Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-09-2024 12:33

General

  • Target

    37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe

  • Size

    741KB

  • MD5

    a80b0f238e276d18a60b69987e3971ac

  • SHA1

    505fff2c677555ed2a6faaff2cd070829c1e545e

  • SHA256

    37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30

  • SHA512

    8dbb433c2f5dcec0bea4579ac475b8c9e9cf26e3cb75aad1e3b70a889331e9ad8eedb735422a5f73496b7105fb4ec5a29acaef3cceeece2edaa526685d752543

  • SSDEEP

    12288:cIzjLf30WH0TwOqp06yaHZQla0tJfFFg4vqtwnZS8Qp7xQ6JtpOQ5tRyMJTQA6OH:Xjj0ywkpNXWlTJfF1CeWxxxT9tRWAtH

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hy08

Decoy

weazc.top

servoceimmpajhnuz.info

vqemkdhi.xyz

wergol.com

spa-mk.com

rtpsid88.life

tatetits.fun

raidsa.xyz

suojiansuode.net

jointhejunction.com

wudai.net

typeboot.shop

mksport-app.com

miocloud.ovh

taipan77pandan.com

wwwhg58a.com

khuahamiksai31.pro

carpedatumllc.net

safebinders.com

krx21.com

Signatures

  • Formbook

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

  • Formbook payload 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe
    "C:\Users\Admin\AppData\Local\Temp\37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3860
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fECBldIROsE.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2952
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fECBldIROsE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB32.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4808
    • C:\Users\Admin\AppData\Local\Temp\37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe
      "C:\Users\Admin\AppData\Local\Temp\37712bec3e83a2af5e4c4bd823e6bc474b121d3bcbac979232e074cf9ec62b30.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t3vzxrgv.jvl.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpBB32.tmp

    Filesize

    1KB

    MD5

    2946e0f2a25af3eebaa652e796e90490

    SHA1

    f4181a522cbe064bbfacaf2d603671fba80aaa7c

    SHA256

    490fa9398398843b5961a14c666224e38e47c0effe8351d243c026498a275981

    SHA512

    275426bed04349171426af896a844753fadeccb9021f47f2f376aab2fb1708fb5a64df1aff6934cb960a9ebbeee167e8cb8c0d737ac34ac7a2e121bd5a0d02d8

  • memory/2952-18-0x0000000005090000-0x00000000050C6000-memory.dmp

    Filesize

    216KB

  • memory/2952-63-0x0000000007B70000-0x0000000007B84000-memory.dmp

    Filesize

    80KB

  • memory/2952-65-0x0000000007C50000-0x0000000007C58000-memory.dmp

    Filesize

    32KB

  • memory/2952-20-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/2952-61-0x0000000007B30000-0x0000000007B41000-memory.dmp

    Filesize

    68KB

  • memory/2952-60-0x0000000007BB0000-0x0000000007C46000-memory.dmp

    Filesize

    600KB

  • memory/2952-59-0x00000000079A0000-0x00000000079AA000-memory.dmp

    Filesize

    40KB

  • memory/2952-58-0x0000000007930000-0x000000000794A000-memory.dmp

    Filesize

    104KB

  • memory/2952-57-0x0000000007F80000-0x00000000085FA000-memory.dmp

    Filesize

    6.5MB

  • memory/2952-56-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/2952-55-0x00000000077F0000-0x0000000007893000-memory.dmp

    Filesize

    652KB

  • memory/2952-54-0x0000000006BC0000-0x0000000006BDE000-memory.dmp

    Filesize

    120KB

  • memory/2952-40-0x0000000006610000-0x000000000662E000-memory.dmp

    Filesize

    120KB

  • memory/2952-64-0x0000000007C70000-0x0000000007C8A000-memory.dmp

    Filesize

    104KB

  • memory/2952-62-0x0000000007B60000-0x0000000007B6E000-memory.dmp

    Filesize

    56KB

  • memory/2952-21-0x0000000005700000-0x0000000005D28000-memory.dmp

    Filesize

    6.2MB

  • memory/2952-22-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/2952-44-0x00000000724B0000-0x00000000724FC000-memory.dmp

    Filesize

    304KB

  • memory/2952-24-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/2952-42-0x0000000006BE0000-0x0000000006C12000-memory.dmp

    Filesize

    200KB

  • memory/2952-43-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/2952-33-0x0000000005F10000-0x0000000005F76000-memory.dmp

    Filesize

    408KB

  • memory/2952-34-0x0000000005FF0000-0x0000000006056000-memory.dmp

    Filesize

    408KB

  • memory/2952-39-0x0000000006160000-0x00000000064B4000-memory.dmp

    Filesize

    3.3MB

  • memory/2952-68-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/2952-41-0x00000000066A0000-0x00000000066EC000-memory.dmp

    Filesize

    304KB

  • memory/3860-11-0x000000007485E000-0x000000007485F000-memory.dmp

    Filesize

    4KB

  • memory/3860-8-0x0000000005160000-0x0000000005172000-memory.dmp

    Filesize

    72KB

  • memory/3860-1-0x00000000005A0000-0x000000000065E000-memory.dmp

    Filesize

    760KB

  • memory/3860-2-0x0000000005540000-0x0000000005AE4000-memory.dmp

    Filesize

    5.6MB

  • memory/3860-13-0x00000000060F0000-0x0000000006166000-memory.dmp

    Filesize

    472KB

  • memory/3860-12-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/3860-0-0x000000007485E000-0x000000007485F000-memory.dmp

    Filesize

    4KB

  • memory/3860-10-0x0000000005420000-0x0000000005438000-memory.dmp

    Filesize

    96KB

  • memory/3860-9-0x00000000052E0000-0x0000000005302000-memory.dmp

    Filesize

    136KB

  • memory/3860-27-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/3860-7-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/3860-6-0x0000000005380000-0x000000000541C000-memory.dmp

    Filesize

    624KB

  • memory/3860-5-0x0000000005120000-0x000000000512A000-memory.dmp

    Filesize

    40KB

  • memory/3860-4-0x0000000005AF0000-0x0000000005E44000-memory.dmp

    Filesize

    3.3MB

  • memory/3860-3-0x0000000005070000-0x0000000005102000-memory.dmp

    Filesize

    584KB

  • memory/4440-23-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/4440-26-0x00000000011B0000-0x00000000014FA000-memory.dmp

    Filesize

    3.3MB