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Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/12/2024, 08:45

General

  • Target

    8dc47bcab58b6b00866428b48962a9ce9c4aea0f95704a63249c9cc6307fe0c2.exe

  • Size

    375KB

  • MD5

    72961f3f7a8686c7d6c76e4e8273c2e7

  • SHA1

    e901ca470cbff013a18bceb4253e5d01c6b0d1df

  • SHA256

    8dc47bcab58b6b00866428b48962a9ce9c4aea0f95704a63249c9cc6307fe0c2

  • SHA512

    bbd00a1b038c060140de1fd4250e655cbd5d3b6e2fdd6228784bdce6eab3098911e9c99547943fc9a500bd80fa615e3d1d61230047e280fc848f25d3c936e8bb

  • SSDEEP

    6144:R3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9Eis:WmWhND9yJz+b1FcMLmp2ATTSsds

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
  • 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8dc47bcab58b6b00866428b48962a9ce9c4aea0f95704a63249c9cc6307fe0c2.exe
    "C:\Users\Admin\AppData\Local\Temp\8dc47bcab58b6b00866428b48962a9ce9c4aea0f95704a63249c9cc6307fe0c2.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1712
    • 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:2628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    1196c22c027a0eefc4bc9a28e57f3b55

    SHA1

    3122d909cfc2cf81ebf89d4483f8656d084b4f64

    SHA256

    ca2fd604a11c6511c979d759097c0404f0dd609835bec29127523ed5026bb762

    SHA512

    189ee938818f93980dfd3885d233e52010a4066862cc73aee524e08489d1feb5d0d6aeca89c50681231e2861dbb370eeea3b56d154b59da107eccc523cbafe49

  • C:\Users\Admin\AppData\Local\Temp\F2E.tmp

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Users\Admin\AppData\Local\Temp\F2E.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Windows\apppatch\svchost.exe

    Filesize

    375KB

    MD5

    893577089ad08d08b2ae40b1956d50b1

    SHA1

    fdd6ad1b1aea4e65558c9bd6cf0f66621980aa23

    SHA256

    b4452828de7ead71f9724d46dc30f7760f0acba34bc5d4347db2d9179008d8a0

    SHA512

    49501cf984ae64038533e2077eba0b98d134e810a33d73eea64cab570df6c51c2589c76dfa1940368d15b10e635d87d228d42ba3227eafe381d58ede0dfbb7a8

  • memory/1712-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1712-12-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2628-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-14-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-18-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-75-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-74-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-73-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-10-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2628-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-13-0x0000000002730000-0x00000000027D8000-memory.dmp

    Filesize

    672KB

  • memory/2628-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2628-178-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2628-179-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB