gcleaner | 5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25

General

Target
5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
Size 369KB
Sample240528-fectvsgb62
SHA256 5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25
MD5 d13d52fa632b4c6606b7874fc6733e28
SHA1 091b649bdd1ee951face5c07adde64fe29838216
SHA512 17e0fc87f0d4d0024d210d267aa9aeadf1bbab40933fef040a19a34b7cb86d0fe93c61e060971e81209807ee4807236500194bf6aeb483cac4492a995af6c165
SSDEEP 6144:VST5HihCi8OLdnmSzu2f5JeEhNBlG7LTlcM:VGHni8OpnmSVe5VcM
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 10 IoCs

pid	pid_target	Process	procid_target
3632	2400	WerFault.exe	77
3128	2400	WerFault.exe	77
4700	2400	WerFault.exe	77
1852	2400	WerFault.exe	77
3952	2400	WerFault.exe	77
2064	2400	WerFault.exe	77
2540	2400	WerFault.exe	77
3992	2400	WerFault.exe	77
4112	2400	WerFault.exe	77
4212	2400	WerFault.exe	77

Kills process with taskkill 1 IoCs

evasion

pid	Process
1232	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1232	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 1904	2400	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe	98
PID 2400 wrote to memory of 1904	2400	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe	98
PID 2400 wrote to memory of 1904	2400	5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe	98
PID 1904 wrote to memory of 1232	1904	cmd.exe	101
PID 1904 wrote to memory of 1232	1904	cmd.exe	101
PID 1904 wrote to memory of 1232	1904	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe
"C:\Users\Admin\AppData\Local\Temp\5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 480
  2⤵
  - Program crash
  PID:3632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 532
  2⤵
  - Program crash
  PID:3128
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 788
  2⤵
  - Program crash
  PID:4700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 800
  2⤵
  - Program crash
  PID:1852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 788
  2⤵
  - Program crash
  PID:3952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 872
  2⤵
  - Program crash
  PID:2064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 968
  2⤵
  - Program crash
  PID:2540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 1068
  2⤵
  - Program crash
  PID:3992
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 1640
  2⤵
  - Program crash
  PID:4112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1904
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "5e8ba08b4ed7c18743fa6408c6aba9995d6073a38a6e8bf4f20f962aa84e9b25.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 1592
  2⤵
  - Program crash
  PID:4212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2400 -ip 2400
1⤵
PID:2864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2400 -ip 2400
1⤵
PID:4408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2400 -ip 2400
1⤵
PID:4824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2400 -ip 2400
1⤵
PID:2904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2400 -ip 2400
1⤵
PID:2428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2400 -ip 2400
1⤵
PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2400 -ip 2400
1⤵
PID:2900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2400 -ip 2400
1⤵
PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2400 -ip 2400
1⤵
PID:4636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 2400 -ip 2400
1⤵
PID:3436

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\C76012RU\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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memory/2400-1-0x0000000002D40000-0x0000000002E40000-memory.dmp

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memory/2400-3-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2400-2-0x00000000049C0000-0x00000000049FC000-memory.dmp

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memory/2400-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/2400-15-0x0000000000400000-0x0000000002CBA000-memory.dmp

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memory/2400-22-0x0000000002D40000-0x0000000002E40000-memory.dmp

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memory/2400-23-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2400-34-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2400-33-0x0000000000400000-0x0000000002CBA000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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