gcleaner | 77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388

General

Target

77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
Size

277KB
MD5

9bad4b2e33b5f46cd55e649f44f27e90
SHA1

6cfe6ef810f28a4e562e9e36e53fe1dec1dde4e3
SHA256

77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388
SHA512

251c75fa82aff8902bf52581164a16cb9b9efaf2902eecca7a5b81b7d8d21560594b6e2c0bc272ef72d4a0b4b1bda069fb463dd1d7eaabd5704fa005d4682c89
SSDEEP

6144:xDh9q1Lk0EIqdME2iDpDNSbIEzHyd3hYPOw:xDh92Lk0t1ZQ0JbYw

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
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
4932	4948	WerFault.exe	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
2604	4948	WerFault.exe	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
5028	4948	WerFault.exe	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
1548	4948	WerFault.exe	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
2092	4948	WerFault.exe	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
1972	4948	WerFault.exe	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
5036	4948	WerFault.exe	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
388	4948	WerFault.exe	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
1500	4948	WerFault.exe	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
1328	4948	WerFault.exe	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3564 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3564 taskkill.exe

pid	process
3564	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3564	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.execmd.exe

description	pid	process	target process
PID 4948 wrote to memory of 860	4948	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe	cmd.exe
PID 4948 wrote to memory of 860	4948	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe	cmd.exe
PID 4948 wrote to memory of 860	4948	77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe	cmd.exe
PID 860 wrote to memory of 3564	860	cmd.exe	taskkill.exe
PID 860 wrote to memory of 3564	860	cmd.exe	taskkill.exe
PID 860 wrote to memory of 3564	860	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe
"C:\Users\Admin\AppData\Local\Temp\77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 476
2⤵
- Program crash
PID:4932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 500
2⤵
- Program crash
PID:2604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 780
2⤵
- Program crash
PID:5028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 812
2⤵
- Program crash
PID:1548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 832
2⤵
- Program crash
PID:2092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 872
2⤵
- Program crash
PID:1972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 984
2⤵
- Program crash
PID:5036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 1068
2⤵
- Program crash
PID:388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 1436
2⤵
- Program crash
PID:1500

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:860

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "77f5514a159e816442793a82897ef2e64a6fc4199fc8cc4d535494c1b9cad388.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 1216
2⤵
- Program crash
PID:1328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4948 -ip 4948
1⤵
PID:4780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4948 -ip 4948
1⤵
PID:652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4948 -ip 4948
1⤵
PID:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4948 -ip 4948
1⤵
PID:2284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4948 -ip 4948
1⤵
PID:3576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4948 -ip 4948
1⤵
PID:2172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4948 -ip 4948
1⤵
PID:2612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4948 -ip 4948
1⤵
PID:3100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4948 -ip 4948
1⤵
PID:2436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4948 -ip 4948
1⤵
PID:3552

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

memory/4948-1-0x0000000003000000-0x0000000003100000-memory.dmp

Filesize
1024KB

Download
memory/4948-2-0x00000000049E0000-0x0000000004A1C000-memory.dmp

Filesize
240KB

Download
memory/4948-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4948-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4948-6-0x0000000000400000-0x0000000002CA4000-memory.dmp

Filesize
40.6MB

Download

Analysis

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