	107
PID 3796 wrote to memory of 4344	3796	2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002.exe	107
PID 3796 wrote to memory of 4344	3796	2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002.exe	107
PID 4344 wrote to memory of 1856	4344	cmd.exe	111
PID 4344 wrote to memory of 1856	4344	cmd.exe	111
PID 4344 wrote to memory of 1856	4344	cmd.exe	111

C:\Users\Admin\AppData\Local\Temp\2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002.exe
"C:\Users\Admin\AppData\Local\Temp\2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3796
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 748
  2⤵
  - Program crash
  PID:3560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 788
  2⤵
  - Program crash
  PID:2232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 748
  2⤵
  - Program crash
  PID:4568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 812
  2⤵
  - Program crash
  PID:5072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 780
  2⤵
  - Program crash
  PID:4100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 980
  2⤵
  - Program crash
  PID:4288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 1340
  2⤵
  - Program crash
  PID:2908
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4344
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "2933a006093f683005d6a063b150494eb9d81cd4511739bd21bf20e7f2d80002.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 1364
  2⤵
  - Program crash
  PID:4244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3796 -ip 3796
1⤵
PID:4896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3796 -ip 3796
1⤵
PID:3296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3796 -ip 3796
1⤵
PID:3112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 3796 -ip 3796
1⤵
PID:3868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3796 -ip 3796
1⤵
PID:4788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3796 -ip 3796
1⤵
PID:4608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3796 -ip 3796
1⤵
PID:4976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3796 -ip 3796
1⤵
PID:3352

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/3796-1-0x0000000000CD0000-0x0000000000DD0000-memory.dmp

Filesize
1024KB

Download
memory/3796-2-0x0000000000CA0000-0x0000000000CCD000-memory.dmp

Filesize
180KB

Download
memory/3796-3-0x0000000000400000-0x0000000000AF4000-memory.dmp

Filesize
7.0MB

Download
memory/3796-5-0x0000000000400000-0x0000000000AF4000-memory.dmp

Filesize
7.0MB

Download
memory/3796-6-0x0000000000CA0000-0x0000000000CCD000-memory.dmp

Filesize
180KB

Download

Analysis

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