Analysis

  • max time kernel
    144s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2023 06:46

General

  • Target

    0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe

  • Size

    1.6MB

  • MD5

    58f5d3f738283351db8a2dbafb50be24

  • SHA1

    9c18d5b5957ecf187fb5a2e68a6868a8cd719265

  • SHA256

    0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba

  • SHA512

    80bbf70fc808c593f1b9c58d11d2d32624040917ae54d0c0eb577bde522a1bb1b914c8578a811743bcbc2dbe62a0b8609cc65093d81ca296662e33c71913e3d0

  • SSDEEP

    24576:Di2Q9NXw2/wPOjdGxY2rqkqjVnlqud+/2P+A+ZecdyFoBkkAnexMrdgL/:mTq24GjdGSiqkqXfd+/9AqYanieKd

Score
10/10

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1122279032260665414/W-unCHniD2YI670Bytn7FIpY-nux43_owoRzlVZOux3NvAnntnyH_9eSHWkJsi-nQBDo

Signatures

  • Stealerium

    An open source info stealer written in C# first seen in May 2022.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe
    "C:\Users\Admin\AppData\Local\Temp\0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3396
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpB088.tmp.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1156
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
          PID:3684
        • C:\Windows\SysWOW64\taskkill.exe
          TaskKill /F /IM 3396
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2224
        • C:\Windows\SysWOW64\timeout.exe
          Timeout /T 2 /Nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:1668

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpB088.tmp.bat

      Filesize

      57B

      MD5

      5598d897b4a0bf5b17851502805f03af

      SHA1

      7049efc5342bc12de09d37d96e93d51377613b68

      SHA256

      1f25f13f26fc956e6c9a416a7a342ffb350d16d86f80e5bb050f64928d4a5d5a

      SHA512

      f37c6547d971091d06364a68b3e4459baaaf8864661a46c7fcefa5d89d034a39e5d5731c221853fbc8406b59c6e7e9a11f379c1d34c4be7243f68e066d78cde7

    • memory/3396-133-0x00000000005D0000-0x0000000000762000-memory.dmp

      Filesize

      1.6MB

    • memory/3396-134-0x00000000050F0000-0x0000000005156000-memory.dmp

      Filesize

      408KB

    • memory/3396-135-0x00000000050E0000-0x00000000050F0000-memory.dmp

      Filesize

      64KB

    • memory/3396-136-0x00000000050E0000-0x00000000050F0000-memory.dmp

      Filesize

      64KB