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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/12/2024, 00:14

General

  • Target

    78e1bc24f7ff36e59201739453289d2ada4ea7bbf5571fb15d815f37a122e5eb.exe

  • Size

    355KB

  • MD5

    712b0d0c30cf2f39b08c42fb954748a4

  • SHA1

    fbcc4afcbaa790bbcb8861791feec2b4be6aedb2

  • SHA256

    78e1bc24f7ff36e59201739453289d2ada4ea7bbf5571fb15d815f37a122e5eb

  • SHA512

    616b254b0b83fbb6d4b9b4b1902f78aeb153d8a4bcfd607c134c767da727166086234b40396a90f2f367d1e16993f28256ea367197559e0bc37182c693cd2cf0

  • SSDEEP

    6144:X3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiS:kmWhND9yJz+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\78e1bc24f7ff36e59201739453289d2ada4ea7bbf5571fb15d815f37a122e5eb.exe
    "C:\Users\Admin\AppData\Local\Temp\78e1bc24f7ff36e59201739453289d2ada4ea7bbf5571fb15d815f37a122e5eb.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:5012
    • 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:4484

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\805B.tmp

    Filesize

    1KB

    MD5

    ecceb3510cd3d0dc4900e470899218c7

    SHA1

    a90caa990bb2e9ef4054a1ee32a86696fe3620d6

    SHA256

    b31b48ad072fc7f9eb730d3bc57a486205b14ec4665d860d7c5ae7632fc74f55

    SHA512

    b6e086ccde37a68009fa0100546ddb8cee61d521e456d15748fc9ed8169b81fb351c0e6ddf8f4f20bc2c49f6e1d00f74fa9425e8253c6b54eac9310657ff05d1

  • C:\Windows\apppatch\svchost.exe

    Filesize

    355KB

    MD5

    9210ede530cbf7168e20b90bd6855673

    SHA1

    d93945894590366dec62a927f040f943539a081a

    SHA256

    dd5efe40938b9325933eaa46042d6077de1ae9589ff4f8ba4459669a034fc133

    SHA512

    ab24a6d655e0435016e14f7ac92fdbb3bf9022d72efe789aab2a75d11a379244739a95742f4c1420ec5c525270455a780edb786b67c33f97f7174149a674d83f

  • memory/4484-10-0x0000000002720000-0x00000000027C8000-memory.dmp

    Filesize

    672KB

  • memory/4484-14-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-13-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-73-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-17-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-18-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4484-177-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/5012-9-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB