Analysis

  • max time kernel
    137s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-04-2022 21:41

General

  • Target

    ???? ?????? ?????? ??????????? ??????.js

  • Size

    6KB

  • MD5

    a0eda7011826f1fd9570cbca604f6d56

  • SHA1

    34945745f5f129acc032522d44e5b4d76a68f792

  • SHA256

    6c99965799210d23afbd37fca69f810854f548ded8f600ecd93c3990d8d2bdda

  • SHA512

    ecf3beb5898bd3df212bfa6204b8496f1dd90d80daa19112f181defe25ff81b0ebc36fb4ec8f0d6dbade5af08df111f423862ee884682c847eaeb169f9f7ca47

Malware Config

Signatures

  • Troldesh, Shade, Encoder.858

    Troldesh is a ransomware spread by malspam.

  • Blocklisted process makes network request 4 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\____ ______ ______ ___________ ______.js"
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2592
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\radB0D00.tmp
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2556
      • C:\Users\Admin\AppData\Local\Temp\radB0D00.tmp
        C:\Users\Admin\AppData\Local\Temp\radB0D00.tmp
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:1724

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\radB0D00.tmp

    Filesize

    1.2MB

    MD5

    87ab5f476d4351224d893e267cc30d3b

    SHA1

    22e1fefd40bde744c165d316db26e88b5f4e6e70

    SHA256

    ca233059d5f7370dfdadf37d8f6b27ebf72ddaf6458613c2084b705727cf68ab

    SHA512

    7eb4776b09d586364d88ab1992133d9a0788c2c6c2e3ea4993ed061f4d25db9c7a3755a8add4775273193b953ca79ada4167d4a3671abbf728a4d0a61dd4e183

  • C:\Users\Admin\AppData\Local\Temp\radB0D00.tmp

    Filesize

    1.2MB

    MD5

    87ab5f476d4351224d893e267cc30d3b

    SHA1

    22e1fefd40bde744c165d316db26e88b5f4e6e70

    SHA256

    ca233059d5f7370dfdadf37d8f6b27ebf72ddaf6458613c2084b705727cf68ab

    SHA512

    7eb4776b09d586364d88ab1992133d9a0788c2c6c2e3ea4993ed061f4d25db9c7a3755a8add4775273193b953ca79ada4167d4a3671abbf728a4d0a61dd4e183

  • memory/1724-134-0x00000000023C0000-0x0000000002495000-memory.dmp

    Filesize

    852KB

  • memory/1724-135-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/1724-136-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB