Analysis

  • max time kernel
    145s
  • max time network
    137s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    10-05-2021 21:14

General

  • Target

    MSIC170.exe

  • Size

    226KB

  • MD5

    2eb5d3ef129f1a260919b4af6911a228

  • SHA1

    5abb21082895b7d7d2a454b3a8080d4779a2ed5c

  • SHA256

    d348cbf91ed1e466a286b17f93bf3fd27bb01de6ba91c76bf586788bf16876cb

  • SHA512

    9c200d65f35cd6148897ca19d92563c1210abfb614e21d7f0afb749daee1b690e892ae5867d90b8ca69c77fc6b71d57325cb9f04e9c79917477537f5a8a8da5a

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.craftsman-vail.com/cca/

Decoy

whenpigsflyhigh.com

artistiklounge.com

tinytrendstique.com

projektpartner-ag.com

charvelevh.com

easycompliances.net

zengheqiye.com

professionalmallorca.com

bonzerstudio.com

nelivo.com

yangxeric.com

aredntech.com

twincitieshousingmarket.com

allshadesunscreen.com

xiang-life.net

qmcp00011.com

lindsayeandmarkv.com

fbcsbvsbvsjbvjs.com

saveonthrivelife.com

newdpo.com

Signatures

  • Formbook

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

  • Formbook Payload 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Users\Admin\AppData\Local\Temp\MSIC170.exe
      "C:\Users\Admin\AppData\Local\Temp\MSIC170.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4080
      • C:\Users\Admin\AppData\Local\Temp\MSIC170.exe
        "C:\Users\Admin\AppData\Local\Temp\MSIC170.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:4024
    • C:\Windows\SysWOW64\colorcpl.exe
      "C:\Windows\SysWOW64\colorcpl.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3260
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\MSIC170.exe"
        3⤵
          PID:412

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\nsg17F3.tmp\qae1fnryutx.dll

      MD5

      e2552ee6ee0b13489230453d6ef860f3

      SHA1

      043969b1a93aa5c30cced7b59f305c0f264f3c15

      SHA256

      977f2af0e86ce5aa922ae960a24284f199c46152db8664cf8f0b004b96df87d3

      SHA512

      5d2c7001c5529e35ef001d617a206c85200cfd5f51b1ec406a6ecc2cd94e3eff3760f9fb808b4c033240e754501b228f9c79811c1ebad881ccbe9403bd686920

    • memory/412-122-0x0000000000000000-mapping.dmp

    • memory/3008-120-0x0000000005280000-0x0000000005383000-memory.dmp

      Filesize

      1.0MB

    • memory/3008-127-0x0000000002CB0000-0x0000000002D69000-memory.dmp

      Filesize

      740KB

    • memory/3260-124-0x0000000002F00000-0x0000000002F2E000-memory.dmp

      Filesize

      184KB

    • memory/3260-121-0x0000000000000000-mapping.dmp

    • memory/3260-123-0x0000000000830000-0x0000000000849000-memory.dmp

      Filesize

      100KB

    • memory/3260-125-0x00000000044B0000-0x00000000047D0000-memory.dmp

      Filesize

      3.1MB

    • memory/3260-126-0x0000000004870000-0x0000000004903000-memory.dmp

      Filesize

      588KB

    • memory/4024-118-0x0000000000A00000-0x0000000000D20000-memory.dmp

      Filesize

      3.1MB

    • memory/4024-119-0x00000000009E0000-0x00000000009F4000-memory.dmp

      Filesize

      80KB

    • memory/4024-117-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4024-115-0x000000000041EB70-mapping.dmp

    • memory/4080-116-0x00000000028A0000-0x00000000028C3000-memory.dmp

      Filesize

      140KB