Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 12:50

General

  • Target

    PO - 04755 .bat.exe

  • Size

    541KB

  • MD5

    37f3b2a7f84422ea9fce13bcc170461b

  • SHA1

    b2d8ac2774b12ffc4412435224398f3909bc8ceb

  • SHA256

    7cd0f4968e27515f466f0a6e6967dbc9bca2c9b75a9592e38709a2ca884c6d71

  • SHA512

    604aeeaf52c3aaab4e1a46ec2879d7b8e6f68ce0168e2f7ffc4f970b1633a2752959816bde10bbe19946a0ae7a2e9d373979554729fc7ed9366e1c5516b6639a

  • SSDEEP

    12288:YEuIQ8LBZ0BJxONHZZZxa3qBHkKbdUKSaEpkAE5YWOzxRwzPE58bm:XlXBWDxOpxk3qBHkcWgEppEWzxRw458K

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

45er

Decoy

depotpulsa.com

k2bilbao.online

bb4uoficial.com

rwc666.club

us-pservice.cyou

tricegottreats.com

zsystems.pro

qudouyin6.com

sfumaturedamore.net

pcetyy.icu

notbokin.online

beqprod.tech

flipbuilding.com

errormitigationzoo.com

zj5u603.xyz

jezzatravel.com

zmdniavysyi.shop

quinnsteele.com

522334.com

outdoorshopping.net

Signatures

  • Formbook

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

  • Formbook payload 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 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 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 64 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3508
    • C:\Users\Admin\AppData\Local\Temp\PO - 04755 .bat.exe
      "C:\Users\Admin\AppData\Local\Temp\PO - 04755 .bat.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3192
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO - 04755 .bat.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1396
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iRfUxRRiZtkySe.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1424
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iRfUxRRiZtkySe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8FCC.tmp"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4604
      • C:\Users\Admin\AppData\Local\Temp\PO - 04755 .bat.exe
        "C:\Users\Admin\AppData\Local\Temp\PO - 04755 .bat.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1520
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\SysWOW64\svchost.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1044
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\PO - 04755 .bat.exe"
        3⤵
          PID:4192

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      c4bc95ee1ef7c1a0592b7b36aa8219da

      SHA1

      bf943311795528ff2d358e5c74b702c0a6621a29

      SHA256

      77a27df281a6a1a6b920ed2c17c553676adc66d8cdec05d8da899ee17783c630

      SHA512

      73c310b256b876f9c6415ff5e161c8fba0ca4c5ea8ca7108651c7f71699fae9db381c800730128d32154545cd8083c502468a0cb1580852ceac068814d233ceb

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qntlmf0y.4lp.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp8FCC.tmp

      Filesize

      1KB

      MD5

      710b721c852be7b0259c61fd37b78aeb

      SHA1

      0ed5466076b95556e043310b7898f4ab7386999a

      SHA256

      5d59a86e6e56c746d3e728a3b22f9d4067ace038729efc9b9f9debdcb0e04c4a

      SHA512

      aac58bba792d6aa6dbbb3eb27a7be8b42eee7cff2ddc64817809f7354c47aa7937d7e670d9ac3c32ec01d5fc2b764092132d83c2fc2d204de3c49350574c374f

    • memory/1044-96-0x0000000000530000-0x000000000055F000-memory.dmp

      Filesize

      188KB

    • memory/1044-87-0x00000000006A0000-0x00000000006AE000-memory.dmp

      Filesize

      56KB

    • memory/1044-88-0x00000000006A0000-0x00000000006AE000-memory.dmp

      Filesize

      56KB

    • memory/1396-16-0x0000000004A70000-0x0000000004AA6000-memory.dmp

      Filesize

      216KB

    • memory/1396-21-0x00000000057F0000-0x0000000005856000-memory.dmp

      Filesize

      408KB

    • memory/1396-84-0x0000000007500000-0x0000000007514000-memory.dmp

      Filesize

      80KB

    • memory/1396-83-0x00000000074F0000-0x00000000074FE000-memory.dmp

      Filesize

      56KB

    • memory/1396-80-0x0000000007130000-0x000000000713A000-memory.dmp

      Filesize

      40KB

    • memory/1396-54-0x0000000005FC0000-0x000000000600C000-memory.dmp

      Filesize

      304KB

    • memory/1396-56-0x0000000075970000-0x00000000759BC000-memory.dmp

      Filesize

      304KB

    • memory/1396-19-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/1396-18-0x00000000051C0000-0x00000000057E8000-memory.dmp

      Filesize

      6.2MB

    • memory/1396-85-0x0000000007600000-0x000000000761A000-memory.dmp

      Filesize

      104KB

    • memory/1396-22-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/1396-20-0x0000000004EF0000-0x0000000004F12000-memory.dmp

      Filesize

      136KB

    • memory/1396-23-0x0000000005860000-0x00000000058C6000-memory.dmp

      Filesize

      408KB

    • memory/1396-24-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/1396-86-0x00000000075E0000-0x00000000075E8000-memory.dmp

      Filesize

      32KB

    • memory/1396-30-0x00000000059D0000-0x0000000005D24000-memory.dmp

      Filesize

      3.3MB

    • memory/1396-95-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/1396-66-0x0000000006530000-0x000000000654E000-memory.dmp

      Filesize

      120KB

    • memory/1396-67-0x0000000006F60000-0x0000000007003000-memory.dmp

      Filesize

      652KB

    • memory/1396-55-0x0000000006560000-0x0000000006592000-memory.dmp

      Filesize

      200KB

    • memory/1424-78-0x0000000007B70000-0x00000000081EA000-memory.dmp

      Filesize

      6.5MB

    • memory/1424-79-0x0000000007520000-0x000000000753A000-memory.dmp

      Filesize

      104KB

    • memory/1424-91-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/1424-53-0x0000000006200000-0x000000000621E000-memory.dmp

      Filesize

      120KB

    • memory/1424-46-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/1424-82-0x0000000007720000-0x0000000007731000-memory.dmp

      Filesize

      68KB

    • memory/1424-68-0x0000000075970000-0x00000000759BC000-memory.dmp

      Filesize

      304KB

    • memory/1424-49-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/1424-42-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/1424-81-0x00000000077A0000-0x0000000007836000-memory.dmp

      Filesize

      600KB

    • memory/1520-48-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/3192-6-0x0000000006B20000-0x000000000704C000-memory.dmp

      Filesize

      5.2MB

    • memory/3192-8-0x0000000005DC0000-0x0000000005E4A000-memory.dmp

      Filesize

      552KB

    • memory/3192-17-0x00000000750EE000-0x00000000750EF000-memory.dmp

      Filesize

      4KB

    • memory/3192-47-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/3192-0-0x00000000750EE000-0x00000000750EF000-memory.dmp

      Filesize

      4KB

    • memory/3192-9-0x0000000005ED0000-0x0000000005EE0000-memory.dmp

      Filesize

      64KB

    • memory/3192-11-0x0000000006870000-0x00000000068E6000-memory.dmp

      Filesize

      472KB

    • memory/3192-7-0x0000000005D20000-0x0000000005DBC000-memory.dmp

      Filesize

      624KB

    • memory/3192-10-0x0000000006020000-0x000000000602C000-memory.dmp

      Filesize

      48KB

    • memory/3192-5-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/3192-51-0x00000000750E0000-0x0000000075890000-memory.dmp

      Filesize

      7.7MB

    • memory/3192-4-0x0000000005A40000-0x0000000005A4A000-memory.dmp

      Filesize

      40KB

    • memory/3192-3-0x0000000005A90000-0x0000000005B22000-memory.dmp

      Filesize

      584KB

    • memory/3192-2-0x0000000006040000-0x00000000065E4000-memory.dmp

      Filesize

      5.6MB

    • memory/3192-1-0x0000000000FD0000-0x000000000105E000-memory.dmp

      Filesize

      568KB

    • memory/3508-100-0x00000000087C0000-0x00000000088E2000-memory.dmp

      Filesize

      1.1MB