Overview

overview

10

Static

static

10

fa7dc4c226...aa.exe

windows7-x64

9

fa7dc4c226...aa.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    146s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-09-2024 02:07

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General

  • Target

    fa7dc4c2263227936ec13d9086ab35aa.exe

  • Size

    146KB

  • MD5

    fa7dc4c2263227936ec13d9086ab35aa

  • SHA1

    f6ebda1c5b4ed7c1048a89f4fcde70ed12c3f302

  • SHA256

    914efa089dcb98c5a81f548fa4e8769ef1d8abbcd891a25812fa4771aac24d4a

  • SHA512

    712113a7a690254c9bf79496d4220daf4828c284f434c3bbbf61cb55dd625fce327dff15025daa24ecc18634b81380a920dc4640c7009ee482b1962b11cb2fd7

  • SSDEEP

    3072:q6glyuxE4GsUPnliByocWepccEte6HsR0XAN1n:q6gDBGpvEByocWeicMg

Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (626) 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\fa7dc4c2263227936ec13d9086ab35aa.exe
    "C:\Users\Admin\AppData\Local\Temp\fa7dc4c2263227936ec13d9086ab35aa.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:3828
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:4464
    • C:\ProgramData\F260.tmp
      "C:\ProgramData\F260.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:2192
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\F260.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3984
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:3464
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3992
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{A42A7E21-B2AB-4DE2-A2C7-A6113BDA9ED4}.xps" 133710124390170000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:2036

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-1302416131-1437503476-2806442725-1000\PPPPPPPPPPP
      Filesize

      129B

      MD5

      2ebc72519a192157c91e198734b3ea3b

      SHA1

      e24e5a0d7440b92ae13cc74ad2d78c4203cdf0d9

      SHA256

      d9f958b4b36341099002b68ab12593ae453366acf68e7d8c2af4c3bcf0d3d570

      SHA512

      bb19e561df026996fd80eab436d9a88de0c1678e784544a0450b4d2c722a73918f14a0d72f90b69cb51129e5b0c57a6c85dbd20f33422a454b55f1a8b9d50ee4

      Download Submit

    • C:\IdCxsG00Z.README.txt
      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

      Download Submit

    • C:\ProgramData\F260.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
      Filesize

      146KB

      MD5

      7483dd516791520f9150e259b979a60d

      SHA1

      db7367c19d2ff77caf72c7944457d1435dd8e08b

      SHA256

      f5d4e12ac9a19c9940fce78dfb0f0ef72b4155ea8d4c1ec97c8f01c78eec426e

      SHA512

      cd86297e4429639e21f82929c9658f3f0b8facbc2321dc2cde5531900d60c98baaf81bd195aa82b464429fd631f4a95120cb1ad1f0dfffd69734c4ef45534689

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\{E8A565E7-CC12-4DF1-937D-210EFF32140E}
      Filesize

      4KB

      MD5

      18d2a0ce6df78698797a31da13a55523

      SHA1

      c3a199a8c4ef5cb8c7f62412888dce10a24238ea

      SHA256

      a86faf060275e394419477f5c60c5798f9fafebe0fb11a567462aa99510ef683

      SHA512

      1d63d82df6bcb3586e4e12a00be7da391ee9ee5675bc0fdf7587e2879d541039c78b908e0ac3bdc041d633b4b0abd852a9cdb97a55296e9f8c6fad4c20831617

      Download Submit

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

      4KB

      MD5

      450e9ddf56cbe6866af5a13427028813

      SHA1

      5fce8d1deb964bb90318c456281b549332beb36f

      SHA256

      ce900b8c09fe745b701ac64771f52859fea5c2f3f1fda34220b3576ce013246d

      SHA512

      93b35ec52b62b29b74327bd351f35ce7e2b18acf12ecebdd2b1441783cc7b498c5c841aec5468bb61bd7d9d878bb2af6c66d4e783fecb085e89b0ff695b000e9

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-1302416131-1437503476-2806442725-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      cd822762bb46949bef7b1087792cc54e

      SHA1

      4d93b1f4e53fc7bf35bf332e9dab98239992a2e0

      SHA256

      34ff43ad9d860351a34e4bcd021dddf8c1ed704df1c5ca16aa88784934141153

      SHA512

      cc2a4c0f4516b45693158d566d0ebb5c11a06112b1a64a815b670f213420db85a742906080378e0f0320c4f0e622b6d7cf90c66d5fe5d052c32a5ed41556e468

      Download Submit

    • memory/2036-2986-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2036-2984-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2036-2982-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2036-2983-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2036-2985-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2036-3015-0x00007FFAB15E0000-0x00007FFAB15F0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2036-3016-0x00007FFAB15E0000-0x00007FFAB15F0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3828-2966-0x0000000002780000-0x0000000002790000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3828-2964-0x0000000002780000-0x0000000002790000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3828-2965-0x0000000002780000-0x0000000002790000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3828-1-0x0000000002780000-0x0000000002790000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3828-2-0x0000000002780000-0x0000000002790000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3828-0-0x0000000002780000-0x0000000002790000-memory.dmp

      Filesize

      64KB

      Download