Analysis

  • max time kernel
    132s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-09-2024 17:57

General

  • Target

    Purchase order.exe

  • Size

    1.5MB

  • MD5

    fb3ad7e9cb5938ad1af8facf52693b27

  • SHA1

    4a45c5429a503e8730ebc5261441e91b963510d1

  • SHA256

    d5d6f7922d87a58322e5d4ace6819497d0942b3b22dc10c52f5a37cad8e42793

  • SHA512

    bf4dd0c6a664e3e4b3fd584a5bc11d55fd874eabceee066f78ea5eb6ce0ab25fb08732cb1eb8baa96beae173474ff4f761b453a8e8544171e16703b1acbf1b60

  • SSDEEP

    24576:8IFcjHUVcxTE59dcvuc8kXeRYPps4GY4a9qJVX8ScEhAs3PseK0dHosEfzbm:8IFczdarcW/hySXYh9UPvhAKPFFOsw

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 19 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:2444
    • 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:3536
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\eouOCEx.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4836
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eouOCEx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp46C8.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2712
    • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
      2⤵
        PID:2512
      • C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
        "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
        2⤵
          PID:1568
        • 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:3996
          • 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:4116
          • 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:2224
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wlBldyvi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7E43.tmp"
            3⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:3864
          • 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:1628
      • 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 --field-trial-handle=4404,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=1320 /prefetch:8
        1⤵
          PID:4556

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        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

          968cb9309758126772781b83adb8a28f

          SHA1

          8da30e71accf186b2ba11da1797cf67f8f78b47c

          SHA256

          92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

          SHA512

          4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

          Filesize

          18KB

          MD5

          ea943fc83035c805c76eb93ef4140a74

          SHA1

          7cfddade1911ca69d44812b1272c886d4abed1c5

          SHA256

          adb8688cf1b8b887b16d74aa9963226c572e85add96f7050ccebe71ddb18ca81

          SHA512

          c3ebd0fd80e7ae980324a2fc85219fe280fd4862275a858b7ef69710af112b6571d71e7b70a0343279533ed4ca44c05fa1dc3adbc03819e6447c0479bd1e3feb

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

          Filesize

          18KB

          MD5

          94454c417c93552549c8869febcc187b

          SHA1

          9c96ab70393a1bb8d08e5cbb9f33c22b170fe7a8

          SHA256

          90e13057fb808f5fafc1b1832b34564b2b1edfea497cf439613c0e9e9831b41d

          SHA512

          e60650780bb978b9880a3785e87152dc0fca53c523c2a3bfca0a23bc740b56f878d2a8620ccd9912f7a6bcff60f3155956c369058a8e5c87f124662ca2456404

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aow13at4.mlw.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp46C8.tmp

          Filesize

          1KB

          MD5

          e89b580ff7d68e8e734b2d53af37cc5c

          SHA1

          a5db016551fc83e81c3b687541b5429038bf403f

          SHA256

          5b4551555030f7f7674d982e78d4acee8efb80e22c2124d4ba747fc35637b825

          SHA512

          4ebced4cd5895298c3cc4999be0210af33a2de9a97373b98fc0cee339a246655f57421254fd0d06255c581f3dfc65469d886fb48ffcf7061ddeed5f791dbdc18

        • C:\Users\Admin\AppData\Local\Temp\tmp7E43.tmp

          Filesize

          1KB

          MD5

          7a3f94d73b9e807ac2b4fd8388e7e185

          SHA1

          1b6e50602a4cde863ddb5a23cab0b673f8059c95

          SHA256

          dad3653b194c30a1529ee967171043e9d4baab2d2481b535129e5ce3b672ea67

          SHA512

          1b9ceb58fc9af5ae24200bdbe29b82d3ebf993fd8e5b160c6b5319867c399205882bd669a697f2aabc02d0297239aceb4cd70d1d89f6b72fa494e1d400d20dac

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

          Filesize

          1.5MB

          MD5

          fb3ad7e9cb5938ad1af8facf52693b27

          SHA1

          4a45c5429a503e8730ebc5261441e91b963510d1

          SHA256

          d5d6f7922d87a58322e5d4ace6819497d0942b3b22dc10c52f5a37cad8e42793

          SHA512

          bf4dd0c6a664e3e4b3fd584a5bc11d55fd874eabceee066f78ea5eb6ce0ab25fb08732cb1eb8baa96beae173474ff4f761b453a8e8544171e16703b1acbf1b60

        • memory/1628-117-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/1628-145-0x0000000006A80000-0x0000000006AD0000-memory.dmp

          Filesize

          320KB

        • memory/2224-96-0x0000000005F20000-0x0000000006274000-memory.dmp

          Filesize

          3.3MB

        • memory/2224-130-0x000000006FC80000-0x000000006FCCC000-memory.dmp

          Filesize

          304KB

        • memory/2444-9-0x0000000007F90000-0x00000000080A6000-memory.dmp

          Filesize

          1.1MB

        • memory/2444-1-0x00000000000A0000-0x0000000000222000-memory.dmp

          Filesize

          1.5MB

        • memory/2444-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

          Filesize

          4KB

        • memory/2444-10-0x000000000A770000-0x000000000A80C000-memory.dmp

          Filesize

          624KB

        • memory/2444-2-0x00000000050C0000-0x0000000005664000-memory.dmp

          Filesize

          5.6MB

        • memory/2444-3-0x0000000004B10000-0x0000000004BA2000-memory.dmp

          Filesize

          584KB

        • memory/2444-8-0x0000000074BF0000-0x00000000753A0000-memory.dmp

          Filesize

          7.7MB

        • memory/2444-7-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

          Filesize

          4KB

        • memory/2444-6-0x0000000005000000-0x0000000005012000-memory.dmp

          Filesize

          72KB

        • memory/2444-5-0x0000000004DE0000-0x0000000004DEA000-memory.dmp

          Filesize

          40KB

        • memory/2444-47-0x0000000074BF0000-0x00000000753A0000-memory.dmp

          Filesize

          7.7MB

        • memory/2444-4-0x0000000074BF0000-0x00000000753A0000-memory.dmp

          Filesize

          7.7MB

        • memory/3536-52-0x00000000075C0000-0x00000000075F2000-memory.dmp

          Filesize

          200KB

        • memory/3536-63-0x0000000006BE0000-0x0000000006BFE000-memory.dmp

          Filesize

          120KB

        • memory/3536-48-0x0000000006630000-0x000000000664E000-memory.dmp

          Filesize

          120KB

        • memory/3536-49-0x00000000066C0000-0x000000000670C000-memory.dmp

          Filesize

          304KB

        • memory/3536-79-0x0000000007B50000-0x0000000007B61000-memory.dmp

          Filesize

          68KB

        • memory/3536-15-0x0000000002D10000-0x0000000002D46000-memory.dmp

          Filesize

          216KB

        • memory/3536-90-0x0000000074BF0000-0x00000000753A0000-memory.dmp

          Filesize

          7.7MB

        • memory/3536-16-0x0000000074BF0000-0x00000000753A0000-memory.dmp

          Filesize

          7.7MB

        • memory/3536-21-0x0000000074BF0000-0x00000000753A0000-memory.dmp

          Filesize

          7.7MB

        • memory/3536-53-0x0000000075480000-0x00000000754CC000-memory.dmp

          Filesize

          304KB

        • memory/3536-74-0x0000000007600000-0x00000000076A3000-memory.dmp

          Filesize

          652KB

        • memory/3536-83-0x0000000007C70000-0x0000000007C78000-memory.dmp

          Filesize

          32KB

        • memory/3536-75-0x0000000007FA0000-0x000000000861A000-memory.dmp

          Filesize

          6.5MB

        • memory/3536-77-0x00000000079C0000-0x00000000079CA000-memory.dmp

          Filesize

          40KB

        • memory/3536-82-0x0000000007C90000-0x0000000007CAA000-memory.dmp

          Filesize

          104KB

        • memory/3996-50-0x0000000005520000-0x00000000055C0000-memory.dmp

          Filesize

          640KB

        • memory/3996-91-0x0000000006CF0000-0x0000000006D72000-memory.dmp

          Filesize

          520KB

        • memory/3996-51-0x0000000005490000-0x00000000054A0000-memory.dmp

          Filesize

          64KB

        • memory/3996-22-0x0000000000400000-0x00000000004D4000-memory.dmp

          Filesize

          848KB

        • memory/4116-141-0x00000000077C0000-0x00000000077D4000-memory.dmp

          Filesize

          80KB

        • memory/4116-140-0x0000000007780000-0x0000000007791000-memory.dmp

          Filesize

          68KB

        • memory/4116-129-0x0000000007490000-0x0000000007533000-memory.dmp

          Filesize

          652KB

        • memory/4116-119-0x000000006FC80000-0x000000006FCCC000-memory.dmp

          Filesize

          304KB

        • memory/4116-118-0x0000000006290000-0x00000000062DC000-memory.dmp

          Filesize

          304KB

        • memory/4836-64-0x0000000075480000-0x00000000754CC000-memory.dmp

          Filesize

          304KB

        • memory/4836-24-0x0000000004E20000-0x0000000004E86000-memory.dmp

          Filesize

          408KB

        • memory/4836-38-0x00000000056F0000-0x0000000005A44000-memory.dmp

          Filesize

          3.3MB

        • memory/4836-30-0x0000000004E90000-0x0000000004EF6000-memory.dmp

          Filesize

          408KB

        • memory/4836-23-0x0000000004D80000-0x0000000004DA2000-memory.dmp

          Filesize

          136KB

        • memory/4836-80-0x0000000007280000-0x000000000728E000-memory.dmp

          Filesize

          56KB

        • memory/4836-89-0x0000000074BF0000-0x00000000753A0000-memory.dmp

          Filesize

          7.7MB

        • memory/4836-76-0x0000000007050000-0x000000000706A000-memory.dmp

          Filesize

          104KB

        • memory/4836-20-0x0000000074BF0000-0x00000000753A0000-memory.dmp

          Filesize

          7.7MB

        • memory/4836-78-0x00000000072D0000-0x0000000007366000-memory.dmp

          Filesize

          600KB

        • memory/4836-81-0x0000000007290000-0x00000000072A4000-memory.dmp

          Filesize

          80KB

        • memory/4836-19-0x0000000074BF0000-0x00000000753A0000-memory.dmp

          Filesize

          7.7MB

        • memory/4836-17-0x0000000004FC0000-0x00000000055E8000-memory.dmp

          Filesize

          6.2MB