Analysis

  • max time kernel
    110s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    22-10-2021 02:50

General

  • Target

    2d21e970df7a629322de2c466d276d3a36f5bc742800459a76a12a7d71575f88.exe

  • Size

    519KB

  • MD5

    8841b1ae5968f38059f8acc8e53c982a

  • SHA1

    8aca7316435c75b0e8e5f453f9b93572afe64b6b

  • SHA256

    2d21e970df7a629322de2c466d276d3a36f5bc742800459a76a12a7d71575f88

  • SHA512

    994fee7c54b995caf22dfae31f3b6102077e59c49929a426f0b604f55d62c727b01c7c9c8bf8cf53cbcbf9239401554b39665cf8e8868fb57f44ffbe8aa96953

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\2d21e970df7a629322de2c466d276d3a36f5bc742800459a76a12a7d71575f88.exe
    "C:\Users\Admin\AppData\Local\Temp\2d21e970df7a629322de2c466d276d3a36f5bc742800459a76a12a7d71575f88.exe"
    Suspicious use of SetThreadContext
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of WriteProcessMemory
    PID:4332
    • C:\Users\Admin\AppData\Local\Temp\2d21e970df7a629322de2c466d276d3a36f5bc742800459a76a12a7d71575f88.exe
      "C:\Users\Admin\AppData\Local\Temp\2d21e970df7a629322de2c466d276d3a36f5bc742800459a76a12a7d71575f88.exe"
      Suspicious behavior: EnumeratesProcesses
      PID:3864

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Discovery

            Execution

              Exfiltration

                Impact

                  Initial Access

                    Lateral Movement

                      Persistence

                        Privilege Escalation

                          Replay Monitor

                          00:00 00:00

                          Downloads

                          • memory/3864-124-0x0000000000400000-0x000000000042E000-memory.dmp
                          • memory/3864-125-0x000000000041EB80-mapping.dmp
                          • memory/3864-126-0x0000000001490000-0x00000000017B0000-memory.dmp
                          • memory/4332-115-0x0000000000D80000-0x0000000000D81000-memory.dmp
                          • memory/4332-117-0x0000000005A40000-0x0000000005A41000-memory.dmp
                          • memory/4332-118-0x0000000005640000-0x0000000005641000-memory.dmp
                          • memory/4332-119-0x00000000056F0000-0x00000000056F1000-memory.dmp
                          • memory/4332-120-0x0000000005540000-0x0000000005A3E000-memory.dmp
                          • memory/4332-121-0x0000000006430000-0x0000000006437000-memory.dmp
                          • memory/4332-122-0x0000000009360000-0x0000000009361000-memory.dmp
                          • memory/4332-123-0x0000000009310000-0x000000000935F000-memory.dmp