gcleaner | 194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa

General

Target
194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
Size 345KB
Sample240527-3mrdjsec61
SHA256 194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa
MD5 ec8d9521789d53fae1fae2ff88c62ab9
SHA1 6ce8f5bba9cf0582d34e2ccc7799e61dfcd07adc
SHA512 6ce27af0530a9bb2a8e904d2606411341d3c8350d77c6def5f8a7f3e5b87ae9d51f26cf0d5da42e359778934c06a252e897605f0b3f1d787afbf4c6c3cbc94e4
SSDEEP 3072:pOLHAZA3WPt3MmjO36DRJu46JVxsu+cRDj9RbEvBhj9370taV7du45evwu/e:pO0Amtcmj+vBb+c1BV+B19370tcooUe
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
3112	4532	WerFault.exe	75
1800	4532	WerFault.exe	75
4116	4532	WerFault.exe	75
3416	4532	WerFault.exe	75
4236	4532	WerFault.exe	75
1780	4532	WerFault.exe	75
3552	4532	WerFault.exe	75
2880	4532	WerFault.exe	75
3740	4532	WerFault.exe	75
3256	4532	WerFault.exe	75

Kills process with taskkill 1 IoCs

evasion

pid	Process
2392	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2392	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 1164	4532	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe	95
PID 4532 wrote to memory of 1164	4532	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe	95
PID 4532 wrote to memory of 1164	4532	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe	95
PID 1164 wrote to memory of 2392	1164	cmd.exe	98
PID 1164 wrote to memory of 2392	1164	cmd.exe	98
PID 1164 wrote to memory of 2392	1164	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
"C:\Users\Admin\AppData\Local\Temp\194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 472
  2⤵
  - Program crash
  PID:3112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 796
  2⤵
  - Program crash
  PID:1800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 836
  2⤵
  - Program crash
  PID:4116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 856
  2⤵
  - Program crash
  PID:3416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 820
  2⤵
  - Program crash
  PID:4236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1000
  2⤵
  - Program crash
  PID:1780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1004
  2⤵
  - Program crash
  PID:3552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1364
  2⤵
  - Program crash
  PID:2880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1676
  2⤵
  - Program crash
  PID:3740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1164
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 508
  2⤵
  - Program crash
  PID:3256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4532 -ip 4532
1⤵
PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4532 -ip 4532
1⤵
PID:4660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4532 -ip 4532
1⤵
PID:2068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4532 -ip 4532
1⤵
PID:3840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4532 -ip 4532
1⤵
PID:4516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4532 -ip 4532
1⤵
PID:4328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4532 -ip 4532
1⤵
PID:2684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4532 -ip 4532
1⤵
PID:2900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4532 -ip 4532
1⤵
PID:1804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4532 -ip 4532
1⤵
PID:4796

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/4532-3-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/4532-2-0x0000000003CD0000-0x0000000003D0C000-memory.dmp

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memory/4532-1-0x0000000002080000-0x0000000002180000-memory.dmp

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memory/4532-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/4532-15-0x0000000000400000-0x0000000001FA2000-memory.dmp

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memory/4532-19-0x0000000003CD0000-0x0000000003D0C000-memory.dmp

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memory/4532-22-0x0000000002080000-0x0000000002180000-memory.dmp

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memory/4532-24-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/4532-35-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/4532-34-0x0000000000400000-0x0000000001FA2000-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