gcleaner | c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036

General

Target

c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036.exe
Size

307KB
MD5

caec19abcfe526915b3eb527103ff67e
SHA1

0f32413e81bc0630ad5d3b36e32ae46ae28af51f
SHA256

c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036
SHA512

2c621600468925709fa91d6f5c842320ba38cc67cce5e05efe5e84ea4c544e5205e9198b17f4c4bccfa5204b14c990384424fe66bf1111c841473c9c1fd33b9b
SSDEEP

3072:medOQfrIFSkI1K3X8OWdSEKeGKoLupL5wW1mhkl0MveGyWbjb5HGZuoGZu0h:mGaCQ8OW5KexoSpL511mLsplnwu7u0h

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
4484	4340	WerFault.exe	76
4868	4340	WerFault.exe	76
1532	4340	WerFault.exe	76
5056	4340	WerFault.exe	76
3064	4340	WerFault.exe	76
4680	4340	WerFault.exe	76
3104	4340	WerFault.exe	76
3156	4340	WerFault.exe	76
3108	4340	WerFault.exe	76
2080	4340	WerFault.exe	76

Kills process with taskkill 1 IoCs

evasion

pid	Process
2452	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2452	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4340 wrote to memory of 1068	4340	c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036.exe	96
PID 4340 wrote to memory of 1068	4340	c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036.exe	96
PID 4340 wrote to memory of 1068	4340	c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036.exe	96
PID 1068 wrote to memory of 2452	1068	cmd.exe	99
PID 1068 wrote to memory of 2452	1068	cmd.exe	99
PID 1068 wrote to memory of 2452	1068	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036.exe
"C:\Users\Admin\AppData\Local\Temp\c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 480
  2⤵
  - Program crash
  PID:4484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 800
  2⤵
  - Program crash
  PID:4868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 800
  2⤵
  - Program crash
  PID:1532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 832
  2⤵
  - Program crash
  PID:5056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 892
  2⤵
  - Program crash
  PID:3064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 1000
  2⤵
  - Program crash
  PID:4680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 1084
  2⤵
  - Program crash
  PID:3104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 1252
  2⤵
  - Program crash
  PID:3156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 1672
  2⤵
  - Program crash
  PID:3108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1068
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "c87572a612864b9ed32ce89f148639fee19d4673c6a25714c0a33ac18854b036.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 1624
  2⤵
  - Program crash
  PID:2080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4340 -ip 4340
1⤵
PID:760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4340 -ip 4340
1⤵
PID:4780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4340 -ip 4340
1⤵
PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4340 -ip 4340
1⤵
PID:2692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4340 -ip 4340
1⤵
PID:244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4340 -ip 4340
1⤵
PID:2044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4340 -ip 4340
1⤵
PID:668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4340 -ip 4340
1⤵
PID:4572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4340 -ip 4340
1⤵
PID:2768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4340 -ip 4340
1⤵
PID:4628

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VZQAW3IB\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4340-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4340-2-0x0000000003910000-0x000000000394C000-memory.dmp

Filesize
240KB

Download
memory/4340-1-0x0000000001E30000-0x0000000001F30000-memory.dmp

Filesize
1024KB

Download
memory/4340-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4340-15-0x0000000000400000-0x0000000001BC7000-memory.dmp

Filesize
23.8MB

Download
memory/4340-19-0x0000000001E30000-0x0000000001F30000-memory.dmp

Filesize
1024KB

Download
memory/4340-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4340-34-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4340-33-0x0000000000400000-0x0000000001BC7000-memory.dmp

Filesize
23.8MB

Download

Analysis

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