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Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    19/12/2024, 00:26

General

  • Target

    acb2feedd61a638138a49b1899ad9fc6887da234ecb681d5b256dc664235288eN.exe

  • Size

    218KB

  • MD5

    80431877763ed7c320b494bf5f884220

  • SHA1

    80000a888a827ba34fed97580b499f62457ceaea

  • SHA256

    acb2feedd61a638138a49b1899ad9fc6887da234ecb681d5b256dc664235288e

  • SHA512

    0b913d0311a72488fb763d6645178575fcf4d949454e222362201a3ec4b9d6f2d0d3324687f44ef7f40170bcc9a4b72a3cbefeeb2ec05470bbb7312e9d6bbd58

  • SSDEEP

    3072:Uvm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:i1SyAJp6rjn1gOObn4b6h9h

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\acb2feedd61a638138a49b1899ad9fc6887da234ecb681d5b256dc664235288eN.exe
    "C:\Users\Admin\AppData\Local\Temp\acb2feedd61a638138a49b1899ad9fc6887da234ecb681d5b256dc664235288eN.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:2204
    • 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:2528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\UQFHO95Z\login[3].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\7C95.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\93C8.tmp

    Filesize

    1KB

    MD5

    44e236b269d2e94f3e68a8149c6805e7

    SHA1

    12bc721f65020432861385c179035fd18f8ce83d

    SHA256

    a74df25329b86f64f849a3991aa15e34f4fe6e3bfd264de15c688bd5fa2edae6

    SHA512

    cddaf5040423e388766857942dfc9fcfe55eb2b676fd2626a9d021a36846eac402f2181c28e7d4683cfe3c6e4586f387abdf78fd65683d5066102931286b064f

  • C:\Users\Admin\AppData\Local\Temp\F503.tmp

    Filesize

    24KB

    MD5

    b8a51dc6ab6071998470c9f52973a360

    SHA1

    889412e857762ec25127473462fde52ed9f9f101

    SHA256

    3d3de73c04f8b91ce581764f728f26a7c7742f34d5e886152bc8d540f7e8f201

    SHA512

    665619de85b3b941d67a74ccf1b955dddf86d9581938924f2c65726cb2b752a34520a7187f8177c69f63ad1344eae13a15917f7cbcff76738447a415fbb4f729

  • C:\Users\Admin\AppData\Local\Temp\F574.tmp

    Filesize

    99KB

    MD5

    fc2c3e78becde742f92cee495eb3b7ca

    SHA1

    24444d772c22bb6710395bb03ac747feb6908dab

    SHA256

    12a31121ae24b9e195cc73bb7c9d773d4dc91303d27deb5cbc84dd536d503318

    SHA512

    16f5443866bc18eb38bd413817f4255434ea4608e255997ade35a34adc46def2968abbe73aa2285dce76cbdb7bdef4b6c7f5051b5400735755615fc9d1812b95

  • \Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    a7bc60008a13eb50abc10f1faa344d01

    SHA1

    4e6b32121061d201c27a61f923b6cee352ca78b2

    SHA256

    3584c9ca608c0a469673cc8577e3ac3b12d808c05643342a0cb0e2d53191cf81

    SHA512

    ef983e75802933dfbf2ddf9c034e7260774cf821ddb72e6c207d643b4680f0930116ccac963b80ac5b0b36d4d70697f9e344a10a1e9763b012f160a8729fcb86

  • memory/2204-0-0x0000000000320000-0x0000000000371000-memory.dmp

    Filesize

    324KB

  • memory/2204-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2204-15-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2204-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2204-16-0x0000000000320000-0x0000000000371000-memory.dmp

    Filesize

    324KB

  • memory/2528-68-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-58-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-31-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2528-19-0x0000000002430000-0x00000000024D8000-memory.dmp

    Filesize

    672KB

  • memory/2528-29-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2528-25-0x0000000002430000-0x00000000024D8000-memory.dmp

    Filesize

    672KB

  • memory/2528-32-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-34-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-36-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-39-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-46-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-83-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-82-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-81-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-79-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-78-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-76-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-75-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-73-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-72-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-70-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-69-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-27-0x0000000002430000-0x00000000024D8000-memory.dmp

    Filesize

    672KB

  • memory/2528-66-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-65-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-63-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-62-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-61-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-59-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-23-0x0000000002430000-0x00000000024D8000-memory.dmp

    Filesize

    672KB

  • memory/2528-56-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-55-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-53-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-52-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-51-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-49-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-48-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-47-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-84-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-80-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-77-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-45-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-74-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-71-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-44-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-67-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-43-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-64-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-42-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-60-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-57-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-41-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-54-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-50-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-30-0x0000000002430000-0x00000000024D8000-memory.dmp

    Filesize

    672KB

  • memory/2528-21-0x0000000002430000-0x00000000024D8000-memory.dmp

    Filesize

    672KB

  • memory/2528-18-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2528-40-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB

  • memory/2528-38-0x00000000025E0000-0x0000000002696000-memory.dmp

    Filesize

    728KB