Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2023 01:15

General

  • Target

    a0a73f9f2d0aa56ffceef8da32e097f7d87e1199ba8282d065d5c0c78d0f49ba.exe

  • Size

    2.7MB

  • MD5

    203515e9c0d346cca1ba293c335eb6fc

  • SHA1

    4cdc24e1d3b00f994f03770f62d4bf9729978650

  • SHA256

    a0a73f9f2d0aa56ffceef8da32e097f7d87e1199ba8282d065d5c0c78d0f49ba

  • SHA512

    33e1c726dd16ec62491816599ba94433a831b542e087eddb16777e637e372c638bb86690d6b720d23c7a19d1ce5424e32d062f113ecffef48ffe4a622134e41d

  • SSDEEP

    49152:8jVgiG1hT8cm8U2zkpdt0n/s0YRZHPm4poP2UkCsPt/BI:8ji7F84UJoE0YRZvm4pk2U/AhB

Malware Config

Signatures

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Checks installed software on the system 1 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a0a73f9f2d0aa56ffceef8da32e097f7d87e1199ba8282d065d5c0c78d0f49ba.exe
    "C:\Users\Admin\AppData\Local\Temp\a0a73f9f2d0aa56ffceef8da32e097f7d87e1199ba8282d065d5c0c78d0f49ba.exe"
    1⤵
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2496
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\ProgramData\AFHJJEHIEB.exe"
      2⤵
        PID:2232
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\a0a73f9f2d0aa56ffceef8da32e097f7d87e1199ba8282d065d5c0c78d0f49ba.exe" & del "C:\ProgramData\*.dll"" & exit
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:2100
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 5
          3⤵
          • Delays execution with timeout.exe
          PID:1156

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Cab4EFC.tmp

      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\Tar4F4D.tmp

      Filesize

      163KB

      MD5

      9441737383d21192400eca82fda910ec

      SHA1

      725e0d606a4fc9ba44aa8ffde65bed15e65367e4

      SHA256

      bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

      SHA512

      7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

    • memory/2232-216-0x00000000007B0000-0x00000000007B1000-memory.dmp

      Filesize

      4KB

    • memory/2496-0-0x00000000284B0000-0x0000000028530000-memory.dmp

      Filesize

      512KB

    • memory/2496-1-0x000000007751F000-0x0000000077520000-memory.dmp

      Filesize

      4KB

    • memory/2496-2-0x0000000029EB0000-0x000000002A0EA000-memory.dmp

      Filesize

      2.2MB

    • memory/2496-124-0x0000000029EB0000-0x000000002A0EA000-memory.dmp

      Filesize

      2.2MB

    • memory/2496-123-0x0000000029EB0000-0x000000002A0EA000-memory.dmp

      Filesize

      2.2MB

    • memory/2496-144-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/2496-198-0x00000000284B0000-0x0000000028530000-memory.dmp

      Filesize

      512KB

    • memory/2496-199-0x0000000029EB0000-0x000000002A0EA000-memory.dmp

      Filesize

      2.2MB