gcleaner | 6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986

General

Target

6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe
Size

391KB
MD5

1983a6724c37a6fc3b0cc4535b3ceade
SHA1

08a61f7ad144d0657b77e5e9f0bf0345614ab815
SHA256

6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986
SHA512

e83f854a073bb3da5cb616421392de2780e7d34cb2785352994291f3e8cb463c93add39f902298e12b8a94d7be9ce4c414298b4c5bd1eca6f21c2c424d2b5711
SSDEEP

3072:sPhKL0OBdtkoWf9u7WYZvIXOsqoOWUIPvBMTQLV8N42DAIjHHe5qO8j6aeOhrbTp:s0LxBdz5WYZr8RLVE42DAILHe5me6

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

185.172.128.69

Attributes

url_path
/advdlc.php

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 8 IoCs

Processes:

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

pid	pid_target	process	target process
1852	596	WerFault.exe	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe
2768	596	WerFault.exe	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe
212	596	WerFault.exe	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe
424	596	WerFault.exe	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe
4696	596	WerFault.exe	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe
2316	596	WerFault.exe	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe
780	596	WerFault.exe	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe
3124	596	WerFault.exe	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3740 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3740 taskkill.exe

pid	process
3740	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3740	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.execmd.exe

description	pid	process	target process
PID 596 wrote to memory of 4756	596	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe	cmd.exe
PID 596 wrote to memory of 4756	596	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe	cmd.exe
PID 596 wrote to memory of 4756	596	6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe	cmd.exe
PID 4756 wrote to memory of 3740	4756	cmd.exe	taskkill.exe
PID 4756 wrote to memory of 3740	4756	cmd.exe	taskkill.exe
PID 4756 wrote to memory of 3740	4756	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe
"C:\Users\Admin\AppData\Local\Temp\6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 596 -s 760
2⤵
- Program crash
PID:1852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 596 -s 772
2⤵
- Program crash
PID:2768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 596 -s 840
2⤵
- Program crash
PID:212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 596 -s 944
2⤵
- Program crash
PID:424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 596 -s 988
2⤵
- Program crash
PID:4696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 596 -s 1092
2⤵
- Program crash
PID:2316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 596 -s 1136
2⤵
- Program crash
PID:780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 596 -s 1160
2⤵
- Program crash
PID:3124

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4756

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "6c8f5e342b388b1cbfad05e6a25499034ad188e71f477bfe25643c936f077986.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3740

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\L5P12AEX\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/596-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/596-1-0x0000000001E60000-0x0000000001F60000-memory.dmp

Filesize
1024KB

Download
memory/596-2-0x0000000001E30000-0x0000000001E5D000-memory.dmp

Filesize
180KB

Download
memory/596-9-0x0000000000400000-0x0000000001BDD000-memory.dmp

Filesize
23.9MB

Download
memory/596-12-0x0000000001E30000-0x0000000001E5D000-memory.dmp

Filesize
180KB

Download
memory/596-15-0x0000000001E60000-0x0000000001F60000-memory.dmp

Filesize
1024KB

Download
memory/596-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/596-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/596-22-0x0000000000400000-0x0000000001BDD000-memory.dmp

Filesize
23.9MB

Download

Analysis

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