gcleaner | e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8

General

Target

e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
Size

374KB
MD5

91dc8e4bee55d4ae14d13784cd712cbc
SHA1

28c247927791d5115a420a28df80f373f34a3d34
SHA256

e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8
SHA512

cc3878ee59b42cb01d53044e9d8c91e5d5966efc59bd3022ab9fc67afd859107409970d3cd6248eb33016455a7f89eb64ea04e2b281ac597a395ef617145a43a
SSDEEP

6144:SWv5uz3ojFc3wBnhAvBLdy/NNBLPG6GUWZTb+el:SWvM3oj+3wLOLdyvBLP1tWZx

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 11 IoCs

Processes:

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

pid	pid_target	process	target process
4100	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
804	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
3380	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
4004	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
1808	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
1964	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
4056	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
3044	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
5056	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
4336	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
2452	2372	WerFault.exe	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

792 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 792 taskkill.exe

pid	process
792	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	792	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.execmd.exe

description	pid	process	target process
PID 2372 wrote to memory of 664	2372	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe	cmd.exe
PID 2372 wrote to memory of 664	2372	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe	cmd.exe
PID 2372 wrote to memory of 664	2372	e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe	cmd.exe
PID 664 wrote to memory of 792	664	cmd.exe	taskkill.exe
PID 664 wrote to memory of 792	664	cmd.exe	taskkill.exe
PID 664 wrote to memory of 792	664	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe
"C:\Users\Admin\AppData\Local\Temp\e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 476
2⤵
- Program crash
PID:4100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 480
2⤵
- Program crash
PID:804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 780
2⤵
- Program crash
PID:3380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 820
2⤵
- Program crash
PID:4004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 816
2⤵
- Program crash
PID:1808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 848
2⤵
- Program crash
PID:1964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 984
2⤵
- Program crash
PID:4056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 1068
2⤵
- Program crash
PID:3044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 1424
2⤵
- Program crash
PID:5056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 1744
2⤵
- Program crash
PID:4336

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:664

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "e9c7f926c3040b05ee3a575579f26803a238357f3ad1543c4edb78c49af923d8.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 1372
2⤵
- Program crash
PID:2452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2372 -ip 2372
1⤵
PID:2768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2372 -ip 2372
1⤵
PID:1432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2372 -ip 2372
1⤵
PID:460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2372 -ip 2372
1⤵
PID:3488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2372 -ip 2372
1⤵
PID:868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2372 -ip 2372
1⤵
PID:4812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2372 -ip 2372
1⤵
PID:3684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2372 -ip 2372
1⤵
PID:1992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2372 -ip 2372
1⤵
PID:1104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2372 -ip 2372
1⤵
PID:4584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2372 -ip 2372
1⤵
PID:4728

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\Q6G58NOJ\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2372-1-0x0000000002E50000-0x0000000002F50000-memory.dmp

Filesize
1024KB

Download
memory/2372-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2372-2-0x00000000049C0000-0x00000000049FC000-memory.dmp

Filesize
240KB

Download
memory/2372-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2372-14-0x0000000000400000-0x0000000002CBC000-memory.dmp

Filesize
40.7MB

Download
memory/2372-18-0x0000000002E50000-0x0000000002F50000-memory.dmp

Filesize
1024KB

Download
memory/2372-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2372-26-0x0000000000400000-0x0000000002CBC000-memory.dmp

Filesize
40.7MB

Download
memory/2372-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2372-34-0x0000000000400000-0x0000000002CBC000-memory.dmp

Filesize
40.7MB

Download

Analysis

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