Analysis

  • max time kernel
    120s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    31-10-2024 01:00

General

  • Target

    8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93bN.exe

  • Size

    196KB

  • MD5

    0d3e2cd8851f42192e639b70e109e680

  • SHA1

    55b435c0bce90b295dc5dcc984453241938a4d7b

  • SHA256

    8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93b

  • SHA512

    2fcebe8b568e2c033d9dab06b024e257076ff2461b595e52f746ec5cf8934053b4b0ab06733b2faf7261c37cb5d7190aeec8cb09fe15b2f1b4aac0336213ff24

  • SSDEEP

    6144:0c6BtUaNMtLLowRg4uLhuMXUk4m5xnt0Vu:0juaWLJgzLMkvou

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 Program Files directory 28 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 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93bN.exe
    "C:\Users\Admin\AppData\Local\Temp\8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93bN.exe"
    1⤵
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1176
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2976

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Windows Defender\galynuh.com

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Program Files (x86)\Windows Defender\galyqaz.com

    Filesize

    42KB

    MD5

    ef8635af9608bd524617a7c5f173f926

    SHA1

    188f7d9fc0c8fd3e3c9cfe7cfd18f86639bb83c5

    SHA256

    c1c64776e992f97bea71a2a3e7f18d23a9ea59187f38e6977358ac1652472959

    SHA512

    fb7b056174d4169c3e644e158f07035a1784a1cb06126e584c1e86f16bdcd012e702928940f26ff664ddf043d86149532204d2fad7370453cd96263b2942432b

  • C:\Program Files (x86)\Windows Defender\lysyfyj.com

    Filesize

    481B

    MD5

    bd7b833b460f3054fab7d28dbc755b32

    SHA1

    8a39d02a1269e7327309ea4d8cc09c89299a60f0

    SHA256

    09e8b98e0f7c108e9a1354560f7c7d098bc4938dcbbc7a05ff96b58fe2c1274c

    SHA512

    33928bc9dcd6df561163224baa63df2020b4dcd0ca616e5ed8e4d95720e9d8c1c5683c70880a9e054e77cf16602a33742383b119ae3189d618466d3746b8a011

  • C:\Program Files (x86)\Windows Defender\lyxynyx.com

    Filesize

    1KB

    MD5

    8b414e28ef7e1e0ce01329f8cdbfc7f3

    SHA1

    acb7a2030e2c8f089e850bccde51fc7dee90352f

    SHA256

    a4d96f23967d51c444f320535d74da53178796cb917ede690891848d7798de9e

    SHA512

    46132169e6da9055cfec9d2d87c5cd8ca26519ae0e7db484e019b528d58694a0caddbd221025e59bcf831de77d9918def936e6dd0aa106209922a73f91d2c8fe

  • C:\Program Files (x86)\Windows Defender\qexyhuv.com

    Filesize

    114B

    MD5

    bfde1e9e9c32c1681a16139450c6909d

    SHA1

    7e669b927e6a75a10a0ca29e38e58ddcb49b725e

    SHA256

    e0d020ba1cb6506cee234903a44c747ee0cfa7e2d1e60029e4cd8de9a431512a

    SHA512

    781fd54f155442dd34f9919b3cd063ee399db411bbfe15f2bdc43d3ab8ac2d04e1011b2c99fab42bebf7b903a94e09aaaef71b7a465d2d04b417f6dad8e8e396

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\8P9TO0C6\login[2].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • \Windows\AppPatch\svchost.exe

    Filesize

    196KB

    MD5

    b6437e0723a6e2cd8b519499eba1c99d

    SHA1

    8fea464bca5ce91d0338bf1a1af4e4c93c50be2d

    SHA256

    177babe4d6b7cfa1f7821a8075cc3d3c5fd00b199426003efa93dc2c05b2444e

    SHA512

    f10603d5f70640eb51b1fc78c0086203c7b7aa9d7790a102fba2c5409a4869e6bbadc5861bbadd10883080e12729ce6a5b50ff5a20f5c281cc9187545bcdcbd4

  • memory/1176-0-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/1176-16-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/1176-17-0x0000000000230000-0x000000000027F000-memory.dmp

    Filesize

    316KB

  • memory/1176-19-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/1176-2-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/1176-1-0x0000000000230000-0x000000000027F000-memory.dmp

    Filesize

    316KB

  • memory/2976-73-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-66-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-33-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/2976-28-0x00000000020A0000-0x0000000002144000-memory.dmp

    Filesize

    656KB

  • memory/2976-26-0x00000000020A0000-0x0000000002144000-memory.dmp

    Filesize

    656KB

  • memory/2976-22-0x00000000020A0000-0x0000000002144000-memory.dmp

    Filesize

    656KB

  • memory/2976-34-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-36-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-38-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-50-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-52-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-84-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-83-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-82-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-81-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-80-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-79-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-77-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-76-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-75-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-74-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-32-0x00000000020A0000-0x0000000002144000-memory.dmp

    Filesize

    656KB

  • memory/2976-72-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-71-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-70-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-69-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-68-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-67-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-48-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-30-0x00000000020A0000-0x0000000002144000-memory.dmp

    Filesize

    656KB

  • memory/2976-65-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-64-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-63-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-62-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-61-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-60-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-59-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-57-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-56-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-55-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-54-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-51-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-78-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-41-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-58-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-53-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-49-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-47-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-46-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-45-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-44-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-43-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-42-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB

  • memory/2976-25-0x00000000020A0000-0x0000000002144000-memory.dmp

    Filesize

    656KB

  • memory/2976-21-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/2976-20-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/2976-18-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/2976-40-0x00000000023D0000-0x0000000002482000-memory.dmp

    Filesize

    712KB