gcleaner | 2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a

General

Target

2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
Size

275KB
MD5

3021048d6200956eed8425f8d13ed458
SHA1

eb5a332a726af47e67c641e7526082c553f71c03
SHA256

2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a
SHA512

1f73cc7fea66ea131b267532a3b84ea46c34715910f12d6539434381935ad346cc625f25af0bc1cb0df65e26f08a98aa5af724b48dd661d6d38464525690bb0c
SSDEEP

6144:hfT+vt6FqlKk4VnP+1wAsieXkqOoRuJRqK40g:550z4VnP4sLX9tRb0

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
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
1136	128	WerFault.exe	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
844	128	WerFault.exe	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
2388	128	WerFault.exe	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
2004	128	WerFault.exe	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
580	128	WerFault.exe	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
1236	128	WerFault.exe	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
3004	128	WerFault.exe	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
4400	128	WerFault.exe	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
4340	128	WerFault.exe	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
952	128	WerFault.exe	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2480 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2480 taskkill.exe

pid	process
2480	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2480	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.execmd.exe

description	pid	process	target process
PID 128 wrote to memory of 5000	128	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe	cmd.exe
PID 128 wrote to memory of 5000	128	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe	cmd.exe
PID 128 wrote to memory of 5000	128	2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe	cmd.exe
PID 5000 wrote to memory of 2480	5000	cmd.exe	taskkill.exe
PID 5000 wrote to memory of 2480	5000	cmd.exe	taskkill.exe
PID 5000 wrote to memory of 2480	5000	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe
"C:\Users\Admin\AppData\Local\Temp\2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 128 -s 476
2⤵
- Program crash
PID:1136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 128 -s 500
2⤵
- Program crash
PID:844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 128 -s 780
2⤵
- Program crash
PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 128 -s 800
2⤵
- Program crash
PID:2004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 128 -s 840
2⤵
- Program crash
PID:580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 128 -s 780
2⤵
- Program crash
PID:1236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 128 -s 960
2⤵
- Program crash
PID:3004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 128 -s 1068
2⤵
- Program crash
PID:4400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 128 -s 1428
2⤵
- Program crash
PID:4340

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:5000

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "2279263815df6659e59e028a5f1db6285dfe38291241d695538578ef634b497a.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 128 -s 1388
2⤵
- Program crash
PID:952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 128 -ip 128
1⤵
PID:4836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 128 -ip 128
1⤵
PID:5096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 128 -ip 128
1⤵
PID:3428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 128 -ip 128
1⤵
PID:904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 128 -ip 128
1⤵
PID:3316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 128 -ip 128
1⤵
PID:3584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 128 -ip 128
1⤵
PID:2620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 128 -ip 128
1⤵
PID:4688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 128 -ip 128
1⤵
PID:3192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 128 -ip 128
1⤵
PID:468

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

memory/128-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/128-2-0x00000000049E0000-0x0000000004A1C000-memory.dmp

Filesize
240KB

Download
memory/128-1-0x0000000003040000-0x0000000003140000-memory.dmp

Filesize
1024KB

Download
memory/128-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/128-6-0x0000000000400000-0x0000000002CA3000-memory.dmp

Filesize
40.6MB

Download

Analysis

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