Analysis

  • max time kernel
    166s
  • max time network
    168s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    13-10-2021 17:44

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.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Formbook Payload 3 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3056
    • 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:808
      • 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:1292
    • C:\Windows\SysWOW64\raserver.exe
      "C:\Windows\SysWOW64\raserver.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4080
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"
        3⤵
          PID:1252

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/808-114-0x00000000006E0000-0x00000000006E1000-memory.dmp
      Filesize

      4KB

    • memory/808-116-0x0000000005510000-0x0000000005511000-memory.dmp
      Filesize

      4KB

    • memory/808-117-0x00000000050F0000-0x00000000050F1000-memory.dmp
      Filesize

      4KB

    • memory/808-118-0x0000000005010000-0x000000000550E000-memory.dmp
      Filesize

      5.0MB

    • memory/808-119-0x00000000050E0000-0x00000000050E1000-memory.dmp
      Filesize

      4KB

    • memory/808-120-0x00000000054D0000-0x00000000054D5000-memory.dmp
      Filesize

      20KB

    • memory/808-121-0x00000000077C0000-0x00000000077C1000-memory.dmp
      Filesize

      4KB

    • memory/808-122-0x00000000078E0000-0x0000000007956000-memory.dmp
      Filesize

      472KB

    • memory/1252-132-0x0000000000000000-mapping.dmp
    • memory/1292-127-0x0000000001430000-0x0000000001445000-memory.dmp
      Filesize

      84KB

    • memory/1292-124-0x000000000041F200-mapping.dmp
    • memory/1292-126-0x00000000018A0000-0x0000000001BC0000-memory.dmp
      Filesize

      3.1MB

    • memory/1292-123-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/3056-128-0x0000000002DC0000-0x0000000002E93000-memory.dmp
      Filesize

      844KB

    • memory/3056-135-0x0000000006C00000-0x0000000006D4E000-memory.dmp
      Filesize

      1.3MB

    • memory/4080-129-0x0000000000000000-mapping.dmp
    • memory/4080-130-0x0000000000F80000-0x0000000000F9F000-memory.dmp
      Filesize

      124KB

    • memory/4080-131-0x0000000000A20000-0x0000000000A4F000-memory.dmp
      Filesize

      188KB

    • memory/4080-133-0x0000000004A80000-0x0000000004DA0000-memory.dmp
      Filesize

      3.1MB

    • memory/4080-134-0x0000000004840000-0x00000000048D4000-memory.dmp
      Filesize

      592KB