gcleaner | 9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131

General

Target

9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe
Size

3.1MB
MD5

1764990523d5dd6c063275abde06d3da
SHA1

fed5a57022bf7e25b5008b85b249c1046d28f6d0
SHA256

9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131
SHA512

b5f3aee2ef8e815ce20a0fa0ace3a1b8cedc6e01b9f0305702b619c6eb98e263c85c756b10869ada7b010ff5e25235d1cdd582a11b2656917cc37874afb0e9e9
SSDEEP

49152:amlQxq/9pIzOIlZKfB0rDM0GXCQuSJHC8zV:qc0l8WrzkCQugi0V

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:

9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe

Executes dropped EXE 1 IoCs

Processes:

EAhh5coj.exe

pid process

2592 EAhh5coj.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1556 taskkill.exe

pid	process
2592	EAhh5coj.exe

pid	process
1556	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe

pid	process
3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe
3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe
3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe
3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe
3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe
3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe

pid process

3660 9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1556 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1556	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.execmd.exe

description	pid	process	target process
PID 3660 wrote to memory of 2592	3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe	EAhh5coj.exe
PID 3660 wrote to memory of 2592	3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe	EAhh5coj.exe
PID 3660 wrote to memory of 2592	3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe	EAhh5coj.exe
PID 3660 wrote to memory of 4220	3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe	cmd.exe
PID 3660 wrote to memory of 4220	3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe	cmd.exe
PID 3660 wrote to memory of 4220	3660	9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe	cmd.exe
PID 4220 wrote to memory of 1556	4220	cmd.exe	taskkill.exe
PID 4220 wrote to memory of 1556	4220	cmd.exe	taskkill.exe
PID 4220 wrote to memory of 1556	4220	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe
"C:\Users\Admin\AppData\Local\Temp\9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3660
- C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\EAhh5coj.exe
  2⤵
  - Executes dropped EXE
  PID:2592
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4220
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "9b6bf6b18292879d45cbd5ed83ac14f088484299fcdcf5d382a2acf5e6887131.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1556

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YYL8D8JJ\dll[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\EAhh5coj.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\EAhh5coj.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/3660-133-0x0000000000400000-0x0000000001514000-memory.dmp

Filesize
17.1MB

Download
memory/3660-134-0x0000000000400000-0x0000000001514000-memory.dmp

Filesize
17.1MB

Download
memory/3660-139-0x0000000000400000-0x0000000001514000-memory.dmp

Filesize
17.1MB

Download
memory/3660-143-0x0000000000400000-0x0000000001514000-memory.dmp

Filesize
17.1MB

Download
memory/3660-149-0x0000000000400000-0x0000000001514000-memory.dmp

Filesize
17.1MB

Download
memory/3660-150-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/3660-167-0x0000000000400000-0x0000000001514000-memory.dmp

Filesize
17.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads