Analysis

  • max time kernel
    50s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    12-10-2021 08:24

General

  • Target

    1fe73fe4d37cae6a02262b5164f3def0.exe

  • Size

    485KB

  • MD5

    1fe73fe4d37cae6a02262b5164f3def0

  • SHA1

    80b03eb27651723bded1fd1425f489225b3bba3b

  • SHA256

    0c33fe39195569a868cf9f87d3aff16e72f5a54c4e52a852b8f986d121fa47e8

  • SHA512

    7416dadb6e85cc43000bba33f47797cf7e5fe5ee0c9f8639685130264a867b6048839d2b74ca3e00b00caf8a1dcf83d08f01901c56ab9343888d62501c48d2b6

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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1fe73fe4d37cae6a02262b5164f3def0.exe
    "C:\Users\Admin\AppData\Local\Temp\1fe73fe4d37cae6a02262b5164f3def0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:364
    • C:\Users\Admin\AppData\Local\Temp\1fe73fe4d37cae6a02262b5164f3def0.exe
      "C:\Users\Admin\AppData\Local\Temp\1fe73fe4d37cae6a02262b5164f3def0.exe"
      2⤵
        PID:1004
      • C:\Users\Admin\AppData\Local\Temp\1fe73fe4d37cae6a02262b5164f3def0.exe
        "C:\Users\Admin\AppData\Local\Temp\1fe73fe4d37cae6a02262b5164f3def0.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2212

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/364-114-0x0000000000D60000-0x0000000000D61000-memory.dmp
      Filesize

      4KB

    • memory/364-116-0x0000000005A40000-0x0000000005A41000-memory.dmp
      Filesize

      4KB

    • memory/364-117-0x0000000005620000-0x0000000005621000-memory.dmp
      Filesize

      4KB

    • memory/364-118-0x0000000005540000-0x0000000005A3E000-memory.dmp
      Filesize

      5.0MB

    • memory/364-119-0x0000000005600000-0x0000000005601000-memory.dmp
      Filesize

      4KB

    • memory/364-120-0x0000000005880000-0x0000000005885000-memory.dmp
      Filesize

      20KB

    • memory/364-121-0x0000000007B30000-0x0000000007B31000-memory.dmp
      Filesize

      4KB

    • memory/364-122-0x0000000007BD0000-0x0000000007C20000-memory.dmp
      Filesize

      320KB

    • memory/2212-123-0x0000000000400000-0x000000000042E000-memory.dmp
      Filesize

      184KB

    • memory/2212-124-0x000000000041EB80-mapping.dmp
    • memory/2212-125-0x0000000001550000-0x0000000001870000-memory.dmp
      Filesize

      3.1MB