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Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    23/01/2025, 09:39

General

  • Target

    223e82b8cf20efaa72667df87c34c3d765b224718c3492618f8b9511e58fe0d0N.exe

  • Size

    218KB

  • MD5

    d20e25e1657cde7ef08fe84527b5adf0

  • SHA1

    7efa2cac4df35bb5223279af73802d7e08900aa2

  • SHA256

    223e82b8cf20efaa72667df87c34c3d765b224718c3492618f8b9511e58fe0d0

  • SHA512

    acc6208474e1e850be2ce6fa3776c922d9aba91bca8c9776510469ca3459352225ed21f03b3529bb3b498a464f31d810b1cf8e12b1d15ac09dfac1c0140807b7

  • SSDEEP

    3072:/vm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:X1SyAJp6rjn1gOObn4b6h9h

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\223e82b8cf20efaa72667df87c34c3d765b224718c3492618f8b9511e58fe0d0N.exe
    "C:\Users\Admin\AppData\Local\Temp\223e82b8cf20efaa72667df87c34c3d765b224718c3492618f8b9511e58fe0d0N.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:2060
    • 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:1760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\E106.tmp

    Filesize

    481B

    MD5

    47521c02d1f25b0c56a10a506d431115

    SHA1

    4a4e3673b3153c2193f67a3ea5a806e8d1381d6b

    SHA256

    973823ab38d9b69306e58f4e69450d786de8efbbce78579df55db8f28d57444b

    SHA512

    11909dd7f087434d51d6df0d119b601773d6ec78766d1595294a8884e80789aa4024e67358e137a377f0a045aaec9e39e4de3e090bb01c1092b108705199fada

  • \Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    1a33b136b877bbc8af24f6d573353dcc

    SHA1

    8979f259eb3c4515a23a0227f6c3d0a79dbad73d

    SHA256

    0a1fe8a44d079462dc56525ae46727ed37cad358be00cdfc6ea925100089f477

    SHA512

    9b8690d75ad69612d6d84cc42fbbde26e1866cd107e490dbbf49d53eb4b210526341a90381c3e5ff1f64abbd9a76e34d2b9f35b610985baaf91c13117f4d21cf

  • memory/1760-73-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-62-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-18-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/1760-45-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-38-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-19-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/1760-30-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/1760-28-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/1760-31-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/1760-26-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/1760-24-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/1760-22-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/1760-20-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/1760-32-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-34-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-36-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-51-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-57-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-84-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-83-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-82-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-81-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-80-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-79-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-78-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-77-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-76-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-75-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-74-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-39-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-40-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-69-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-71-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-72-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-68-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-67-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-66-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-65-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-64-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-63-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-70-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-61-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-60-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-59-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-58-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-56-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-55-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-54-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-53-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-52-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-50-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-49-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-48-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-47-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-46-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-44-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-43-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-42-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/1760-41-0x00000000024D0000-0x0000000002586000-memory.dmp

    Filesize

    728KB

  • memory/2060-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2060-15-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2060-0-0x0000000000260000-0x00000000002B1000-memory.dmp

    Filesize

    324KB

  • memory/2060-16-0x0000000000260000-0x00000000002B1000-memory.dmp

    Filesize

    324KB

  • memory/2060-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB