gcleaner | ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed

General

Target

ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe
Size

324KB
MD5

e758217722d30aa504dca0ca929fb6b8
SHA1

ae125b76c669d03a776df574175b3aef2de14935
SHA256

ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed
SHA512

29f9e327ef87d18415a2140ce9c325173575f7b934c0ba88c7bcdbd0d44348658dbd1ad91577b8d3fa33ba6f4db88e2248675385e9b5f636ed7e5f22172d2093
SSDEEP

6144:uADahWrg8roVp55fFzaLGJ0qa1ifMofts/MMtx0Vdh1tQ:uYagk8rwp55fF2LGJA13MtAQVdz

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2372 set thread context of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4688	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4688	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86
PID 2372 wrote to memory of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86
PID 2372 wrote to memory of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86
PID 2372 wrote to memory of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86
PID 2372 wrote to memory of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86
PID 2372 wrote to memory of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86
PID 2372 wrote to memory of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86
PID 2372 wrote to memory of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86
PID 2372 wrote to memory of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86
PID 2372 wrote to memory of 4564	2372	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	86
PID 4564 wrote to memory of 4044	4564	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	96
PID 4564 wrote to memory of 4044	4564	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	96
PID 4564 wrote to memory of 4044	4564	ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe	96
PID 4044 wrote to memory of 4688	4044	cmd.exe	98
PID 4044 wrote to memory of 4688	4044	cmd.exe	98
PID 4044 wrote to memory of 4688	4044	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe
"C:\Users\Admin\AppData\Local\Temp\ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe
  "C:\Users\Admin\AppData\Local\Temp\ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4564
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c taskkill /im "ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4044
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /im "ce7b5416c09c7591e9d65fd4cec9b6ad08e23ec725f3acb007e8a8addf0341ed.exe" /f
      4⤵
      System Location Discovery: System Language Discovery
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:4688

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\VNN58CU3\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2372-1-0x00000000004A0000-0x00000000005A0000-memory.dmp

Filesize
1024KB

Download
memory/2372-2-0x0000000002190000-0x00000000021CB000-memory.dmp

Filesize
236KB

Download
memory/4564-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/4564-4-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/4564-5-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/4564-7-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/4564-12-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4564-18-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/4564-31-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/4564-39-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download

Analysis

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