gcleaner | 78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293

General

Target

78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293.exe
Size

357KB
MD5

a07fb89e0682ebe5081b234c07c26bf2
SHA1

25bddc09e76a4df0a28df2caba22a5a87ca4f0ed
SHA256

78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293
SHA512

7e9964f5a6371dadc14d2aeca1d3ed2d19c2938eecf3f0f56fc009b95a70ed069ed12e3a9c546c758a12a36f360980b6d4b8b81c4eede0d05406bc121fd1557d
SSDEEP

3072:e90unpUrdGeRge6a858FrZdUhlMTtYFtHsOWcluJdOjCnXeyQvlN5O2+/xuU9:equpaGeRr6HCFNQqoHwcluzOmnu3Ot

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

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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293.exe

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

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
1568	5032	WerFault.exe	91
2428	5032	WerFault.exe	91
2808	5032	WerFault.exe	91
4952	5032	WerFault.exe	91
2024	5032	WerFault.exe	91
1780	5032	WerFault.exe	91
3256	5032	WerFault.exe	91
2820	5032	WerFault.exe	91
2228	5032	WerFault.exe	91

Kills process with taskkill 1 IoCs

evasion

pid	Process
384	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	384	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 4036	5032	78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293.exe	116
PID 5032 wrote to memory of 4036	5032	78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293.exe	116
PID 5032 wrote to memory of 4036	5032	78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293.exe	116
PID 4036 wrote to memory of 384	4036	cmd.exe	120
PID 4036 wrote to memory of 384	4036	cmd.exe	120
PID 4036 wrote to memory of 384	4036	cmd.exe	120

C:\Users\Admin\AppData\Local\Temp\78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293.exe
"C:\Users\Admin\AppData\Local\Temp\78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 448
  2⤵
  - Program crash
  PID:1568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 764
  2⤵
  - Program crash
  PID:2428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 772
  2⤵
  - Program crash
  PID:2808
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 772
  2⤵
  - Program crash
  PID:4952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 860
  2⤵
  - Program crash
  PID:2024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 928
  2⤵
  - Program crash
  PID:1780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 932
  2⤵
  - Program crash
  PID:3256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 1372
  2⤵
  - Program crash
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4036
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "78a63438d461feb4bc08815780426f4426776407c09aada3622033d1f6d3c293.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:384
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 492
  2⤵
  - Program crash
  PID:2228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 5032 -ip 5032
1⤵
PID:552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5032 -ip 5032
1⤵
PID:3616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 5032 -ip 5032
1⤵
PID:1444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 5032 -ip 5032
1⤵
PID:4764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 5032 -ip 5032
1⤵
PID:768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 5032 -ip 5032
1⤵
PID:3056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 5032 -ip 5032
1⤵
PID:4772

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4040,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4196 /prefetch:8
1⤵
PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5032 -ip 5032
1⤵
PID:4948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 5032 -ip 5032
1⤵
PID:4860

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

Loading Replay Monitor...

Downloads

memory/5032-2-0x0000000002110000-0x000000000214C000-memory.dmp

Filesize
240KB

Download
memory/5032-1-0x0000000002150000-0x0000000002250000-memory.dmp

Filesize
1024KB

Download
memory/5032-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/5032-7-0x0000000002110000-0x000000000214C000-memory.dmp

Filesize
240KB

Download
memory/5032-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/5032-6-0x0000000000400000-0x0000000001FA5000-memory.dmp

Filesize
27.6MB

Download

Analysis

Sharing