Analysis

  • max time kernel
    146s
  • max time network
    115s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    13-01-2021 10:41

General

  • Target

    b.exe

  • Size

    3.3MB

  • MD5

    30cb872994e8a0a4a635b06bfbe38006

  • SHA1

    02e502ef79ea251f04fa9e02dd1d7639e59c7ddc

  • SHA256

    d0b62e121a89ba8e44b4b71a887dd80df1e4fc746dabc200854622e9ed1fa8cb

  • SHA512

    57bc48f7c2e77d28f13cd52dadeaa24a50a8eafb0316c2b7894e49cbe17fb16f14efe4f7b7568ef3ae40c7e6ec0a07862ec9bd91541be477795f7c113a4816d1

Malware Config

Extracted

Family

formbook

C2

http://www.registeredagentfirm.com/jqc/

Decoy

strahlenschutz.digital

soterppe.com

wlw-hnlt.com

topheadlinetowitness-today.info

droriginals.com

baculatechie.online

definity.finance

weddingmustgoon.com

ludisenofloral.com

kenniscourtureconsignments.com

dl888.net

singledynamics.com

internetmarkaching.com

solidconstruct.site

ip-freight.com

11sxsx.com

incomecontent.com

the343radio.com

kimberlygoedhart.net

dgdoughnuts.net

Signatures

  • Formbook

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

  • Formbook Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b.exe
    "C:\Users\Admin\AppData\Local\Temp\b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:744
    • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
      "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
      2⤵
      • Executes dropped EXE
      PID:1504
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1504 -s 188
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3940

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

    MD5

    6a673bfc3b67ae9782cb31af2f234c68

    SHA1

    7544e89566d91e84e3cd437b9a073e5f6b56566e

    SHA256

    978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

    SHA512

    72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

  • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

    MD5

    6a673bfc3b67ae9782cb31af2f234c68

    SHA1

    7544e89566d91e84e3cd437b9a073e5f6b56566e

    SHA256

    978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

    SHA512

    72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

  • memory/744-9-0x0000000005040000-0x000000000504B000-memory.dmp

    Filesize

    44KB

  • memory/744-6-0x00000000028E0000-0x00000000028FE000-memory.dmp

    Filesize

    120KB

  • memory/744-7-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

    Filesize

    4KB

  • memory/744-8-0x00000000078A0000-0x00000000078A1000-memory.dmp

    Filesize

    4KB

  • memory/744-2-0x0000000073A20000-0x000000007410E000-memory.dmp

    Filesize

    6.9MB

  • memory/744-10-0x0000000005060000-0x0000000005061000-memory.dmp

    Filesize

    4KB

  • memory/744-5-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

    Filesize

    4KB

  • memory/744-3-0x0000000000390000-0x0000000000391000-memory.dmp

    Filesize

    4KB

  • memory/1504-12-0x000000000041EB50-mapping.dmp

  • memory/1504-14-0x0000000000700000-0x000000000072E000-memory.dmp

    Filesize

    184KB

  • memory/3940-15-0x0000000004200000-0x0000000004201000-memory.dmp

    Filesize

    4KB