gcleaner | c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d

General

Target

c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
Size

329KB
MD5

f5d01b5b15f2bb02ac0cb11a4043e3cd
SHA1

ebcf77b8a8b6d84ffe01f0b7f7c038a36ae7a664
SHA256

c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d
SHA512

9dc1a7f1594cc5782e8dbf0d3a21ee45acba98391441b5f85b595521b699a0645f544536a8de1b72d3cff23138c122dd11f32cb153df393f5a694ad5264353f3
SSDEEP

3072:IOXkj5X1MmGKbG2K9TYIB3BpqqUMOOU52IkqXVs9xXBA1d45d1o1Wq4OG57yZDJv:IOXe5XZbwqVqUMOO/N5Bk4b1oYXONf

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.64.56

185.172.128.69

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 10 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
4168	2892	WerFault.exe	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
3252	2892	WerFault.exe	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
3012	2892	WerFault.exe	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
984	2892	WerFault.exe	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
3264	2892	WerFault.exe	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
4224	2892	WerFault.exe	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
1536	2892	WerFault.exe	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
4924	2892	WerFault.exe	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
1552	2892	WerFault.exe	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
2448	2892	WerFault.exe	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4896 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4896 taskkill.exe

pid	process
4896	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4896	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.execmd.exe

description	pid	process	target process
PID 2892 wrote to memory of 2572	2892	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe	cmd.exe
PID 2892 wrote to memory of 2572	2892	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe	cmd.exe
PID 2892 wrote to memory of 2572	2892	c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe	cmd.exe
PID 2572 wrote to memory of 4896	2572	cmd.exe	taskkill.exe
PID 2572 wrote to memory of 4896	2572	cmd.exe	taskkill.exe
PID 2572 wrote to memory of 4896	2572	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe
"C:\Users\Admin\AppData\Local\Temp\c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 476
2⤵
- Program crash
PID:4168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 796
2⤵
- Program crash
PID:3252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 836
2⤵
- Program crash
PID:3012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 856
2⤵
- Program crash
PID:984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 824
2⤵
- Program crash
PID:3264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 1000
2⤵
- Program crash
PID:4224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 1096
2⤵
- Program crash
PID:1536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 1256
2⤵
- Program crash
PID:4924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 1704
2⤵
- Program crash
PID:1552

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2572

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "c53ff8836f00571d7fce210a7596c52dc073387f723b9a57ff48750ae2f0505d.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 1732
2⤵
- Program crash
PID:2448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2892 -ip 2892
1⤵
PID:1600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2892 -ip 2892
1⤵
PID:2796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2892 -ip 2892
1⤵
PID:460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2892 -ip 2892
1⤵
PID:2104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2892 -ip 2892
1⤵
PID:2588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2892 -ip 2892
1⤵
PID:2988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2892 -ip 2892
1⤵
PID:2896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2892 -ip 2892
1⤵
PID:3716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2892 -ip 2892
1⤵
PID:2992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2892 -ip 2892
1⤵
PID:5052

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VZQAW3IB\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2892-2-0x0000000002130000-0x000000000216C000-memory.dmp

Filesize
240KB

Download
memory/2892-1-0x00000000021A0000-0x00000000022A0000-memory.dmp

Filesize
1024KB

Download
memory/2892-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2892-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2892-15-0x0000000000400000-0x0000000001F9E000-memory.dmp

Filesize
27.6MB

Download
memory/2892-19-0x00000000021A0000-0x00000000022A0000-memory.dmp

Filesize
1024KB

Download
memory/2892-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2892-34-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2892-33-0x0000000000400000-0x0000000001F9E000-memory.dmp

Filesize
27.6MB

Download

Analysis

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