gcleaner | c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c

General

Target
c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c.exe
Size 282KB
Sample240622-nnentazfpn
SHA256 c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c
MD5 30c08d35b8313b68f98506e6e050d8aa
SHA1 840d648bf39050078301374b22ccfb00881c84f4
SHA512 786da950b8e57f769dbb1036268c0c137eaf53dab0fe20b158521f0a921c8b58f07b7aa80d05919beb9dac713c5d48a8bd3f209fcc033cf81ece84a8c70ef16d
SSDEEP 6144:MenNKz5S8ALzqLL594MMO5Uh5MufHPtBcUD9TdVVF23M:MenNKzj82rxY5MaVBcUDda3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90
5.42.64.56
185.172.128.69

Signatures

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

System Information Discovery
T1082

Program crash 11 IoCs

pid	pid_target	Process	procid_target
3940	4808	WerFault.exe	77
4616	4808	WerFault.exe	77
3544	4808	WerFault.exe	77
2632	4808	WerFault.exe	77
944	4808	WerFault.exe	77
4900	4808	WerFault.exe	77
3712	4808	WerFault.exe	77
2348	4808	WerFault.exe	77
2740	4808	WerFault.exe	77
1088	4808	WerFault.exe	77
2220	4808	WerFault.exe	77

Kills process with taskkill 1 IoCs

evasion

pid	Process
4304	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4304	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 904	4808	c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c.exe	99
PID 4808 wrote to memory of 904	4808	c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c.exe	99
PID 4808 wrote to memory of 904	4808	c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c.exe	99
PID 904 wrote to memory of 4304	904	cmd.exe	102
PID 904 wrote to memory of 4304	904	cmd.exe	102
PID 904 wrote to memory of 4304	904	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c.exe
"C:\Users\Admin\AppData\Local\Temp\c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 472
  2⤵
  - Program crash
  PID:3940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 532
  2⤵
  - Program crash
  PID:4616
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 780
  2⤵
  - Program crash
  PID:3544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 800
  2⤵
  - Program crash
  PID:2632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 836
  2⤵
  - Program crash
  PID:944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 852
  2⤵
  - Program crash
  PID:4900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 984
  2⤵
  - Program crash
  PID:3712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 1068
  2⤵
  - Program crash
  PID:2348
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 1412
  2⤵
  - Program crash
  PID:2740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 1700
  2⤵
  - Program crash
  PID:1088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:904
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "c4c8ed1f36cc7c964d45fe8581f9d44a2b71df2d3e898710191a1cdc9776d01c.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4304
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 1276
  2⤵
  - Program crash
  PID:2220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4808 -ip 4808
1⤵
PID:1040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4808 -ip 4808
1⤵
PID:3768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4808 -ip 4808
1⤵
PID:1980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4808 -ip 4808
1⤵
PID:5092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4808 -ip 4808
1⤵
PID:1844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4808 -ip 4808
1⤵
PID:4764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4808 -ip 4808
1⤵
PID:3948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4808 -ip 4808
1⤵
PID:4056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4808 -ip 4808
1⤵
PID:1496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4808 -ip 4808
1⤵
PID:2952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4808 -ip 4808
1⤵
PID:1272

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

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Downloads

advdlc[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZTEP9QHJ\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

memory/4808-2-0x0000000002160000-0x000000000219C000-memory.dmp

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memory/4808-3-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/4808-1-0x0000000000560000-0x0000000000660000-memory.dmp

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memory/4808-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/4808-14-0x0000000000400000-0x0000000000451000-memory.dmp

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memory/4808-22-0x0000000000560000-0x0000000000660000-memory.dmp

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memory/4808-23-0x0000000002160000-0x000000000219C000-memory.dmp

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memory/4808-25-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/4808-34-0x0000000000400000-0x0000000000451000-memory.dmp

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memory/4808-35-0x0000000000400000-0x0000000000440000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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