Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    02-11-2021 09:22

General

  • Target

    Order 0091.com.exe

  • Size

    559KB

  • MD5

    c37cb93c1eecd9172347f1badaecb51d

  • SHA1

    ef38eda92ddd78dc47c94afcb06800cc9eedb4af

  • SHA256

    5faf43a6f7999e59d5660ed1b485bb6be7a3cb80b753e0a644fd7bc282f7f6bf

  • SHA512

    5a1b2df9dab18de14afc7eb52d24348d9c1796eb49bc9397d06e8680e6f800e91d36828a94c7308c66f7b8cee35300f0c327c168bb8676ac9c2296f65099531c

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
  • Loads dropped DLL 1 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.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 4 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:3024
    • C:\Users\Admin\AppData\Local\Temp\Order 0091.com.exe
      "C:\Users\Admin\AppData\Local\Temp\Order 0091.com.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:3288
      • C:\Users\Admin\AppData\Local\Temp\Order 0091.com.exe
        "C:\Users\Admin\AppData\Local\Temp\Order 0091.com.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2660
    • C:\Windows\SysWOW64\cmmon32.exe
      "C:\Windows\SysWOW64\cmmon32.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3160
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Order 0091.com.exe"
        3⤵
          PID:1136

    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\nsz1B84.tmp\umajjj.dll
      MD5

      7e55e6ce68778fcd11660965bd28aa8e

      SHA1

      af2a3c1d3620b268397dc2657b7218c39f6228da

      SHA256

      c3999cedc4588c80f6cca880dcacf28315673dffd034aef6de374314005c1dd0

      SHA512

      b260fca450b9a258eb656104f795bfc59fd7dc9d106401e43edb988bf4ac2a94723b1a3e8ccad3c6ec78a1fca3ef85e302ea767ef1645da1becec928c230b980

    • memory/1136-126-0x0000000000000000-mapping.dmp
    • memory/2660-122-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/2660-119-0x0000000000A10000-0x0000000000D30000-memory.dmp
      Filesize

      3.1MB

    • memory/2660-120-0x00000000009F0000-0x0000000000A05000-memory.dmp
      Filesize

      84KB

    • memory/2660-117-0x000000000041F200-mapping.dmp
    • memory/2660-123-0x0000000000D50000-0x0000000000D65000-memory.dmp
      Filesize

      84KB

    • memory/2660-116-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/3024-121-0x0000000005D00000-0x0000000005E45000-memory.dmp
      Filesize

      1.3MB

    • memory/3024-124-0x0000000005E50000-0x0000000005F6B000-memory.dmp
      Filesize

      1.1MB

    • memory/3160-125-0x0000000000000000-mapping.dmp
    • memory/3160-128-0x0000000000410000-0x000000000043F000-memory.dmp
      Filesize

      188KB

    • memory/3160-129-0x0000000000EC0000-0x00000000011E0000-memory.dmp
      Filesize

      3.1MB

    • memory/3160-127-0x0000000001300000-0x000000000130C000-memory.dmp
      Filesize

      48KB