Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    26-02-2021 06:43

General

  • Target

    Ordine -159-pdf.exe

  • Size

    212KB

  • MD5

    77ef1adb73a2c4bf01fa2c3521b5df8e

  • SHA1

    dca2092fd1a203ba7d6bb9f043620a1b1700fca2

  • SHA256

    61b36d9d2e055b9e7be872cd42f44e78e9abfd505e5bc4e719d5b9801200d99e

  • SHA512

    a7efeae6777e57d14b09909b9c5f3d20e39afc03fc93e032482819b5292b02cb88d74d44f7ec0b24ada41e59bc0b3a9faeb1683430c1fabb18cf5cb52804ef6e

Malware Config

Extracted

Family

formbook

C2

http://www.northwestcitraland.com/uqf5/

Decoy

chennaimarketplace.com

connect-c-mutue1.com

red4x.com

hongbei413.com

hckjxx.club

leadingdatasms.com

flash2mp3.com

njjvxin.com

bostonm.info

sgvision.net

linkit-mx.online

preferential.today

wmcanesthesiology.com

nationallawfulassent.com

atelierlun.com

hydeparkattulsahills.com

jamesprep.com

forcexconsulting.com

funkyleo.com

blackownedcapital.com

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3128
    • C:\Users\Admin\AppData\Local\Temp\Ordine -159-pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Ordine -159-pdf.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4020
      • C:\Users\Admin\AppData\Local\Temp\Ordine -159-pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\Ordine -159-pdf.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1436
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1460
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Ordine -159-pdf.exe"
        3⤵
          PID:2408

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\9e8l7wc53tl.dll
      MD5

      1d16d1a1f10db85d1ccc19a53a9fb425

      SHA1

      0da84b1cfab34bd7dec54ad7a3574649645acb41

      SHA256

      0a503b80e7e37f257eea874d37cd2dfe616db0ecd8a817c848381eb48f74e0da

      SHA512

      cc900e954d7886201c3dac2994f7b97b7386dd097bf1c64ebded6fff7c9aafe247916a6fb4e4646f2e87a51d33b4c147b7b313e94a27654bb63264d951c4ded8

    • \Users\Admin\AppData\Local\Temp\nsn356E.tmp\System.dll
      MD5

      fccff8cb7a1067e23fd2e2b63971a8e1

      SHA1

      30e2a9e137c1223a78a0f7b0bf96a1c361976d91

      SHA256

      6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

      SHA512

      f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

    • memory/1436-4-0x000000000041D0A0-mapping.dmp
    • memory/1436-6-0x0000000000B00000-0x0000000000E20000-memory.dmp
      Filesize

      3.1MB

    • memory/1436-5-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/1436-8-0x00000000009E0000-0x00000000009F1000-memory.dmp
      Filesize

      68KB

    • memory/1460-13-0x0000000002B60000-0x0000000002B89000-memory.dmp
      Filesize

      164KB

    • memory/1460-10-0x0000000000000000-mapping.dmp
    • memory/1460-12-0x0000000000110000-0x000000000054F000-memory.dmp
      Filesize

      4.2MB

    • memory/1460-14-0x0000000004890000-0x0000000004BB0000-memory.dmp
      Filesize

      3.1MB

    • memory/1460-15-0x00000000046E0000-0x0000000004770000-memory.dmp
      Filesize

      576KB

    • memory/2408-11-0x0000000000000000-mapping.dmp
    • memory/3128-9-0x00000000032B0000-0x00000000033A6000-memory.dmp
      Filesize

      984KB

    • memory/3128-16-0x00000000057B0000-0x00000000058C0000-memory.dmp
      Filesize

      1.1MB