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Analysis

  • max time kernel
    96s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 05:08

General

  • Target

    file.exe

  • Size

    293KB

  • MD5

    b751220c1be48fcb6788c699b96256f9

  • SHA1

    503b64a2d3d276dfd676897d5f7bab42da52d5f6

  • SHA256

    f85d8599ca58d0d08292f94a6c51d6d8d21f050fef35862392106c549b12fba6

  • SHA512

    33e033619cb0171ed6cc58c1244a9f9e114b06a744978302936ed2cddc514f525b6209caccbff89f458dcd4819a85b53568a96ea854ced7da6bfd837cef6152e

  • SSDEEP

    3072:swHSeMPv5iD9XhwPCGsJfaIeq+5ubKjW4tCk9j4tTG60OvRQlLvh0D2a0nZ0iUYx:zHSeMPuXhwSm5Jy89j4pKPrI6uiVvTEO

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

  • Detect Vidar Stealer 20 IoCs
  • 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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 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 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 3 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 8 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
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3328
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:444
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
          PID:3088
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          2⤵
            PID:4580
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            2⤵
              PID:2676
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              2⤵
                PID:2672
              • 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:3344
                • C:\ProgramData\IDAEHCFHJJ.exe
                  "C:\ProgramData\IDAEHCFHJJ.exe"
                  3⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:3392
                  • 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:1068
                • C:\ProgramData\KEGCFCAKFH.exe
                  "C:\ProgramData\KEGCFCAKFH.exe"
                  3⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:1780
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                    4⤵
                      PID:1528
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                      4⤵
                        PID:4384
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                        4⤵
                          PID:3412
                        • 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
                          • Checks processor information in registry
                          • Suspicious behavior: EnumeratesProcesses
                          PID:2928
                      • C:\Windows\SysWOW64\cmd.exe
                        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JJDBAEHIJKJK" & exit
                        3⤵
                        • System Location Discovery: System Language Discovery
                        • Suspicious use of WriteProcessMemory
                        PID:4516
                        • C:\Windows\SysWOW64\timeout.exe
                          timeout /t 10
                          4⤵
                          • System Location Discovery: System Language Discovery
                          • Delays execution with timeout.exe
                          PID:4752

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • C:\ProgramData\IDAEHCFHJJ.exe

                    Filesize

                    355KB

                    MD5

                    731a25a9b1f2c31056f7bd75c71deac4

                    SHA1

                    ac95005a75add78f8226e553ff3bb32bcfeef1ea

                    SHA256

                    d0285d1ff85d7ef17ce9e3c0b185bd93624d6fde47a2cf0ec99a8cfd4a7afb0d

                    SHA512

                    efccfa84482c3a262c2efe9d5107a22a94efae352a46d01c0c677266835bb1d4b04a105ff7b94c5042640d40672576512ca06201260a5ee82257c7f524304fa4

                  • C:\ProgramData\IJKFIIIJJKJJ\AECFCA

                    Filesize

                    160KB

                    MD5

                    f310cf1ff562ae14449e0167a3e1fe46

                    SHA1

                    85c58afa9049467031c6c2b17f5c12ca73bb2788

                    SHA256

                    e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855

                    SHA512

                    1196371de08c964268c44103ccaed530bda6a145df98e0f480d8ee5ad58cb6fb33ca4c9195a52181fe864726dcf52e6a7a466d693af0cda43400a3a7ef125fad

                  • C:\ProgramData\KEGCFCAKFH.exe

                    Filesize

                    293KB

                    MD5

                    6d1999f1096cee3f06507e0d896d7c4a

                    SHA1

                    947cde63e799d23622468caecd0172a4ce8e8c17

                    SHA256

                    6f8b44c727d44c82461e3e33098a1d93517bd200c4489120914f34e22715309c

                    SHA512

                    eb46aa64facd4456eaad1b24ee158b9e7bd5426580caf1ca4d5cd24fe08127612b8fcb2e1cedd054daff85e315d3942fb75bc5959c89baadf832d70a8a0982b1

                  • 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\LocalLow\Microsoft\CryptnetUrlCache\Content\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

                    Filesize

                    2KB

                    MD5

                    912f27bcbbbdd339d73baf2ecec184e7

                    SHA1

                    de4c42adf7c06de811958807014887a4c0d41c95

                    SHA256

                    ac4301cf80e1320cc836f85d90d28221a50ec57e6129b195acf0cb00df5d18b2

                    SHA512

                    3315247d610e70893844af18d903d1010e0d9df7dc3dcaee2b83e4d52fd52910e2623cdcb5e33bc8e8253129914091e20a7a35d51b500fdf4eba2c48da83fcd8

                  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

                    Filesize

                    2KB

                    MD5

                    9541342916b0c5b0ee2f6062398b867f

                    SHA1

                    46fc51b5aa29f366ef96946c16cbe9b7f67c9392

                    SHA256

                    e6548a38d5a516be84c393b45ce4a1577e4bbd6bb40aad980237037fe0e5a740

                    SHA512

                    d763f9f0676bb94f8211aae463896cf1c545531c1c43ee9d60272427c3a7ea56dc332e8e4a08c570a87bc26908de326ef0f196da8ad79051f6cad2dfcd0579aa

                  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

                    Filesize

                    1KB

                    MD5

                    8515f6b60a6e8becf75da139b0767c36

                    SHA1

                    a926e7923af47636662c56e51ec8e0485d0e7b61

                    SHA256

                    42f8b46499f0f8fd94833336b4bdc1e908cb2b6b719d72229764bef52b80a6d6

                    SHA512

                    67450b06ebcc344b6eee9e5913a741161b1cf081cdb0d4ea5a6224735b2d490c46f1cb4783299265ec13212672af49de8b271b284951c9c229c700468ed322d2

                  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

                    Filesize

                    458B

                    MD5

                    a0cfff3fe4fe818c9c7717283571c1b7

                    SHA1

                    d9b83ec87b6708e6c900fe039a885de6172a2c45

                    SHA256

                    f552e7c9ac08a08762ab7479a268a972602bf40fd02fd8f1af69b0125c613f0e

                    SHA512

                    816fb736b40bc204169af19952c6eb450dd669476e21a2dfd62b3860ddda54a8fddb132e45c48904c3a26e3c64eeff1f47b1b9f2d7df84ce52dbf88c8237f9ec

                  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

                    Filesize

                    450B

                    MD5

                    3ca11cba0cb5d492583b4f06c0e873bf

                    SHA1

                    3c36c76dc3fdc34364abb517fb1b6b1d201e2039

                    SHA256

                    ea713139073f12a7720caf68a47fafd8ae366aeb9c94a7ef147d3bf00e80c80e

                    SHA512

                    48797cce40e1f294ee153eb400d4e6f6bccc6fea661e40e3e4ba83ea06261641e884f67a5382252cbf97bd7bc6c6c4c85afe5cf2e4c6d828a14c3d4a1a88e4ec

                  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

                    Filesize

                    458B

                    MD5

                    63c25c64bb1fbe4f56046d6fcc59eaeb

                    SHA1

                    2625a4f36a53bcdaf5f5f69bc0f87c61394936b8

                    SHA256

                    2dbb36d92581a0e83cb4ce1ff92ec779ab0d775b88c7e87f3fe453dbc2a9735a

                    SHA512

                    d8c6cf17f24f30a77ca3f0938a8f5771c8579a68094a47681ffa423e5c8950c879c4a1fe0331438f32c176555db1c8027a82d79e796c11055fbb0f3e2b940f4e

                  • memory/1068-120-0x0000000000400000-0x000000000045D000-memory.dmp

                    Filesize

                    372KB

                  • memory/1068-123-0x0000000000400000-0x000000000045D000-memory.dmp

                    Filesize

                    372KB

                  • memory/1068-117-0x0000000000400000-0x000000000045D000-memory.dmp

                    Filesize

                    372KB

                  • memory/1780-137-0x0000000000200000-0x000000000024A000-memory.dmp

                    Filesize

                    296KB

                  • memory/2928-154-0x0000000022830000-0x0000000022A8F000-memory.dmp

                    Filesize

                    2.4MB

                  • memory/2928-152-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/2928-153-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/2928-141-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/2928-143-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/2928-139-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/2928-168-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/2928-169-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3328-2-0x0000000075230000-0x00000000759E0000-memory.dmp

                    Filesize

                    7.7MB

                  • memory/3328-0-0x000000007523E000-0x000000007523F000-memory.dmp

                    Filesize

                    4KB

                  • memory/3328-1-0x0000000000AF0000-0x0000000000B3A000-memory.dmp

                    Filesize

                    296KB

                  • memory/3328-7-0x0000000075230000-0x00000000759E0000-memory.dmp

                    Filesize

                    7.7MB

                  • memory/3328-4-0x0000000075230000-0x00000000759E0000-memory.dmp

                    Filesize

                    7.7MB

                  • memory/3344-42-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-60-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-5-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-9-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-11-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-93-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-92-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-85-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-84-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-25-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-59-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-43-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3344-28-0x000000001FF90000-0x00000000201EF000-memory.dmp

                    Filesize

                    2.4MB

                  • memory/3344-26-0x0000000000400000-0x0000000000657000-memory.dmp

                    Filesize

                    2.3MB

                  • memory/3392-122-0x00000000727D0000-0x0000000072F80000-memory.dmp

                    Filesize

                    7.7MB

                  • memory/3392-113-0x00000000727DE000-0x00000000727DF000-memory.dmp

                    Filesize

                    4KB

                  • memory/3392-114-0x0000000000DF0000-0x0000000000E4A000-memory.dmp

                    Filesize

                    360KB

                  • memory/3392-115-0x00000000727D0000-0x0000000072F80000-memory.dmp

                    Filesize

                    7.7MB