gcleaner | aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae

General

Target

aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
Size

296KB
MD5

554a111411e3561059a01b9cffdd5fb1
SHA1

3531f7c8cdff317f03c53f67efb4ce927d283169
SHA256

aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae
SHA512

565b4ef140b5703773d4c2de2825aad49b3bca7205df589a55346ffaa56529cf18b4f3f7dc96eb9cdf42984cc3f5b77ce91eb6c1e1323fb305c26b12aa6eabbb
SSDEEP

3072:B+TlOm8HrKHLwQIcwTg+Qx6cviCHQNetMq/LuYJe1AhBsXall2HXOaH3W:gOfLKH/IcwE+Qx6cvxwNIFhY1BeIZ

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
4668	3648	WerFault.exe	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
4652	3648	WerFault.exe	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
1968	3648	WerFault.exe	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
3180	3648	WerFault.exe	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
2372	3648	WerFault.exe	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
3444	3648	WerFault.exe	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
4584	3648	WerFault.exe	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
132	3648	WerFault.exe	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
3336	3648	WerFault.exe	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
1484	3648	WerFault.exe	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2820 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2820 taskkill.exe

pid	process
2820	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2820	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.execmd.exe

description	pid	process	target process
PID 3648 wrote to memory of 1388	3648	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe	cmd.exe
PID 3648 wrote to memory of 1388	3648	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe	cmd.exe
PID 3648 wrote to memory of 1388	3648	aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe	cmd.exe
PID 1388 wrote to memory of 2820	1388	cmd.exe	taskkill.exe
PID 1388 wrote to memory of 2820	1388	cmd.exe	taskkill.exe
PID 1388 wrote to memory of 2820	1388	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe
"C:\Users\Admin\AppData\Local\Temp\aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 476
2⤵
- Program crash
PID:4668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 532
2⤵
- Program crash
PID:4652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 788
2⤵
- Program crash
PID:1968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 816
2⤵
- Program crash
PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 808
2⤵
- Program crash
PID:2372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 852
2⤵
- Program crash
PID:3444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 984
2⤵
- Program crash
PID:4584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 1088
2⤵
- Program crash
PID:132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 1640
2⤵
- Program crash
PID:3336

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1388

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "aaf84aa6e7419036b538047571e679779504dc665fba54753f7b07d94002c0ae.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 1660
2⤵
- Program crash
PID:1484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3648 -ip 3648
1⤵
PID:2000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3648 -ip 3648
1⤵
PID:3904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3648 -ip 3648
1⤵
PID:1384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3648 -ip 3648
1⤵
PID:2596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3648 -ip 3648
1⤵
PID:2088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3648 -ip 3648
1⤵
PID:3420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3648 -ip 3648
1⤵
PID:1456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3648 -ip 3648
1⤵
PID:3396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3648 -ip 3648
1⤵
PID:3012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3648 -ip 3648
1⤵
PID:2264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\L5RX1ZBN\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3648-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/3648-2-0x0000000002180000-0x00000000021BC000-memory.dmp

Filesize
240KB

Download
memory/3648-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3648-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3648-14-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3648-21-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/3648-22-0x0000000002180000-0x00000000021BC000-memory.dmp

Filesize
240KB

Download
memory/3648-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3648-34-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3648-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

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