gcleaner | 50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c

General

Target

50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
Size

310KB
MD5

58511823a6e326fdea8e0afa38596a38
SHA1

450bd007eb1ce60d4c7d6c42e7dcf472a959e15f
SHA256

50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c
SHA512

21c907bad23adc048eb4e4a9b5626cefde01f557b2cfcaf0228ab2b4ff80ada9017147f4755542edd67d81d82a37145ab30b9563e5da0f963071d4b23860eb77
SSDEEP

3072:VflUwFVMHKLuF5NmXbYB6F8oKHTVrsRhUDupAmdm+kubZa6IBbBN/BJhgw/M87z2:YwFVMHwS5N/8Fgz+vjQ+fNT85/

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

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
4908	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
1196	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
1340	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
3108	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
3492	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
2532	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
664	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
1084	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
4824	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
4788	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
5072	3432	WerFault.exe	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4112 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4112 taskkill.exe

pid	process
4112	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4112	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.execmd.exe

description	pid	process	target process
PID 3432 wrote to memory of 4240	3432	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe	cmd.exe
PID 3432 wrote to memory of 4240	3432	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe	cmd.exe
PID 3432 wrote to memory of 4240	3432	50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe	cmd.exe
PID 4240 wrote to memory of 4112	4240	cmd.exe	taskkill.exe
PID 4240 wrote to memory of 4112	4240	cmd.exe	taskkill.exe
PID 4240 wrote to memory of 4112	4240	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe
"C:\Users\Admin\AppData\Local\Temp\50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 472
  2⤵
  - Program crash
  PID:4908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 520
  2⤵
  - Program crash
  PID:1196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 780
  2⤵
  - Program crash
  PID:1340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 800
  2⤵
  - Program crash
  PID:3108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 820
  2⤵
  - Program crash
  PID:3492
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 816
  2⤵
  - Program crash
  PID:2532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 984
  2⤵
  - Program crash
  PID:664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 1068
  2⤵
  - Program crash
  PID:1084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 1368
  2⤵
  - Program crash
  PID:4824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 1824
  2⤵
  - Program crash
  PID:4788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4240
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "50e85440ff3489a4756b6b94658243eee33fb7d477b539a00301dde70f50a71c.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 1852
  2⤵
  - Program crash
  PID:5072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3432 -ip 3432
1⤵
PID:3304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3432 -ip 3432
1⤵
PID:560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3432 -ip 3432
1⤵
PID:3524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3432 -ip 3432
1⤵
PID:1576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 3432 -ip 3432
1⤵
PID:3248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3432 -ip 3432
1⤵
PID:2028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3432 -ip 3432
1⤵
PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3432 -ip 3432
1⤵
PID:3052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 3432 -ip 3432
1⤵
PID:2944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3432 -ip 3432
1⤵
PID:4072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3432 -ip 3432
1⤵
PID:1448

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\NDYWT7Z5\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3432-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/3432-2-0x0000000002180000-0x00000000021BC000-memory.dmp

Filesize
240KB

Download
memory/3432-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3432-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3432-14-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3432-18-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/3432-22-0x0000000002180000-0x00000000021BC000-memory.dmp

Filesize
240KB

Download
memory/3432-25-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3432-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3432-34-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download

Analysis

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