gcleaner | b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 01:57

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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 discovery loader

Malware Config

Extracted

Family

gcleaner

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
Gcleaner family
gcleaner

Deletes itself 1 IoCs

pid	Process
2684	cmd.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2900	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2900	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2684	2168	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe	30
PID 2168 wrote to memory of 2684	2168	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe	30
PID 2168 wrote to memory of 2684	2168	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe	30
PID 2168 wrote to memory of 2684	2168	b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe	30
PID 2684 wrote to memory of 2900	2684	cmd.exe	32
PID 2684 wrote to memory of 2900	2684	cmd.exe	32
PID 2684 wrote to memory of 2900	2684	cmd.exe	32
PID 2684 wrote to memory of 2900	2684	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe
"C:\Users\Admin\AppData\Local\Temp\b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2168
- 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⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "b58e7960e34921d61b87169ed3465b816145d06f04ab42723688bf12e3201faa.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2168-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2168-2-0x0000000001BB0000-0x0000000001BF0000-memory.dmp

Filesize
256KB

Download
memory/2168-3-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2168-4-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2168-5-0x0000000001BB0000-0x0000000001BF0000-memory.dmp

Filesize
256KB

Download
memory/2168-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download