gcleaner | 37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
27/05/2024, 15:57

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General

Target
37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
Size 345KB
Sample240527-tecqrahf3x
SHA256 37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27
MD5 7578297a8580620962ff86f96df1de95
SHA1 22771b59a8dfba6c3b6fa091133cef229f7296f3
SHA512 7343524ec5cfea431981fa61eafa9b6878b2409ea607413cd3dba68b85b905f87d07ca45eba53d8ed4984a4bd3014dd271b5d81270c11dc408a7867d4fe4b87c
SSDEEP 6144:ICAp7usNvlYXTX9ZTB1wwcB1niwxPKdLi/:VA5uUkfTB1wwcLiwFK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

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

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

pid	pid_target	Process	procid_target
2596	4092	WerFault.exe	81
3048	4092	WerFault.exe	81
4532	4092	WerFault.exe	81
732	4092	WerFault.exe	81
3688	4092	WerFault.exe	81
4640	4092	WerFault.exe	81
4280	4092	WerFault.exe	81
1168	4092	WerFault.exe	81
1784	4092	WerFault.exe	81
1532	4092	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
1548	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1548	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 4820	4092	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	113
PID 4092 wrote to memory of 4820	4092	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	113
PID 4092 wrote to memory of 4820	4092	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	113
PID 4820 wrote to memory of 1548	4820	cmd.exe	117
PID 4820 wrote to memory of 1548	4820	cmd.exe	117
PID 4820 wrote to memory of 1548	4820	cmd.exe	117

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

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

advdlc[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WOBB13N1\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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

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

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

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

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

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

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

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

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

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

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

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memory/4092-35-0x0000000000400000-0x0000000001FA2000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads