gcleaner | 7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603

General

Target
7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603.exe
Size 222KB
Sample240711-k9thbazdpr
SHA256 7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603
MD5 a27886e34f7d319b7bb961b46dfcc3db
SHA1 68a811bfb14815b6484b4cd5e8a1b033b47cac72
SHA512 e8169f887441ec9fc9e9a01f0a42db2e2034b860f99dee78453e8b5a8b3c6391633b48931413f5e69dceb8db163a79c33aac9d71b102ab295a301e71addab9a1
SSDEEP 3072:bAxVLx9GOm3Fibp0ZKmumycf/c1xLHdjzT050PQ5wZTJ5IcDYT6AMnbxH44:SLxA7ibp0ZKmuMc1xBzT05Br4F
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90
185.172.128.69

Attributes

url_path
/advdlc.php

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 7 IoCs

pid	pid_target	Process	procid_target
536	3284	WerFault.exe	80
3176	3284	WerFault.exe	80
1668	3284	WerFault.exe	80
4384	3284	WerFault.exe	80
3440	3284	WerFault.exe	80
2336	3284	WerFault.exe	80
2568	3284	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
3020	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3020	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3284 wrote to memory of 3472	3284	7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603.exe	98
PID 3284 wrote to memory of 3472	3284	7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603.exe	98
PID 3284 wrote to memory of 3472	3284	7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603.exe	98
PID 3472 wrote to memory of 3020	3472	cmd.exe	100
PID 3472 wrote to memory of 3020	3472	cmd.exe	100
PID 3472 wrote to memory of 3020	3472	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603.exe
"C:\Users\Admin\AppData\Local\Temp\7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3284
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 784
  2⤵
  - Program crash
  PID:536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 792
  2⤵
  - Program crash
  PID:3176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 828
  2⤵
  - Program crash
  PID:1668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 836
  2⤵
  - Program crash
  PID:4384
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 952
  2⤵
  - Program crash
  PID:3440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 960
  2⤵
  - Program crash
  PID:2336
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3284 -s 1432
  2⤵
  - Program crash
  PID:2568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3472
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "7c97561df4b6fcd0043144dcaf463c03d454a90fa03326a143f4bc9f27f04603.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3284 -ip 3284
1⤵
PID:1580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 3284 -ip 3284
1⤵
PID:1520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 3284 -ip 3284
1⤵
PID:4168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3284 -ip 3284
1⤵
PID:1160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 3284 -ip 3284
1⤵
PID:1892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3284 -ip 3284
1⤵
PID:484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3284 -ip 3284
1⤵
PID:1828

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

Replay Monitor

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Downloads

advdlc[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\084KNCB9\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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memory/3284-2-0x0000000000790000-0x00000000007BD000-memory.dmp

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memory/3284-1-0x00000000007C0000-0x00000000008C0000-memory.dmp

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memory/3284-3-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/3284-8-0x0000000000400000-0x00000000004D2000-memory.dmp

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memory/3284-14-0x00000000007C0000-0x00000000008C0000-memory.dmp

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memory/3284-15-0x0000000000790000-0x00000000007BD000-memory.dmp

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memory/3284-16-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/3284-23-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/3284-22-0x0000000000400000-0x00000000004D2000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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