gcleaner | d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641

General

Target

d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe
Size

2.5MB
MD5

6206dea2bf6196957d704e499e2f4218
SHA1

388dbc7a4b26f64ee1ede8c37bf969e1bcef7ed2
SHA256

d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641
SHA512

e3d1ce8f7130756f81c8b579c4eb7ad0187e7c33768e0c5250c339dce0342ebf0a274e696c1af97970c87eee43d65ee74683a06418abdc808b913aedfb51ba75
SSDEEP

49152:JI2fq0JHJerQ0ERLbhTcDiJL8Psy2ZSL5W/KwX5:JIx0JHJerQ0ERBTcDiJQPsy2ZSL5W/Ke

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

816 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

XVkfOXW.exe

pid process

900 XVkfOXW.exe
Loads dropped DLL 1 IoCs

Processes:

d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe

pid process

1776 d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1256 taskkill.exe

pid	process
816	cmd.exe

pid	process
900	XVkfOXW.exe

pid	process
1256	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe

pid	process
1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe
1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe
1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1256 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1256	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.execmd.exe

description	pid	process	target process
PID 1776 wrote to memory of 900	1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe	XVkfOXW.exe
PID 1776 wrote to memory of 900	1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe	XVkfOXW.exe
PID 1776 wrote to memory of 900	1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe	XVkfOXW.exe
PID 1776 wrote to memory of 900	1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe	XVkfOXW.exe
PID 1776 wrote to memory of 816	1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe	cmd.exe
PID 1776 wrote to memory of 816	1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe	cmd.exe
PID 1776 wrote to memory of 816	1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe	cmd.exe
PID 1776 wrote to memory of 816	1776	d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe	cmd.exe
PID 816 wrote to memory of 1256	816	cmd.exe	taskkill.exe
PID 816 wrote to memory of 1256	816	cmd.exe	taskkill.exe
PID 816 wrote to memory of 1256	816	cmd.exe	taskkill.exe
PID 816 wrote to memory of 1256	816	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe
"C:\Users\Admin\AppData\Local\Temp\d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\XVkfOXW.exe
  2⤵
  - Executes dropped EXE
  PID:900
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:816
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "d60d04f849927888e4b416e3f5064f518d0cbef7e91cc67d3d9e8824bfaad641.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1256

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\UOYUJSME\dll[2].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\XVkfOXW.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\XVkfOXW.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/1776-54-0x0000000000400000-0x0000000001487000-memory.dmp

Filesize
16.5MB

Download
memory/1776-55-0x0000000000400000-0x0000000001487000-memory.dmp

Filesize
16.5MB

Download
memory/1776-56-0x0000000000400000-0x0000000001487000-memory.dmp

Filesize
16.5MB

Download
memory/1776-57-0x0000000000400000-0x0000000001487000-memory.dmp

Filesize
16.5MB

Download
memory/1776-63-0x0000000000400000-0x0000000001487000-memory.dmp

Filesize
16.5MB

Download
memory/1776-67-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/1776-71-0x0000000000400000-0x0000000001487000-memory.dmp

Filesize
16.5MB

Download
memory/1776-85-0x0000000000400000-0x0000000001487000-memory.dmp

Filesize
16.5MB

Download

Analysis

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