gcleaner | db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d

General

Target

db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe
Size

330KB
MD5

8345db6fd9ec5d96d83b71226702fb3e
SHA1

58dd247e2039441ee45fdbd48f69839ea7d3cd6c
SHA256

db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d
SHA512

1a80fad1b025246e07303ea51fb903d1b78e435684b31dc8416258a7f963079aa023c728eadaf0ebe83a48ba40a1c8ca15afc44c3737ed6774c737fe1579e227
SSDEEP

3072:/2ujvya+1XtOQCjWBtyFRqqTOgztRl1QsLYNvfvL3KZ4JH5GSKvkdm:+ujt+Z6Wfyvqq9RlSfvbkmwSwkd

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 9 IoCs

Processes:

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

pid	pid_target	process	target process
3876	2708	WerFault.exe	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe
4708	2708	WerFault.exe	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe
1372	2708	WerFault.exe	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe
1200	2708	WerFault.exe	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe
3056	2708	WerFault.exe	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe
2160	2708	WerFault.exe	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe
2692	2708	WerFault.exe	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe
2888	2708	WerFault.exe	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe
3016	2708	WerFault.exe	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1592 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1592 taskkill.exe

pid	process
1592	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1592	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.execmd.exe

description	pid	process	target process
PID 2708 wrote to memory of 4836	2708	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe	cmd.exe
PID 2708 wrote to memory of 4836	2708	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe	cmd.exe
PID 2708 wrote to memory of 4836	2708	db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe	cmd.exe
PID 4836 wrote to memory of 1592	4836	cmd.exe	taskkill.exe
PID 4836 wrote to memory of 1592	4836	cmd.exe	taskkill.exe
PID 4836 wrote to memory of 1592	4836	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe
"C:\Users\Admin\AppData\Local\Temp\db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 448
2⤵
- Program crash
PID:3876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 764
2⤵
- Program crash
PID:4708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 804
2⤵
- Program crash
PID:1372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 792
2⤵
- Program crash
PID:1200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 776
2⤵
- Program crash
PID:3056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 928
2⤵
- Program crash
PID:2160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 932
2⤵
- Program crash
PID:2692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 1536
2⤵
- Program crash
PID:2888

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4836

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "db38d0c3a7e6b2697d5341ba3b0c7016743fd232cae81c58328fceddd0ddbf3d.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 512
2⤵
- Program crash
PID:3016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2708 -ip 2708
1⤵
PID:940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2708 -ip 2708
1⤵
PID:1360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2708 -ip 2708
1⤵
PID:2344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2708 -ip 2708
1⤵
PID:3108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2708 -ip 2708
1⤵
PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2708 -ip 2708
1⤵
PID:408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2708 -ip 2708
1⤵
PID:772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2708 -ip 2708
1⤵
PID:5036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2708 -ip 2708
1⤵
PID:664

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DKWDYRX8\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2708-2-0x0000000002040000-0x000000000207C000-memory.dmp

Filesize
240KB

Download
memory/2708-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2708-1-0x0000000002090000-0x0000000002190000-memory.dmp

Filesize
1024KB

Download
memory/2708-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2708-15-0x0000000000400000-0x0000000001F9E000-memory.dmp

Filesize
27.6MB

Download
memory/2708-19-0x0000000002090000-0x0000000002190000-memory.dmp

Filesize
1024KB

Download
memory/2708-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2708-34-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2708-33-0x0000000000400000-0x0000000001F9E000-memory.dmp

Filesize
27.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads