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Resubmissions

06/01/2025, 12:00

250106-n6bpwawkdw 10

06/01/2025, 11:52

250106-n1zvhswjet 10

20/08/2024, 14:25

240820-rrk7js1blm 10

17/08/2024, 19:28

240817-x6wvgsvgpk 10

Analysis

  • max time kernel
    16s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    17/08/2024, 19:28

General

  • Target

    8b3d1dd675e2e030d63ef5ecd9fa05da46a577d9f3723e7b358e20a4f6892495.exe

  • Size

    181KB

  • MD5

    8604da617d2310a788d55a8a17158926

  • SHA1

    57be5e931ca21c501294dacd4744666adca8dc0a

  • SHA256

    8b3d1dd675e2e030d63ef5ecd9fa05da46a577d9f3723e7b358e20a4f6892495

  • SHA512

    0d1738c8ac0afe0de609744c14ee0deaf7217afa2292df166791508bb4146b1e377b8bec729f74cc077fd78f7fb8bc651552bb74d7614cf1db7cbefd1dad438c

  • SSDEEP

    3072:Pz2c0Rztm8NGdBXtfAzc1Gr/cMvOwUPfbldFw0t+Z0vhAVfDgZkCeJCsNIilreNO:PkseGXXtIg1GrtvOwUPfbldFw0t+Z0vT

Malware Config

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199751190313

https://t.me/pech0nk

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Extracted

Family

lumma

C2

https://consciousourwi.shop/api

https://potentioallykeos.shop/api

Signatures

  • Detect Vidar Stealer 10 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 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 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 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 5 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
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b3d1dd675e2e030d63ef5ecd9fa05da46a577d9f3723e7b358e20a4f6892495.exe
    "C:\Users\Admin\AppData\Local\Temp\8b3d1dd675e2e030d63ef5ecd9fa05da46a577d9f3723e7b358e20a4f6892495.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\ProgramData\JDGCGDBGCA.exe
      "C:\ProgramData\JDGCGDBGCA.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3028
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1256
    • C:\ProgramData\AAKJKJDGCG.exe
      "C:\ProgramData\AAKJKJDGCG.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2456
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2332
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BFBGCFCFHCFH" & exit
      2⤵
        PID:1600
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          3⤵
          • Delays execution with timeout.exe
          PID:2868

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

      Filesize

      471B

      MD5

      4334b36614a46b413c229dbb4b38423b

      SHA1

      dc1be03c7c33e5e0aefe0de499cb488f926986de

      SHA256

      a335228a73f4c69a5dc7622ab48e19e8a62d55d493a12646b889db072b4127a8

      SHA512

      156fe2af21243262aec38b697d8e2705adaf0a92e14fc5fbf15bedf25c54660146578a712a98bf0eb85b3b3e8301a7eb6e63216cb53b200987581d8282f44f6b

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

      Filesize

      342B

      MD5

      d898d48deb425be188fdbd54e85ba964

      SHA1

      2e34c31f5125243c394b8d66cccb2b3c20605bfc

      SHA256

      f7e8210d32e042216c4fae28b4d2002787794372007541cc832058c64df04ef8

      SHA512

      a908e3332f73ddb1f48cdbc0074d19bcd9981d26d8c92af38a6b3ff21385759efb5d46c142ff1030746d7460eed5d69cf4acf692060c678901f5be53aec32d3b

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

      Filesize

      400B

      MD5

      24b1fb2890f37785706b957aaec90ced

      SHA1

      e8e5b630e40e82976775f789c9a8fa456133ddb0

      SHA256

      53f3ca62e0ca2752028add4d62985939f0127faea47652db69e97fe477a5151b

      SHA512

      2296ac1140357530c53bb07438e407ba34ec96e8144516126892b057e5d0ac21c4f8f08e9b78cdd7753681802a9cc11fba3f9399641db9691f142615c9bf0e69

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Z2D3H3V6\76561199751190313[1].htm

      Filesize

      33KB

      MD5

      382e5028e840e7ad4bedd2f87c897267

      SHA1

      d60ed3250bbf073373ca87aec65e27318842c18a

      SHA256

      fb77c097855f88b484756da35421e487a5497ef95b311550355fe0c941664644

      SHA512

      f60255a8dfd8e9006469974809ff2816e600d57d313b10a2f62cf5c9287b0675786d0d37f3b944e6313c28e2d498251ad23adcdd41837a0e303eddaf17d2c890

    • C:\Users\Admin\AppData\Local\Temp\CabD3B5.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • C:\Users\Admin\AppData\Local\Temp\TarD3D8.tmp

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • \ProgramData\AAKJKJDGCG.exe

      Filesize

      276KB

      MD5

      a2fb40daa2aae2b589e7338057471282

      SHA1

      8b10a7281f347aa862f365b5bca41c87a8be472c

      SHA256

      409f89268972ae1bff240cc395cc31a3b3876b96f4d6e56fcc5fef74001fcf27

      SHA512

      48daa8f783b24451082c4c339e9f3f704037f89632b55ebf3b6d5b13a85f077785a8ff60f5d35eed8e03fc90543ec5df1b3a1e0dcdf60b7de5a0dc704ffac22a

    • \ProgramData\JDGCGDBGCA.exe

      Filesize

      190KB

      MD5

      fedb687ed23f77925b35623027f799bb

      SHA1

      7f27d0290ecc2c81bf2b2d0fa1026f54fd687c81

      SHA256

      325396d5ffca8546730b9a56c2d0ed99238d48b5e1c3c49e7d027505ea13b8d1

      SHA512

      6d1fa39560f4d7ca57905bc57d615acf96b1ef69ca2a4d7c0353278e8d4466298ed87f514463c49d671cb0e3b6a269a78636a10a1e463dba5c83fe067dc5df18

    • \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/1256-449-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-442-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-436-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-447-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-446-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1256-444-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-440-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-451-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-736-0x000000001DB00000-0x000000001DD5F000-memory.dmp

      Filesize

      2.4MB

    • memory/1256-717-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-698-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-439-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-434-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-746-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1256-765-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/2332-493-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2332-472-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2332-474-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2332-476-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2332-478-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2332-480-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2332-482-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2332-483-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2456-484-0x00000000023F0000-0x00000000043F0000-memory.dmp

      Filesize

      32.0MB

    • memory/2456-469-0x00000000008E0000-0x000000000092C000-memory.dmp

      Filesize

      304KB

    • memory/3028-422-0x0000000000AE0000-0x0000000000B16000-memory.dmp

      Filesize

      216KB

    • memory/3048-174-0x0000000035110000-0x000000003536F000-memory.dmp

      Filesize

      2.4MB