Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-05-2024 05:07

General

  • Target

    f49a18388f070afc8f7a17f6053666ba.exe

  • Size

    718KB

  • MD5

    f49a18388f070afc8f7a17f6053666ba

  • SHA1

    d1062e2c38badf9aac1a2c2d0bf4ea7f3e07341b

  • SHA256

    3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e

  • SHA512

    6557e22c3e5542262cb8d9ae6c1a79a17f8ce2b9666dfab3ea2df5acd8c23bda607358569b75454cb49a3d36448c08a1a671923f27c13b2473d5925842a7cd34

  • SSDEEP

    12288:Me0ReLAfP7wD6ZtqzvBzmAqdse00yzr+zdW4WgxUHPp8RGHwAOovhbuigPc20mk1:Me+537wDAtqFmAq500yuZWfK8QrQh

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ht3d

Decoy

derlon.net

46gem.vip

bridal-heart-boutique.com

porarquitectura.com

durkal.online

9916k.vip

nativegarden.net

hoodjac.com

coachwunder.com

jutuowangluo.com

frankmontagna.com

jalenx.com

yhxg.net

brasserie-bro.com

whitecoatprivilege.com

sigmadriving.com

inhkipcmacau.com

freediveexperience.com

52iwin.com

aaditt.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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f49a18388f070afc8f7a17f6053666ba.exe
    "C:\Users\Admin\AppData\Local\Temp\f49a18388f070afc8f7a17f6053666ba.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:448
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zNukUlepyAI.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4960
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zNukUlepyAI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1364.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2784
    • C:\Users\Admin\AppData\Local\Temp\f49a18388f070afc8f7a17f6053666ba.exe
      "C:\Users\Admin\AppData\Local\Temp\f49a18388f070afc8f7a17f6053666ba.exe"
      2⤵
        PID:2968
      • C:\Users\Admin\AppData\Local\Temp\f49a18388f070afc8f7a17f6053666ba.exe
        "C:\Users\Admin\AppData\Local\Temp\f49a18388f070afc8f7a17f6053666ba.exe"
        2⤵
          PID:1964
        • C:\Users\Admin\AppData\Local\Temp\f49a18388f070afc8f7a17f6053666ba.exe
          "C:\Users\Admin\AppData\Local\Temp\f49a18388f070afc8f7a17f6053666ba.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4480
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3240,i,17096020621006928097,15544233752327415349,262144 --variations-seed-version --mojo-platform-channel-handle=4336 /prefetch:8
        1⤵
          PID:4844

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2c13ukx1.pwv.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp1364.tmp

          Filesize

          1KB

          MD5

          d1280c105f30b79317be2be9881f1f52

          SHA1

          020ac800ced09d88eee3adf8bde329cb3ffe82c3

          SHA256

          5ad258a6ca0ff194dad68db87c8d48575a43f5c86f009f03f41f05a8a9c593b8

          SHA512

          6d144502a796d9e9507332a486ffafad20a7fc13b14b88911363561294b1d1ac8ef2a81a7ca9f6154d82d450cdc05c4eaf958d19606958805f0bc6c84f3d6f3c

        • memory/448-6-0x0000000074930000-0x00000000750E0000-memory.dmp

          Filesize

          7.7MB

        • memory/448-3-0x0000000007530000-0x00000000075C2000-memory.dmp

          Filesize

          584KB

        • memory/448-4-0x0000000004AD0000-0x0000000004ADA000-memory.dmp

          Filesize

          40KB

        • memory/448-5-0x0000000007870000-0x000000000790C000-memory.dmp

          Filesize

          624KB

        • memory/448-2-0x0000000007A40000-0x0000000007FE4000-memory.dmp

          Filesize

          5.6MB

        • memory/448-7-0x0000000007630000-0x000000000764E000-memory.dmp

          Filesize

          120KB

        • memory/448-8-0x0000000007790000-0x00000000077A0000-memory.dmp

          Filesize

          64KB

        • memory/448-9-0x0000000007840000-0x0000000007856000-memory.dmp

          Filesize

          88KB

        • memory/448-10-0x0000000008B90000-0x0000000008C06000-memory.dmp

          Filesize

          472KB

        • memory/448-36-0x0000000074930000-0x00000000750E0000-memory.dmp

          Filesize

          7.7MB

        • memory/448-1-0x00000000006E0000-0x000000000079A000-memory.dmp

          Filesize

          744KB

        • memory/448-0-0x000000007493E000-0x000000007493F000-memory.dmp

          Filesize

          4KB

        • memory/4480-25-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB

        • memory/4480-39-0x0000000001030000-0x000000000137A000-memory.dmp

          Filesize

          3.3MB

        • memory/4960-42-0x00000000751C0000-0x000000007520C000-memory.dmp

          Filesize

          304KB

        • memory/4960-65-0x0000000074930000-0x00000000750E0000-memory.dmp

          Filesize

          7.7MB

        • memory/4960-41-0x0000000007090000-0x00000000070C2000-memory.dmp

          Filesize

          200KB

        • memory/4960-21-0x0000000005240000-0x0000000005262000-memory.dmp

          Filesize

          136KB

        • memory/4960-17-0x0000000005340000-0x0000000005968000-memory.dmp

          Filesize

          6.2MB

        • memory/4960-16-0x0000000074930000-0x00000000750E0000-memory.dmp

          Filesize

          7.7MB

        • memory/4960-24-0x0000000005B50000-0x0000000005EA4000-memory.dmp

          Filesize

          3.3MB

        • memory/4960-15-0x0000000004B60000-0x0000000004B96000-memory.dmp

          Filesize

          216KB

        • memory/4960-37-0x0000000006110000-0x000000000612E000-memory.dmp

          Filesize

          120KB

        • memory/4960-18-0x0000000074930000-0x00000000750E0000-memory.dmp

          Filesize

          7.7MB

        • memory/4960-38-0x0000000006140000-0x000000000618C000-memory.dmp

          Filesize

          304KB

        • memory/4960-40-0x000000007FB70000-0x000000007FB80000-memory.dmp

          Filesize

          64KB

        • memory/4960-23-0x0000000005AE0000-0x0000000005B46000-memory.dmp

          Filesize

          408KB

        • memory/4960-22-0x0000000005970000-0x00000000059D6000-memory.dmp

          Filesize

          408KB

        • memory/4960-59-0x0000000007630000-0x0000000007641000-memory.dmp

          Filesize

          68KB

        • memory/4960-52-0x00000000066C0000-0x00000000066DE000-memory.dmp

          Filesize

          120KB

        • memory/4960-54-0x00000000072E0000-0x0000000007383000-memory.dmp

          Filesize

          652KB

        • memory/4960-55-0x0000000007A80000-0x00000000080FA000-memory.dmp

          Filesize

          6.5MB

        • memory/4960-56-0x0000000007430000-0x000000000744A000-memory.dmp

          Filesize

          104KB

        • memory/4960-57-0x00000000074A0000-0x00000000074AA000-memory.dmp

          Filesize

          40KB

        • memory/4960-58-0x00000000076B0000-0x0000000007746000-memory.dmp

          Filesize

          600KB

        • memory/4960-53-0x0000000004D00000-0x0000000004D10000-memory.dmp

          Filesize

          64KB

        • memory/4960-60-0x0000000007660000-0x000000000766E000-memory.dmp

          Filesize

          56KB

        • memory/4960-61-0x0000000007670000-0x0000000007684000-memory.dmp

          Filesize

          80KB

        • memory/4960-62-0x0000000007770000-0x000000000778A000-memory.dmp

          Filesize

          104KB

        • memory/4960-63-0x0000000007750000-0x0000000007758000-memory.dmp

          Filesize

          32KB

        • memory/4960-19-0x0000000074930000-0x00000000750E0000-memory.dmp

          Filesize

          7.7MB