gcleaner | 4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803

General

Target

4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
Size

344KB
MD5

68e107b88b8af9e541db9d9bcf613c11
SHA1

8613a063f955d5ad73d362846aa920d85c000f80
SHA256

4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803
SHA512

727d99e099a703fc9c757b45eda7f3d437e98195e089e7a51369b370fb981f8e7189a17e3639605ded0771cc024bcfd739932af804b6fff8af2db35bb963c931
SSDEEP

6144:mMmO2wzAQk6MXH9BRJDuETz6t7cWnAvbBLTe:xBtnM3Ldu7cDvb

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe

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
4584	4640	WerFault.exe	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
2180	4640	WerFault.exe	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
808	4640	WerFault.exe	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
2868	4640	WerFault.exe	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
3276	4640	WerFault.exe	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
2708	4640	WerFault.exe	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
3844	4640	WerFault.exe	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
4832	4640	WerFault.exe	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
2148	4640	WerFault.exe	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
1376	4640	WerFault.exe	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2748 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2748 taskkill.exe

pid	process
2748	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2748	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.execmd.exe

description	pid	process	target process
PID 4640 wrote to memory of 2056	4640	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe	cmd.exe
PID 4640 wrote to memory of 2056	4640	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe	cmd.exe
PID 4640 wrote to memory of 2056	4640	4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe	cmd.exe
PID 2056 wrote to memory of 2748	2056	cmd.exe	taskkill.exe
PID 2056 wrote to memory of 2748	2056	cmd.exe	taskkill.exe
PID 2056 wrote to memory of 2748	2056	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe
"C:\Users\Admin\AppData\Local\Temp\4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 452
2⤵
- Program crash
PID:4584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 768
2⤵
- Program crash
PID:2180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 776
2⤵
- Program crash
PID:808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 796
2⤵
- Program crash
PID:2868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 856
2⤵
- Program crash
PID:3276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 928
2⤵
- Program crash
PID:2708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 1004
2⤵
- Program crash
PID:3844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 1052
2⤵
- Program crash
PID:4832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 1540
2⤵
- Program crash
PID:2148

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2056

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "4f7bf1545e6acda0f4911fc757c692d84d13fcc37ba54590a4e2b9cc98a46803.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 1644
2⤵
- Program crash
PID:1376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4640 -ip 4640
1⤵
PID:4460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4640 -ip 4640
1⤵
PID:4428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4640 -ip 4640
1⤵
PID:1512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4640 -ip 4640
1⤵
PID:5052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4640 -ip 4640
1⤵
PID:400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4640 -ip 4640
1⤵
PID:468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4640 -ip 4640
1⤵
PID:2440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4640 -ip 4640
1⤵
PID:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 4640 -ip 4640
1⤵
PID:1668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4640 -ip 4640
1⤵
PID:1884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\WOBB13N1\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4640-1-0x00000000021F0000-0x00000000022F0000-memory.dmp

Filesize
1024KB

Download
memory/4640-2-0x0000000002140000-0x000000000217C000-memory.dmp

Filesize
240KB

Download
memory/4640-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4640-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4640-14-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download
memory/4640-18-0x00000000021F0000-0x00000000022F0000-memory.dmp

Filesize
1024KB

Download
memory/4640-20-0x0000000002140000-0x000000000217C000-memory.dmp

Filesize
240KB

Download
memory/4640-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4640-34-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download
memory/4640-36-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4640-35-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads