gcleaner | 9b1a0d63c7ab084c006aa4c7d7ed7c43ebaa5455ba9630f152d8c46f5e1a553b

General

Target

2ecdac220249b69a103a73a3a3d1f450N.exe
Size

394KB
MD5

2ecdac220249b69a103a73a3a3d1f450
SHA1

cc00bbd208c17b66339ff34e3848c0b9f0c67fa4
SHA256

9b1a0d63c7ab084c006aa4c7d7ed7c43ebaa5455ba9630f152d8c46f5e1a553b
SHA512

2b900a2b9c13db5c1e2d7cbcb218eb8f4656c3d93c06d44ad9674a7e1f4f353a626838bdb250f109bf4c0f6d40f8d86d1d83d8bdad1004ec2f5ff2f3eab29b43
SSDEEP

12288:aLw1pykL6YwD3ya7UBw/pdAfMggXrVzeO:aVkL6YwD39ympGfMnBz

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

g-clean.in

gclean.biz

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 5 IoCs

resource	yara_rule
behavioral2/memory/2416-2-0x00000000021E0000-0x000000000222E000-memory.dmp	family_onlylogger
behavioral2/memory/2416-3-0x0000000000400000-0x0000000000452000-memory.dmp	family_onlylogger
behavioral2/memory/2416-4-0x0000000000400000-0x0000000000474000-memory.dmp	family_onlylogger
behavioral2/memory/2416-5-0x00000000021E0000-0x000000000222E000-memory.dmp	family_onlylogger
behavioral2/memory/2416-6-0x0000000000400000-0x0000000000452000-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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2ecdac220249b69a103a73a3a3d1f450N.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
2476	2416	WerFault.exe	87
4256	2416	WerFault.exe	87
4216	2416	WerFault.exe	87
4676	2416	WerFault.exe	87
1868	2416	WerFault.exe	87
2124	2416	WerFault.exe	87
4752	2416	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2ecdac220249b69a103a73a3a3d1f450N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2328	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2328	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2640	2416	2ecdac220249b69a103a73a3a3d1f450N.exe	107
PID 2416 wrote to memory of 2640	2416	2ecdac220249b69a103a73a3a3d1f450N.exe	107
PID 2416 wrote to memory of 2640	2416	2ecdac220249b69a103a73a3a3d1f450N.exe	107
PID 2640 wrote to memory of 2328	2640	cmd.exe	111
PID 2640 wrote to memory of 2328	2640	cmd.exe	111
PID 2640 wrote to memory of 2328	2640	cmd.exe	111

C:\Users\Admin\AppData\Local\Temp\2ecdac220249b69a103a73a3a3d1f450N.exe
"C:\Users\Admin\AppData\Local\Temp\2ecdac220249b69a103a73a3a3d1f450N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 688
  2⤵
  - Program crash
  PID:2476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 784
  2⤵
  - Program crash
  PID:4256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 920
  2⤵
  - Program crash
  PID:4216
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 724
  2⤵
  - Program crash
  PID:4676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 724
  2⤵
  - Program crash
  PID:1868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 788
  2⤵
  - Program crash
  PID:2124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "2ecdac220249b69a103a73a3a3d1f450N.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2ecdac220249b69a103a73a3a3d1f450N.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "2ecdac220249b69a103a73a3a3d1f450N.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2328
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 976
  2⤵
  - Program crash
  PID:4752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2416 -ip 2416
1⤵
PID:1604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2416 -ip 2416
1⤵
PID:4832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2416 -ip 2416
1⤵
PID:904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2416 -ip 2416
1⤵
PID:1800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2416 -ip 2416
1⤵
PID:744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2416 -ip 2416
1⤵
PID:2440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2416 -ip 2416
1⤵
PID:4596

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2416-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2416-2-0x00000000021E0000-0x000000000222E000-memory.dmp

Filesize
312KB

Download
memory/2416-3-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2416-4-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2416-5-0x00000000021E0000-0x000000000222E000-memory.dmp

Filesize
312KB

Download
memory/2416-6-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

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