Analysis

  • max time kernel
    40s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    01/08/2024, 22:36

General

  • Target

    4b405c22574517f903942744984e85e0240fe1b020e30ab94b3d3225ac7f5a58.exe

  • Size

    6.0MB

  • MD5

    2768d35cf6fa54b1db18e61842e61daf

  • SHA1

    940b98dcd682a0d087901c122a2860bc67f39fa4

  • SHA256

    4b405c22574517f903942744984e85e0240fe1b020e30ab94b3d3225ac7f5a58

  • SHA512

    3b231d8e01f42863dfe10e7190c7751fd7d548aef3b4d2c80a4819fff71e2cd46fd083aae7bb24f15ebf102d88d17f9d91d57112704bb7f3fca89af3d97ef0b7

  • SSDEEP

    98304:P3Fr4mzBPN//iM5KxPGEw3Np8c6C/h6qwolphehY:P3Fr4MBPN//iM5EPGEalzeh

Malware Config

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199747278259

https://t.me/armad2a

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 YaBrowser/24.6.0.1 Safari/537.36

Extracted

Family

lumma

C2

https://tenntysjuxmz.shop/api

Signatures

  • Detect Vidar Stealer 3 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.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 10 IoCs
  • Reads user/profile data of web browsers 2 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
  • 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 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 4 IoCs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b405c22574517f903942744984e85e0240fe1b020e30ab94b3d3225ac7f5a58.exe
    "C:\Users\Admin\AppData\Local\Temp\4b405c22574517f903942744984e85e0240fe1b020e30ab94b3d3225ac7f5a58.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:2832
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2808
        • C:\ProgramData\EHJDGHJDBF.exe
          "C:\ProgramData\EHJDGHJDBF.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Modifies system certificate store
          PID:1628
        • C:\ProgramData\BAKKEGCAAE.exe
          "C:\ProgramData\BAKKEGCAAE.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          PID:2016
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BKEHDGDGHCBG" & exit
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2080
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • System Location Discovery: System Language Discovery
            • Delays execution with timeout.exe
            PID:2804

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

      Filesize

      342B

      MD5

      56fa4e044e723c020bc87d3a4984f0c5

      SHA1

      d534d116d2ff0ac711ea4db641c9c92a91ddefe0

      SHA256

      81da3671d160211ad42c60d3eceafc7a480f7432c431b6185c70a83c1f422c88

      SHA512

      31e61a0cf4340dbcecc0074982903d01ef19dca0dd7d47dedb20f3d004326441c0febeeabbc0cad0cb7fb677b3a57644218f1f508d396aad60f579e3bdf963be

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\5J67VDZD\76561199747278259[1].htm

      Filesize

      33KB

      MD5

      f7e1fe8d3a6fdc2e0126666a1270fffb

      SHA1

      a2cf621d5345007ed0a7b7cdcb83ebdf865dcbc7

      SHA256

      daae171b021c15d6f3b16bd6d7fdb9a7548be02ed392621896d4a6f060da0e03

      SHA512

      34e39874098251ad13a530d43335e5a7c196062655f00313df2038b81b7c271821268cf0f746f8e7c09981b7f18498919ee43f0cd9b7d5bb94767e4d02c85930

    • C:\Users\Admin\AppData\Local\Temp\Cab9050.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • C:\Users\Admin\AppData\Local\Temp\Tar9062.tmp

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • \ProgramData\BAKKEGCAAE.exe

      Filesize

      4.7MB

      MD5

      cd2670554d158aadff36a84cd133a841

      SHA1

      b2087461f6c10af0503150850e84a8dc309afc48

      SHA256

      54b7c4e56ab1efc940f22df09a6afc597dc3216b3aa2d597e32e9e26c9af6131

      SHA512

      034f4d339f2c6509bf74147ec072552d4e3169cc3ed9dccbb666b0468c7d9e9e95a053b999c6f802a71f3ae529d6f177d6e76e88384a082a346c3e022a08266a

    • \ProgramData\EHJDGHJDBF.exe

      Filesize

      4.7MB

      MD5

      502ee0741d889207e462d29a9e1b0d23

      SHA1

      84f97522803326316f13fda1323422a95177a860

      SHA256

      4022245ab5c4db63803c3aecca8df306498a1c947c0c467c2b4ce5e80fb8db8c

      SHA512

      20db01beacf8d8542c9afdd02e30ba7597cc85a3c43218457f9435a627d9eec40fc6ed3a9de6fa0e94456316775d7e29b4bdd26135c6ed3b0804dfa364c2de79

    • \ProgramData\mozglue.dll

      Filesize

      593KB

      MD5

      c8fd9be83bc728cc04beffafc2907fe9

      SHA1

      95ab9f701e0024cedfbd312bcfe4e726744c4f2e

      SHA256

      ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

      SHA512

      fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

    • \ProgramData\nss3.dll

      Filesize

      2.0MB

      MD5

      1cc453cdf74f31e4d913ff9c10acdde2

      SHA1

      6e85eae544d6e965f15fa5c39700fa7202f3aafe

      SHA256

      ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

      SHA512

      dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

    • memory/2536-44-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-30-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-6-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-16-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-34-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-41-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-54-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-64-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-62-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-60-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-58-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-56-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-52-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-50-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-48-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-46-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-4-0x0000000000B70000-0x0000000000B8C000-memory.dmp

      Filesize

      112KB

    • memory/2536-42-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-38-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-36-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-32-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-5-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-28-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-26-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-24-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-22-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-20-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-18-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-14-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-12-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-10-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-8-0x0000000000B70000-0x0000000000B85000-memory.dmp

      Filesize

      84KB

    • memory/2536-3-0x00000000747A0000-0x0000000074E8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2536-2-0x0000000005170000-0x00000000052BE000-memory.dmp

      Filesize

      1.3MB

    • memory/2536-65-0x00000000747A0000-0x0000000074E8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2536-83-0x00000000747A0000-0x0000000074E8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2536-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

      Filesize

      4KB

    • memory/2536-1-0x0000000000390000-0x0000000000996000-memory.dmp

      Filesize

      6.0MB

    • memory/2808-66-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/2808-563-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/2808-647-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/2808-68-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/2808-82-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB