Analysis

  • max time kernel
    151s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    13-01-2021 06:48

General

  • Target

    1.js

  • Size

    664KB

  • MD5

    069e5d7ddc53d96d7320b821537781f7

  • SHA1

    af4116b7136d4cbf37a1a9351958c574348b23e0

  • SHA256

    84e1944968103d32993f8f4b66f8c64a0c11a830242dd79b11b11436945fbde1

  • SHA512

    ee35a4b22cd17363e27e60b5ba259971d1f4d0f5089a03017156a33f841d908e52e6974814d278b7987e46877c3ad4228a33a029445bc38906e2add22de9d3f8

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 20 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • JavaScript code in executable 2 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\1.js
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:808
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\1.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      PID:1284

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\1.js

    MD5

    069e5d7ddc53d96d7320b821537781f7

    SHA1

    af4116b7136d4cbf37a1a9351958c574348b23e0

    SHA256

    84e1944968103d32993f8f4b66f8c64a0c11a830242dd79b11b11436945fbde1

    SHA512

    ee35a4b22cd17363e27e60b5ba259971d1f4d0f5089a03017156a33f841d908e52e6974814d278b7987e46877c3ad4228a33a029445bc38906e2add22de9d3f8

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1.js

    MD5

    069e5d7ddc53d96d7320b821537781f7

    SHA1

    af4116b7136d4cbf37a1a9351958c574348b23e0

    SHA256

    84e1944968103d32993f8f4b66f8c64a0c11a830242dd79b11b11436945fbde1

    SHA512

    ee35a4b22cd17363e27e60b5ba259971d1f4d0f5089a03017156a33f841d908e52e6974814d278b7987e46877c3ad4228a33a029445bc38906e2add22de9d3f8

  • memory/808-3-0x00000000027A0000-0x00000000027A4000-memory.dmp

    Filesize

    16KB

  • memory/1284-2-0x0000000000000000-mapping.dmp

  • memory/1472-6-0x000007FEF6EA0000-0x000007FEF711A000-memory.dmp

    Filesize

    2.5MB