gcleaner | 732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79

General

Target

732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
Size

400KB
MD5

b21ae81100683d3df3810d95fda18492
SHA1

e257a975d90fb53fe101c48e8afea110df7e2acf
SHA256

732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79
SHA512

894c56715d124de5dba9470a2ce8ae0a8fef7930f9dfcf7903e0c2f2a4fb9f63bc6e0976a179b1d8176de754366ddce1efeb2ef9833f077cfeda16c91865034e
SSDEEP

6144:xGLPBqwJ5TpzTT6LSfcm6a89Fi8OSndl3eLpeIe+Kpgfb:47BqW5TpzaLS09OSdY3H

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

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
1168	3868	WerFault.exe	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
1056	3868	WerFault.exe	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
3564	3868	WerFault.exe	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
4188	3868	WerFault.exe	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
4480	3868	WerFault.exe	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
5084	3868	WerFault.exe	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
1548	3868	WerFault.exe	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
1736	3868	WerFault.exe	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
4852	3868	WerFault.exe	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
2776	3868	WerFault.exe	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

836 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 836 taskkill.exe

pid	process
836	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	836	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.execmd.exe

description	pid	process	target process
PID 3868 wrote to memory of 1568	3868	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe	cmd.exe
PID 3868 wrote to memory of 1568	3868	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe	cmd.exe
PID 3868 wrote to memory of 1568	3868	732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe	cmd.exe
PID 1568 wrote to memory of 836	1568	cmd.exe	taskkill.exe
PID 1568 wrote to memory of 836	1568	cmd.exe	taskkill.exe
PID 1568 wrote to memory of 836	1568	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe
"C:\Users\Admin\AppData\Local\Temp\732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 468
2⤵
- Program crash
PID:1168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 796
2⤵
- Program crash
PID:1056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 840
2⤵
- Program crash
PID:3564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 840
2⤵
- Program crash
PID:4188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 868
2⤵
- Program crash
PID:4480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 1000
2⤵
- Program crash
PID:5084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 1108
2⤵
- Program crash
PID:1548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 1364
2⤵
- Program crash
PID:1736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 1672
2⤵
- Program crash
PID:4852

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1568

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "732b56be62d4a6b93fbdbde4de81e5a0e498fc567ed5799baf812a432e771c79.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 1776
2⤵
- Program crash
PID:2776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3868 -ip 3868
1⤵
PID:1928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3868 -ip 3868
1⤵
PID:4400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3868 -ip 3868
1⤵
PID:4884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3868 -ip 3868
1⤵
PID:5032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3868 -ip 3868
1⤵
PID:560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3868 -ip 3868
1⤵
PID:4792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3868 -ip 3868
1⤵
PID:3484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3868 -ip 3868
1⤵
PID:3780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3868 -ip 3868
1⤵
PID:3032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3868 -ip 3868
1⤵
PID:2440

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\NDYWT7Z5\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3868-1-0x00000000026D0000-0x00000000027D0000-memory.dmp

Filesize
1024KB

Download
memory/3868-2-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3868-3-0x0000000000400000-0x0000000002380000-memory.dmp

Filesize
31.5MB

Download
memory/3868-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3868-15-0x0000000000400000-0x0000000002380000-memory.dmp

Filesize
31.5MB

Download
memory/3868-19-0x00000000026D0000-0x00000000027D0000-memory.dmp

Filesize
1024KB

Download
memory/3868-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3868-34-0x0000000000400000-0x0000000002380000-memory.dmp

Filesize
31.5MB

Download
memory/3868-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

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