Overview

overview

10

Static

static

3

jaffacakes...my.exe

windows10-2004-x64

10

jaffacakes...my.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/10/2026, 22:28

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    jaffacakes118_Trojan.Win32.Chydo.bmy.exe
  • Size 524KB
  • Sample261018-2d2bqabt7x
  • SHA256 941a768abcfc5bbeac6bac913b7dccd2038b4d466c2034dfadd0d4e0c972b77e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoverypykspapersistenceprivilege_escalationtrojanworm

Malware Config

Signatures

  • Family: Pykspa

    Pykspa is a worm spreads via Skype uses DGA and it's written in C++.

    wormpykspa
  • Detect Pykspa worm 2 IoCs
    worm
  • Modifies WinLogon for persistence 2 TTPs 6 IoCs
    persistence
  • UAC bypass 3 TTPs 15 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 37 IoCs
    persistence
  • Disables RegEdit via registry modification 6 IoCs
    defense_evasion
  • Executes dropped EXE 28 IoCs
  • Impair Defenses: Safe Mode Boot 1 TTPs 7 IoCs
    defense_evasion
  • Adds Run key to start application 2 TTPs 64 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 12 IoCs
    defense_evasiontrojan
  • Hijack Execution Flow: Executable Installer File Permissions Weakness 1 TTPs 3 IoCs

    Possible Turn off User Account Control's privilege elevation for standard users.

    defense_evasionpersistenceprivilege_escalation
  • Looks up external IP address via web service 1 TTPs 4 IoCs

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

    discovery
  • Drops autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 56 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

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

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 18 IoCs

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

    discovery
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • System policy modification 1 TTPs 42 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Chydo.bmy.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Chydo.bmy.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe
      "C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe" "c:\users\admin\appdata\local\temp\jaffacakes118_trojan.win32.chydo.bmy.exe*"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Hijack Execution Flow: Executable Installer File Permissions Weakness
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:6140
      • C:\Users\Admin\AppData\Local\Temp\itzegp.exe
        "C:\Users\Admin\AppData\Local\Temp\itzegp.exe" "-C:\Users\Admin\AppData\Local\Temp\upfugzrhqhcrmvop.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Impair Defenses: Safe Mode Boot
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Hijack Execution Flow: Executable Installer File Permissions Weakness
        • Drops autorun.inf file
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • System policy modification
        PID:3096
      • C:\Users\Admin\AppData\Local\Temp\itzegp.exe
        "C:\Users\Admin\AppData\Local\Temp\itzegp.exe" "-C:\Users\Admin\AppData\Local\Temp\upfugzrhqhcrmvop.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Hijack Execution Flow: Executable Installer File Permissions Weakness
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System policy modification
        PID:1892
    • C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe
      "C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe" "c:\users\admin\appdata\local\temp\jaffacakes118_trojan.win32.chydo.bmy.exe"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:5624
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:5508
  • C:\Windows\xxsmdbythddxxljpjxllg.exe
    xxsmdbythddxxljpjxllg.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5884
    • C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe
      "C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe" "c:\windows\xxsmdbythddxxljpjxllg.exe*."
      2⤵
      • Executes dropped EXE
      PID:4372
  • C:\Windows\upfugzrhqhcrmvop.exe
    upfugzrhqhcrmvop.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2232
  • C:\Users\Admin\AppData\Local\Temp\vtmetpkdpjhzxjfjbnz.exe
    C:\Users\Admin\AppData\Local\Temp\vtmetpkdpjhzxjfjbnz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:6020
  • C:\Users\Admin\AppData\Local\Temp\ihbukhdxkfexwjglered.exe
    C:\Users\Admin\AppData\Local\Temp\ihbukhdxkfexwjglered.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5732
  • C:\Windows\bxoerlevfxtjfpjlb.exe
    bxoerlevfxtjfpjlb.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4984
    • C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe
      "C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe" "c:\windows\bxoerlevfxtjfpjlb.exe*."
      2⤵
      • Executes dropped EXE
      PID:564
  • C:\Windows\bxoerlevfxtjfpjlb.exe
    bxoerlevfxtjfpjlb.exe
    1⤵
    • Executes dropped EXE
    PID:4144
  • C:\Windows\vtmetpkdpjhzxjfjbnz.exe
    vtmetpkdpjhzxjfjbnz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4180
    • C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe
      "C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe" "c:\windows\vtmetpkdpjhzxjfjbnz.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:5344
  • C:\Windows\xxsmdbythddxxljpjxllg.exe
    xxsmdbythddxxljpjxllg.exe
    1⤵
    • Executes dropped EXE
    PID:1852
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:1476
    • C:\Windows\ihbukhdxkfexwjglered.exe
      ihbukhdxkfexwjglered.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5424
    • C:\Users\Admin\AppData\Local\Temp\khzqeztlwpmdalgjal.exe
      C:\Users\Admin\AppData\Local\Temp\khzqeztlwpmdalgjal.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:6064
    • C:\Users\Admin\AppData\Local\Temp\bxoerlevfxtjfpjlb.exe
      C:\Users\Admin\AppData\Local\Temp\bxoerlevfxtjfpjlb.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2976
    • C:\Users\Admin\AppData\Local\Temp\xxsmdbythddxxljpjxllg.exe
      C:\Users\Admin\AppData\Local\Temp\xxsmdbythddxxljpjxllg.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3700
    • C:\Windows\khzqeztlwpmdalgjal.exe
      khzqeztlwpmdalgjal.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5800
    • C:\Windows\khzqeztlwpmdalgjal.exe
      khzqeztlwpmdalgjal.exe .
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe
        "C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe" "c:\windows\khzqeztlwpmdalgjal.exe*."
        2⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System policy modification
        PID:2804
    • C:\Windows\ihbukhdxkfexwjglered.exe
      ihbukhdxkfexwjglered.exe .
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4836
      • C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe
        "C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe" "c:\windows\ihbukhdxkfexwjglered.exe*."
        2⤵
        • Executes dropped EXE
        PID:1284
    • C:\Windows\vtmetpkdpjhzxjfjbnz.exe
      vtmetpkdpjhzxjfjbnz.exe
      1⤵
      • Executes dropped EXE
      PID:3512
    • C:\Windows\upfugzrhqhcrmvop.exe
      upfugzrhqhcrmvop.exe .
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1836
      • C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe
        "C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe" "c:\windows\upfugzrhqhcrmvop.exe*."
        2⤵
        • Executes dropped EXE
        PID:4144
    • C:\Users\Admin\AppData\Local\Temp\upfugzrhqhcrmvop.exe
      C:\Users\Admin\AppData\Local\Temp\upfugzrhqhcrmvop.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2028

    Network

          MITRE ATT&CK Enterprise v16

          Reconnaissance

          Resource Development

          Initial Access

          Replication Through Removable Media

          1
          T1091

          Execution

          Persistence

          Boot or Logon Autostart Execution

          3
          T1547

          Registry Run Keys / Startup Folder

          2
          T1547.001

          Winlogon Helper DLL

          1
          T1547.004

          Hijack Execution Flow

          1
          T1574

          Executable Installer File Permissions Weakness

          1
          T1574.005

          Privilege Escalation

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          Boot or Logon Autostart Execution

          3
          T1547

          Registry Run Keys / Startup Folder

          2
          T1547.001

          Winlogon Helper DLL

          1
          T1547.004

          Hijack Execution Flow

          1
          T1574

          Executable Installer File Permissions Weakness

          1
          T1574.005

          Defense Evasion

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          Hijack Execution Flow

          1
          T1574

          Executable Installer File Permissions Weakness

          1
          T1574.005

          Impair Defenses

          2
          T1562

          Disable or Modify Tools

          1
          T1562.001

          Safe Mode Boot

          1
          T1562.009

          Modify Registry

          5
          T1112

          Credential Access

          Discovery

          System Information Discovery

          2
          T1082

          System Location Discovery

          1
          T1614

          System Language Discovery

          1
          T1614.001

          System Network Configuration Discovery

          2
          T1016

          Internet Connection Discovery

          1
          T1016.001

          Lateral Movement

          Replication Through Removable Media

          1
          T1091

          Collection

          Command and Control

          Exfiltration

          Impact

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          mdpaixlxcpgrinczkpulxiqftfkxozqvkh.xct
          • Path C:\Program Files (x86)\mdpaixlxcpgrinczkpulxiqftfkxozqvkh.xct
          • Size 3KB
          • SHA256 d0a4d1d6cf7df591b6713dfacf9592d2efc69e1d69b0bef340103d9af9c0df22
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          zfggdhklfhnntnrddxrxyyv.cdx
          • Path C:\Program Files (x86)\zfggdhklfhnntnrddxrxyyv.cdx
          • Size 260B
          • SHA256 b4f40d30578e85bc06890295e93d9d3ae603cb320d18e86b0526c3cfbb19b85a
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          zfggdhklfhnntnrddxrxyyv.cdx
          • Path C:\Program Files (x86)\zfggdhklfhnntnrddxrxyyv.cdx
          • Size 260B
          • SHA256 6c0f46c3f572c4d0766e42325700e46cbc5c84a887aa1a70b8d18571d6a15d0a
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          zfggdhklfhnntnrddxrxyyv.cdx
          • Path C:\Program Files (x86)\zfggdhklfhnntnrddxrxyyv.cdx
          • Size 260B
          • SHA256 674287f3a8acf3b0cccc3b5fdb50e1b10c84122e287d0bdb98d3917890e07a74
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          zfggdhklfhnntnrddxrxyyv.cdx
          • Path C:\Program Files (x86)\zfggdhklfhnntnrddxrxyyv.cdx
          • Size 260B
          • SHA256 0e68a605d526a1173802c1d7d2aa46d44a5efdca8b6d22a3723b7a6aed718840
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          zfggdhklfhnntnrddxrxyyv.cdx
          • Path C:\Program Files (x86)\zfggdhklfhnntnrddxrxyyv.cdx
          • Size 260B
          • SHA256 c339fbb24254c25908a08a42195955488a1f65fe920b381df6d8970ee6c82ab8
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          zfggdhklfhnntnrddxrxyyv.cdx
          • Path C:\Program Files (x86)\zfggdhklfhnntnrddxrxyyv.cdx
          • Size 260B
          • SHA256 b173fd26531a278c714343a8081d3a4c8578aff99683a80e7c2cc52f8d25bcc9
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          zfggdhklfhnntnrddxrxyyv.cdx
          • Path C:\Program Files (x86)\zfggdhklfhnntnrddxrxyyv.cdx
          • Size 260B
          • SHA256 b9ce1f4bcce16b53c8fba02b81f812d7208c9f7711ef29cda121cbb174ed604b
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          itzegp.exe
          • Path C:\Users\Admin\AppData\Local\Temp\itzegp.exe
          • Size 700KB
          • SHA256 00d6d3b46f4b008320b8f1d51d1cb3ed2d569d5c2cda1dd7b926ce8bc56fcf7a
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ujtcivhruf.exe
          • Path C:\Users\Admin\AppData\Local\Temp\kxfmqblt\ujtcivhruf.exe
          • Size 544KB
          • SHA256 6164033ac1e84f2e8249540dd7a6286e845e7e87da78e9e7998d45b8794bda14
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          tdtxlhrvdnd.exe
          • Path C:\Users\Admin\AppData\Local\Temp\tdtxlhrvdnd.exe
          • Size 320KB
          • SHA256 34a5f9e2b494b086abad2721019be271fa43350c9146f000e50fe554f170743d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          xxsmdbythddxxljpjxllg.exe
          • Path C:\Windows\xxsmdbythddxxljpjxllg.exe
          • Size 524KB
          • SHA256 941a768abcfc5bbeac6bac913b7dccd2038b4d466c2034dfadd0d4e0c972b77e
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download