Analysis

  • max time kernel
    146s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    13-10-2021 09:42

General

  • Target

    7b57c26a8208756f37e8df8331f94610.exe

  • Size

    605KB

  • MD5

    7b57c26a8208756f37e8df8331f94610

  • SHA1

    bfb4a9e25f36ade44b084706da30c3f305d65609

  • SHA256

    0cf11de8a0ce67a46203ae419f2aa7bb988ae3088dc4f33158dccc55b97e4a7d

  • SHA512

    28aa1f10114bec29af3b55aaa17146f5f7daf6814891269c06545a0627bcedf19130b7e5454f2cbdf370525b272e2e6d6ec04c09bcc540903c482e4473025b7f

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b57c26a8208756f37e8df8331f94610.exe
    "C:\Users\Admin\AppData\Local\Temp\7b57c26a8208756f37e8df8331f94610.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:860
    • C:\Users\Admin\AppData\Local\Temp\7b57c26a8208756f37e8df8331f94610.exe
      "C:\Users\Admin\AppData\Local\Temp\7b57c26a8208756f37e8df8331f94610.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1888

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/860-114-0x0000000000D10000-0x0000000000D11000-memory.dmp
    Filesize

    4KB

  • memory/860-116-0x0000000005C20000-0x0000000005C21000-memory.dmp
    Filesize

    4KB

  • memory/860-117-0x00000000057C0000-0x00000000057C1000-memory.dmp
    Filesize

    4KB

  • memory/860-118-0x0000000005720000-0x0000000005721000-memory.dmp
    Filesize

    4KB

  • memory/860-119-0x0000000005720000-0x0000000005C1E000-memory.dmp
    Filesize

    4MB

  • memory/860-120-0x00000000058F0000-0x00000000058F5000-memory.dmp
    Filesize

    20KB

  • memory/860-121-0x0000000007B70000-0x0000000007B71000-memory.dmp
    Filesize

    4KB

  • memory/860-122-0x0000000007C90000-0x0000000007D04000-memory.dmp
    Filesize

    464KB

  • memory/1888-123-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/1888-124-0x000000000041EB80-mapping.dmp
  • memory/1888-125-0x00000000019C0000-0x0000000001CE0000-memory.dmp
    Filesize

    3MB