Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    02-01-2025 04:05

General

  • Target

    61db1ce150831d33f5a64a8168eddf580018923aebeb6f2d1ce2aa1bd9a49bf8.exe

  • Size

    212KB

  • MD5

    f7ea7f1dafe306bae57374ab6d3ba002

  • SHA1

    da172bf6fcff24508866ea3de85b2774b9aece20

  • SHA256

    61db1ce150831d33f5a64a8168eddf580018923aebeb6f2d1ce2aa1bd9a49bf8

  • SHA512

    266c9131072c291568ad88e95ce02c5b804b7da258afcbe07cc8d0723b265022a04cd8eb7175032c0c8e54927c05999918ef5df8b00d7e8341fa1bd758b8e719

  • SSDEEP

    3072:YGwPsm1VrwxOsf0juzv8j4P1Hr6krr4IEhx9QZe2gO9mG9UHA30Vt3E/vDjb8:YG/iVkO20SFgBhxtW9mG9+Umt3Ezjb8

Malware Config

Extracted

Family

simda

Attributes
  • dga

    gatyfus.com

    lyvyxor.com

    vojyqem.com

    qetyfuv.com

    puvyxil.com

    gahyqah.com

    lyryfyd.com

    vocyzit.com

    qegyqaq.com

    purydyv.com

    gacyzuz.com

    lygymoj.com

    vowydef.com

    qexylup.com

    pufymoq.com

    gaqydeb.com

    lyxylux.com

    vofymik.com

    qeqysag.com

    puzylyp.com

    gadyniw.com

    lymysan.com

    volykyc.com

    qedynul.com

    pumypog.com

    galykes.com

    lysynur.com

    vonypom.com

    qekykev.com

    pupybul.com

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61db1ce150831d33f5a64a8168eddf580018923aebeb6f2d1ce2aa1bd9a49bf8.exe
    "C:\Users\Admin\AppData\Local\Temp\61db1ce150831d33f5a64a8168eddf580018923aebeb6f2d1ce2aa1bd9a49bf8.exe"
    1⤵
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1180
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\8BDE.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Users\Admin\AppData\Local\Temp\9F61.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Windows\apppatch\svchost.exe

    Filesize

    212KB

    MD5

    6e7fe428cc6acfaf52f0c1e5a6e37dbe

    SHA1

    82bb06d4dbef74f0d38e43f4554ddc2e851dd531

    SHA256

    9c85c3931d37436cff8076e6ec73cb83a124d0c5a1b6e4acbc56d26c7a3142eb

    SHA512

    d7d04e18c92b198d2ca71c37460f33940f46e2fdffb87c0769c187327382332a326be2185bfec99dae227405371fb98e029b256c80c918bedff961b8b07bfb30

  • memory/1180-18-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1180-17-0x00000000002A0000-0x00000000002F1000-memory.dmp

    Filesize

    324KB

  • memory/1180-16-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/1180-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1180-0-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/1180-1-0x00000000002A0000-0x00000000002F1000-memory.dmp

    Filesize

    324KB

  • memory/2904-50-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-40-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-75-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-74-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-73-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-72-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-71-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-70-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-69-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-68-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-67-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-66-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-65-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-64-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-63-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-61-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-60-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-59-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-57-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-56-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-54-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-52-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-51-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-78-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-49-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-47-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-84-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-81-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-77-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-76-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-62-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-58-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-55-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-53-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-48-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-46-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-43-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-45-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-44-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-42-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-41-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-38-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-36-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-34-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-33-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/2904-32-0x0000000002040000-0x00000000020E8000-memory.dmp

    Filesize

    672KB

  • memory/2904-30-0x0000000002040000-0x00000000020E8000-memory.dmp

    Filesize

    672KB

  • memory/2904-28-0x0000000002040000-0x00000000020E8000-memory.dmp

    Filesize

    672KB

  • memory/2904-26-0x0000000002040000-0x00000000020E8000-memory.dmp

    Filesize

    672KB

  • memory/2904-24-0x0000000002040000-0x00000000020E8000-memory.dmp

    Filesize

    672KB

  • memory/2904-79-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-80-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-82-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-83-0x0000000002620000-0x00000000026D6000-memory.dmp

    Filesize

    728KB

  • memory/2904-22-0x0000000002040000-0x00000000020E8000-memory.dmp

    Filesize

    672KB

  • memory/2904-21-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/2904-20-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/2904-19-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB