gcleaner | 295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1

General

Target

295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.exe
Size

400KB
MD5

5a6081e8627ebc97257b9f45f9b44732
SHA1

e983cc9a7fa454d11fe6707fd9ff9e3e8e928a15
SHA256

295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1
SHA512

34419db8f6d08d2c86c98f2fe21231fa14449c66eb8461bb322d8a0122b24d35befd7e2022c013130860bc79460307f88084ef9a7ea855a714b974acefb4f771
SSDEEP

6144:cTzG3+fP4fMy94Obs6CJrsWaF0tnj+UomfJ7mjKRA:cTzG3+fP4fMy9473JNaFqjWmfJ7i

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

45.91.200.135

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.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
3280	620	WerFault.exe	82
5032	620	WerFault.exe	82
1500	620	WerFault.exe	82
3632	620	WerFault.exe	82
4896	620	WerFault.exe	82
2144	620	WerFault.exe	82
3620	620	WerFault.exe	82
412	620	WerFault.exe	82
436	620	WerFault.exe	82
4892	620	WerFault.exe	82

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	295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1652	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1652	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 620 wrote to memory of 3600	620	295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.exe	115
PID 620 wrote to memory of 3600	620	295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.exe	115
PID 620 wrote to memory of 3600	620	295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.exe	115
PID 3600 wrote to memory of 1652	3600	cmd.exe	119
PID 3600 wrote to memory of 1652	3600	cmd.exe	119
PID 3600 wrote to memory of 1652	3600	cmd.exe	119

C:\Users\Admin\AppData\Local\Temp\295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.exe
"C:\Users\Admin\AppData\Local\Temp\295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:620
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 456
  2⤵
  - Program crash
  PID:3280
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 764
  2⤵
  - Program crash
  PID:5032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 804
  2⤵
  - Program crash
  PID:1500
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 844
  2⤵
  - Program crash
  PID:3632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 880
  2⤵
  - Program crash
  PID:4896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 784
  2⤵
  - Program crash
  PID:2144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 784
  2⤵
  - Program crash
  PID:3620
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 1032
  2⤵
  - Program crash
  PID:412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 1640
  2⤵
  - Program crash
  PID:436
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3600
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "295ee98dd61e88593636362a4646a88588dad3412c0ec120c9431c60fb0dd1d1.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1652
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 620 -s 1604
  2⤵
  - Program crash
  PID:4892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 620 -ip 620
1⤵
PID:3404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 620 -ip 620
1⤵
PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 620 -ip 620
1⤵
PID:4932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 620 -ip 620
1⤵
PID:2932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 620 -ip 620
1⤵
PID:4032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 620 -ip 620
1⤵
PID:4336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 620 -ip 620
1⤵
PID:2984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 620 -ip 620
1⤵
PID:536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 620 -ip 620
1⤵
PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 620 -ip 620
1⤵
PID:2008

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\BOIFDBOU\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/620-1-0x0000000000720000-0x0000000000820000-memory.dmp

Filesize
1024KB

Download
memory/620-2-0x0000000002340000-0x000000000237B000-memory.dmp

Filesize
236KB

Download
memory/620-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/620-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/620-13-0x0000000000720000-0x0000000000820000-memory.dmp

Filesize
1024KB

Download
memory/620-15-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/620-16-0x0000000002340000-0x000000000237B000-memory.dmp

Filesize
236KB

Download
memory/620-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/620-27-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/620-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/620-35-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download

Analysis

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