Overview

overview

10

Static

static

10

202409158b...de.exe

windows7-x64

9

202409158b...de.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/09/2024, 08:54

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General

  • Target
    202409158b4ff23ebd887a44d0383ef513aca063darkside.exe
  • Size 146KB
  • Sample240915-kt7d8swcml
  • SHA256 cd4a001ca9419ac6e0220333a5d0a843698abf5bab58040fdf1725df6e2f34ed
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (603) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

    discovery
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\202409158b4ff23ebd887a44d0383ef513aca063darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\202409158b4ff23ebd887a44d0383ef513aca063darkside.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1172
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:1544
    • C:\ProgramData\ED8D.tmp
      "C:\ProgramData\ED8D.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:3020
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\ED8D.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2736
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:1500
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3956
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{C24619A2-1F26-4DD8-A7A2-DA006E0719C8}.xps" 133708640892640000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:1684

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          AAAAAAAAAAA
          • Path C:\$Recycle.Bin\S-1-5-21-4182098368-2521458979-3782681353-1000\AAAAAAAAAAA
          • Size 129B
          • SHA256 3df57fe1f1c02c74a5ee994f71c7c74ef7fdedc6ad73ea3ffb52da364e78751b
          • MD5 SHA1 SHA512
          Submit Download

          ED8D.tmp
          • Path C:\ProgramData\ED8D.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          SsCWUDNQz.README.txt
          • Path C:\SsCWUDNQz.README.txt
          • Size 343B
          • SHA256 eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7
          • MD5 SHA1 SHA512
          Submit Download

          DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
          • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
          • Size 146KB
          • SHA256 c237053753812173def4be25c06c1e5a938327ebfe390ac751725ef9388052de
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          {91F33852-CE00-42B0-96D2-176D3B878147}
          • Path C:\Users\Admin\AppData\Local\Temp\{91F33852-CE00-42B0-96D2-176D3B878147}
          • Size 4KB
          • SHA256 2331e82ac6a67a5ed1139fec568d2f88f34d4f6b0c17d9d9885321fbf2d2d85d
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          Open Notebook.onetoc2
          • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
          • Size 4KB
          • SHA256 62ce99f86e43c730a3250d1744c30297958c841bd2a08b587dfbb46fca7faca7
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          DDDDDDDDDDD
          • Path F:\$RECYCLE.BIN\S-1-5-21-4182098368-2521458979-3782681353-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 e5c97e5183c3dbee7e46a325465bf6f6261aa70070a9a5a066ac2d9387696ad3
          • MD5 SHA1 SHA512
          Submit Download

          memory/1172-0-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download

          memory/1172-2-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download

          memory/1172-2950-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download

          memory/1172-2952-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download

          memory/1172-2951-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download

          memory/1172-1-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download

          memory/1684-2968-0x00007FF7E3C90000-0x00007FF7E3CA0000-memory.dmp
          Download

          memory/1684-2971-0x00007FF7E3C90000-0x00007FF7E3CA0000-memory.dmp
          Download

          memory/1684-3000-0x00007FF7E3C90000-0x00007FF7E3CA0000-memory.dmp
          Download

          memory/1684-3001-0x00007FF7E1C30000-0x00007FF7E1C40000-memory.dmp
          Download

          memory/1684-3002-0x00007FF7E1C30000-0x00007FF7E1C40000-memory.dmp
          Download

          memory/1684-2969-0x00007FF7E3C90000-0x00007FF7E3CA0000-memory.dmp
          Download

          memory/1684-2970-0x00007FF7E3C90000-0x00007FF7E3CA0000-memory.dmp
          Download