Overview

overview

10

Static

static

10

Document.doc.scr

windows7-x64

9

Document.doc.scr

windows10-2004-x64

9

Analysis

  • max time kernel
    144s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-04-2024 16:11

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General

  • Target

    Document.doc.scr

  • Size

    194KB

  • MD5

    b7b4c97132d03eead1fa9a9352dee6c2

  • SHA1

    c9eb1bdc528076fa9c91668addf0723294ac1575

  • SHA256

    1ecea8b0bc92378bf2bdd1c14ae1628c573569419b91cc34504d2c3f8bb9f8b2

  • SHA512

    cb0023bc6783a94a27d2d4a67c214e8657fd334d1a94a7dba51277363dee2a67e7ecc5fc0788cead1c4e0e2dc7d9aa758203f89dce162184869d20a44d171903

  • SSDEEP

    3072:v6glyuxE4GsUPnliByocWepXKD0/9Wy1Og/ZK99r:v6gDBGpvEByocWehKD0/EWfg3

Score
9/10
ransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (632) 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
  • 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).

  • 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\Document.doc.scr
    "C:\Users\Admin\AppData\Local\Temp\Document.doc.scr" /S
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:2136
    • C:\ProgramData\AA17.tmp
      "C:\ProgramData\AA17.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\AA17.tmp >> NUL
        3⤵
          PID:3616
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:1612
      • C:\Windows\system32\printfilterpipelinesvc.exe
        C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
        1⤵
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:4784
        • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
          /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{4554DCFF-4E21-4EC7-8F71-84A544AD0C42}.xps" 133585351074220000
          2⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of SetWindowsHookEx
          PID:4332
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1328 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:3092

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Initial Access

        Execution

        Persistence

        Privilege Escalation

        Defense Evasion

        Modify Registry

        1
        T1112

        Credential Access

        Unsecured Credentials

        1
        T1552

        Credentials In Files

        1
        T1552.001

        Discovery

        Query Registry

        3
        T1012

        System Information Discovery

        4
        T1082

        Lateral Movement

        Collection

        Data from Local System

        1
        T1005

        Exfiltration

        Command and Control

        Impact

        Defacement

        1
        T1491

        Resource Development

        Reconnaissance

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\$Recycle.Bin\S-1-5-21-3808065738-1666277613-1125846146-1000\PPPPPPPPPPP
          Filesize

          129B

          MD5

          c34c62b885a489b5cfa654f226bcb744

          SHA1

          ce8a7bed5e966832744019044a289904c248f4c7

          SHA256

          c433ba70a33214c60274543e99888d02c14a942b2a84a9c86b330c85adaf74d2

          SHA512

          bd17144d57b29ddffd187a854069beb22a32b68e316b60345c56babacecbf3f0b35aee0e10c187a277954f729fec5c23201ac90bf4dcfaafe6e5acda2ee8db6b

          Download Submit
        • C:\ProgramData\AA17.tmp
          Filesize

          14KB

          MD5

          294e9f64cb1642dd89229fff0592856b

          SHA1

          97b148c27f3da29ba7b18d6aee8a0db9102f47c9

          SHA256

          917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

          SHA512

          b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

          Download Submit
        • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDD
          Filesize

          194KB

          MD5

          97375aeb1307f531411ce0dcaf88c72e

          SHA1

          123b26d65af7d2935676e2fa0148d3cb9b77e752

          SHA256

          9f1fefe2addd4db7498f1afabfc45d68b21f2799a3af81962a8406678880b850

          SHA512

          e66b4515747da47944930fa0af6322739ccb7e4b4c5af5615c73fcfeb79967ae1dbc59dd89fbd7a2e49e7094615c09ab68601aa7f9515970f01a4469cd0bc117

          Download Submit
        • C:\Users\Admin\AppData\Local\Temp\{E871C486-8910-4B66-A217-A76E52B543AD}
          Filesize

          4KB

          MD5

          0b371ae346accac47dc0eb3f8d103462

          SHA1

          4e8c02a71e2ca3ff551a574b2e478cade84b3ab5

          SHA256

          9164ec2d85d6f6d1744038c303e1e57365ebcfff4bbed0bec9c8b069a1411786

          SHA512

          016abb3bc952fb871212396aded79a51622ede5a2f323264b399d4d9dd6bf857dfbbdac9be8fcac6346befc66b0da046772433f32517518d99fc6ff5543458f3

          Download Submit
        • C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
          Filesize

          4KB

          MD5

          24b730c3fb136eb467a6ad2a3212aac6

          SHA1

          f8811585f55d24bd33eefc64e6e1ee7eeaa6268f

          SHA256

          03efe75a6e0c559e5abd9106b6132209cce0414af19b45f68b232cdf619027f2

          SHA512

          63d50daf5ff58e1e98a70046ab65b70f17162c0259a74802c884b447e939983e78bb716689154e92cbb29d1df2355009f012991729d565cb7b69c22d22c44659

          Download Submit
        • C:\te8ZzuVLn.README.txt
          Filesize

          434B

          MD5

          ad29bd8c66e114ff57c943d16c78f72a

          SHA1

          5ab070ee89a36f38facae4dfc8ec5ce3e59af46e

          SHA256

          6fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c

          SHA512

          a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1

          Download Submit
        • F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\DDDDDDDDDDD
          Filesize

          129B

          MD5

          47cb24349480cd6f6d8c7e99e8b0dae9

          SHA1

          ce30e7b81ef8bd9ea7e2b3cb1ec21bd71bf7c00b

          SHA256

          0906825d76a8785cff62941fbf353b3262630dc58fe4f1a17896642ecc528c58

          SHA512

          9fe2c22fe6fb6c8451ee72723154615f59dd19266299aea336c3d8693678abfe9d27bbd425cf853ff976543b05644e265952dab1b3c53acb0759d6077377364e

          Download Submit
        • memory/2456-2811-0x00000000029B0000-0x00000000029C0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/2456-2812-0x00000000029B0000-0x00000000029C0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/2456-2813-0x00000000029B0000-0x00000000029C0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/2456-2-0x00000000029B0000-0x00000000029C0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/2456-1-0x00000000029B0000-0x00000000029C0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/2456-0-0x00000000029B0000-0x00000000029C0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/2796-2876-0x0000000002490000-0x00000000024A0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/2796-2878-0x000000007FE20000-0x000000007FE21000-memory.dmp
          Filesize

          4KB

          Download
        • memory/2796-2903-0x000000007FE20000-0x000000007FE21000-memory.dmp
          Filesize

          4KB

          Download
        • memory/4332-2871-0x00007FFA12A30000-0x00007FFA12A40000-memory.dmp
          Filesize

          64KB

          Download
        • memory/4332-2902-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2828-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2838-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2841-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2834-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2868-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2869-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2870-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2872-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2904-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2832-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2831-0x00007FFA14A90000-0x00007FFA14AA0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/4332-2875-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2874-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2835-0x00007FFA14A90000-0x00007FFA14AA0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/4332-2879-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2880-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2877-0x00007FFA12A30000-0x00007FFA12A40000-memory.dmp
          Filesize

          64KB

          Download
        • memory/4332-2829-0x00007FFA14A90000-0x00007FFA14AA0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/4332-2825-0x00007FFA14A90000-0x00007FFA14AA0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/4332-2873-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download
        • memory/4332-2837-0x00007FFA14A90000-0x00007FFA14AA0000-memory.dmp
          Filesize

          64KB

          Download
        • memory/4332-2836-0x00007FFA54A10000-0x00007FFA54C05000-memory.dmp
          Filesize

          2.0MB

          Download