Analysis

  • max time kernel
    163s
  • max time network
    164s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    13-10-2021 17:35

General

  • Target

    OAa3nu595dA7afB.exe

  • Size

    553KB

  • MD5

    1823dce627d29f5d4985501267f7ad9f

  • SHA1

    1ce10042fccf2c8fcb2b0a93723f24b6c3b4ffb3

  • SHA256

    c14ba2023f89dc57df157690e40042b8b090906257c59b6e5834b2212cd3142e

  • SHA512

    88421fa99979a5ed7d55a2dccffbb96af3e72539e5dba61bf7860d2321a2f79deb5e9aae65e3fb9e5a17998a60d87abbbdc7b0dc495c991b4a3813a2ef8edb72

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn7r

C2

http://www.yourherogarden.net/dn7r/

Decoy

eventphotographerdfw.com

thehalalcoinstaking.com

philipfaziofineart.com

intercoh.com

gaiaseyephotography.com

chatbotforrealestate.com

lovelancemg.com

marlieskasberger.com

elcongoenespanol.info

lepirecredit.com

distribution-concept.com

e99game.com

exit11festival.com

twodollartoothbrushclub.com

cocktailsandlawn.com

performimprove.network

24horas-telefono-11840.com

cosmossify.com

kellenleote.com

perovskite.energy

Signatures

  • Formbook

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

  • Formbook Payload 4 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2900
    • C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe
      "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:4796
      • C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe
        "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2368
    • 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:2740
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
        3⤵
          PID:2788

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2368-130-0x0000000003200000-0x0000000003215000-memory.dmp
      Filesize

      84KB

    • memory/2368-124-0x000000000041F200-mapping.dmp
    • memory/2368-126-0x00000000014A0000-0x00000000017C0000-memory.dmp
      Filesize

      3.1MB

    • memory/2368-127-0x0000000001800000-0x0000000001815000-memory.dmp
      Filesize

      84KB

    • memory/2368-123-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/2368-129-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/2740-137-0x00000000035B0000-0x0000000003644000-memory.dmp
      Filesize

      592KB

    • memory/2740-136-0x0000000003840000-0x0000000003B60000-memory.dmp
      Filesize

      3.1MB

    • memory/2740-134-0x0000000000CC0000-0x0000000000CC7000-memory.dmp
      Filesize

      28KB

    • memory/2740-135-0x0000000002F50000-0x0000000002F7F000-memory.dmp
      Filesize

      188KB

    • memory/2740-132-0x0000000000000000-mapping.dmp
    • memory/2788-133-0x0000000000000000-mapping.dmp
    • memory/2900-138-0x0000000006890000-0x00000000069C8000-memory.dmp
      Filesize

      1.2MB

    • memory/2900-131-0x0000000006420000-0x0000000006511000-memory.dmp
      Filesize

      964KB

    • memory/2900-128-0x0000000002EA0000-0x0000000002FA0000-memory.dmp
      Filesize

      1024KB

    • memory/4796-116-0x0000000005FF0000-0x0000000005FF1000-memory.dmp
      Filesize

      4KB

    • memory/4796-114-0x0000000000F10000-0x0000000000F11000-memory.dmp
      Filesize

      4KB

    • memory/4796-117-0x0000000005990000-0x0000000005991000-memory.dmp
      Filesize

      4KB

    • memory/4796-122-0x0000000001A70000-0x0000000001AE6000-memory.dmp
      Filesize

      472KB

    • memory/4796-121-0x0000000001880000-0x0000000001881000-memory.dmp
      Filesize

      4KB

    • memory/4796-120-0x0000000005D70000-0x0000000005D75000-memory.dmp
      Filesize

      20KB

    • memory/4796-119-0x0000000005900000-0x0000000005901000-memory.dmp
      Filesize

      4KB

    • memory/4796-118-0x0000000005AF0000-0x0000000005FEE000-memory.dmp
      Filesize

      5.0MB