Analysis

  • max time kernel
    126s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-09-2024 16:07

General

  • Target

    InvoiceRequest.scr.exe

  • Size

    701KB

  • MD5

    6f605fd10c79ec475befda0cd232f38b

  • SHA1

    8b015776a4e0e1ba8495f89296b4eb5293faba33

  • SHA256

    c41893463c861e8d6274f2d5f5335ba4d23dfe4c6d6d65d8bc08eec140b4890d

  • SHA512

    24de79629da70f73f56576438965b653578888576be7013cc814af92c7cba1ae29517e245b0469ee842133c16a00611b3b96b87432c23c13093e0062f301d823

  • SSDEEP

    12288:ksK8s/+/yHUvONddAckNe5xAkO5IGGswKPS3JFn0C53tqksN7t0lTO3tz0:RiMywONddAdN2ek975n3a97mO9

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Password: )NYyffR0

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • 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 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\InvoiceRequest.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\InvoiceRequest.scr.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:2456
    • 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\InvoiceRequest.scr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1732
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PPTPXSGOk.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3008
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PPTPXSGOk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7D2A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2572
    • C:\Users\Admin\AppData\Local\Temp\InvoiceRequest.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\InvoiceRequest.scr.exe"
      2⤵
        PID:4132
      • C:\Users\Admin\AppData\Local\Temp\InvoiceRequest.scr.exe
        "C:\Users\Admin\AppData\Local\Temp\InvoiceRequest.scr.exe"
        2⤵
          PID:3244
        • C:\Users\Admin\AppData\Local\Temp\InvoiceRequest.scr.exe
          "C:\Users\Admin\AppData\Local\Temp\InvoiceRequest.scr.exe"
          2⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2752
      • 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=4292,i,12470628711992022444,7767535593390851522,262144 --variations-seed-version --mojo-platform-channel-handle=3872 /prefetch:8
        1⤵
          PID:3124

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\InvoiceRequest.scr.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

          ed8c312535d980b44c4e8f4530b2555f

          SHA1

          01aaeb95be05368a9cb0863581c833988ff9910f

          SHA256

          1a181e2833a4cb19d5e92e85261a4d78aba9f30e6ffbcf80841a469436673856

          SHA512

          4b6b613ba86067bf2d2f20f88075f248407ea83b5ec4a7bee794ebe4530a4b9f915b99c0251f5d495837145ac24be20e8dd1fa157d415400704da7e2db41a2d9

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1hkskmee.2aj.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp7D2A.tmp

          Filesize

          1KB

          MD5

          871b0f9e8a97b02497388465c919514f

          SHA1

          2665d59c76f30bfc209176b4c6c3ee56c75c25ed

          SHA256

          af248fbdf9cd1da9cc7008325a95871804cbde6250d5a780303ce9f89bf1464f

          SHA512

          65d724ca18ac138d418e768c29322e65da688b1e695a713dbf37c5ea8682b7b8511baf8f249ab5ea538238b55971e7f0fef214f5a1dbe4907b6e774ed14f2147

        • memory/1732-24-0x0000000005E70000-0x0000000005ED6000-memory.dmp

          Filesize

          408KB

        • memory/1732-90-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/1732-79-0x0000000007BA0000-0x0000000007C36000-memory.dmp

          Filesize

          600KB

        • memory/1732-65-0x00000000077E0000-0x0000000007883000-memory.dmp

          Filesize

          652KB

        • memory/1732-64-0x0000000007580000-0x000000000759E000-memory.dmp

          Filesize

          120KB

        • memory/1732-54-0x000000006F9C0000-0x000000006FA0C000-memory.dmp

          Filesize

          304KB

        • memory/1732-53-0x00000000075A0000-0x00000000075D2000-memory.dmp

          Filesize

          200KB

        • memory/1732-16-0x0000000005040000-0x0000000005076000-memory.dmp

          Filesize

          216KB

        • memory/1732-17-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/1732-18-0x00000000056B0000-0x0000000005CD8000-memory.dmp

          Filesize

          6.2MB

        • memory/1732-19-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/1732-52-0x0000000006930000-0x000000000697C000-memory.dmp

          Filesize

          304KB

        • memory/1732-50-0x00000000065E0000-0x00000000065FE000-memory.dmp

          Filesize

          120KB

        • memory/1732-76-0x0000000007F60000-0x00000000085DA000-memory.dmp

          Filesize

          6.5MB

        • memory/1732-23-0x0000000005D50000-0x0000000005DB6000-memory.dmp

          Filesize

          408KB

        • memory/1732-47-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/1732-22-0x0000000005500000-0x0000000005522000-memory.dmp

          Filesize

          136KB

        • memory/1732-84-0x0000000007C40000-0x0000000007C48000-memory.dmp

          Filesize

          32KB

        • memory/2456-51-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/2456-3-0x0000000004A60000-0x0000000004AF2000-memory.dmp

          Filesize

          584KB

        • memory/2456-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

          Filesize

          4KB

        • memory/2456-6-0x0000000007460000-0x00000000074FA000-memory.dmp

          Filesize

          616KB

        • memory/2456-1-0x0000000000120000-0x00000000001D4000-memory.dmp

          Filesize

          720KB

        • memory/2456-4-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/2456-2-0x0000000004F70000-0x0000000005514000-memory.dmp

          Filesize

          5.6MB

        • memory/2456-5-0x0000000004B00000-0x0000000004B0A000-memory.dmp

          Filesize

          40KB

        • memory/2456-11-0x0000000009BB0000-0x0000000009C4C000-memory.dmp

          Filesize

          624KB

        • memory/2456-10-0x0000000007500000-0x0000000007582000-memory.dmp

          Filesize

          520KB

        • memory/2456-9-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/2456-8-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

          Filesize

          4KB

        • memory/2456-7-0x0000000004DF0000-0x0000000004E00000-memory.dmp

          Filesize

          64KB

        • memory/2752-46-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2752-93-0x0000000006AB0000-0x0000000006B00000-memory.dmp

          Filesize

          320KB

        • memory/3008-83-0x0000000007880000-0x000000000789A000-memory.dmp

          Filesize

          104KB

        • memory/3008-66-0x000000006F9C0000-0x000000006FA0C000-memory.dmp

          Filesize

          304KB

        • memory/3008-80-0x0000000007740000-0x0000000007751000-memory.dmp

          Filesize

          68KB

        • memory/3008-81-0x0000000007770000-0x000000000777E000-memory.dmp

          Filesize

          56KB

        • memory/3008-82-0x0000000007780000-0x0000000007794000-memory.dmp

          Filesize

          80KB

        • memory/3008-77-0x0000000007540000-0x000000000755A000-memory.dmp

          Filesize

          104KB

        • memory/3008-27-0x0000000005C10000-0x0000000005F64000-memory.dmp

          Filesize

          3.3MB

        • memory/3008-26-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/3008-25-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/3008-20-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/3008-91-0x0000000074A70000-0x0000000075220000-memory.dmp

          Filesize

          7.7MB

        • memory/3008-78-0x00000000075B0000-0x00000000075BA000-memory.dmp

          Filesize

          40KB