Analysis

  • max time kernel
    56s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    16-08-2021 19:45

General

  • Target

    5ee375628c34cd0aa0833e24bc31087a.exe

  • Size

    1.2MB

  • MD5

    5ee375628c34cd0aa0833e24bc31087a

  • SHA1

    1d8c406871a1969850fd31883f23b56cb0bf0380

  • SHA256

    dfe96798a6065c99050d1cb964200874b40e3916f90e3caed35df9ace3dc3198

  • SHA512

    8b2d3401ebdb16d0ccfd7daa80344e1c0970720da2b12899af6482828ab7fc353b462b3b252dc7b0177a320b1a75bb537c439b64ea7c683e299e7a2e48873b70

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kzk9

C2

http://www.yourmajordomo.com/kzk9/

Decoy

tianconghuo.club

1996-page.com

ourtownmax.net

conservativetreehose.com

synth.repair

donnachicacreperia.com

tentfull.com

weapp.download

surfersink.com

gattlebusinessservices.com

sebastian249.com

anhphuc.company

betternatureproducts.net

defroplate.com

seattlesquidsquad.com

polarjob.com

lendingadvantage.com

angelsondope.com

goportjitney.com

tiendagrupojagr.com

Signatures

  • Formbook

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

  • Formbook Payload 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5ee375628c34cd0aa0833e24bc31087a.exe
    "C:\Users\Admin\AppData\Local\Temp\5ee375628c34cd0aa0833e24bc31087a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3896
    • C:\Users\Admin\AppData\Local\Temp\5ee375628c34cd0aa0833e24bc31087a.exe
      "C:\Users\Admin\AppData\Local\Temp\5ee375628c34cd0aa0833e24bc31087a.exe"
      2⤵
        PID:2116
      • C:\Users\Admin\AppData\Local\Temp\5ee375628c34cd0aa0833e24bc31087a.exe
        "C:\Users\Admin\AppData\Local\Temp\5ee375628c34cd0aa0833e24bc31087a.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1056

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1056-126-0x000000000041EB80-mapping.dmp

    • memory/1056-127-0x0000000001500000-0x0000000001820000-memory.dmp

      Filesize

      3.1MB

    • memory/1056-125-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/3896-121-0x00000000052B0000-0x00000000057AE000-memory.dmp

      Filesize

      5.0MB

    • memory/3896-119-0x00000000051B0000-0x00000000051B1000-memory.dmp

      Filesize

      4KB

    • memory/3896-120-0x0000000005470000-0x0000000005471000-memory.dmp

      Filesize

      4KB

    • memory/3896-114-0x0000000000860000-0x0000000000861000-memory.dmp

      Filesize

      4KB

    • memory/3896-122-0x0000000006E00000-0x0000000006E11000-memory.dmp

      Filesize

      68KB

    • memory/3896-123-0x0000000008B00000-0x0000000008B9D000-memory.dmp

      Filesize

      628KB

    • memory/3896-124-0x000000000B300000-0x000000000B32F000-memory.dmp

      Filesize

      188KB

    • memory/3896-118-0x00000000052B0000-0x00000000052B1000-memory.dmp

      Filesize

      4KB

    • memory/3896-117-0x00000000057B0000-0x00000000057B1000-memory.dmp

      Filesize

      4KB

    • memory/3896-116-0x0000000005210000-0x0000000005211000-memory.dmp

      Filesize

      4KB