gcleaner | 0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f

General

Target

0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
Size

329KB
MD5

99911c754123f2c4929f5ddb0e55f2a3
SHA1

842bdf7740327c164e9830331fbf69cf6baf24db
SHA256

0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f
SHA512

b0f02119502200c1a4cf002a7bd079791ecba7ab9477d2d46652745b016b68b72e0edd12b466f5a81bb9dde536127027b6bbab39dfbecc6b3a6319e030f4c8f1
SSDEEP

3072:Qeu3nWfcVzRDmstury7gl9dljAsDJ3i7TPNXquS7mb/V/jIE/fQMU5bygS7fLuj:Qeu3WczRqstukgHdl8si5310y5rgqLM

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

System Information Discovery
T1082

Program crash 10 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
3080	3084	WerFault.exe	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
5104	3084	WerFault.exe	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
4052	3084	WerFault.exe	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
3360	3084	WerFault.exe	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
244	3084	WerFault.exe	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
1888	3084	WerFault.exe	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
4596	3084	WerFault.exe	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
388	3084	WerFault.exe	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
4436	3084	WerFault.exe	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
3152	3084	WerFault.exe	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4684 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4684 taskkill.exe

pid	process
4684	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4684	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.execmd.exe

description	pid	process	target process
PID 3084 wrote to memory of 3488	3084	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe	cmd.exe
PID 3084 wrote to memory of 3488	3084	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe	cmd.exe
PID 3084 wrote to memory of 3488	3084	0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe	cmd.exe
PID 3488 wrote to memory of 4684	3488	cmd.exe	taskkill.exe
PID 3488 wrote to memory of 4684	3488	cmd.exe	taskkill.exe
PID 3488 wrote to memory of 4684	3488	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe
"C:\Users\Admin\AppData\Local\Temp\0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 476
2⤵
- Program crash
PID:3080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 796
2⤵
- Program crash
PID:5104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 804
2⤵
- Program crash
PID:4052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 828
2⤵
- Program crash
PID:3360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 876
2⤵
- Program crash
PID:244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1000
2⤵
- Program crash
PID:1888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1084
2⤵
- Program crash
PID:4596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1128
2⤵
- Program crash
PID:388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1680
2⤵
- Program crash
PID:4436

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3488

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "0c9a8ad6ec1cb5876984dc405b9480863fcdbb740dc55acece145f8b71148d3f.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 532
2⤵
- Program crash
PID:3152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 3084 -ip 3084
1⤵
PID:5108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3084 -ip 3084
1⤵
PID:2984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3084 -ip 3084
1⤵
PID:3968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3084 -ip 3084
1⤵
PID:2404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3084 -ip 3084
1⤵
PID:896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3084 -ip 3084
1⤵
PID:3532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3084 -ip 3084
1⤵
PID:856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3084 -ip 3084
1⤵
PID:4160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3084 -ip 3084
1⤵
PID:1992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3084 -ip 3084
1⤵
PID:3768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\I6I473PF\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3084-1-0x00000000020E0000-0x00000000021E0000-memory.dmp

Filesize
1024KB

Download
memory/3084-2-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3084-3-0x0000000000400000-0x0000000001F9E000-memory.dmp

Filesize
27.6MB

Download
memory/3084-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3084-15-0x0000000000400000-0x0000000001F9E000-memory.dmp

Filesize
27.6MB

Download
memory/3084-19-0x00000000020E0000-0x00000000021E0000-memory.dmp

Filesize
1024KB

Download
memory/3084-22-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3084-34-0x0000000000400000-0x0000000001F9E000-memory.dmp

Filesize
27.6MB

Download
memory/3084-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing