gcleaner | a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f

General

Target

a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe
Size

345KB
MD5

870fde4ecb883ea981f9f7edb90e4d83
SHA1

9570185a599c1423f9dc389536300d4d138dea21
SHA256

a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f
SHA512

409f04049daeb75d092fccfbafb494c7fb4f8a0d7fb21f3285d5526b52ba9bad393c40ec7e5a2a468d717a39f6fc2ffb236c143a792211410fd07723e8518967
SSDEEP

6144:ZpvCQ3CKPlL6+iEG6WnAB+pcNdMEGZWrLT/:7vCQSiWgGBmNdMBo

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 9 IoCs

Processes:

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

pid	pid_target	process	target process
1512	1052	WerFault.exe	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe
4592	1052	WerFault.exe	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe
4208	1052	WerFault.exe	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe
984	1052	WerFault.exe	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe
2100	1052	WerFault.exe	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe
3556	1052	WerFault.exe	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe
536	1052	WerFault.exe	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe
4560	1052	WerFault.exe	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe
3312	1052	WerFault.exe	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4312 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4312 taskkill.exe

pid	process
4312	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4312	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.execmd.exe

description	pid	process	target process
PID 1052 wrote to memory of 568	1052	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe	cmd.exe
PID 1052 wrote to memory of 568	1052	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe	cmd.exe
PID 1052 wrote to memory of 568	1052	a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe	cmd.exe
PID 568 wrote to memory of 4312	568	cmd.exe	taskkill.exe
PID 568 wrote to memory of 4312	568	cmd.exe	taskkill.exe
PID 568 wrote to memory of 4312	568	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe
"C:\Users\Admin\AppData\Local\Temp\a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 476
2⤵
- Program crash
PID:1512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 804
2⤵
- Program crash
PID:4592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 792
2⤵
- Program crash
PID:4208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 792
2⤵
- Program crash
PID:984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 868
2⤵
- Program crash
PID:2100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 1000
2⤵
- Program crash
PID:3556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 1084
2⤵
- Program crash
PID:536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 1656
2⤵
- Program crash
PID:4560

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:568

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "a6dc82722bd8dea7d2f969094c178967eb590fb08c260e7a5c00e7f69489b35f.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 1608
2⤵
- Program crash
PID:3312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1052 -ip 1052
1⤵
PID:3272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 1052 -ip 1052
1⤵
PID:3520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1052 -ip 1052
1⤵
PID:5024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1052 -ip 1052
1⤵
PID:2360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1052 -ip 1052
1⤵
PID:1012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1052 -ip 1052
1⤵
PID:4652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1052 -ip 1052
1⤵
PID:1712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1052 -ip 1052
1⤵
PID:4852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1052 -ip 1052
1⤵
PID:2996

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\D1O30EO5\advdlc[1].htm
Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1052-2-0x0000000003CE0000-0x0000000003D1C000-memory.dmp

Filesize
240KB

Download
memory/1052-1-0x0000000002180000-0x0000000002280000-memory.dmp

Filesize
1024KB

Download
memory/1052-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1052-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1052-15-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download
memory/1052-18-0x0000000002180000-0x0000000002280000-memory.dmp

Filesize
1024KB

Download
memory/1052-22-0x0000000003CE0000-0x0000000003D1C000-memory.dmp

Filesize
240KB

Download
memory/1052-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1052-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1052-34-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download

Analysis

Sharing