Analysis

  • max time kernel
    23s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2024 01:27

General

  • Target

    3b914f143432c17ca607ba232ba0122f78096dc04dd7ce3d297ed0036f3b1545.exe

  • Size

    403KB

  • MD5

    77011ba24d1088a963898abc72c6e129

  • SHA1

    08a84da40cb625471026568b2399538399b44f98

  • SHA256

    3b914f143432c17ca607ba232ba0122f78096dc04dd7ce3d297ed0036f3b1545

  • SHA512

    91e07652791eb55cc4684a97daa119cea2608e03b213675b43751aac9682955e6f36dc7b0ebf471778063182312abbc1dfb9925f95c29399daaeac614c933ba6

  • SSDEEP

    12288:uJ8GsZTOusN+VVrto1ma41z1esugf9xmolEO:uJ8vTOFN+VVZo1ma4B1eQ/met

Malware Config

Extracted

Family

vidar

Version

11

Botnet

58cd250b15e666e5f72fcf5caa6cb131

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Extracted

Family

lumma

C2

https://drawzhotdog.shop/api

https://gutterydhowi.shop/api

https://ghostreedmnu.shop/api

https://offensivedzvju.shop/api

Signatures

  • Detect Vidar Stealer 15 IoCs
  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Drops startup file 64 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b914f143432c17ca607ba232ba0122f78096dc04dd7ce3d297ed0036f3b1545.exe
    "C:\Users\Admin\AppData\Local\Temp\3b914f143432c17ca607ba232ba0122f78096dc04dd7ce3d297ed0036f3b1545.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Checks computer location settings
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1120
      • C:\ProgramData\BAKEBAFIIE.exe
        "C:\ProgramData\BAKEBAFIIE.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4540
        • C:\Users\Admin\AppData\Local\Temp\Malewmf\MFDBG.exe
          "C:\Users\Admin\AppData\Local\Temp\Malewmf\MFDBG.exe"
          4⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1284
          • C:\Users\Admin\AppData\Local\Temp\Malewmf\FDWDZ.exe
            "C:\Users\Admin\AppData\Local\Temp\Malewmf\FDWDZ.exe" --checker
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:4800
      • C:\ProgramData\DHIDHIEGII.exe
        "C:\ProgramData\DHIDHIEGII.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3120
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4528
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\HJJEGCAAECBF" & exit
        3⤵
          PID:3108
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:1068
    • 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 --field-trial-handle=4160,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=3820 /prefetch:8
      1⤵
        PID:3508
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --field-trial-handle=3040,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=2324 /prefetch:3
        1⤵
          PID:2336

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\BAKEBAFIIE.exe

          Filesize

          25KB

          MD5

          168087c84c5ff3664e5e2f4eec18d7dd

          SHA1

          639e9e87103f576617ed08c50910ca92fe5c8c5b

          SHA256

          2a7cdb79045658b9c02ebbb159e5b3680d7d6d832dbd757572f7d202c3fa935d

          SHA512

          89491261e1234f917964566def4b1a50505ba4c2eb90d14c19e2130d78fe65cd61c4bba685909109c7088b35e7fd48f6311ace7a0dd8c703a6d1b1d23d1a54bb

        • C:\ProgramData\DHIDHIEGII.exe

          Filesize

          368KB

          MD5

          0cee1d66332dec523210f62e479284b9

          SHA1

          33f950916e13a6ec654c52160ee47e88c64a5724

          SHA256

          0a6a258bfdb9b1947f2945b44e274ff3f06a7c5c733ff83c2a71c5f911fa9cc0

          SHA512

          603aa4834c6d3a9f3b6b1629eeb2108cecfd7192110f0cf948f2971957a9231ad9d405d8424e3a41b32a8ff415d8f84e55afdec38bf996703093084162d11972

        • C:\ProgramData\mozglue.dll

          Filesize

          593KB

          MD5

          c8fd9be83bc728cc04beffafc2907fe9

          SHA1

          95ab9f701e0024cedfbd312bcfe4e726744c4f2e

          SHA256

          ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

          SHA512

          fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

        • C:\ProgramData\nss3.dll

          Filesize

          2.0MB

          MD5

          1cc453cdf74f31e4d913ff9c10acdde2

          SHA1

          6e85eae544d6e965f15fa5c39700fa7202f3aafe

          SHA256

          ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

          SHA512

          dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

          Filesize

          2B

          MD5

          d751713988987e9331980363e24189ce

          SHA1

          97d170e1550eee4afc0af065b78cda302a97674c

          SHA256

          4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

          SHA512

          b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

          Filesize

          40B

          MD5

          20d4b8fa017a12a108c87f540836e250

          SHA1

          1ac617fac131262b6d3ce1f52f5907e31d5f6f00

          SHA256

          6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

          SHA512

          507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MFDBG_e1bea84159094111a0bc8aa7ad07942d.lnk

          Filesize

          1KB

          MD5

          e6c29ccf29afc71a3030e6aba2af2d76

          SHA1

          a27c6ea8feedc86f5be934808fad9b84d8d12f85

          SHA256

          78ed53a8e6a3628474b90089bc6b872ac439f7b039aa39f1e8ef1c7117dadd69

          SHA512

          785237f65e95f8e80b4435a5e16070a19d1c90c151fad740ebc12e5be12d9da0353197a57f1e9d4047ae59a6cd9b477596146d86568226343787cbd270cb6a3f

        • memory/1120-36-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-60-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-35-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-19-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-45-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-18-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-52-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-20-0x0000000022220000-0x000000002247F000-memory.dmp

          Filesize

          2.4MB

        • memory/1120-61-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-6-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-8-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-3-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-86-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-87-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-94-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1120-95-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1652-68-0x0000000075120000-0x00000000758D0000-memory.dmp

          Filesize

          7.7MB

        • memory/1652-0-0x000000007512E000-0x000000007512F000-memory.dmp

          Filesize

          4KB

        • memory/1652-11-0x0000000075120000-0x00000000758D0000-memory.dmp

          Filesize

          7.7MB

        • memory/1652-1-0x0000000000740000-0x00000000007A8000-memory.dmp

          Filesize

          416KB

        • memory/3120-149-0x0000000000CF0000-0x0000000000D50000-memory.dmp

          Filesize

          384KB

        • memory/4528-161-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/4528-165-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/4528-163-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/4540-109-0x000000007299E000-0x000000007299F000-memory.dmp

          Filesize

          4KB

        • memory/4540-110-0x00000000002D0000-0x00000000002DC000-memory.dmp

          Filesize

          48KB

        • memory/4540-113-0x0000000072990000-0x0000000073140000-memory.dmp

          Filesize

          7.7MB

        • memory/4540-140-0x0000000072990000-0x0000000073140000-memory.dmp

          Filesize

          7.7MB