gcleaner | d1a299c8b89530ee091ceeb89c172bdd9317816825b68926b0e368714e74d27f

Resubmissions

07-01-2024 18:07

240107-wqg6qabfcl 10

16-01-2022 12:55

220116-p5sgnsfdf9 10

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
07-01-2024 18:07

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General

Target

57620fe23fe46b9b50f5ec40bdc6b8fa.exe
Size

419KB
MD5

57620fe23fe46b9b50f5ec40bdc6b8fa
SHA1

fe38a4e6d66ad1cc621ea39e3d344d1fcd6227d2
SHA256

d1a299c8b89530ee091ceeb89c172bdd9317816825b68926b0e368714e74d27f
SHA512

671cd11456cc62533acfd62693db39488aa8964db4f4b4729ec1305b8b5550798bd1eae4107957eb5bc1b29d6023c8f28b0f33ccaf21a2b7169e5bf49125f1a3
SSDEEP

6144:1qH4z36C4T4+vJSMo6NH3IuMcWml++Em3aH5WO7qxCico7BEn8Zr1:1q5C64eGuMcWO+o3GzexCoyn85

Score

10^/10

gcleaner onlylogger loader

Malware Config

Extracted

Family

gcleaner

web-stat.biz

privatevolume.bi

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger

OnlyLogger payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2992-2-0x0000000000240000-0x000000000028C000-memory.dmp	family_onlylogger
behavioral1/memory/2992-3-0x0000000000400000-0x0000000000579000-memory.dmp	family_onlylogger
behavioral1/memory/2992-4-0x0000000000400000-0x0000000000579000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1700 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2144 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2144 taskkill.exe

pid	process
1700	cmd.exe

pid	process
2144	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2144	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

57620fe23fe46b9b50f5ec40bdc6b8fa.execmd.exe

description	pid	process	target process
PID 2992 wrote to memory of 1700	2992	57620fe23fe46b9b50f5ec40bdc6b8fa.exe	cmd.exe
PID 2992 wrote to memory of 1700	2992	57620fe23fe46b9b50f5ec40bdc6b8fa.exe	cmd.exe
PID 2992 wrote to memory of 1700	2992	57620fe23fe46b9b50f5ec40bdc6b8fa.exe	cmd.exe
PID 2992 wrote to memory of 1700	2992	57620fe23fe46b9b50f5ec40bdc6b8fa.exe	cmd.exe
PID 1700 wrote to memory of 2144	1700	cmd.exe	taskkill.exe
PID 1700 wrote to memory of 2144	1700	cmd.exe	taskkill.exe
PID 1700 wrote to memory of 2144	1700	cmd.exe	taskkill.exe
PID 1700 wrote to memory of 2144	1700	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\57620fe23fe46b9b50f5ec40bdc6b8fa.exe
"C:\Users\Admin\AppData\Local\Temp\57620fe23fe46b9b50f5ec40bdc6b8fa.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2992

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "57620fe23fe46b9b50f5ec40bdc6b8fa.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\57620fe23fe46b9b50f5ec40bdc6b8fa.exe" & exit
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "57620fe23fe46b9b50f5ec40bdc6b8fa.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2144

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2992-1-0x00000000009C0000-0x0000000000AC0000-memory.dmp

Filesize
1024KB

Download
memory/2992-2-0x0000000000240000-0x000000000028C000-memory.dmp

Filesize
304KB

Download
memory/2992-3-0x0000000000400000-0x0000000000579000-memory.dmp

Filesize
1.5MB

Download
memory/2992-4-0x0000000000400000-0x0000000000579000-memory.dmp

Filesize
1.5MB

Download