gcleaner | 72fb0c8990d4c94115f102215dd1213125898fd1298e579d13effeba7b850235

General

Target

b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe
Size

270KB
MD5

07288e5e03cd70d0ac2cc306bc45083c
SHA1

610dd36a7ac135f6a7b130bbe5a8a0f65dfb3475
SHA256

b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa
SHA512

a15bf038508474fd987390feae4afe4eacb5cb71086535f3ba0ae9c196d6fc53ef848c53ff7da817754adcffa3218ef62a178c8ea36991138a9eb28552407340
SSDEEP

3072:J2CMdPt9W8LTxXLJBOf8wm2xxDOmRkgx8NYg+5DkD+IqgUJX07GAC0G4rVwx6C+F:0dl99LTxXTe8wtxkSkYgFvqryPfV+4

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

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:

b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe

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

System Information Discovery
T1082

Program crash 7 IoCs

Processes:

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

pid	pid_target	process	target process
5072	4816	WerFault.exe	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe
3608	4816	WerFault.exe	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe
4288	4816	WerFault.exe	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe
4400	4816	WerFault.exe	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe
2700	4816	WerFault.exe	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe
4260	4816	WerFault.exe	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe
760	4816	WerFault.exe	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3588 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3588 taskkill.exe

pid	process
3588	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3588	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.execmd.exe

description	pid	process	target process
PID 4816 wrote to memory of 2416	4816	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe	cmd.exe
PID 4816 wrote to memory of 2416	4816	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe	cmd.exe
PID 4816 wrote to memory of 2416	4816	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe	cmd.exe
PID 2416 wrote to memory of 3588	2416	cmd.exe	taskkill.exe
PID 2416 wrote to memory of 3588	2416	cmd.exe	taskkill.exe
PID 2416 wrote to memory of 3588	2416	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe
"C:\Users\Admin\AppData\Local\Temp\b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 684
  2⤵
  - Program crash
  PID:5072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 780
  2⤵
  - Program crash
  PID:3608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 916
  2⤵
  - Program crash
  PID:4288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 720
  2⤵
  - Program crash
  PID:4400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 788
  2⤵
  - Program crash
  PID:2700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 720
  2⤵
  - Program crash
  PID:4260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2416
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 740
  2⤵
  - Program crash
  PID:760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 4816 -ip 4816
1⤵
PID:3148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 4816 -ip 4816
1⤵
PID:5048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4816 -ip 4816
1⤵
PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4816 -ip 4816
1⤵
PID:3240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4816 -ip 4816
1⤵
PID:964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4816 -ip 4816
1⤵
PID:5092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4816 -ip 4816
1⤵
PID:264

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4816-134-0x00000000021C0000-0x0000000002200000-memory.dmp

Filesize
256KB

Download
memory/4816-135-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/4816-136-0x00000000021C0000-0x0000000002200000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads