gcleaner | d9cdd267e3c00ae4f70e60a45aa03f22b1a59b42526a692d0e5bde6b5f1b99d4

Resubmissions

07-01-2024 18:07

240107-wqj1bacef6 10

15-01-2022 08:36

220115-khlcmadggr 10

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2024 18:07

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General

Target

b11fa73625d6cba3dd6cf98467aea533.exe
Size

419KB
MD5

b11fa73625d6cba3dd6cf98467aea533
SHA1

004d3169fb9b2b6daeec6425f6da98c99a3b63e0
SHA256

d9cdd267e3c00ae4f70e60a45aa03f22b1a59b42526a692d0e5bde6b5f1b99d4
SHA512

2bba5cfaeec13bda9ffb03a16d1c2af9d85be0ec13b00d9f79e3c4ffbd334a7db00addb5b52b4f89a84a8a57349e29115d93532f866d37b9914c6b832247fdea
SSDEEP

6144:umHZ39YkgRaYfIIeWmfVjFsSX2/vwWJwQuuPkfwkaZeRJE1I7EOVqcEyrIXs:umHZ/cqx7sSX2nmQuSk7n8I4OVAyrI

Score

10^/10

gcleaner onlylogger loader

Malware Config

Extracted

Family

gcleaner

web-stat.biz

privatevolume.bi

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger

OnlyLogger payload 4 IoCs

resource	yara_rule
behavioral3/memory/3672-2-0x00000000022E0000-0x000000000232C000-memory.dmp	family_onlylogger
behavioral3/memory/3672-3-0x0000000000400000-0x0000000000578000-memory.dmp	family_onlylogger
behavioral3/memory/3672-5-0x00000000022E0000-0x000000000232C000-memory.dmp	family_onlylogger
behavioral3/memory/3672-4-0x0000000000400000-0x0000000000578000-memory.dmp	family_onlylogger

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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	b11fa73625d6cba3dd6cf98467aea533.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 7 IoCs

pid	pid_target	Process	procid_target
2800	3672	WerFault.exe	88
4644	3672	WerFault.exe	88
1472	3672	WerFault.exe	88
1464	3672	WerFault.exe	88
2128	3672	WerFault.exe	88
1084	3672	WerFault.exe	88
3632	3672	WerFault.exe	88

Kills process with taskkill 1 IoCs

evasion

pid	Process
3852	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3852	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3672 wrote to memory of 2496	3672	b11fa73625d6cba3dd6cf98467aea533.exe	110
PID 3672 wrote to memory of 2496	3672	b11fa73625d6cba3dd6cf98467aea533.exe	110
PID 3672 wrote to memory of 2496	3672	b11fa73625d6cba3dd6cf98467aea533.exe	110
PID 2496 wrote to memory of 3852	2496	cmd.exe	105
PID 2496 wrote to memory of 3852	2496	cmd.exe	105
PID 2496 wrote to memory of 3852	2496	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\b11fa73625d6cba3dd6cf98467aea533.exe
"C:\Users\Admin\AppData\Local\Temp\b11fa73625d6cba3dd6cf98467aea533.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 688
  2⤵
  - Program crash
  PID:2800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 784
  2⤵
  - Program crash
  PID:4644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 920
  2⤵
  - Program crash
  PID:1472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 920
  2⤵
  - Program crash
  PID:1464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 920
  2⤵
  - Program crash
  PID:2128
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 948
  2⤵
  - Program crash
  PID:1084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 980
  2⤵
  - Program crash
  PID:3632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "b11fa73625d6cba3dd6cf98467aea533.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b11fa73625d6cba3dd6cf98467aea533.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3672 -ip 3672
1⤵
PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3672 -ip 3672
1⤵
PID:4724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3672 -ip 3672
1⤵
PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3672 -ip 3672
1⤵
PID:2664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3672 -ip 3672
1⤵
PID:4092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 3672 -ip 3672
1⤵
PID:3932

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "b11fa73625d6cba3dd6cf98467aea533.exe" /f
1⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3672 -ip 3672
1⤵
PID:3036

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

Replay Monitor

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Downloads

memory/3672-2-0x00000000022E0000-0x000000000232C000-memory.dmp

Filesize
304KB

Download
memory/3672-1-0x0000000000840000-0x0000000000940000-memory.dmp

Filesize
1024KB

Download
memory/3672-3-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/3672-5-0x00000000022E0000-0x000000000232C000-memory.dmp

Filesize
304KB

Download
memory/3672-4-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download