Analysis

  • max time kernel
    150s
  • max time network
    140s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    05-05-2021 12:03

General

  • Target

    Purchase Order-070POR044127.exe

  • Size

    755KB

  • MD5

    86ac789b8bc139ec5dbc204e7a3dd589

  • SHA1

    eadec8bb5cf57113589f456e4d237ae9610e242c

  • SHA256

    e8baf97ad51faed006287d1f01f921df0f677d4f056d35697158d30aa24ace9b

  • SHA512

    fca533d07a06337cb61bfe84cde9e7b1eb240e6a7d7f4ca001a232916c79465c6c908be5040c83e0218ac679f651e2a7209f7672ee08e41dcd413c9772e4c2d3

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.magnumopuspro.com/nyr/

Decoy

anemone-vintage.com

ironcitytools.com

joshandmatthew.com

breathtakingscenery.photos

karabakh-terror.com

micahelgall.com

entretiendesterrasses.com

mhgholdings.com

blewm.com

sidewalknotary.com

ytrs-elec.com

danhpham.com

ma21cle2henz.xyz

lotusforlease.com

shipleyphotoandfilm.com

bulktool.xyz

ouedzmala.com

yichengvpr.com

connectmygames.com

chjcsc.com

Signatures

  • Formbook

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

  • Formbook Payload 4 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order-070POR044127.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order-070POR044127.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:3924
      • C:\Users\Admin\AppData\Local\Temp\Purchase Order-070POR044127.exe
        "C:\Users\Admin\AppData\Local\Temp\Purchase Order-070POR044127.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1328
    • C:\Windows\SysWOW64\help.exe
      "C:\Windows\SysWOW64\help.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3164
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Purchase Order-070POR044127.exe"
        3⤵
          PID:2028

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1328-123-0x0000000000400000-0x000000000042E000-memory.dmp
      Filesize

      184KB

    • memory/1328-127-0x0000000001610000-0x0000000001624000-memory.dmp
      Filesize

      80KB

    • memory/1328-126-0x0000000001650000-0x0000000001970000-memory.dmp
      Filesize

      3.1MB

    • memory/1328-124-0x000000000041EBA0-mapping.dmp
    • memory/2028-132-0x0000000000000000-mapping.dmp
    • memory/3064-135-0x00000000025C0000-0x00000000026A3000-memory.dmp
      Filesize

      908KB

    • memory/3064-128-0x00000000043C0000-0x00000000044C8000-memory.dmp
      Filesize

      1.0MB

    • memory/3164-130-0x0000000000180000-0x0000000000187000-memory.dmp
      Filesize

      28KB

    • memory/3164-129-0x0000000000000000-mapping.dmp
    • memory/3164-131-0x0000000002B70000-0x0000000002B9E000-memory.dmp
      Filesize

      184KB

    • memory/3164-133-0x0000000002E00000-0x0000000002EAE000-memory.dmp
      Filesize

      696KB

    • memory/3164-134-0x0000000003280000-0x0000000003313000-memory.dmp
      Filesize

      588KB

    • memory/3924-122-0x0000000006140000-0x00000000061AB000-memory.dmp
      Filesize

      428KB

    • memory/3924-121-0x00000000056B0000-0x000000000575F000-memory.dmp
      Filesize

      700KB

    • memory/3924-120-0x0000000006200000-0x0000000006201000-memory.dmp
      Filesize

      4KB

    • memory/3924-119-0x0000000005680000-0x000000000568E000-memory.dmp
      Filesize

      56KB

    • memory/3924-118-0x0000000002ED0000-0x0000000002ED1000-memory.dmp
      Filesize

      4KB

    • memory/3924-114-0x0000000000D60000-0x0000000000D61000-memory.dmp
      Filesize

      4KB

    • memory/3924-117-0x00000000059B0000-0x00000000059B1000-memory.dmp
      Filesize

      4KB

    • memory/3924-116-0x0000000005910000-0x0000000005911000-memory.dmp
      Filesize

      4KB