Analysis

  • max time kernel
    131s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-07-2024 00:56

General

  • Target

    software.exe

  • Size

    5.5MB

  • MD5

    1ed6f9d578e14edad0bf47edf1f6269f

  • SHA1

    0e6546d7a7f237a4c094e24810fd4ab29ab6a970

  • SHA256

    83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3

  • SHA512

    7481e391bc9fd0b0a30ca7464847e6ab0bbaa4febb8bfb33407742fd2e90f7fb0d88fd2ab0dc49fa499864e16a234d6f910926944c2a3ce337d614351dccfd60

  • SSDEEP

    98304:zeL9fRCBL/JS6w1PMcf5blPwJp003KOIupEAjlgJHc6:zeL9ROL/Eh/PQbaObEACl

Malware Config

Extracted

Family

vidar

C2

https://t.me/bu77un

https://steamcommunity.com/profiles/76561199730044335

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1

Extracted

Family

lumma

C2

https://civilizzzationo.shop/api

Signatures

  • Detect Vidar Stealer 5 IoCs
  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • 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.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Program crash 1 IoCs
  • 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 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\software.exe
    "C:\Users\Admin\AppData\Local\Temp\software.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1456
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3552
      • C:\ProgramData\BGDAAEHDHI.exe
        "C:\ProgramData\BGDAAEHDHI.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:688
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
            PID:1244
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:2892
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 688 -s 280
            4⤵
            • Program crash
            PID:2108
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\GCGDGHCBGDHJ" & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1376
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:4668
    • 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=4056,i,7252135083366563450,1411796122645726339,262144 --variations-seed-version --mojo-platform-channel-handle=4116 /prefetch:8
      1⤵
        PID:2756
      • 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=3100,i,7252135083366563450,1411796122645726339,262144 --variations-seed-version --mojo-platform-channel-handle=4120 /prefetch:3
        1⤵
          PID:4828
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 688 -ip 688
          1⤵
            PID:3588

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\ProgramData\BGDAAEHDHI.exe

            Filesize

            937KB

            MD5

            168c5908924803d268d26965c32a5620

            SHA1

            9e0e2dc9c7e931c4ee860c32d83711c433f7b1a3

            SHA256

            2fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449

            SHA512

            749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1

          • 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

          • memory/688-147-0x0000000000330000-0x000000000041F000-memory.dmp

            Filesize

            956KB

          • memory/1456-29-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-27-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-11-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-23-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-63-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-1-0x00000000003E0000-0x000000000095A000-memory.dmp

            Filesize

            5.5MB

          • memory/1456-70-0x0000000074570000-0x0000000074D20000-memory.dmp

            Filesize

            7.7MB

          • memory/1456-21-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-59-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-55-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-53-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-49-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-48-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-43-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-41-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-39-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-37-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-19-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-33-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-31-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-0-0x000000007457E000-0x000000007457F000-memory.dmp

            Filesize

            4KB

          • memory/1456-25-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-65-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-2-0x00000000053E0000-0x000000000547C000-memory.dmp

            Filesize

            624KB

          • memory/1456-35-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-3-0x0000000074570000-0x0000000074D20000-memory.dmp

            Filesize

            7.7MB

          • memory/1456-17-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-15-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-9-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-61-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-57-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-51-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-45-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-7-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-5-0x00000000053A0000-0x00000000053BC000-memory.dmp

            Filesize

            112KB

          • memory/1456-6-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-13-0x00000000053A0000-0x00000000053B5000-memory.dmp

            Filesize

            84KB

          • memory/1456-4-0x0000000005480000-0x0000000005564000-memory.dmp

            Filesize

            912KB

          • memory/2892-154-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/2892-150-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/3552-81-0x0000000000400000-0x0000000000648000-memory.dmp

            Filesize

            2.3MB

          • memory/3552-71-0x0000000000400000-0x0000000000648000-memory.dmp

            Filesize

            2.3MB

          • memory/3552-153-0x0000000000400000-0x0000000000648000-memory.dmp

            Filesize

            2.3MB

          • memory/3552-66-0x0000000000400000-0x0000000000648000-memory.dmp

            Filesize

            2.3MB

          • memory/3552-68-0x0000000000400000-0x0000000000648000-memory.dmp

            Filesize

            2.3MB