gcleaner | 11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3

General

Target

11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.exe
Size

299KB
MD5

77063c6ba035403fe79008bf57979161
SHA1

b308069ef7dd15702e4722fecdb7101a0d37f320
SHA256

11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3
SHA512

14e4ca692da5cdd73ee6452940f79d40853bbecac64dc3d73f2a66001f8738fcbd548ac7836719620e4ec3c7927b597c29f90c107dc51c1d9469d867da37809c
SSDEEP

6144:vbDEceeoS2fmwt7X9lbJ97wV9aA8dBoTce9/Me0Vdh1GQ:vPEnLS2fmwtzV9s9angHYVdz

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3504	1288	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	11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.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
1408	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1408	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 3064	1288	11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.exe	95
PID 1288 wrote to memory of 3064	1288	11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.exe	95
PID 1288 wrote to memory of 3064	1288	11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.exe	95
PID 3064 wrote to memory of 1408	3064	cmd.exe	99
PID 3064 wrote to memory of 1408	3064	cmd.exe	99
PID 3064 wrote to memory of 1408	3064	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.exe
"C:\Users\Admin\AppData\Local\Temp\11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "11730302b6f6bad37449b53c16ef8cf15d59fd5337bea1371da167ebffc8bbe3.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1288 -s 1760
  2⤵
  - Program crash
  PID:3504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1288 -ip 1288
1⤵
PID:1752

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\H9MX5QVK\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1288-2-0x0000000000530000-0x000000000056B000-memory.dmp

Filesize
236KB

Download
memory/1288-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/1288-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1288-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1288-13-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/1288-15-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1288-16-0x0000000000530000-0x000000000056B000-memory.dmp

Filesize
236KB

Download
memory/1288-18-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1288-29-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1288-35-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1288-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download

Analysis

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