gcleaner | a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325

General

Target
a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325.exe
Size 384KB
Sample240529-j5eb6aha28
SHA256 a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325
MD5 762f6eca554ec185c5a3254afc23b7d4
SHA1 875891760c22158ffe33461cac26abd2b25247d3
SHA512 acf058b236a1607deb58140005733c4571816b4e626495ba491e2a319c04c7104e161ad9528b5ade910bc75884f3b1718398b5e953adf22bfed7793c1cb596ad
SSDEEP 6144:v2ntHWuuQGqY+ghhUeJAL6mTvyHLoqRRh:OnUuyq9gYeCmF
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 9 IoCs

pid	pid_target	Process	procid_target
4884	3188	WerFault.exe	76
4740	3188	WerFault.exe	76
2440	3188	WerFault.exe	76
2044	3188	WerFault.exe	76
4468	3188	WerFault.exe	76
1164	3188	WerFault.exe	76
3452	3188	WerFault.exe	76
568	3188	WerFault.exe	76
3872	3188	WerFault.exe	76

Kills process with taskkill 1 IoCs

evasion

pid	Process
4548	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4548	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3188 wrote to memory of 1204	3188	a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325.exe	94
PID 3188 wrote to memory of 1204	3188	a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325.exe	94
PID 3188 wrote to memory of 1204	3188	a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325.exe	94
PID 1204 wrote to memory of 4548	1204	cmd.exe	98
PID 1204 wrote to memory of 4548	1204	cmd.exe	98
PID 1204 wrote to memory of 4548	1204	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325.exe
"C:\Users\Admin\AppData\Local\Temp\a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3188
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 464
  2⤵
  - Program crash
  PID:4884
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 796
  2⤵
  - Program crash
  PID:4740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 816
  2⤵
  - Program crash
  PID:2440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 816
  2⤵
  - Program crash
  PID:2044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 868
  2⤵
  - Program crash
  PID:4468
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 1000
  2⤵
  - Program crash
  PID:1164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 1084
  2⤵
  - Program crash
  PID:3452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 1220
  2⤵
  - Program crash
  PID:568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1204
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "a416b036ea9e0b50933fc1a66a861f52ba7ec92b76310d748b7a89f45eaa8325.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 1696
  2⤵
  - Program crash
  PID:3872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3188 -ip 3188
1⤵
PID:3272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3188 -ip 3188
1⤵
PID:2148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3188 -ip 3188
1⤵
PID:3824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3188 -ip 3188
1⤵
PID:1844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3188 -ip 3188
1⤵
PID:1972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 3188 -ip 3188
1⤵
PID:1944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 304 -p 3188 -ip 3188
1⤵
PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3188 -ip 3188
1⤵
PID:2224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3188 -ip 3188
1⤵
PID:1388

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\D1O30EO5\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

memory/3188-1-0x0000000002170000-0x0000000002270000-memory.dmp

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memory/3188-3-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/3188-2-0x0000000003CE0000-0x0000000003D1C000-memory.dmp

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memory/3188-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/3188-12-0x0000000000400000-0x0000000001FAD000-memory.dmp

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memory/3188-17-0x0000000003CE0000-0x0000000003D1C000-memory.dmp

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memory/3188-20-0x0000000002170000-0x0000000002270000-memory.dmp

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memory/3188-22-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/3188-36-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/3188-35-0x0000000000400000-0x0000000001FAD000-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