Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2024 10:26

General

  • Target

    Overdue Account.pdf.exe

  • Size

    670KB

  • MD5

    81937e479c70381a7527b21693ab3e6c

  • SHA1

    fbac04ef1e0315bff71d908496309d731da30c75

  • SHA256

    e48b7b9ba50d500f569024126a2ff8981db13525ff378ea2151ce8d6b7e4e452

  • SHA512

    35b56dce2a110c145a4c4bef02a5e0151835ea1f1d64891e346f77bf3ce4a3cae2b81f098e819183a2f664f28997845a22b071805e76c97a009b2f6241bbaded

  • SSDEEP

    12288:PBB778QJ5RBdmrRwANBlJi/l/XbBzN5L/ObdOC0uCnGbmSAnJGXuY7GzkR:ZBDB0rqclJeNvL/EpV5bmJKu0

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Overdue Account.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Overdue Account.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2008
    • 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\Overdue Account.pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1136
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kpSYqS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3164
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kpSYqS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp94ED.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4568
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:2924
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3844

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    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

      2085b9dda3403c0b769280912cddccd0

      SHA1

      1f9611ccf9c307cd9e603c1f3a37eb38a3d66be4

      SHA256

      01ad680c134feb32049d9a558024c16d319ddcfb774f8d0a63a7967d07208a55

      SHA512

      40938027a78cfac24736a05fdef344fbca5c2121ed3ebcd5f5aeeb13b42bc675e102e34a804d523f84fea47ff5ee8f0612b9e15cb62de264d21d65fef3352f95

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2y1w421t.pgu.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp94ED.tmp
      Filesize

      1KB

      MD5

      04e31a34b7837d487f98cb62d3d381fd

      SHA1

      17d9ab4c95ee9cab9e1b1635cedde45e024a0d6f

      SHA256

      316834d4dbfae52f01a4b9e9f5a7f68a7e02679369acbeb5a54d9628792e196b

      SHA512

      65539c13b5a9904a1e23b31aba6fb4b7195ebf9504dca63eaf0cdc576e395edab01a7878843e7a7724f025c0c20384d1aab4469e03f15b6b75e28be09209a79d

    • memory/1136-75-0x0000000007340000-0x00000000079BA000-memory.dmp
      Filesize

      6.5MB

    • memory/1136-15-0x0000000004470000-0x00000000044A6000-memory.dmp
      Filesize

      216KB

    • memory/1136-53-0x00000000751E0000-0x000000007522C000-memory.dmp
      Filesize

      304KB

    • memory/1136-63-0x0000000005F10000-0x0000000005F2E000-memory.dmp
      Filesize

      120KB

    • memory/1136-74-0x0000000006BD0000-0x0000000006C73000-memory.dmp
      Filesize

      652KB

    • memory/1136-76-0x0000000006CF0000-0x0000000006D0A000-memory.dmp
      Filesize

      104KB

    • memory/1136-79-0x0000000006EF0000-0x0000000006F01000-memory.dmp
      Filesize

      68KB

    • memory/1136-83-0x0000000007030000-0x000000000704A000-memory.dmp
      Filesize

      104KB

    • memory/1136-17-0x0000000004AE0000-0x0000000005108000-memory.dmp
      Filesize

      6.2MB

    • memory/1136-18-0x0000000074940000-0x00000000750F0000-memory.dmp
      Filesize

      7.7MB

    • memory/1136-81-0x0000000006F20000-0x0000000006F2E000-memory.dmp
      Filesize

      56KB

    • memory/1136-19-0x0000000004420000-0x0000000004430000-memory.dmp
      Filesize

      64KB

    • memory/1136-82-0x0000000006F30000-0x0000000006F44000-memory.dmp
      Filesize

      80KB

    • memory/1136-38-0x00000000053C0000-0x0000000005714000-memory.dmp
      Filesize

      3.3MB

    • memory/1136-90-0x0000000074940000-0x00000000750F0000-memory.dmp
      Filesize

      7.7MB

    • memory/1136-52-0x0000000006B90000-0x0000000006BC2000-memory.dmp
      Filesize

      200KB

    • memory/2008-1-0x0000000074940000-0x00000000750F0000-memory.dmp
      Filesize

      7.7MB

    • memory/2008-2-0x0000000005F20000-0x00000000064C4000-memory.dmp
      Filesize

      5.6MB

    • memory/2008-3-0x00000000058B0000-0x0000000005942000-memory.dmp
      Filesize

      584KB

    • memory/2008-4-0x0000000005AB0000-0x0000000005AC0000-memory.dmp
      Filesize

      64KB

    • memory/2008-16-0x0000000074940000-0x00000000750F0000-memory.dmp
      Filesize

      7.7MB

    • memory/2008-20-0x0000000005AB0000-0x0000000005AC0000-memory.dmp
      Filesize

      64KB

    • memory/2008-7-0x0000000005AA0000-0x0000000005AAE000-memory.dmp
      Filesize

      56KB

    • memory/2008-5-0x0000000005880000-0x000000000588A000-memory.dmp
      Filesize

      40KB

    • memory/2008-10-0x0000000006D70000-0x0000000006E0C000-memory.dmp
      Filesize

      624KB

    • memory/2008-0-0x0000000000F70000-0x000000000101A000-memory.dmp
      Filesize

      680KB

    • memory/2008-9-0x0000000006B00000-0x0000000006B82000-memory.dmp
      Filesize

      520KB

    • memory/2008-8-0x0000000005EC0000-0x0000000005ED6000-memory.dmp
      Filesize

      88KB

    • memory/2008-49-0x0000000074940000-0x00000000750F0000-memory.dmp
      Filesize

      7.7MB

    • memory/2008-6-0x0000000005EA0000-0x0000000005EB8000-memory.dmp
      Filesize

      96KB

    • memory/3164-91-0x0000000074940000-0x00000000750F0000-memory.dmp
      Filesize

      7.7MB

    • memory/3164-23-0x0000000004A70000-0x0000000004A80000-memory.dmp
      Filesize

      64KB

    • memory/3164-51-0x0000000005EB0000-0x0000000005EFC000-memory.dmp
      Filesize

      304KB

    • memory/3164-77-0x00000000071A0000-0x00000000071AA000-memory.dmp
      Filesize

      40KB

    • memory/3164-78-0x00000000073B0000-0x0000000007446000-memory.dmp
      Filesize

      600KB

    • memory/3164-32-0x00000000057E0000-0x0000000005846000-memory.dmp
      Filesize

      408KB

    • memory/3164-25-0x0000000004E50000-0x0000000004E72000-memory.dmp
      Filesize

      136KB

    • memory/3164-26-0x0000000004F70000-0x0000000004FD6000-memory.dmp
      Filesize

      408KB

    • memory/3164-50-0x0000000005D10000-0x0000000005D2E000-memory.dmp
      Filesize

      120KB

    • memory/3164-84-0x0000000007450000-0x0000000007458000-memory.dmp
      Filesize

      32KB

    • memory/3164-64-0x00000000751E0000-0x000000007522C000-memory.dmp
      Filesize

      304KB

    • memory/3164-24-0x0000000004A70000-0x0000000004A80000-memory.dmp
      Filesize

      64KB

    • memory/3164-22-0x0000000074940000-0x00000000750F0000-memory.dmp
      Filesize

      7.7MB

    • memory/3844-39-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/3844-92-0x0000000006200000-0x0000000006250000-memory.dmp
      Filesize

      320KB