gcleaner | 1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4

Analysis

max time kernel
30s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
05-04-2023 11:01

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General

Target

1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.exe
Size

319KB
MD5

5967f722e3b6ef7c9285a3c3e08612c8
SHA1

36dfb0b5437eee03f231d536dc96478e69d3c3f3
SHA256

1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4
SHA512

f6a37f3aef850eedd36d207dc216b72893f1daa852926134a299e7f52bd1674bedeb0d69a285f0a0608c15cc86f57ef4a4068389c4bc49f865898bd21d451141
SSDEEP

6144:V3L7lp6tB4kt5+hSzkwf1tw3x8cRa65K206GXrbjwyGXQ9:V3Plwvt5+hS4q1w1N5KsKEX

Score

10^/10

gcleaner 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
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

392 cmd.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

784 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 784 taskkill.exe

pid	process
392	cmd.exe

pid	process
784	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	784	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.execmd.exe

description	pid	process	target process
PID 1768 wrote to memory of 392	1768	1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.exe	cmd.exe
PID 1768 wrote to memory of 392	1768	1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.exe	cmd.exe
PID 1768 wrote to memory of 392	1768	1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.exe	cmd.exe
PID 1768 wrote to memory of 392	1768	1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.exe	cmd.exe
PID 392 wrote to memory of 784	392	cmd.exe	taskkill.exe
PID 392 wrote to memory of 784	392	cmd.exe	taskkill.exe
PID 392 wrote to memory of 784	392	cmd.exe	taskkill.exe
PID 392 wrote to memory of 784	392	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.exe
"C:\Users\Admin\AppData\Local\Temp\1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1768

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.exe" & exit
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:392

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "1e76e4bedd40256e084d3ee8e35ab8104ea17a02119a36fccf749dcdb75e4fc4.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:784

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1768-55-0x0000000000240000-0x0000000000280000-memory.dmp

Filesize
256KB

Download
memory/1768-56-0x0000000000400000-0x0000000000581000-memory.dmp

Filesize
1.5MB

Download
memory/1768-58-0x0000000000400000-0x0000000000581000-memory.dmp

Filesize
1.5MB

Download