gcleaner | 3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e

General

Target

3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
Size

345KB
MD5

61ad1470c852aac3714b4db51593d4fe
SHA1

7d50a74dac41afae1a261c039bbe79bfdf60bc06
SHA256

3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e
SHA512

4cf644fed38493d9e8e65f2695e63b48102bb401aba6a8b3b2aa4709af3674bb1b6e904b5a0713b1d79ca2d59f687dc7fee724b62cc599d623edb8a38fb9f6af
SSDEEP

6144:VMBhyGiKxayIBSEEZQNb/oCxpZM/IIVFr4XxnnUe:WCGiKxEqZQhVg/5Fk

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
1516	488	WerFault.exe	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
4188	488	WerFault.exe	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
2244	488	WerFault.exe	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
2828	488	WerFault.exe	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
864	488	WerFault.exe	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
540	488	WerFault.exe	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
436	488	WerFault.exe	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
2980	488	WerFault.exe	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
1084	488	WerFault.exe	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
2212	488	WerFault.exe	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1608 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1608 taskkill.exe

pid	process
1608	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1608	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.execmd.exe

description	pid	process	target process
PID 488 wrote to memory of 1444	488	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe	cmd.exe
PID 488 wrote to memory of 1444	488	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe	cmd.exe
PID 488 wrote to memory of 1444	488	3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe	cmd.exe
PID 1444 wrote to memory of 1608	1444	cmd.exe	taskkill.exe
PID 1444 wrote to memory of 1608	1444	cmd.exe	taskkill.exe
PID 1444 wrote to memory of 1608	1444	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe
"C:\Users\Admin\AppData\Local\Temp\3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 476
2⤵
- Program crash
PID:1516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 796
2⤵
- Program crash
PID:4188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 804
2⤵
- Program crash
PID:2244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 852
2⤵
- Program crash
PID:2828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 888
2⤵
- Program crash
PID:864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 992
2⤵
- Program crash
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 1000
2⤵
- Program crash
PID:436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 1116
2⤵
- Program crash
PID:2980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 1776
2⤵
- Program crash
PID:1084

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1444

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "3d5b2744c55705b2b95c8ba1a0b43d15230ca9dc431ab435e12907529336185e.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 1800
2⤵
- Program crash
PID:2212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 488 -ip 488
1⤵
PID:1060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 488 -ip 488
1⤵
PID:4696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 488 -ip 488
1⤵
PID:4624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 488 -ip 488
1⤵
PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 488 -ip 488
1⤵
PID:1204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 488 -ip 488
1⤵
PID:4536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 488 -ip 488
1⤵
PID:2384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 488 -ip 488
1⤵
PID:4084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 488 -ip 488
1⤵
PID:2440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 488 -ip 488
1⤵
PID:2316

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TDBMZ2OO\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/488-1-0x0000000002110000-0x0000000002210000-memory.dmp

Filesize
1024KB

Download
memory/488-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/488-2-0x0000000003D20000-0x0000000003D5C000-memory.dmp

Filesize
240KB

Download
memory/488-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/488-15-0x0000000000400000-0x0000000001FA1000-memory.dmp

Filesize
27.6MB

Download
memory/488-18-0x0000000002110000-0x0000000002210000-memory.dmp

Filesize
1024KB

Download
memory/488-20-0x0000000003D20000-0x0000000003D5C000-memory.dmp

Filesize
240KB

Download
memory/488-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/488-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/488-34-0x0000000000400000-0x0000000001FA1000-memory.dmp

Filesize
27.6MB

Download

Analysis

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