Resubmissions

04/11/2026, 19:12

261104-xwzhmatzbs10

29/10/2026, 08:21

261029-j8981aav8y10

29/10/2026, 08:19

261029-j8as5sxze1

29/10/2026, 08:19

261029-j797lsxzez

15/08/2026, 21:19

260815-z592tshg57

12/05/2026, 09:30

260512-lghqsah14t

12/05/2026, 09:29

260512-lf4a4ad17m

11/05/2026, 13:07

260511-qcln4aaw4z

09/05/2026, 21:41

260509-1j69gsdv7w10

09/05/2026, 21:41

260509-1jyx4sdv7s

Analysis

  • max time kernel
    97s
  • max time network
    127s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250619-en
  • resource tags

    arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    27/06/2025, 17:28

General

  • Target
    Archive.zip__ccacaxs2tbz2t6ob3e.exe
  • Size 430KB
  • Sample250627-v1z9lsstdw
  • SHA256 005d3b2b78fa134092a43e53112e5c8518f14cf66e57e6a3cc723219120baba6
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • 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.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Archive.zip__ccacaxs2tbz2t6ob3e.exe
    "C:\Users\Admin\AppData\Local\Temp\Archive.zip__ccacaxs2tbz2t6ob3e.exe"
    1⤵
    • Downloads MZ/PE file
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Users\Admin\AppData\Local\Temp\Temp\WCInstaller.exe
      C:\Users\Admin\AppData\Local\Temp\Temp\WCInstaller.exe --silent --partner=AE190201 --homepage=11 --search=7 --campaign=292
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4280
      • C:\Users\Admin\AppData\Local\Temp\7zS8B013578\WebCompanionInstaller.exe
        .\WebCompanionInstaller.exe --partner=AE190201 --campaign=292 --version=8.9.0.1201 --silent --partner=AE190201 --homepage=11 --search=7 --campaign=292
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3284

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Newtonsoft.Json.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS8B013578\Newtonsoft.Json.dll
        • Size 428KB
        • SHA256 f2d262cd645b7888b88ffa0e799e3e77c982bd2b09e68ad625b218d1435b6f6b
        • MD5 SHA1 SHA512 SSDEEP

        WebCompanionInstaller.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS8B013578\WebCompanionInstaller.exe
        • Size 454KB
        • SHA256 7f86c7e4a65835f9c12d2425d611902d23b15626960a19d2da03ec511b6a7b9c
        • MD5 SHA1 SHA512 SSDEEP

        WebCompanionInstaller.exe.config

        • Path C:\Users\Admin\AppData\Local\Temp\7zS8B013578\WebCompanionInstaller.exe.config
        • Size 1KB
        • SHA256 6309de6d3c423af1dc0c47869793c37a108fa32da063d3f5bbb96927f93b4c25
        • MD5 SHA1 SHA512

        WCInstaller.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Temp\WCInstaller.exe
        • Size 551KB
        • SHA256 6d2a2227681cf096a5783131a7a744da178fa103dc41dbdf4cbdd49b9909b60f
        • MD5 SHA1 SHA512 SSDEEP

        memory/3284-65-0x0000000073391000-0x0000000073392000-memory.dmp

        memory/3284-67-0x0000000073390000-0x0000000073941000-memory.dmp

        memory/3284-91-0x0000000073390000-0x0000000073941000-memory.dmp