gcleaner | d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85

General

Target

d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.exe
Size

399KB
MD5

39507a6dceea23775ab99357556c12f5
SHA1

1afcb7a4139677d360d3e57469ed9d0d0c5acfa7
SHA256

d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85
SHA512

fcc3b49b29742c32862dadd99c25fc5297c24670a5c66daaecce8dc605ac74efc11ceaa74a6e13551c29f52a46ec052bfcc3f53193d8676114cc2a6e4e78cb91
SSDEEP

6144:OUesHUf0e6TMyrMo5aTyTWP/enp/S4ocAd1RvBooBcy/6jmRnHw:OUesHUfP6TjYIQyTW3EvCdDBoe/6jmt

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	d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.exe

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

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
2124	3880	WerFault.exe	82
1836	3880	WerFault.exe	82
1952	3880	WerFault.exe	82
4544	3880	WerFault.exe	82
2736	3880	WerFault.exe	82
536	3880	WerFault.exe	82
4680	3880	WerFault.exe	82
3980	3880	WerFault.exe	82
1524	3880	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	d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.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
2652	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2652	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3880 wrote to memory of 3652	3880	d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.exe	111
PID 3880 wrote to memory of 3652	3880	d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.exe	111
PID 3880 wrote to memory of 3652	3880	d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.exe	111
PID 3652 wrote to memory of 2652	3652	cmd.exe	115
PID 3652 wrote to memory of 2652	3652	cmd.exe	115
PID 3652 wrote to memory of 2652	3652	cmd.exe	115

C:\Users\Admin\AppData\Local\Temp\d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.exe
"C:\Users\Admin\AppData\Local\Temp\d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 452
  2⤵
  - Program crash
  PID:2124
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 764
  2⤵
  - Program crash
  PID:1836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 804
  2⤵
  - Program crash
  PID:1952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 796
  2⤵
  - Program crash
  PID:4544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 856
  2⤵
  - Program crash
  PID:2736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 928
  2⤵
  - Program crash
  PID:536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 1004
  2⤵
  - Program crash
  PID:4680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 1560
  2⤵
  - Program crash
  PID:3980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3652
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "d47eb960d7d9d59251d4834336cc412ec57845c396ba053a1a7da44c21217f85.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2652
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 492
  2⤵
  - Program crash
  PID:1524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3880 -ip 3880
1⤵
PID:3136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3880 -ip 3880
1⤵
PID:2528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3880 -ip 3880
1⤵
PID:5080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3880 -ip 3880
1⤵
PID:1756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3880 -ip 3880
1⤵
PID:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3880 -ip 3880
1⤵
PID:1480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3880 -ip 3880
1⤵
PID:2320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3880 -ip 3880
1⤵
PID:3636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3880 -ip 3880
1⤵
PID:1036

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/3880-1-0x0000000002540000-0x0000000002640000-memory.dmp

Filesize
1024KB

Download
memory/3880-2-0x00000000041C0000-0x00000000041FB000-memory.dmp

Filesize
236KB

Download
memory/3880-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3880-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3880-13-0x0000000002540000-0x0000000002640000-memory.dmp

Filesize
1024KB

Download
memory/3880-16-0x00000000041C0000-0x00000000041FB000-memory.dmp

Filesize
236KB

Download
memory/3880-15-0x0000000000400000-0x000000000247C000-memory.dmp

Filesize
32.5MB

Download
memory/3880-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3880-27-0x0000000000400000-0x000000000247C000-memory.dmp

Filesize
32.5MB

Download
memory/3880-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3880-35-0x0000000000400000-0x000000000247C000-memory.dmp

Filesize
32.5MB

Download

Analysis

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