gcleaner | 194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa

General

Target

194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
Size

345KB
MD5

ec8d9521789d53fae1fae2ff88c62ab9
SHA1

6ce8f5bba9cf0582d34e2ccc7799e61dfcd07adc
SHA256

194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa
SHA512

6ce27af0530a9bb2a8e904d2606411341d3c8350d77c6def5f8a7f3e5b87ae9d51f26cf0d5da42e359778934c06a252e897605f0b3f1d787afbf4c6c3cbc94e4
SSDEEP

3072:pOLHAZA3WPt3MmjO36DRJu46JVxsu+cRDj9RbEvBhj9370taV7du45evwu/e:pO0Amtcmj+vBb+c1BV+B19370tcooUe

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
3112	4532	WerFault.exe	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
1800	4532	WerFault.exe	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
4116	4532	WerFault.exe	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
3416	4532	WerFault.exe	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
4236	4532	WerFault.exe	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
1780	4532	WerFault.exe	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
3552	4532	WerFault.exe	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
2880	4532	WerFault.exe	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
3740	4532	WerFault.exe	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
3256	4532	WerFault.exe	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2392 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2392 taskkill.exe

pid	process
2392	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2392	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.execmd.exe

description	pid	process	target process
PID 4532 wrote to memory of 1164	4532	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe	cmd.exe
PID 4532 wrote to memory of 1164	4532	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe	cmd.exe
PID 4532 wrote to memory of 1164	4532	194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe	cmd.exe
PID 1164 wrote to memory of 2392	1164	cmd.exe	taskkill.exe
PID 1164 wrote to memory of 2392	1164	cmd.exe	taskkill.exe
PID 1164 wrote to memory of 2392	1164	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe
"C:\Users\Admin\AppData\Local\Temp\194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 472
2⤵
- Program crash
PID:3112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 796
2⤵
- Program crash
PID:1800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 836
2⤵
- Program crash
PID:4116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 856
2⤵
- Program crash
PID:3416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 820
2⤵
- Program crash
PID:4236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1000
2⤵
- Program crash
PID:1780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1004
2⤵
- Program crash
PID:3552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1364
2⤵
- Program crash
PID:2880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 1676
2⤵
- Program crash
PID:3740

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1164

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "194c256ee34b7f4fe7f124c2730f6a7e1013b08cba21445a6d91fe35b181f0fa.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 508
2⤵
- Program crash
PID:3256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4532 -ip 4532
1⤵
PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4532 -ip 4532
1⤵
PID:4660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4532 -ip 4532
1⤵
PID:2068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4532 -ip 4532
1⤵
PID:3840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4532 -ip 4532
1⤵
PID:4516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4532 -ip 4532
1⤵
PID:4328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4532 -ip 4532
1⤵
PID:2684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4532 -ip 4532
1⤵
PID:2900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4532 -ip 4532
1⤵
PID:1804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4532 -ip 4532
1⤵
PID:4796

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\H4P8YSYM\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4532-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4532-2-0x0000000003CD0000-0x0000000003D0C000-memory.dmp

Filesize
240KB

Download
memory/4532-1-0x0000000002080000-0x0000000002180000-memory.dmp

Filesize
1024KB

Download
memory/4532-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4532-15-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download
memory/4532-19-0x0000000003CD0000-0x0000000003D0C000-memory.dmp

Filesize
240KB

Download
memory/4532-22-0x0000000002080000-0x0000000002180000-memory.dmp

Filesize
1024KB

Download
memory/4532-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4532-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4532-34-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download

Analysis

Sharing