gcleaner | f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9

General

Target

f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9.exe
Size

311KB
MD5

c97388da696eb8faa014fe1bfd156874
SHA1

855a68cc100fae5e51a9cb1f79c80ce0989e00ed
SHA256

f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9
SHA512

d01f4d789c2102d8d50b237360dba661a0970c8625dacaf36385792eb2723cd7301642f8d41fb15f90393c7c4b792a585ccc6b6bc3020a3e96f41d0d6178af4d
SSDEEP

3072:ukqx3j3DBWYiAVf/45nW6q8eEaoHiskQIUITJBKSvB4bqq5jS3Me308TXGs/N:uj3pndf/2W6gEaokhBPvBzee35V/

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

185.172.128.69

Attributes

url_path
/advdlc.php

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
4968	3476	WerFault.exe	80
760	3476	WerFault.exe	80
4856	3476	WerFault.exe	80
4256	3476	WerFault.exe	80
1708	3476	WerFault.exe	80
3832	3476	WerFault.exe	80
2432	3476	WerFault.exe	80
2096	3476	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
4424	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4424	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3476 wrote to memory of 240	3476	f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9.exe	98
PID 3476 wrote to memory of 240	3476	f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9.exe	98
PID 3476 wrote to memory of 240	3476	f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9.exe	98
PID 240 wrote to memory of 4424	240	cmd.exe	101
PID 240 wrote to memory of 4424	240	cmd.exe	101
PID 240 wrote to memory of 4424	240	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9.exe
"C:\Users\Admin\AppData\Local\Temp\f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 772
  2⤵
  - Program crash
  PID:4968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 812
  2⤵
  - Program crash
  PID:760
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 832
  2⤵
  - Program crash
  PID:4856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 800
  2⤵
  - Program crash
  PID:4256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 952
  2⤵
  - Program crash
  PID:1708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 956
  2⤵
  - Program crash
  PID:3832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 1432
  2⤵
  - Program crash
  PID:2432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:240
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "f03e8b7cb69fb4f0c4547257a4952a0c5be8f76dff3fddd0d161b099480df0b9.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 1532
  2⤵
  - Program crash
  PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3476 -ip 3476
1⤵
PID:1680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3476 -ip 3476
1⤵
PID:2952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3476 -ip 3476
1⤵
PID:3620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3476 -ip 3476
1⤵
PID:4544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3476 -ip 3476
1⤵
PID:4892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3476 -ip 3476
1⤵
PID:3508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3476 -ip 3476
1⤵
PID:4696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3476 -ip 3476
1⤵
PID:2948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\INetCache\IE\RSBQFUNA\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3476-1-0x0000000002130000-0x0000000002230000-memory.dmp

Filesize
1024KB

Download
memory/3476-2-0x0000000003EE0000-0x0000000003F0D000-memory.dmp

Filesize
180KB

Download
memory/3476-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3476-8-0x0000000000400000-0x0000000002094000-memory.dmp

Filesize
28.6MB

Download
memory/3476-12-0x0000000003EE0000-0x0000000003F0D000-memory.dmp

Filesize
180KB

Download
memory/3476-15-0x0000000002130000-0x0000000002230000-memory.dmp

Filesize
1024KB

Download
memory/3476-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3476-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3476-22-0x0000000000400000-0x0000000002094000-memory.dmp

Filesize
28.6MB

Download

Analysis

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