gcleaner | 71dfa64187315a09becab456d32e70e43ae68afbff5a601a9227089241b9c460

Resubmissions

19/04/2023, 10:12

230419-l8kdpabf9z 10

19/04/2023, 09:14

230419-k7qcwahe75 10

18/04/2023, 11:36

230418-nqkylsch3z 10

Analysis

max time kernel
30s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
19/04/2023, 09:14

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General

Target

1e0c04259041599f381739e5a2779118.exe
Size

282KB
MD5

1e0c04259041599f381739e5a2779118
SHA1

4aeec9e7e2d836ef69145a8451410b49d7ee8139
SHA256

71dfa64187315a09becab456d32e70e43ae68afbff5a601a9227089241b9c460
SHA512

bb1f4f064a0f7da8a7cf2aae2f7eb8687bf8f4861e168a97c4e31bced31341d552419bc96d254e11237c1227fc3836ebc802eff7af6a399a2bab62b94d3e275d
SSDEEP

3072:kcJiBxMfexCJCzAU0tPjv4UVA3oG+dHLnVTuX2kmo5ugsFWrO7CCFpPsOmmh16Pq:axaUCJCIjASGoGoOMF7+QpppObl7iM

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

Deletes itself 1 IoCs

pid	Process
588	cmd.exe

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
824	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	824	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1256 wrote to memory of 588	1256	1e0c04259041599f381739e5a2779118.exe	30
PID 1256 wrote to memory of 588	1256	1e0c04259041599f381739e5a2779118.exe	30
PID 1256 wrote to memory of 588	1256	1e0c04259041599f381739e5a2779118.exe	30
PID 1256 wrote to memory of 588	1256	1e0c04259041599f381739e5a2779118.exe	30
PID 588 wrote to memory of 824	588	cmd.exe	32
PID 588 wrote to memory of 824	588	cmd.exe	32
PID 588 wrote to memory of 824	588	cmd.exe	32
PID 588 wrote to memory of 824	588	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\1e0c04259041599f381739e5a2779118.exe
C:\Users\Admin\AppData\Local\Temp\1e0c04259041599f381739e5a2779118.exe /chk,hell
1⤵
- Suspicious use of WriteProcessMemory
PID:1256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "1e0c04259041599f381739e5a2779118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1e0c04259041599f381739e5a2779118.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:588
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "1e0c04259041599f381739e5a2779118.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:824

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1256-55-0x0000000000220000-0x0000000000261000-memory.dmp

Filesize
260KB

Download
memory/1256-56-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1256-58-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download