gcleaner | 892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6

General

Target

892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6.exe
Size

317KB
MD5

2872f0a2ad69d402bea8b00c214c1521
SHA1

069e5d291a6a644702564a1746f0408409b086af
SHA256

892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6
SHA512

5593cdd837290bf57d4c8d20ab209a7cb2400f99d322a9709f5e61db0d1cfb55deea47aaf4352d38b13580c2ba86dbd89806942db428179d5bce7bf957ac7c38
SSDEEP

6144:Gb5NBYXsH27h3ff4iTnPTFUMSEVRsuLC:GlNBalLJjPsuO

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.65.64

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

pid	pid_target	Process	procid_target
3816	4536	WerFault.exe	78
1780	4536	WerFault.exe	78
3088	4536	WerFault.exe	78
1272	4536	WerFault.exe	78
3952	4536	WerFault.exe	78
3960	4536	WerFault.exe	78
4540	4536	WerFault.exe	78
1060	4536	WerFault.exe	78

Kills process with taskkill 1 IoCs

evasion

pid	Process
4524	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4524	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 5048	4536	892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6.exe	96
PID 4536 wrote to memory of 5048	4536	892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6.exe	96
PID 4536 wrote to memory of 5048	4536	892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6.exe	96
PID 5048 wrote to memory of 4524	5048	cmd.exe	100
PID 5048 wrote to memory of 4524	5048	cmd.exe	100
PID 5048 wrote to memory of 4524	5048	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6.exe
"C:\Users\Admin\AppData\Local\Temp\892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 772
  2⤵
  - Program crash
  PID:3816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 812
  2⤵
  - Program crash
  PID:1780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 772
  2⤵
  - Program crash
  PID:3088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 864
  2⤵
  - Program crash
  PID:1272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 976
  2⤵
  - Program crash
  PID:3952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 984
  2⤵
  - Program crash
  PID:3960
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 1532
  2⤵
  - Program crash
  PID:4540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5048
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "892b71e58d4877dd51af4ec3252b8b421a0360cbdbc683f038708afa8e20ebe6.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4524
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 1440
  2⤵
  - Program crash
  PID:1060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4536 -ip 4536
1⤵
PID:4828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4536 -ip 4536
1⤵
PID:2172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4536 -ip 4536
1⤵
PID:3984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4536 -ip 4536
1⤵
PID:4752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4536 -ip 4536
1⤵
PID:3468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4536 -ip 4536
1⤵
PID:2108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4536 -ip 4536
1⤵
PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4536 -ip 4536
1⤵
PID:3708

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\GG59XP54\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4536-1-0x0000000002E00000-0x0000000002F00000-memory.dmp

Filesize
1024KB

Download
memory/4536-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4536-2-0x0000000002D70000-0x0000000002D9D000-memory.dmp

Filesize
180KB

Download
memory/4536-4-0x0000000000400000-0x0000000002B0C000-memory.dmp

Filesize
39.0MB

Download
memory/4536-7-0x0000000002E00000-0x0000000002F00000-memory.dmp

Filesize
1024KB

Download
memory/4536-11-0x0000000000400000-0x0000000002B0C000-memory.dmp

Filesize
39.0MB

Download
memory/4536-26-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4536-25-0x0000000000400000-0x0000000002B0C000-memory.dmp

Filesize
39.0MB

Download

Analysis

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