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Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    18/01/2024, 19:02

General

  • Target

    setup_win64_86.exe

  • Size

    702.4MB

  • MD5

    deaaff59e0eb4e8865f5da9556f857ca

  • SHA1

    0bf64293ac739d68986cd606295f6ff13fb0e55f

  • SHA256

    f40c4729c00b960427670c209d7a22da48f26a135f64718a399dd4b34048b93b

  • SHA512

    9b379c6bf1ee3e9f742edc5c394910a452adbbfe9f889a51129aee67f6e5de2061d09bec377561ec7961ea73913767348d3790e906e6f5b0a24b8c63441ec8ed

  • SSDEEP

    196608:4S5rfUza9s4bZ8zm4v+/OFCCbdC1Zutbxf:4S579s4bazpmmFzC1otb

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\setup_win64_86.exe
    "C:\Users\Admin\AppData\Local\Temp\setup_win64_86.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2496
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c schtasks /create /tn \Service\Data /tr """"C:\Users\Admin\AppData\Roaming\ServiceData\Tavokede.exe""" """C:\Users\Admin\AppData\Roaming\ServiceData\Tavokede.jpg"""" /st 00:01 /du 9800:59 /sc once /ri 1 /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2804
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn \Service\Data /tr """"C:\Users\Admin\AppData\Roaming\ServiceData\Tavokede.exe""" """C:\Users\Admin\AppData\Roaming\ServiceData\Tavokede.jpg"""" /st 00:01 /du 9800:59 /sc once /ri 1 /f
        3⤵
        • Creates scheduled task(s)
        PID:3016
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {BE8393E5-8CBD-4499-8029-7F55FD377105} S-1-5-21-3601492379-692465709-652514833-1000:CALKHSYM\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Users\Admin\AppData\Roaming\ServiceData\Tavokede.exe
      C:\Users\Admin\AppData\Roaming\ServiceData\Tavokede.exe "C:\Users\Admin\AppData\Roaming\ServiceData\Tavokede.jpg"
      2⤵
      • Executes dropped EXE
      PID:2688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\ServiceData\Tavokede.exe

    Filesize

    925KB

    MD5

    0adb9b817f1df7807576c2d7068dd931

    SHA1

    4a1b94a9a5113106f40cd8ea724703734d15f118

    SHA256

    98e4f904f7de1644e519d09371b8afcbbf40ff3bd56d76ce4df48479a4ab884b

    SHA512

    883aa88f2dba4214bb534fbdaf69712127357a3d0f5666667525db3c1fa351598f067068dfc9e7c7a45fed4248d7dca729ba4f75764341e47048429f9ca8846a

  • C:\Users\Admin\AppData\Roaming\ServiceData\Tavokede.jpg

    Filesize

    553KB

    MD5

    c32bbef2171d089b60950b6851976a63

    SHA1

    995f5c5f4ee85c81e714e97dbff743c2e0b1b0dd

    SHA256

    9f47b37685ce5101ed93dd1cd66aa5b7e8f936eb945d14edb49129a0004007a1

    SHA512

    d9ae8a8107d078499152f1bde9d7d734f4cf03a9a495f0d32d434fc7831e28b34990315b15be697b09301b5a70e734f07918314a22e1fabf414f75c77fd131ca

  • memory/2496-0-0x0000000000020000-0x0000000000021000-memory.dmp

    Filesize

    4KB

  • memory/2496-2-0x0000000000020000-0x0000000000021000-memory.dmp

    Filesize

    4KB

  • memory/2496-4-0x0000000000020000-0x0000000000021000-memory.dmp

    Filesize

    4KB

  • memory/2496-5-0x0000000000400000-0x0000000001400000-memory.dmp

    Filesize

    16.0MB

  • memory/2496-6-0x0000000077530000-0x0000000077531000-memory.dmp

    Filesize

    4KB