gcleaner | 5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4

General

Target

5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
Size

332KB
MD5

7d16b7eff68e7fd20cba045ff4e89abc
SHA1

b4d88e31624138c58fbb5d197d17dd65dccfbc99
SHA256

5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4
SHA512

af52253a7430807e9cfed310c28e36b79c4155edda6f058f0990cfb41ae9b4e727e96ca3059058853099419944e51dda3223f5874cd714b24591de6fea0c35e5
SSDEEP

6144:pFAk8nQ2fAlR3PHzaAyDJ5Tlo5yLk2r+iJgPoKVKF23M:pFAk8RfAre4Yii6R3

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:

5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe

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
4356	1916	WerFault.exe	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
2284	1916	WerFault.exe	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
1632	1916	WerFault.exe	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
2260	1916	WerFault.exe	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
5104	1916	WerFault.exe	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
2080	1916	WerFault.exe	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
4892	1916	WerFault.exe	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
1972	1916	WerFault.exe	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
4952	1916	WerFault.exe	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
4872	1916	WerFault.exe	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4768 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4768 taskkill.exe

pid	process
4768	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4768	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.execmd.exe

description	pid	process	target process
PID 1916 wrote to memory of 4560	1916	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe	cmd.exe
PID 1916 wrote to memory of 4560	1916	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe	cmd.exe
PID 1916 wrote to memory of 4560	1916	5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe	cmd.exe
PID 4560 wrote to memory of 4768	4560	cmd.exe	taskkill.exe
PID 4560 wrote to memory of 4768	4560	cmd.exe	taskkill.exe
PID 4560 wrote to memory of 4768	4560	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe
"C:\Users\Admin\AppData\Local\Temp\5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 452
2⤵
- Program crash
PID:4356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 480
2⤵
- Program crash
PID:2284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 748
2⤵
- Program crash
PID:1632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 788
2⤵
- Program crash
PID:2260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 804
2⤵
- Program crash
PID:5104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 820
2⤵
- Program crash
PID:2080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 912
2⤵
- Program crash
PID:4892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 916
2⤵
- Program crash
PID:1972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 1584
2⤵
- Program crash
PID:4952

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4560

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "5b7b3823baca5ac6613f75a32dff792fbcc2dfaf2c128ebc338993f868ba4df4.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 1276
2⤵
- Program crash
PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1916 -ip 1916
1⤵
PID:1904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1916 -ip 1916
1⤵
PID:4972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1916 -ip 1916
1⤵
PID:3576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1916 -ip 1916
1⤵
PID:4252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1916 -ip 1916
1⤵
PID:1440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1916 -ip 1916
1⤵
PID:4224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1916 -ip 1916
1⤵
PID:1808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1916 -ip 1916
1⤵
PID:4444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1916 -ip 1916
1⤵
PID:1552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1916 -ip 1916
1⤵
PID:432

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\W5OVUPOF\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1916-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/1916-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1916-2-0x00000000005C0000-0x00000000005FC000-memory.dmp

Filesize
240KB

Download
memory/1916-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1916-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1916-23-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/1916-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1916-34-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1916-33-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads