gcleaner | bd9c3cc80e6627d40b443ce3bd4d4914e4bfaa79ab36ad63cf9aab6f19187c71

Analysis

max time kernel
27s
max time network
31s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
21-03-2023 13:29

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General

Target

efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe
Size

382KB
MD5

0b210149771c6be2ed5b6b35a5cce602
SHA1

0eb97fd3876ad888b1a9c6eae468ff607a3cf6d3
SHA256

efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c
SHA512

82d1871482bd12cbfa280faaafb1714ad52f6eed816584503583a3d6954e121c019c31f1414dd7c0ca23b081e63f8cf79e6b9766b7ad814aa3f6bb90fac29799
SSDEEP

6144:De/8LygqoByTolrDZkS/C12BZphqoLZ4PUyym3wVLvuVNG23BO:DQ8WgWopZkmCkZphqo2PUyB3wRGV42

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

45.139.105.171

85.31.46.167

107.182.129.235

171.22.30.106

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

2016 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

768 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 768 taskkill.exe

pid	process
2016	cmd.exe

pid	process
768	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	768	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.execmd.exe

description	pid	process	target process
PID 1220 wrote to memory of 2016	1220	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe	cmd.exe
PID 1220 wrote to memory of 2016	1220	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe	cmd.exe
PID 1220 wrote to memory of 2016	1220	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe	cmd.exe
PID 1220 wrote to memory of 2016	1220	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe	cmd.exe
PID 2016 wrote to memory of 768	2016	cmd.exe	taskkill.exe
PID 2016 wrote to memory of 768	2016	cmd.exe	taskkill.exe
PID 2016 wrote to memory of 768	2016	cmd.exe	taskkill.exe
PID 2016 wrote to memory of 768	2016	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe
"C:\Users\Admin\AppData\Local\Temp\efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1220

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe" & exit
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:768

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/1220-55-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download
memory/1220-56-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download