gcleaner | 4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388

General

Target

4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388.exe
Size

264KB
MD5

b1abe479d1ca92a4981505e51e69b04c
SHA1

91bca83f7a4bd95f4db33d512323553378523c03
SHA256

4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388
SHA512

0615b2ce6bc2a41eee68ef8503c503f1605d94f5922a62d62f062f735bd05b5b00eca90e53484eb3ec32493ac9a063d5202218c093ac900ddad757e6c7b9e833
SSDEEP

6144:RchiOMLvuWjb8vFTz6oEIsUaXjAiy+VvrDs:RchGLvFex5EI8p9

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

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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388.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
1640	3728	WerFault.exe	81
2472	3728	WerFault.exe	81
4244	3728	WerFault.exe	81
1824	3728	WerFault.exe	81
2188	3728	WerFault.exe	81
4164	3728	WerFault.exe	81
2784	3728	WerFault.exe	81
3540	3728	WerFault.exe	81
4484	3728	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
2832	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3728 wrote to memory of 700	3728	4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388.exe	108
PID 3728 wrote to memory of 700	3728	4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388.exe	108
PID 3728 wrote to memory of 700	3728	4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388.exe	108
PID 700 wrote to memory of 2832	700	cmd.exe	111
PID 700 wrote to memory of 2832	700	cmd.exe	111
PID 700 wrote to memory of 2832	700	cmd.exe	111

C:\Users\Admin\AppData\Local\Temp\4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388.exe
"C:\Users\Admin\AppData\Local\Temp\4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 740
  2⤵
  - Program crash
  PID:1640
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 760
  2⤵
  - Program crash
  PID:2472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 740
  2⤵
  - Program crash
  PID:4244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 760
  2⤵
  - Program crash
  PID:1824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 904
  2⤵
  - Program crash
  PID:2188
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 1004
  2⤵
  - Program crash
  PID:4164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 1120
  2⤵
  - Program crash
  PID:2784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 1384
  2⤵
  - Program crash
  PID:3540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:700
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "4d765080ac1b1abc993e6438cbb7353aabd7d9759866c04251297aaca4b45388.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 1424
  2⤵
  - Program crash
  PID:4484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3728 -ip 3728
1⤵
PID:1108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3728 -ip 3728
1⤵
PID:1912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3728 -ip 3728
1⤵
PID:468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3728 -ip 3728
1⤵
PID:5092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3728 -ip 3728
1⤵
PID:4360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3728 -ip 3728
1⤵
PID:1424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3728 -ip 3728
1⤵
PID:4380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3728 -ip 3728
1⤵
PID:1728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3728 -ip 3728
1⤵
PID:2920

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\GOWSKSPC\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3728-2-0x00000000008F0000-0x000000000091D000-memory.dmp

Filesize
180KB

Download
memory/3728-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3728-1-0x0000000000A20000-0x0000000000B20000-memory.dmp

Filesize
1024KB

Download
memory/3728-4-0x0000000000400000-0x0000000000798000-memory.dmp

Filesize
3.6MB

Download
memory/3728-6-0x0000000000A20000-0x0000000000B20000-memory.dmp

Filesize
1024KB

Download
memory/3728-12-0x0000000000400000-0x0000000000798000-memory.dmp

Filesize
3.6MB

Download
memory/3728-24-0x0000000000400000-0x0000000000798000-memory.dmp

Filesize
3.6MB

Download
memory/3728-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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