Analysis

  • max time kernel
    82s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    06-07-2021 10:04

General

  • Target

    c71f136a10c7c2f067f0a551a48f8ff6.exe

  • Size

    886KB

  • MD5

    c71f136a10c7c2f067f0a551a48f8ff6

  • SHA1

    a3bfac3f71eb6b1e1519d42ec8e01f4aff4d8d5a

  • SHA256

    8a8cc0347be5e13c27bbb82822db989e8c47896d8e23944a8f5f419f4b6989ee

  • SHA512

    11623a0118b5cb78ae77ec9c5f119e2c530614c295b297d27858b188846555918b8fdf4eec8a5fb04952ffa6af35bdc4c584c2805de9e991bf12fb3ca2db1d90

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.share-event.info/wlns/

Decoy

travelagentngapali.com

cassandraclub.com

yuanhenghuanwei.com

rellimsewil.com

servingsunshine.com

guniverse.net

livingonresidual.net

fourmid.com

batesandmills.com

produtos-servicos.website

pokemonteambuilder.team

ticeye.com

latituderc.com

xn--ok0bv0wfrj.com

strinix.com

nycmama.com

sljy8888.com

lifeinsurancerd.com

osdbapi.com

xydwnzavp.asia

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 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c71f136a10c7c2f067f0a551a48f8ff6.exe
    "C:\Users\Admin\AppData\Local\Temp\c71f136a10c7c2f067f0a551a48f8ff6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Users\Admin\AppData\Local\Temp\c71f136a10c7c2f067f0a551a48f8ff6.exe
      "C:\Users\Admin\AppData\Local\Temp\c71f136a10c7c2f067f0a551a48f8ff6.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:3760

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1696-114-0x0000000000560000-0x0000000000561000-memory.dmp
    Filesize

    4KB

  • memory/1696-116-0x0000000004E70000-0x0000000004E71000-memory.dmp
    Filesize

    4KB

  • memory/1696-117-0x0000000005410000-0x0000000005411000-memory.dmp
    Filesize

    4KB

  • memory/1696-118-0x0000000004FB0000-0x0000000004FB1000-memory.dmp
    Filesize

    4KB

  • memory/1696-119-0x0000000004E50000-0x0000000004E51000-memory.dmp
    Filesize

    4KB

  • memory/1696-120-0x0000000005050000-0x0000000005051000-memory.dmp
    Filesize

    4KB

  • memory/1696-121-0x0000000004F10000-0x000000000540E000-memory.dmp
    Filesize

    5.0MB

  • memory/1696-122-0x0000000005220000-0x000000000522F000-memory.dmp
    Filesize

    60KB

  • memory/1696-123-0x00000000086F0000-0x000000000876A000-memory.dmp
    Filesize

    488KB

  • memory/1696-124-0x000000000AD60000-0x000000000ADA1000-memory.dmp
    Filesize

    260KB

  • memory/3760-125-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/3760-126-0x000000000041EB50-mapping.dmp
  • memory/3760-128-0x0000000001720000-0x0000000001A40000-memory.dmp
    Filesize

    3.1MB