Overview

overview

8

Static

static

43b8cf473c...e3.exe

windows7_x64

8

43b8cf473c...e3.exe

windows10_x64

8

Analysis

  • max time kernel
    136s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    08/09/2021, 01:13

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General

  • Target
    43b8cf473c49e102366ed4c0627f15e3.exe
  • Size 1.9MB
  • Sample210908-bk36sagfdm
  • SHA256 2933bf42825a628f1839700c3eb682361460b09bb8aaf14b0ab71cd91e9488df
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43b8cf473c49e102366ed4c0627f15e3.exe
    "C:\Users\Admin\AppData\Local\Temp\43b8cf473c49e102366ed4c0627f15e3.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "services32" /tr '"C:\Users\Admin\AppData\Roaming\services32.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3380
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "services32" /tr '"C:\Users\Admin\AppData\Roaming\services32.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:2728
    • C:\Users\Admin\AppData\Roaming\services32.exe
      "C:\Users\Admin\AppData\Roaming\services32.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1432
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "services32" /tr '"C:\Users\Admin\AppData\Roaming\services32.exe"' & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2220
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "services32" /tr '"C:\Users\Admin\AppData\Roaming\services32.exe"'
          4⤵
          • Creates scheduled task(s)
          PID:1320
      • C:\Users\Admin\AppData\Roaming\Microsoft\Telemetry\sihost32.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Telemetry\sihost32.exe"
        3⤵
        • Executes dropped EXE
        PID:2204

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/656-116-0x000000001BF90000-0x000000001C176000-memory.dmp
        Download

        memory/656-117-0x0000000001340000-0x0000000001341000-memory.dmp
        Download

        memory/656-120-0x0000000001330000-0x0000000001332000-memory.dmp
        Download

        memory/656-114-0x00000000003A0000-0x00000000003A1000-memory.dmp
        Download

        memory/1432-128-0x000000001C840000-0x000000001C842000-memory.dmp
        Download

        memory/2204-133-0x0000000000710000-0x0000000000711000-memory.dmp
        Download

        memory/2204-136-0x000000001C230000-0x000000001C232000-memory.dmp
        Download