Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-02-2025 22:39

General

  • Target

    454cba8b75d44c489fb4ac8bfce4ecb83359894d1b56c90c2fab321daaa484f8.exe

  • Size

    218KB

  • MD5

    2f15a47f640e3a3ed8a5ac10650a72e3

  • SHA1

    91a10b0d6f6958da163480e737b8df058af3097f

  • SHA256

    454cba8b75d44c489fb4ac8bfce4ecb83359894d1b56c90c2fab321daaa484f8

  • SHA512

    a48ce456462eb5d88aa30ecc4d5cd5a692a430b740b53f5b947d7f236be6144c4380a43036df53f6dc474d7ceeeff6080b5db962524c23e4b7a56aa5608938bd

  • SSDEEP

    6144:BEQBDdO1z7L/EIhZDE9oLfFWlMZT7+DGaMwIC:BEGDdQNHEwWlMxYG/wI

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++.

  • Downloads MZ/PE file 1 IoCs
  • 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 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\454cba8b75d44c489fb4ac8bfce4ecb83359894d1b56c90c2fab321daaa484f8.exe
    "C:\Users\Admin\AppData\Local\Temp\454cba8b75d44c489fb4ac8bfce4ecb83359894d1b56c90c2fab321daaa484f8.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:916
    • 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:212
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7RjIzRDQ0NUItRUY4Qy00Rjg3LTk2QTYtMTE5QkZDQTA5RUNCfSIgdXNlcmlkPSJ7NTEwQ0ZGMkItMjExOS00ODEyLTkwREQtNUEwM0RFOEU1NTZEfSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7N0NFQzg4MTMtQzc3MC00QkUwLUI4MDUtNUM0MTdEREM4NTI4fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI3IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTE1NzE0MDg5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:1048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\apppatch\svchost.exe

    Filesize

    218KB

    MD5

    d65bc64dc821bf3a950c139fc2d31d5e

    SHA1

    858d7c545d19fc54930211cf1e8a9803d385f35f

    SHA256

    60bf0ae202d8af5eaa8e51c6a36ffcd2420bac32d990124c31e29e558daa3f50

    SHA512

    2696213300e38ad8f96f18a6100d1a7497aafb3eae7d7cb26f465f0e5dbf945378dac41f6829f9d9642da60325202567fe7df493b0c553f8af9f18d596352671

  • memory/212-57-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-35-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-17-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/212-18-0x0000000002C00000-0x0000000002CA8000-memory.dmp

    Filesize

    672KB

  • memory/212-56-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-55-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-19-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/212-20-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-24-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-54-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-33-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-42-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-79-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-78-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-77-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-76-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-75-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-74-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-73-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-72-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-71-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-69-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-68-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-67-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-66-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-65-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-64-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-63-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-62-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-61-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-60-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-59-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-58-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-16-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/212-25-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-43-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-22-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-52-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-51-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-50-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-49-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-48-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-47-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-46-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-45-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-44-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-41-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-40-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-39-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-38-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-37-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-36-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-13-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/212-34-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-32-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-31-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-30-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-29-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-28-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-27-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-26-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-70-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/212-53-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/916-1-0x0000000002320000-0x0000000002371000-memory.dmp

    Filesize

    324KB

  • memory/916-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/916-0-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/916-11-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/916-15-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/916-14-0x0000000002320000-0x0000000002371000-memory.dmp

    Filesize

    324KB