gcleaner | d2a5f74ee96363121ed7658717f3118e35e4cc013168f0ecb24e6b5dfb2d3246

Analysis

max time kernel
27s
max time network
104s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
13-03-2023 09:39

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General

Target

485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.exe
Size

276KB
MD5

354895bd5079cc205b265799b71ec05c
SHA1

1016ac93fad8d1706255e96f7807c1950bd3d78c
SHA256

485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c
SHA512

792fd2aa10633cb5b59ae51b2e124d9e2765f1d830b9f785666ef09683380e765b299fb528d319662dedcc0503914a95e5a30a128c021f20bb3498c047395b8f
SSDEEP

3072:qmEFfQzn7IRveaMP7osVhZTTqadpBtrWAbTJhzoxM7viqOUAX6xJ9n+T6:UFYznoeaMZXbSAp8pz+

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

1948 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

680 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 680 taskkill.exe

pid	process
1948	cmd.exe

pid	process
680	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	680	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.execmd.exe

description	pid	process	target process
PID 1992 wrote to memory of 1948	1992	485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.exe	cmd.exe
PID 1992 wrote to memory of 1948	1992	485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.exe	cmd.exe
PID 1992 wrote to memory of 1948	1992	485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.exe	cmd.exe
PID 1992 wrote to memory of 1948	1992	485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.exe	cmd.exe
PID 1948 wrote to memory of 680	1948	cmd.exe	taskkill.exe
PID 1948 wrote to memory of 680	1948	cmd.exe	taskkill.exe
PID 1948 wrote to memory of 680	1948	cmd.exe	taskkill.exe
PID 1948 wrote to memory of 680	1948	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.exe
"C:\Users\Admin\AppData\Local\Temp\485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1992

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.exe" & exit
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1948

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "485cadde1de44b50c205f7019b7f63222af1e779b9a14b9363bd811d6933f80c.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:680

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/1992-55-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/1992-56-0x00000000002D0000-0x0000000000310000-memory.dmp

Filesize
256KB

Download