Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/11/2026, 12:16

General

  • Target
    DeltaLoader.exe
  • Size 2.3MB
  • Sample261113-pflylabw6l
  • SHA256 b5e9cf94175d0539fe48fc1af05813e96ec8959919c367f5d0dcce35262f984e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 5 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 21 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 4 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Modifies data under HKEY_USERS 59 IoCs
  • Suspicious behavior: EnumeratesProcesses 41 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\DeltaLoader.exe
    "C:\Users\Admin\AppData\Local\Temp\DeltaLoader.exe"
    1⤵
    • Drops file in Program Files directory
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3860
  • C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe
    "C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4312
    • C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe
      "C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe"
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1948
      • C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe
        "C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4552
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
        3⤵
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2604
      • C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe
        "C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3004
  • C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe
    C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:2420

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        OfficeClickToRun.exe

        • Path C:\Users\Admin\AppData\Local\Microsoft\OfficeClickToRun.exe
        • Size 2.3MB
        • SHA256 b5e9cf94175d0539fe48fc1af05813e96ec8959919c367f5d0dcce35262f984e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        inv_3860_734e06033606cb6a_Web Data

        • Path C:\Users\Admin\AppData\Local\Temp\inv_3860_734e06033606cb6a_Web Data
        • Size 138KB
        • SHA256 c6a8cae9fe7cd0c2c09301e7241b4a6fa28008042e7cb9f2851dfc37211fe5fe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_upcbpmzd.0wc.psm1

        • Path C:\Windows\SystemTemp\__PSScriptPolicyTest_upcbpmzd.0wc.psm1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        inv_1948_19e71918b6ecd6f7_Login Data

        • Path C:\Windows\Temp\inv_1948_19e71918b6ecd6f7_Login Data
        • Size 40KB
        • SHA256 06aeb2f9c1ee642348c091fb27541c143545354c273055ce30832e0f61aedf81
        • MD5 SHA1 SHA512 SSDEEP TLSH

        inv_1948_4cdde8f9f5eecc0d_Cookies

        • Path C:\Windows\Temp\inv_1948_4cdde8f9f5eecc0d_Cookies
        • Size 20KB
        • SHA256 2ade7ad8f15eccb025798893f007bc3a04679504411bbad75e4d1f35cf47a65e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1948-97-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/1948-73-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/1948-87-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/1948-85-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/1948-81-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/1948-89-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/1948-77-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/1948-79-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/1948-22-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/2420-26-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/2420-74-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/2604-33-0x000001F100C00000-0x000001F100C22000-memory.dmp

        memory/2604-71-0x000001F119660000-0x000001F119712000-memory.dmp

        memory/2604-72-0x000001F1195E0000-0x000001F1195EA000-memory.dmp

        memory/2604-70-0x000001F1195F0000-0x000001F11960E000-memory.dmp

        memory/2604-67-0x000001F119610000-0x000001F119658000-memory.dmp

        memory/3004-35-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/3860-17-0x00007FF73F730000-0x00007FF73FD6E000-memory.dmp

        memory/3860-0-0x00007FF73F730000-0x00007FF73FD6E000-memory.dmp

        memory/3860-5-0x00007FF73F730000-0x00007FF73FD6E000-memory.dmp

        memory/3860-27-0x00007FF73F730000-0x00007FF73FD6E000-memory.dmp

        memory/4312-23-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/4312-6-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/4552-29-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp

        memory/4552-76-0x00007FF737BB0000-0x00007FF7381EE000-memory.dmp