Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    05/05/2026, 08:50

General

  • Target
    Quotation. [RFQ 28042026].exe
  • Size 924KB
  • Sample260505-krydjsbx2w
  • SHA256 c38ce940408c9ec3b60a00d3329b4d3acbb2b801ecc173db0236ad8a35b8aa6c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.duct-master.com

  • Port

    21

  • Password

    WL9ow,~&t(NJJf-)nn

Signatures

  • Family: AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Executes dropped EXE 2 IoCs
  • 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.

  • 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.

  • SmartAssembly .NET packer 2 IoCs

    Detects SmartAssembly .NET packer.

  • Suspicious use of SetThreadContext 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation. [RFQ 28042026].exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation. [RFQ 28042026].exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3208
    • C:\Users\Admin\AppData\Local\Temp\Quotation. [RFQ 28042026].exe
      "C:\Users\Admin\AppData\Local\Temp\Quotation. [RFQ 28042026].exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1252
  • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\4mjbhmooqxb.ps1"
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5104
    • C:\Users\Admin\AppData\Roaming\utwcUnAge.exe
      "C:\Users\Admin\AppData\Roaming\utwcUnAge.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1528
      • C:\Users\Admin\AppData\Roaming\utwcUnAge.exe
        "C:\Users\Admin\AppData\Roaming\utwcUnAge.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4224

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        utwcUnAge.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\utwcUnAge.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512 TLSH

        4mjbhmooqxb.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\4mjbhmooqxb.ps1
        • Size 1KB
        • SHA256 4469f7bfeea6da5cfd5588c1c68bb5ea1a01b8a13e1134424bb966df25aef13d
        • MD5 SHA1 SHA512 TLSH

        __PSScriptPolicyTest_kxxrkls4.pt1.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kxxrkls4.pt1.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        utwcUnAge.exe

        • Path C:\Users\Admin\AppData\Roaming\utwcUnAge.exe
        • Size 924KB
        • SHA256 c38ce940408c9ec3b60a00d3329b4d3acbb2b801ecc173db0236ad8a35b8aa6c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1252-39-0x0000000001280000-0x00000000013A0000-memory.dmp

        memory/1252-42-0x0000000005710000-0x000000000578E000-memory.dmp

        memory/1252-40-0x0000000005390000-0x00000000053BF000-memory.dmp

        memory/1252-38-0x0000000005410000-0x0000000005420000-memory.dmp

        memory/1252-37-0x0000000006C30000-0x0000000006C80000-memory.dmp

        memory/1252-41-0x00000000053C0000-0x00000000053C6000-memory.dmp

        memory/1252-14-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/1252-19-0x00000000055A0000-0x0000000005606000-memory.dmp

        memory/1252-87-0x0000000001280000-0x00000000013A0000-memory.dmp

        memory/1252-18-0x0000000005410000-0x0000000005420000-memory.dmp

        memory/1528-43-0x0000000000EC0000-0x0000000000FE0000-memory.dmp

        memory/1528-36-0x00000000051A0000-0x00000000051B2000-memory.dmp

        memory/1528-54-0x0000000004F60000-0x0000000004F8F000-memory.dmp

        memory/1528-53-0x0000000000EC0000-0x0000000000FE0000-memory.dmp

        memory/1528-44-0x0000000004F60000-0x0000000004F8F000-memory.dmp

        memory/3208-4-0x0000000005500000-0x000000000550A000-memory.dmp

        memory/3208-0-0x0000000000760000-0x000000000084E000-memory.dmp

        memory/3208-1-0x0000000005840000-0x0000000005DE4000-memory.dmp

        memory/3208-9-0x0000000006940000-0x0000000006A14000-memory.dmp

        memory/3208-7-0x00000000013A0000-0x00000000014C0000-memory.dmp

        memory/3208-8-0x00000000055D0000-0x00000000055E0000-memory.dmp

        memory/3208-6-0x00000000056C0000-0x00000000056D2000-memory.dmp

        memory/3208-5-0x00000000055E0000-0x000000000567C000-memory.dmp

        memory/3208-17-0x0000000002D80000-0x0000000002DFE000-memory.dmp

        memory/3208-3-0x00000000055D0000-0x00000000055E0000-memory.dmp

        memory/3208-16-0x00000000013A0000-0x00000000014C0000-memory.dmp

        memory/3208-2-0x0000000005370000-0x0000000005402000-memory.dmp

        memory/4224-60-0x0000000004E50000-0x0000000004E7F000-memory.dmp

        memory/4224-62-0x0000000005550000-0x00000000055CE000-memory.dmp

        memory/4224-61-0x0000000004E30000-0x0000000004E36000-memory.dmp

        memory/4224-59-0x0000000000FB0000-0x00000000010D0000-memory.dmp

        memory/4224-107-0x0000000000FB0000-0x00000000010D0000-memory.dmp

        memory/5104-35-0x0000026811CA0000-0x0000026811CAC000-memory.dmp

        memory/5104-28-0x000002682A2F0000-0x000002682A312000-memory.dmp

        memory/5104-20-0x000002682A330000-0x000002682A340000-memory.dmp

        memory/5104-34-0x0000026810640000-0x0000026810670000-memory.dmp