gcleaner | 925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30

General

Target

925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30.exe
Size

330KB
MD5

a8e5c78ce2ba70689aefbbd93fd5963c
SHA1

ed00c384c8d50f04612a0fdbb27e39b0ad7ef739
SHA256

925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30
SHA512

db8a69130264ff2aa2b60b31303eb34f24032154ffd1d9c9a3f03bca8cde916e367c219c00aaf832b3f2f0717fff4a4dd01489d280befba076cb5fa767a00991
SSDEEP

3072:XZOXmv5EYBVtlBIN9STYyOcgK/IONhGQwnA5dcSIUwdDvTGk1Nsg57y8+Co4m:XZOXU5EwlSfS35hGqdRCvqk1N40r

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

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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
424	1836	WerFault.exe	81
4416	1836	WerFault.exe	81
2220	1836	WerFault.exe	81
5108	1836	WerFault.exe	81
3388	1836	WerFault.exe	81
4380	1836	WerFault.exe	81
4904	1836	WerFault.exe	81
1288	1836	WerFault.exe	81
4468	1836	WerFault.exe	81
4476	1836	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
2708	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 2332	1836	925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30.exe	113
PID 1836 wrote to memory of 2332	1836	925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30.exe	113
PID 1836 wrote to memory of 2332	1836	925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30.exe	113
PID 2332 wrote to memory of 2708	2332	cmd.exe	116
PID 2332 wrote to memory of 2708	2332	cmd.exe	116
PID 2332 wrote to memory of 2708	2332	cmd.exe	116

C:\Users\Admin\AppData\Local\Temp\925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30.exe
"C:\Users\Admin\AppData\Local\Temp\925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 448
  2⤵
  - Program crash
  PID:424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 764
  2⤵
  - Program crash
  PID:4416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 804
  2⤵
  - Program crash
  PID:2220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 824
  2⤵
  - Program crash
  PID:5108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 788
  2⤵
  - Program crash
  PID:3388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 928
  2⤵
  - Program crash
  PID:4380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 1004
  2⤵
  - Program crash
  PID:4904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 1072
  2⤵
  - Program crash
  PID:1288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 1768
  2⤵
  - Program crash
  PID:4468
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2332
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "925e23361f4b053bd6ebefb0ec2df276457f57d43f970ec7ec0b624acfb98a30.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 492
  2⤵
  - Program crash
  PID:4476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1836 -ip 1836
1⤵
PID:4328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1836 -ip 1836
1⤵
PID:2072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1836 -ip 1836
1⤵
PID:2024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1836 -ip 1836
1⤵
PID:2604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1836 -ip 1836
1⤵
PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1836 -ip 1836
1⤵
PID:3060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1836 -ip 1836
1⤵
PID:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1836 -ip 1836
1⤵
PID:1712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1836 -ip 1836
1⤵
PID:4328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1836 -ip 1836
1⤵
PID:4972

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6SQF6WJH\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1836-2-0x0000000002430000-0x000000000246C000-memory.dmp

Filesize
240KB

Download
memory/1836-1-0x0000000002230000-0x0000000002330000-memory.dmp

Filesize
1024KB

Download
memory/1836-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1836-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1836-15-0x0000000000400000-0x0000000001F9E000-memory.dmp

Filesize
27.6MB

Download
memory/1836-22-0x0000000002430000-0x000000000246C000-memory.dmp

Filesize
240KB

Download
memory/1836-21-0x0000000002230000-0x0000000002330000-memory.dmp

Filesize
1024KB

Download
memory/1836-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1836-36-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1836-34-0x0000000000400000-0x0000000001F9E000-memory.dmp

Filesize
27.6MB

Download

Analysis

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