gcleaner | 642a3e9148e1e7709c5e2b35764e168e548505b88709b99ca49f2e11a05599fa

General

Target

9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe
Size

274KB
MD5

7ebea2e3a1e5ae3bc8e224d206bc6f93
SHA1

6901a26caeb04f7a85965fef96453078d00114e4
SHA256

9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e
SHA512

f0c2b7f21e20afd28a9528e4b57fecc1e62a1de47a4bf762d438a4b3991ac9d4c66ae07032d2fa92df37def94a72aa293e62f8d5f85dca064180895db84bda7e
SSDEEP

6144:u8wLvRMLefcHC+zuMg8KVmOxJRcPsAFDOI9RtyAZcQ2L:yaLefcHuMZTgM3OgBZcQ

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:

9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.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 9 IoCs

Processes:

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

pid	pid_target	process	target process
4004	2080	WerFault.exe	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe
4212	2080	WerFault.exe	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe
928	2080	WerFault.exe	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe
1624	2080	WerFault.exe	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe
4044	2080	WerFault.exe	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe
4080	2080	WerFault.exe	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe
3844	2080	WerFault.exe	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe
3432	2080	WerFault.exe	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe
1668	2080	WerFault.exe	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3736 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3736 taskkill.exe

pid	process
3736	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3736	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.execmd.exe

description	pid	process	target process
PID 2080 wrote to memory of 3468	2080	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe	cmd.exe
PID 2080 wrote to memory of 3468	2080	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe	cmd.exe
PID 2080 wrote to memory of 3468	2080	9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe	cmd.exe
PID 3468 wrote to memory of 3736	3468	cmd.exe	taskkill.exe
PID 3468 wrote to memory of 3736	3468	cmd.exe	taskkill.exe
PID 3468 wrote to memory of 3736	3468	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe
"C:\Users\Admin\AppData\Local\Temp\9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 452
  2⤵
  - Program crash
  PID:4004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 772
  2⤵
  - Program crash
  PID:4212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 780
  2⤵
  - Program crash
  PID:928
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 780
  2⤵
  - Program crash
  PID:1624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 792
  2⤵
  - Program crash
  PID:4044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 928
  2⤵
  - Program crash
  PID:4080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 976
  2⤵
  - Program crash
  PID:3844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 1360
  2⤵
  - Program crash
  PID:3432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3468
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "9c48e1bb555bbb98d635146b5098f1fda8753eade8479c079a14a5a1887fde7e.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 532
  2⤵
  - Program crash
  PID:1668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2080 -ip 2080
1⤵
PID:3416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2080 -ip 2080
1⤵
PID:3576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2080 -ip 2080
1⤵
PID:2704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2080 -ip 2080
1⤵
PID:3532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2080 -ip 2080
1⤵
PID:4508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2080 -ip 2080
1⤵
PID:2512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2080 -ip 2080
1⤵
PID:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2080 -ip 2080
1⤵
PID:3352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2080 -ip 2080
1⤵
PID:3928

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/2080-134-0x00000000023C0000-0x0000000002400000-memory.dmp

Filesize
256KB

Download
memory/2080-136-0x0000000000400000-0x0000000000627000-memory.dmp

Filesize
2.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads