gcleaner | b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff

General

Target

b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff.exe
Size

367KB
MD5

bff6423740c8b46aab327108a05c2753
SHA1

167b1a96867aadfaee6093d89dcdf095745339c6
SHA256

b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff
SHA512

b24ca5f68c96543e41f02566cc8e826cf4d756cbcf896947cf47dd4d5841ec50f760c3962a80f96de3826988c14ec274a9c021b22ecbc37ce0bc1f36cd16c452
SSDEEP

3072:1LjTho9/yTx0aB2LkTkLta8GRpd7hSGnAmt3bUFLsVR/p9pGu5cyIlU0:1LjThwQxZ2Lkg5mrNSUq+p96s

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

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
3428	4816	WerFault.exe	78
968	4816	WerFault.exe	78
2872	4816	WerFault.exe	78
3572	4816	WerFault.exe	78
944	4816	WerFault.exe	78
4864	4816	WerFault.exe	78
4868	4816	WerFault.exe	78
4760	4816	WerFault.exe	78
2412	4816	WerFault.exe	78

Kills process with taskkill 1 IoCs

evasion

pid	Process
1876	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1876	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 2132	4816	b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff.exe	98
PID 4816 wrote to memory of 2132	4816	b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff.exe	98
PID 4816 wrote to memory of 2132	4816	b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff.exe	98
PID 2132 wrote to memory of 1876	2132	cmd.exe	102
PID 2132 wrote to memory of 1876	2132	cmd.exe	102
PID 2132 wrote to memory of 1876	2132	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff.exe
"C:\Users\Admin\AppData\Local\Temp\b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 476
  2⤵
  - Program crash
  PID:3428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 796
  2⤵
  - Program crash
  PID:968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 836
  2⤵
  - Program crash
  PID:2872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 836
  2⤵
  - Program crash
  PID:3572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 892
  2⤵
  - Program crash
  PID:944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 1000
  2⤵
  - Program crash
  PID:4864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 1084
  2⤵
  - Program crash
  PID:4868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 1460
  2⤵
  - Program crash
  PID:4760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "b5aa79176608e720e13929625256b2c78692d178ceb596568fde11aefda566ff.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 1364
  2⤵
  - Program crash
  PID:2412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4816 -ip 4816
1⤵
PID:4092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4816 -ip 4816
1⤵
PID:1000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4816 -ip 4816
1⤵
PID:2228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4816 -ip 4816
1⤵
PID:4936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4816 -ip 4816
1⤵
PID:376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4816 -ip 4816
1⤵
PID:1360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4816 -ip 4816
1⤵
PID:4024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4816 -ip 4816
1⤵
PID:3316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4816 -ip 4816
1⤵
PID:4220

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

memory/4816-2-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4816-1-0x00000000021C0000-0x00000000022C0000-memory.dmp

Filesize
1024KB

Download
memory/4816-3-0x0000000000400000-0x0000000001FA7000-memory.dmp

Filesize
27.7MB

Download
memory/4816-6-0x0000000000400000-0x0000000001FA7000-memory.dmp

Filesize
27.7MB

Download
memory/4816-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

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