gcleaner | 48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3

General

Target

48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe
Size

322KB
MD5

e5fedf19422b8e2b086006fc1874e7eb
SHA1

f8e6ee1b85b0a4039ecb2c6f4fa21564336fd146
SHA256

48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3
SHA512

32a50a68f03ca9453e4ae1c661b34caeca1a10f641a298e65c88b357dcd820f9165dc8a4dfc06eefc82536da437314570b3b7114559900071d2f38e359129b7c
SSDEEP

6144:xff1UDhSFXP4Smb9F3bNNp3KIERjteyPzP8lRkeEVRJ8zjeEhuQTdJtTm:5fehSFXLsP3XpaIERjcSPURkRVkzaEhK

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

45.91.200.135

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3432 set thread context of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1264	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1264	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3432 wrote to memory of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81
PID 3432 wrote to memory of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81
PID 3432 wrote to memory of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81
PID 3432 wrote to memory of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81
PID 3432 wrote to memory of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81
PID 3432 wrote to memory of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81
PID 3432 wrote to memory of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81
PID 3432 wrote to memory of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81
PID 3432 wrote to memory of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81
PID 3432 wrote to memory of 3808	3432	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	81
PID 3808 wrote to memory of 2748	3808	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	82
PID 3808 wrote to memory of 2748	3808	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	82
PID 3808 wrote to memory of 2748	3808	48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe	82
PID 2748 wrote to memory of 1264	2748	cmd.exe	84
PID 2748 wrote to memory of 1264	2748	cmd.exe	84
PID 2748 wrote to memory of 1264	2748	cmd.exe	84

C:\Users\Admin\AppData\Local\Temp\48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe
"C:\Users\Admin\AppData\Local\Temp\48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Users\Admin\AppData\Local\Temp\48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe
  "C:\Users\Admin\AppData\Local\Temp\48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3808
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c taskkill /im "48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2748
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /im "48ec9c2b9b6993d644e02de8ed24097193359b2b2541d76509f456144dd84ee3.exe" /f
      4⤵
      System Location Discovery: System Language Discovery
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:1264

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\JL3S1NU9\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/3432-1-0x0000000002E10000-0x0000000002F10000-memory.dmp

Filesize
1024KB

Download
memory/3432-2-0x00000000049F0000-0x0000000004A2B000-memory.dmp

Filesize
236KB

Download
memory/3808-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3808-4-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3808-5-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3808-7-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3808-12-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3808-19-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3808-28-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3808-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download

Analysis

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