Analysis

  • max time kernel
    128s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/02/2025, 06:32

General

  • Target

    URGENTDHL-OVERDUEACCOUNTLETTER-1300711528.exe

  • Size

    2.4MB

  • MD5

    c3b5d2314930b677e70e2174647eec9c

  • SHA1

    ca3f9e5900c943c0aa33efd95c83fac1850b0aa0

  • SHA256

    140b71c1dc8ccf24de4f4bdd0c1acd6db259b720eb263123b7c100d5a6051852

  • SHA512

    b63ea62c13e5f421eb945afb6f02a01448db42c9fe7c97a6085851048a1f184f43af744355f93115065b4bfcf3eee59f806a6701de7767a49eb155ec55fca587

  • SSDEEP

    49152:4LmAT3UAXdrbW5Z6MneR+Hq/GdEv3hg4W8ZSS:ImAYA6ZvHq/XhgI

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Drops startup file 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3412
      • C:\Users\Admin\AppData\Local\Temp\URGENTDHL-OVERDUEACCOUNTLETTER-1300711528.exe
        "C:\Users\Admin\AppData\Local\Temp\URGENTDHL-OVERDUEACCOUNTLETTER-1300711528.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Drops startup file
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:320
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1764
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4376

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/320-29-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-65-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-2-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/320-3-0x0000000006450000-0x00000000066AC000-memory.dmp

      Filesize

      2.4MB

    • memory/320-7-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-4-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-11-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-28-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-25-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-23-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-21-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-17-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-15-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-9-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-5-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-19-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-13-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-67-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-51-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-59-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-57-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-55-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-53-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-49-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-43-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-41-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-39-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-37-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-45-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-35-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-33-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-31-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-1-0x0000000000F90000-0x00000000011F4000-memory.dmp

      Filesize

      2.4MB

    • memory/320-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

      Filesize

      4KB

    • memory/320-47-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-61-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-63-0x0000000006450000-0x00000000066A6000-memory.dmp

      Filesize

      2.3MB

    • memory/320-1326-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/320-1327-0x00000000066B0000-0x0000000006866000-memory.dmp

      Filesize

      1.7MB

    • memory/320-1328-0x0000000007B40000-0x0000000007CF4000-memory.dmp

      Filesize

      1.7MB

    • memory/320-1329-0x0000000005610000-0x000000000565C000-memory.dmp

      Filesize

      304KB

    • memory/320-1330-0x00000000083A0000-0x0000000008944000-memory.dmp

      Filesize

      5.6MB

    • memory/320-1331-0x0000000006A70000-0x0000000006AC4000-memory.dmp

      Filesize

      336KB

    • memory/320-1335-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

      Filesize

      4KB

    • memory/320-1338-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/320-1343-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/320-1344-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/320-1341-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1764-1342-0x0000000000500000-0x00000000006F6000-memory.dmp

      Filesize

      2.0MB

    • memory/1764-2678-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1764-1562-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1764-2669-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1764-2670-0x0000000004D30000-0x0000000004D94000-memory.dmp

      Filesize

      400KB

    • memory/1764-2671-0x0000000004F00000-0x0000000004F62000-memory.dmp

      Filesize

      392KB

    • memory/1764-2676-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1764-2679-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1764-1345-0x0000000004B60000-0x0000000004C6A000-memory.dmp

      Filesize

      1.0MB

    • memory/4376-2680-0x0000000000500000-0x000000000053E000-memory.dmp

      Filesize

      248KB

    • memory/4376-2682-0x00000000049C0000-0x0000000004A5C000-memory.dmp

      Filesize

      624KB

    • memory/4376-2681-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4376-2683-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4376-2684-0x0000000005D50000-0x0000000005F12000-memory.dmp

      Filesize

      1.8MB

    • memory/4376-2685-0x0000000005BF0000-0x0000000005C40000-memory.dmp

      Filesize

      320KB

    • memory/4376-2686-0x0000000006450000-0x000000000697C000-memory.dmp

      Filesize

      5.2MB

    • memory/4376-2687-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4376-2688-0x0000000004760000-0x00000000047F2000-memory.dmp

      Filesize

      584KB

    • memory/4376-2689-0x0000000000750000-0x000000000075A000-memory.dmp

      Filesize

      40KB