Analysis

  • max time kernel
    120s
  • 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
    26-12-2024 14:54

General

  • Target

    a93c8d8cd380b41903e4c4a9ea77389b5de2aa956c884d910719643326ee6328N.exe

  • Size

    205KB

  • MD5

    4ecfb83eacf588772465a8a9fc750c60

  • SHA1

    23324ffd078e14b39bb77c90b5785298168b9de0

  • SHA256

    a93c8d8cd380b41903e4c4a9ea77389b5de2aa956c884d910719643326ee6328

  • SHA512

    97ac99de3f87b07885ffc08c888ce97479706320200a15770ad2613a57b2c88393a905bb1bf7676b7a9861c1416b508b50da628ca7d0e8cfa71aed7d069ba5aa

  • SSDEEP

    3072:47VD4DUHnNZkfOP6sfIOpJ9C3hPlGxt1UhRkgyankTIzfwAYzWcXCyqT36zhRRKy:+zHnMLm5GNGxHUhtnkdpHqTKzhh8i

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 Program Files directory 32 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 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a93c8d8cd380b41903e4c4a9ea77389b5de2aa956c884d910719643326ee6328N.exe
    "C:\Users\Admin\AppData\Local\Temp\a93c8d8cd380b41903e4c4a9ea77389b5de2aa956c884d910719643326ee6328N.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:2064
    • 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:2188

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    24KB

    MD5

    5e3609e73f87ba87cb907379103b14d9

    SHA1

    cab5870767b53d33ef918ad036ac44f568472fda

    SHA256

    15b1feaa440860a264977c1a05d2203c776422b9919a9d41ee9e6853ee35f5df

    SHA512

    0e08d768bae33fa591d50b3558c21b5948e75dc0c61228709f68135c3878f1ceb9e8761253e51b8624834f63638e478389fa33eec584c506e7bb8ba8ac87b36b

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

    Filesize

    42KB

    MD5

    ccff5a744d8aed421110e41005282fcf

    SHA1

    2cf62f10d22b442cc24c4af5f7b6bb03c1395500

    SHA256

    89eeb0cfc1040e7a2867860ccb0ef31183542c73137e2a2f7e4deb8d87626e3c

    SHA512

    74309b54861e23f4fe1e2eb3e499073e6648f26d7dba1fa649d9fa0572ea809b2165de484c37f3b90766c1fbab8ebba8d0d9b9c1d675fa1f036ba18a00ac64bf

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

    Filesize

    61KB

    MD5

    db5833dacaedd317d1828a4550d417e0

    SHA1

    e0794a343d1731bc9e8031f22a546c5e9e400b1f

    SHA256

    9ac704f86bc34b9847bdfa221f2f2dd34972628638a482e332cd71677c957d18

    SHA512

    c909145221c86bf358df42164c0750933b13d3124949c1e319f9fccc415c3dd9f6b5dc2e32b60877335906af08d9563e96ec46d6e05c6a3fb986ffe6a3249f45

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

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6IJLDY7V\login[4].htm

    Filesize

    168B

    MD5

    d57e3a550060f85d44a175139ea23021

    SHA1

    2c5cb3428a322c9709a34d04dd86fe7628f8f0a6

    SHA256

    43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c

    SHA512

    0364fe6a010fce7a3f4a6344c84468c64b20fd131f3160fc649db78f1075ba52d8a1c4496e50dbe27c357e01ee52e94cdcda8f7927cba28d5f2f45b9da690063

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\W9QJOIKH\login[2].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Windows\apppatch\svchost.exe

    Filesize

    205KB

    MD5

    8f8c64911a5a62f4b862a7e6c73e26dc

    SHA1

    e9115660f268153755431fcbfe3dba209fa0eca2

    SHA256

    bddcb8f570ce92ad75250f02199a41a1d7e8cacbaa116905b2b1e17f108ea342

    SHA512

    bd238dcfdab8d7fe9f6183eaddda002feb8f8460e52bc2a310db402125c6f509d64ebb1ceeeed32dc9ebd29a795487562f1d87232524b604a8c92d7373e6f28f

  • memory/2064-2-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2064-15-0x0000000002220000-0x000000000226F000-memory.dmp

    Filesize

    316KB

  • memory/2064-14-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/2064-16-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2064-1-0x0000000002220000-0x000000000226F000-memory.dmp

    Filesize

    316KB

  • memory/2064-0-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/2188-64-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-58-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-20-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-22-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-24-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-79-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-74-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-54-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-43-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-40-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-28-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-27-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-78-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-77-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-76-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-75-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-73-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-72-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-71-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-70-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-69-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-68-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-67-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-66-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-65-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-18-0x0000000002A10000-0x0000000002AB4000-memory.dmp

    Filesize

    656KB

  • memory/2188-63-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-62-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-61-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-60-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-59-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-19-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/2188-57-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-56-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-55-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-53-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-52-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-51-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-50-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-49-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-48-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-47-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-46-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-45-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-44-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-42-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-41-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-39-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-38-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-36-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-35-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-34-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-33-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-32-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-30-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-29-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-26-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-17-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/2188-13-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/2188-12-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/2188-37-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-31-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB

  • memory/2188-25-0x0000000002C00000-0x0000000002CB2000-memory.dmp

    Filesize

    712KB