gcleaner | 37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27

General

Target

37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
Size

345KB
MD5

7578297a8580620962ff86f96df1de95
SHA1

22771b59a8dfba6c3b6fa091133cef229f7296f3
SHA256

37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27
SHA512

7343524ec5cfea431981fa61eafa9b6878b2409ea607413cd3dba68b85b905f87d07ca45eba53d8ed4984a4bd3014dd271b5d81270c11dc408a7867d4fe4b87c
SSDEEP

6144:ICAp7usNvlYXTX9ZTB1wwcB1niwxPKdLi/:VA5uUkfTB1wwcLiwFK

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:

37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.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
2596	4092	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
3048	4092	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
4532	4092	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
732	4092	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
3688	4092	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
4640	4092	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
4280	4092	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
1168	4092	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
1784	4092	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
1532	4092	WerFault.exe	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1548 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1548 taskkill.exe

pid	process
1548	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1548	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.execmd.exe

description	pid	process	target process
PID 4092 wrote to memory of 4820	4092	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	cmd.exe
PID 4092 wrote to memory of 4820	4092	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	cmd.exe
PID 4092 wrote to memory of 4820	4092	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	cmd.exe
PID 4820 wrote to memory of 1548	4820	cmd.exe	taskkill.exe
PID 4820 wrote to memory of 1548	4820	cmd.exe	taskkill.exe
PID 4820 wrote to memory of 1548	4820	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
"C:\Users\Admin\AppData\Local\Temp\37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 452
2⤵
- Program crash
PID:2596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 764
2⤵
- Program crash
PID:3048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 800
2⤵
- Program crash
PID:4532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 816
2⤵
- Program crash
PID:732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 824
2⤵
- Program crash
PID:3688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 916
2⤵
- Program crash
PID:4640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 1004
2⤵
- Program crash
PID:4280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 1160
2⤵
- Program crash
PID:1168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 1708
2⤵
- Program crash
PID:1784

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4820

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 492
2⤵
- Program crash
PID:1532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4092 -ip 4092
1⤵
PID:400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4092 -ip 4092
1⤵
PID:900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4092 -ip 4092
1⤵
PID:436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4092 -ip 4092
1⤵
PID:4472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4092 -ip 4092
1⤵
PID:2124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4092 -ip 4092
1⤵
PID:2344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4092 -ip 4092
1⤵
PID:3848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4092 -ip 4092
1⤵
PID:3036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4092 -ip 4092
1⤵
PID:2216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4092 -ip 4092
1⤵
PID:2152

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

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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/4092-9-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4092-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4092-1-0x00000000020B0000-0x00000000021B0000-memory.dmp

Filesize
1024KB

Download
memory/4092-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4092-14-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download
memory/4092-2-0x0000000002330000-0x000000000236C000-memory.dmp

Filesize
240KB

Download
memory/4092-22-0x0000000002330000-0x000000000236C000-memory.dmp

Filesize
240KB

Download
memory/4092-21-0x00000000020B0000-0x00000000021B0000-memory.dmp

Filesize
1024KB

Download
memory/4092-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4092-34-0x0000000000400000-0x0000000001FA2000-memory.dmp

Filesize
27.6MB

Download
memory/4092-36-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4092-35-0x0000000000400000-0x0000000001FA2000-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