Resubmissions

09-04-2024 12:50

240409-p3e4kaaf7v 10

09-04-2024 12:50

240409-p3d69saf7s 10

09-04-2024 12:50

240409-p3dkqsfd36 10

09-04-2024 12:50

240409-p3cy7saf61 10

Analysis

  • max time kernel
    300s
  • max time network
    283s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09-04-2024 12:50

General

  • Target

    osiris.exe

  • Size

    434KB

  • MD5

    64876d5de7061e925e29f6a0c87cea9b

  • SHA1

    51d6ed277b85b07974d450a9b3441c780467613f

  • SHA256

    01d5f1b32235b5d5ba5970d56639d82aa3d83b57ec08c79b3580fd0c88ef1c29

  • SHA512

    2dfe245cd058d10ac35c441238c52dcb08db8c565786d5824baf9cbd2846f2a4803709d4e9850add7f4c8e6ea5f37c23c66423820a9d6af2b7da8ddf74b6cb1b

  • SSDEEP

    12288:rXPcLcbGfVylwG/ZDCK/ScBXo8TsyMkKMY8m7WOK9SATTsx/SA/WegYfdNbrqnuv:rXh6XcBXo8TsL8Y8m/ATTySA/DrfdNbV

Score
10/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Uses Tor communications 1 TTPs

    Malware can proxy its traffic through Tor for more anonymity.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\osiris.exe
    "C:\Users\Admin\AppData\Local\Temp\osiris.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4740
    • C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe
      "C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"
      2⤵
      • Executes dropped EXE
      PID:4980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe

    Filesize

    3KB

    MD5

    b4cd27f2b37665f51eb9fe685ec1d373

    SHA1

    7f08febf0fdb7fc9f8bf35a10fb11e7de431abe0

    SHA256

    91f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581

    SHA512

    e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e

  • C:\Users\Admin\AppData\Local\Temp\x64btit.txt

    Filesize

    28B

    MD5

    6abf82845cccc3f44b5a0cf8ecd91f9c

    SHA1

    761e3d71761b1db7c5c0460892b39892f0f61d57

    SHA256

    ae1698ef2ab2a3c9848b730745eb6b30c9190cb1ff75272e4b9751337f774bdf

    SHA512

    ce9588bdc2fb73619be55a0223b0b0e11b5c90115d44da48a7c1f5e144838801a5bd0f74e11f59280868e805e2d184d14bd5e1e6424b5aacb836aee1773c5c40