Analysis

  • max time kernel
    110s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    22-10-2021 15:56

General

  • Target

    d9db7f117e5fc750e78b0178003bca82684a2a36f951fa0d3a59a58bd178a302.exe

  • Size

    697KB

  • MD5

    f94dd54fedbdf4f0f6992c781476e4a4

  • SHA1

    93fb57ab3c31b5fa13827670a003ea203ff904d5

  • SHA256

    d9db7f117e5fc750e78b0178003bca82684a2a36f951fa0d3a59a58bd178a302

  • SHA512

    fadf4a955ef4d3d0162c66ac896046177d86b2e9f401e5c02be2b181755827629e617584b853f5f4aa5393391834700ad103cc755e71482b0c3a4b40f7f65ace

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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d9db7f117e5fc750e78b0178003bca82684a2a36f951fa0d3a59a58bd178a302.exe
    "C:\Users\Admin\AppData\Local\Temp\d9db7f117e5fc750e78b0178003bca82684a2a36f951fa0d3a59a58bd178a302.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Users\Admin\AppData\Local\Temp\d9db7f117e5fc750e78b0178003bca82684a2a36f951fa0d3a59a58bd178a302.exe
      "C:\Users\Admin\AppData\Local\Temp\d9db7f117e5fc750e78b0178003bca82684a2a36f951fa0d3a59a58bd178a302.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:3796

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2744-115-0x0000000000CA0000-0x0000000000CA1000-memory.dmp
    Filesize

    4KB

  • memory/2744-117-0x0000000007EF0000-0x0000000007EF1000-memory.dmp
    Filesize

    4KB

  • memory/2744-118-0x0000000007AD0000-0x0000000007AD1000-memory.dmp
    Filesize

    4KB

  • memory/2744-119-0x00000000079F0000-0x0000000007EEE000-memory.dmp
    Filesize

    5.0MB

  • memory/2744-120-0x0000000007A60000-0x0000000007A61000-memory.dmp
    Filesize

    4KB

  • memory/2744-121-0x0000000007D60000-0x0000000007D67000-memory.dmp
    Filesize

    28KB

  • memory/2744-122-0x000000000A2F0000-0x000000000A2F1000-memory.dmp
    Filesize

    4KB

  • memory/2744-123-0x0000000008D80000-0x0000000008DCF000-memory.dmp
    Filesize

    316KB

  • memory/3796-124-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/3796-125-0x000000000041EB80-mapping.dmp
  • memory/3796-126-0x0000000001A10000-0x0000000001D30000-memory.dmp
    Filesize

    3.1MB