Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2024, 01:33

General

  • Target

    Purchase order.exe

  • Size

    1.4MB

  • MD5

    4c363afc82b0757d2723ff1287ab85de

  • SHA1

    eae78234d3125edb5e161641b1c61dfab9456a46

  • SHA256

    0787749d9897612314975e2943139157efcff4dbf604323d3d950c76b7555719

  • SHA512

    c202cb6c3b8bef7cb556c335595c03e7da412e00466491e3bbbec15391bec8250d944ada1eb4b4e5d6215d39c2f28996a025a6de78243570382cf188744d8ac3

  • SSDEEP

    24576:szSWNKs08nmbdXiQsGgJF2B+xaJ/ncPUoN0eaxn7wymHinDVw2iTYYuX0J:gSPGyXi0gbKCikPPN0fxn7NmHinDVw2e

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4092
    • 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\Purchase order.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3480
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\IxumRsOtTdrVAu.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1908
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IxumRsOtTdrVAu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAF89.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3204
    • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
      2⤵
        PID:2636
      • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
        "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
        2⤵
          PID:2292
        • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
          "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
          2⤵
          • Checks computer location settings
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3728
          • 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\Purchase order.exe"
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1432
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wlBldyvi.exe"
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4548
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wlBldyvi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE697.tmp"
            3⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:3956
          • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
            "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:768

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      • 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

        528B

        MD5

        6fb1ea4121aa2f2192f82e8583e185c9

        SHA1

        cd38b15ccb84c20af07ccca29e0f9aba0c3bec41

        SHA256

        52e36174557dd2243d8a3813797d230c46945389be1ec540c2789f2879dba34f

        SHA512

        fc6ac9d52d7adea83fa00078cdb6dff2a990f02c4a722e868b176712d9e25d3b421e4fa7c307dbab0ab0203a64cd34c7c41d9435b32ade30f3e059c0995be847

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

        Filesize

        18KB

        MD5

        b52b07d79345a04f68be6f01e84a7c13

        SHA1

        a017ec4abe8130f58b86e5df498d9b0da32a3d9f

        SHA256

        f7001ac98ad0c38f8b038df274e08a815d6aa5c620cad136c0ec915a7c265dd9

        SHA512

        bad76c20094eb1abbc8b66f8f7a8988251b92725bd19a7c333f802806e33a11857d486ea68300b356805cf3c95708f58794f03ab9083bbde720464934fa81231

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_itcdfhtb.5ay.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpAF89.tmp

        Filesize

        1KB

        MD5

        76e75c37e4d7b46aa0618ef1eee62d3f

        SHA1

        b56ab8cc853c0e52cfb2db2604a58a578fda863d

        SHA256

        16274987a9ef3dfdd27f56d9034fc9a0d0db200a411bd7119523550457ce089c

        SHA512

        6d297a85bba227cd0968cd5dab648a8bc3472312ec316c17011069491dbc7231ce320dd736168b68ddfd076cd7bd03d3a8d2517c52e4b3019a46c6aa41a4b697

      • C:\Users\Admin\AppData\Local\Temp\tmpE697.tmp

        Filesize

        1KB

        MD5

        4900079d1157f93c9ade3a93658b90c0

        SHA1

        48014a1ff3fa7be954abfb29b3cbffae25bf7b43

        SHA256

        6dea69f4c50148e7523eb30c1d187ce458a63e26160a89682d547e4c8885c1a5

        SHA512

        2dac6a94da2c0eeb20a4c14f458b459b61caba6d7f6245b4aab4f2c3c67247d0f6522491bd306a90432a235ac401a11679a096263726ecdf9bfce08f9523499e

      • C:\Users\Admin\AppData\Roaming\wlBldyvi.exe

        Filesize

        1.4MB

        MD5

        4c363afc82b0757d2723ff1287ab85de

        SHA1

        eae78234d3125edb5e161641b1c61dfab9456a46

        SHA256

        0787749d9897612314975e2943139157efcff4dbf604323d3d950c76b7555719

        SHA512

        c202cb6c3b8bef7cb556c335595c03e7da412e00466491e3bbbec15391bec8250d944ada1eb4b4e5d6215d39c2f28996a025a6de78243570382cf188744d8ac3

      • memory/768-146-0x0000000006D30000-0x0000000006D80000-memory.dmp

        Filesize

        320KB

      • memory/768-106-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/1432-120-0x00000000710D0000-0x000000007111C000-memory.dmp

        Filesize

        304KB

      • memory/1432-119-0x0000000005BE0000-0x0000000005C2C000-memory.dmp

        Filesize

        304KB

      • memory/1432-108-0x00000000056D0000-0x0000000005A24000-memory.dmp

        Filesize

        3.3MB

      • memory/1908-73-0x00000000064C0000-0x00000000064DE000-memory.dmp

        Filesize

        120KB

      • memory/1908-19-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/1908-82-0x00000000074F0000-0x000000000750A000-memory.dmp

        Filesize

        104KB

      • memory/1908-77-0x0000000007220000-0x000000000722A000-memory.dmp

        Filesize

        40KB

      • memory/1908-76-0x00000000071B0000-0x00000000071CA000-memory.dmp

        Filesize

        104KB

      • memory/1908-75-0x00000000077F0000-0x0000000007E6A000-memory.dmp

        Filesize

        6.5MB

      • memory/1908-48-0x0000000005E90000-0x0000000005EAE000-memory.dmp

        Filesize

        120KB

      • memory/1908-74-0x0000000007080000-0x0000000007123000-memory.dmp

        Filesize

        652KB

      • memory/1908-89-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/1908-80-0x00000000073E0000-0x00000000073EE000-memory.dmp

        Filesize

        56KB

      • memory/1908-63-0x0000000075220000-0x000000007526C000-memory.dmp

        Filesize

        304KB

      • memory/1908-24-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/1908-49-0x0000000005EC0000-0x0000000005F0C000-memory.dmp

        Filesize

        304KB

      • memory/3480-18-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/3480-83-0x0000000007E60000-0x0000000007E68000-memory.dmp

        Filesize

        32KB

      • memory/3480-90-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/3480-15-0x0000000005270000-0x00000000052A6000-memory.dmp

        Filesize

        216KB

      • memory/3480-16-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/3480-53-0x0000000075220000-0x000000007526C000-memory.dmp

        Filesize

        304KB

      • memory/3480-25-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/3480-52-0x0000000007790000-0x00000000077C2000-memory.dmp

        Filesize

        200KB

      • memory/3480-31-0x0000000006210000-0x0000000006564000-memory.dmp

        Filesize

        3.3MB

      • memory/3480-23-0x00000000061A0000-0x0000000006206000-memory.dmp

        Filesize

        408KB

      • memory/3480-21-0x0000000005950000-0x0000000005972000-memory.dmp

        Filesize

        136KB

      • memory/3480-22-0x0000000006130000-0x0000000006196000-memory.dmp

        Filesize

        408KB

      • memory/3480-78-0x0000000007DC0000-0x0000000007E56000-memory.dmp

        Filesize

        600KB

      • memory/3480-79-0x0000000007D40000-0x0000000007D51000-memory.dmp

        Filesize

        68KB

      • memory/3480-17-0x00000000059D0000-0x0000000005FF8000-memory.dmp

        Filesize

        6.2MB

      • memory/3480-81-0x0000000007D80000-0x0000000007D94000-memory.dmp

        Filesize

        80KB

      • memory/3728-51-0x0000000005760000-0x0000000005770000-memory.dmp

        Filesize

        64KB

      • memory/3728-91-0x0000000007210000-0x0000000007292000-memory.dmp

        Filesize

        520KB

      • memory/3728-45-0x0000000000400000-0x00000000004D4000-memory.dmp

        Filesize

        848KB

      • memory/3728-50-0x0000000005A30000-0x0000000005AD0000-memory.dmp

        Filesize

        640KB

      • memory/4092-6-0x00000000051B0000-0x000000000524C000-memory.dmp

        Filesize

        624KB

      • memory/4092-5-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/4092-47-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/4092-9-0x0000000074990000-0x0000000075140000-memory.dmp

        Filesize

        7.7MB

      • memory/4092-8-0x000000007499E000-0x000000007499F000-memory.dmp

        Filesize

        4KB

      • memory/4092-7-0x0000000005160000-0x0000000005172000-memory.dmp

        Filesize

        72KB

      • memory/4092-0-0x000000007499E000-0x000000007499F000-memory.dmp

        Filesize

        4KB

      • memory/4092-10-0x0000000006820000-0x0000000006934000-memory.dmp

        Filesize

        1.1MB

      • memory/4092-4-0x0000000004F40000-0x0000000004F4A000-memory.dmp

        Filesize

        40KB

      • memory/4092-1-0x0000000000330000-0x000000000049A000-memory.dmp

        Filesize

        1.4MB

      • memory/4092-2-0x00000000054D0000-0x0000000005A74000-memory.dmp

        Filesize

        5.6MB

      • memory/4092-3-0x0000000004E70000-0x0000000004F02000-memory.dmp

        Filesize

        584KB

      • memory/4548-141-0x0000000007030000-0x0000000007041000-memory.dmp

        Filesize

        68KB

      • memory/4548-142-0x0000000007070000-0x0000000007084000-memory.dmp

        Filesize

        80KB

      • memory/4548-139-0x0000000006D50000-0x0000000006DF3000-memory.dmp

        Filesize

        652KB

      • memory/4548-121-0x00000000710D0000-0x000000007111C000-memory.dmp

        Filesize

        304KB