gcleaner | f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f

General

Target
f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f.exe
Size 398KB
Sample240604-k5gmyscc52
SHA256 f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f
MD5 1cbf6a676d332e40dd0138da7e93fb57
SHA1 ac8d2e24d31bc6a2762ae9fd0e4b8d68241c4d45
SHA512 03908db96ed8afb919c74448ddc79e067358410b8f93c0d1c5d42e63b155a842914e483784424c89e25fedf29636a1183283f1d9de08ab3622179054cf03486d
SSDEEP 6144:O56LZeoKBh0QhFirHiO83sDUPMDHttUEm1zGsXL:y6Y/Bi7rHiB3enDfUt1SK
MD5 SHA1 SHA512 SSDEEP

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

pid	pid_target	Process	procid_target
2004	4372	WerFault.exe	75
2008	4372	WerFault.exe	75
2292	4372	WerFault.exe	75
4240	4372	WerFault.exe	75
1648	4372	WerFault.exe	75
3764	4372	WerFault.exe	75
1752	4372	WerFault.exe	75
4844	4372	WerFault.exe	75
1888	4372	WerFault.exe	75
3268	4372	WerFault.exe	75

Kills process with taskkill 1 IoCs

evasion

pid	Process
2104	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2104	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4372 wrote to memory of 4320	4372	f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f.exe	95
PID 4372 wrote to memory of 4320	4372	f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f.exe	95
PID 4372 wrote to memory of 4320	4372	f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f.exe	95
PID 4320 wrote to memory of 2104	4320	cmd.exe	99
PID 4320 wrote to memory of 2104	4320	cmd.exe	99
PID 4320 wrote to memory of 2104	4320	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f.exe
"C:\Users\Admin\AppData\Local\Temp\f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 480
  2⤵
  - Program crash
  PID:2004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 800
  2⤵
  - Program crash
  PID:2008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 820
  2⤵
  - Program crash
  PID:2292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 852
  2⤵
  - Program crash
  PID:4240
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 840
  2⤵
  - Program crash
  PID:1648
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 1004
  2⤵
  - Program crash
  PID:3764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 1084
  2⤵
  - Program crash
  PID:1752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 1384
  2⤵
  - Program crash
  PID:4844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 1656
  2⤵
  - Program crash
  PID:1888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4320
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "f331593af26e8cbe3ac66ed184d7b499c7520033232c8464c8ff16fdeb66fb8f.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 492
  2⤵
  - Program crash
  PID:3268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4372 -ip 4372
1⤵
PID:4140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4372 -ip 4372
1⤵
PID:3448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4372 -ip 4372
1⤵
PID:3552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4372 -ip 4372
1⤵
PID:3528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4372 -ip 4372
1⤵
PID:3092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4372 -ip 4372
1⤵
PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4372 -ip 4372
1⤵
PID:4204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4372 -ip 4372
1⤵
PID:3068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4372 -ip 4372
1⤵
PID:2308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4372 -ip 4372
1⤵
PID:400

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

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Downloads

advdlc[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\H4P8YSYM\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

memory/4372-1-0x0000000001DE0000-0x0000000001EE0000-memory.dmp

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memory/4372-2-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/4372-3-0x0000000000400000-0x0000000001BDF000-memory.dmp

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memory/4372-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/4372-15-0x0000000000400000-0x0000000001BDF000-memory.dmp

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memory/4372-20-0x0000000001DE0000-0x0000000001EE0000-memory.dmp

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memory/4372-23-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/4372-34-0x0000000000400000-0x0000000001BDF000-memory.dmp

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memory/4372-35-0x0000000000400000-0x0000000000440000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads