65907c6254e30913a33ce9b71a1644d9730eff4b450a7aa6830e184ebfca76af

Analysis

max time kernel
71s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2023 13:50

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General

Target

39668f1f623383d85e1b3fefa689ccd8.exe
Size

430KB
MD5

39668f1f623383d85e1b3fefa689ccd8
SHA1

c19136d3fbd2848ae15530896c208ebb725e9d19
SHA256

65907c6254e30913a33ce9b71a1644d9730eff4b450a7aa6830e184ebfca76af
SHA512

d167991b38c3acd44ee4ec29e3cb26fb8f8ebe8a1e45f77046865e981d767b3dd0665d4663ac427d36945fa4538d7c34e3320abc4a8f5507bad7acf19c8c7392
SSDEEP

12288:ibee0PGl89WazvzkmMxM+ltxQMAn0Iv1b70ZSf2q:2edGBazvZMHltxtIv1bUS+q

Score

7^/10

persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	39668f1f623383d85e1b3fefa689ccd8.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Winder.lnk	39668f1f623383d85e1b3fefa689ccd8.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\39668f1f623383d85e1b3fefa689ccd8.exe = "C:\\System32\\39668f1f623383d85e1b3fefa689ccd8.exe"	39668f1f623383d85e1b3fefa689ccd8.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000_Classes\Local Settings	39668f1f623383d85e1b3fefa689ccd8.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2720	39668f1f623383d85e1b3fefa689ccd8.exe
2720	39668f1f623383d85e1b3fefa689ccd8.exe
2720	39668f1f623383d85e1b3fefa689ccd8.exe
2720	39668f1f623383d85e1b3fefa689ccd8.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2720	39668f1f623383d85e1b3fefa689ccd8.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2720	39668f1f623383d85e1b3fefa689ccd8.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2720	39668f1f623383d85e1b3fefa689ccd8.exe
2720	39668f1f623383d85e1b3fefa689ccd8.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 4000	2720	39668f1f623383d85e1b3fefa689ccd8.exe	91
PID 2720 wrote to memory of 4000	2720	39668f1f623383d85e1b3fefa689ccd8.exe	91
PID 2720 wrote to memory of 4000	2720	39668f1f623383d85e1b3fefa689ccd8.exe	91
PID 2720 wrote to memory of 4724	2720	39668f1f623383d85e1b3fefa689ccd8.exe	90
PID 2720 wrote to memory of 4724	2720	39668f1f623383d85e1b3fefa689ccd8.exe	90
PID 2720 wrote to memory of 4724	2720	39668f1f623383d85e1b3fefa689ccd8.exe	90

C:\Users\Admin\AppData\Local\Temp\39668f1f623383d85e1b3fefa689ccd8.exe
"C:\Users\Admin\AppData\Local\Temp\39668f1f623383d85e1b3fefa689ccd8.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS1.vbs"
  2⤵
  PID:4724
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS1.vbs"
  2⤵
  PID:4000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\VBS1.vbs

Filesize
653B

MD5
f6e184bb3d0befdaa7e03613203ef96e

SHA1
8b2ffe7ba20056b61b6c99a3844ec36e3d977a2f

SHA256
4adf8e79e96d21b58b548b6a8575e56bcf477e272ea0aced2a46c95ce1600b8f

SHA512
463c989e0b680bb7e1d95fa0c531265b720824f9378c53907bd57298d41786f972ca06462fa13c4799bac2d62a6942d42a0cbc6c5c63c15ea99c5be2b433daaf

Download Submit
memory/2720-0-0x0000000000400000-0x0000000000575000-memory.dmp

Filesize
1.5MB

Download
memory/2720-1-0x0000000000400000-0x0000000000575000-memory.dmp

Filesize
1.5MB

Download
memory/2720-14-0x0000000000400000-0x0000000000575000-memory.dmp

Filesize
1.5MB

Download