Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    27-12-2024 22:29

General

  • Target

    6030275833f7ee07d29354209f0a3797af96caa7ae4c8586e8cfb0887278de16.exe

  • Size

    375KB

  • MD5

    fb51a2f127d5ff75b056509ff81fdaa8

  • SHA1

    23a23eff5c986513858c12c9de7a1b35cf38e574

  • SHA256

    6030275833f7ee07d29354209f0a3797af96caa7ae4c8586e8cfb0887278de16

  • SHA512

    278bba4f3d81a54e51f4055ce5deaff7742a4fd1a39364f5c732268efbc9f7a3829b43ca2b3e3a54d34497d80511b15f216f5dc752ce2ec8f34f601298117ac4

  • SSDEEP

    6144:w3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiU:LmWhND9yJz+b1FcMLmp2ATTSsdU

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\6030275833f7ee07d29354209f0a3797af96caa7ae4c8586e8cfb0887278de16.exe
    "C:\Users\Admin\AppData\Local\Temp\6030275833f7ee07d29354209f0a3797af96caa7ae4c8586e8cfb0887278de16.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:2188
    • 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:2728

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\1344.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\1F5C.tmp

    Filesize

    42KB

    MD5

    2e139ad0b397b59ca23c6d4cdc2caaf6

    SHA1

    50ac74df0bbea2109c436362a6074aeb10247970

    SHA256

    e841afe637a7735d5d879a5f4c6f11a03b6e1f664cb9f8510d5c302b677f06e2

    SHA512

    32ae07beac52b3727dc4af445848da8d7b0bccc38b95278ab2b657d428dcc977073f26d50ab1983e91ac031b9a92ebb0fa0b82dddba48dc737d7e448cebb1233

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    375KB

    MD5

    70c4f76fbed51c556d058c5858d80226

    SHA1

    807c3f9a4e1135894d569c84de3677e01c65fb61

    SHA256

    4349969999bfd752530a3e06e3e77a52120f8a319e9b1408040416af8addf981

    SHA512

    3c403ce1f8cdd851c894d2f7fdd7d612c91b5e966ce05b2b5d476e75e9eb0b5bd939b3150f95bfa8c0347e80db3b6ec0e1f20bacb9296b447f44b8577438cfea

  • memory/2188-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2188-15-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2728-16-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2728-19-0x0000000000340000-0x00000000003E8000-memory.dmp

    Filesize

    672KB

  • memory/2728-27-0x0000000000340000-0x00000000003E8000-memory.dmp

    Filesize

    672KB

  • memory/2728-25-0x0000000000340000-0x00000000003E8000-memory.dmp

    Filesize

    672KB

  • memory/2728-23-0x0000000000340000-0x00000000003E8000-memory.dmp

    Filesize

    672KB

  • memory/2728-21-0x0000000000340000-0x00000000003E8000-memory.dmp

    Filesize

    672KB

  • memory/2728-17-0x0000000000340000-0x00000000003E8000-memory.dmp

    Filesize

    672KB

  • memory/2728-30-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-31-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-33-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-39-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-41-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-77-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-81-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-80-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-79-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-78-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-76-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-75-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-74-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-73-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-72-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-71-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-70-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-69-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-67-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-66-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-65-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-64-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-63-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-62-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-61-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-60-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-59-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-58-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-57-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-56-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-55-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-54-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-53-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-51-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-50-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-49-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-48-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-47-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-46-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-45-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-44-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-43-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-42-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-40-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-68-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-38-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-37-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-52-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-36-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-35-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB

  • memory/2728-193-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2728-195-0x0000000002370000-0x0000000002426000-memory.dmp

    Filesize

    728KB