Resubmissions

06/01/2025, 12:00

250106-n6bpwawkdw10

06/01/2025, 11:52

250106-n1zvhswjet10

20/08/2024, 14:25

240820-rrk7js1blm10

17/08/2024, 19:28

240817-x6wvgsvgpk10

Analysis

  • max time kernel
    34s
  • max time network
    75s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    20/08/2024, 14:25

General

  • Target
    8b3d1dd675e2e030d63ef5ecd9fa05da46a577d9f3723e7b358e20a4f6892495.exe
  • Size 181KB
  • Sample240820-rrk7js1blm
  • SHA256 8b3d1dd675e2e030d63ef5ecd9fa05da46a577d9f3723e7b358e20a4f6892495
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vidar

Version
  • 10.8

Botnet
  • 9fecf283c2873768afb8beafb33a85e0

C2
  • https://steamcommunity.com/profiles/76561199761128941

  • https://t.me/iyigunl

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://interactiedovspm.shop/api

  • https://potentioallykeos.shop/api

  • https://charecteristicdxp.shop/api

  • https://cagedwifedsozm.shop/api

  • https://deicedosmzj.shop/api

  • https://southedhiscuso.shop/api

  • https://consciousourwi.shop/api

Signatures

  • Detect Vidar Stealer 14 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 2 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 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:1644
    • C:\ProgramData\FCFBFHIEBK.exe
      "C:\ProgramData\FCFBFHIEBK.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1192
      • 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:1480
    • C:\ProgramData\BFBGCFCFHC.exe
      "C:\ProgramData\BFBGCFCFHC.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2124
      • 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:2088
        • C:\ProgramData\KJEHJKJEBG.exe
          "C:\ProgramData\KJEHJKJEBG.exe"
          4⤵
            PID:1324
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              5⤵
                PID:3008
            • C:\ProgramData\FHJDBKJKFI.exe
              "C:\ProgramData\FHJDBKJKFI.exe"
              4⤵
                PID:904
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                  5⤵
                    PID:2576
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JJDGCGHCGHCB" & exit
                  4⤵
                    PID:1692
                    • C:\Windows\SysWOW64\timeout.exe
                      timeout /t 10
                      5⤵
                      • Delays execution with timeout.exe
                      PID:1060
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JDBGDHIIDAEB" & exit
                2⤵
                  PID:2676
                  • C:\Windows\SysWOW64\timeout.exe
                    timeout /t 10
                    3⤵
                    • Delays execution with timeout.exe
                    PID:872

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    HDBGHD

                    • Path C:\ProgramData\EBGCGHIDHCBF\HDBGHD
                    • Size 20KB
                    • SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
                    • MD5 SHA1 SHA512 SSDEEP

                    JDGCGD

                    • Path C:\ProgramData\EBGCGHIDHCBF\JDGCGD
                    • Size 46KB
                    • SHA256 522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9
                    • MD5 SHA1 SHA512 SSDEEP

                    FHCGCA

                    • Path C:\ProgramData\JJDGCGHCGHCB\FHCGCA
                    • Size 92KB
                    • SHA256 f9f7369811d1696668b6ebb61d921ec9a92890a95843134b4fa0496ad1370805
                    • MD5 SHA1 SHA512 SSDEEP

                    GIJDAF

                    • Path C:\ProgramData\JJDGCGHCGHCB\GIJDAF
                    • Size 6KB
                    • SHA256 5edd55bf43813b1e3a475964464a3f131f409e4e5ea13a149088410e50f47d69
                    • MD5 SHA1 SHA512 SSDEEP

                    softokn3.dll

                    • Path C:\ProgramData\softokn3.dll
                    • Size 251KB
                    • SHA256 74ebbac956e519e16923abdc5ab8912098a4f64e38ddcb2eae23969f306afe5a
                    • MD5 SHA1 SHA512 SSDEEP

                    vcruntime140.dll

                    • Path C:\ProgramData\vcruntime140.dll
                    • Size 78KB
                    • SHA256 8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825
                    • MD5 SHA1 SHA512 SSDEEP

                    EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619
                    • Size 471B
                    • SHA256 27c8a37a9e191790eecbf0ed10a342d371d62d38d69c6fc9eed34e077f89ebfc
                    • MD5 SHA1 SHA512

                    94308059B57B3142E455B38A6EB92015

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                    • Size 342B
                    • SHA256 e55132b6fa4a1362640640c3bf156038f4a108e26a33d36e4334d31dffa14958
                    • MD5 SHA1 SHA512

                    94308059B57B3142E455B38A6EB92015

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                    • Size 342B
                    • SHA256 77fd97e315db0ae579c28111f3003b800d5ec1276eb6e320d35ed50800b75d8f
                    • MD5 SHA1 SHA512

                    94308059B57B3142E455B38A6EB92015

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                    • Size 342B
                    • SHA256 7e2a5ee1928ddb974d262fb89f8b78317cd1fbc4c9f3f78e331f452ac2e5ab38
                    • MD5 SHA1 SHA512

                    EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619
                    • Size 400B
                    • SHA256 e63abdc275337409c3ae090f94df5c011c16acffbe9c3d47186bd59413f42f9c
                    • MD5 SHA1 SHA512

                    76561199761128941[1].htm

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R4VBOHSO\76561199761128941[1].htm
                    • Size 33KB
                    • SHA256 922824c1b53f965255895b93fb3bc54dbe8933885fc0d8a3b286edbc99821ed4
                    • MD5 SHA1 SHA512 SSDEEP

                    Cab9C61.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\Cab9C61.tmp
                    • Size 70KB
                    • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
                    • MD5 SHA1 SHA512 SSDEEP

                    Tar9C83.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\Tar9C83.tmp
                    • Size 181KB
                    • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
                    • MD5 SHA1 SHA512 SSDEEP

                    BFBGCFCFHC.exe

                    • Path \ProgramData\BFBGCFCFHC.exe
                    • Size 191KB
                    • SHA256 b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a
                    • MD5 SHA1 SHA512 SSDEEP

                    FCFBFHIEBK.exe

                    • Path \ProgramData\FCFBFHIEBK.exe
                    • Size 277KB
                    • SHA256 4898b9ca2adfdbf8369786f49ad6a0d8466439f5afd166bb57cded506a7f244f
                    • MD5 SHA1 SHA512 SSDEEP

                    mozglue.dll

                    • Path \ProgramData\mozglue.dll
                    • Size 593KB
                    • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
                    • MD5 SHA1 SHA512 SSDEEP

                    nss3.dll

                    • Path \ProgramData\nss3.dll
                    • Size 2.0MB
                    • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/904-1063-0x00000000002B0000-0x00000000002E4000-memory.dmp

                    memory/1192-463-0x0000000000310000-0x000000000035A000-memory.dmp

                    memory/1324-1013-0x0000000001010000-0x000000000105A000-memory.dmp

                    memory/1480-491-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/1480-485-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/1480-484-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/1480-493-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                    memory/1480-494-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/1480-495-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/1480-489-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/1480-487-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/1644-169-0x000000001E210000-0x000000001E46F000-memory.dmp

                    memory/2088-693-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-921-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-741-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-528-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-529-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-517-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-515-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-878-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-525-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-722-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-940-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-959-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-712-0x0000000020360000-0x00000000205BF000-memory.dmp

                    memory/2088-527-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                    memory/2088-674-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-531-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-519-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-521-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2088-523-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/2124-513-0x0000000001380000-0x00000000013B4000-memory.dmp