Analysis

  • max time kernel
    41s
  • max time network
    45s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/06/2023, 03:06

General

  • Target

    build.exe

  • Size

    7.1MB

  • MD5

    5cd90568bf2a538daf7bfc44b10dd62f

  • SHA1

    31a5b2fde42676bc48a4ffe6d5aaa944289bcb07

  • SHA256

    38c92127fdd9f81e44c55a6e0ec72c3c8f2d04d8ba18fcacb068e815027d7328

  • SHA512

    f3956fb48bfc2d0be13daf5281991a97cb3c77844f68232d994c30b94336d08575ea85159bd2fbdea35e2ac82928fdf73fd85cb790aee45c260980575bb38c5b

  • SSDEEP

    98304:GB2pC6XG4HNkq5UKPhc24Y1/QPldHVTgPNhV0ADXqQgpkWDRIZVMnu0jjD8ueJU:7cUG4raKu24YY7HVT4hV0AD6QgqKRgX

Malware Config

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 9 IoCs

    Detects Themida, an advanced Windows software protection system.

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\build.exe
    "C:\Users\Admin\AppData\Local\Temp\build.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:924

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\b40e4512-1e6d-45f7-ab3c-077e06661818\AgileDotNetRT.dll

          Filesize

          2.8MB

          MD5

          1e275530f75ec0222ad0a49117819936

          SHA1

          c469db9377442dc65d1c4c6cc5985b28cb1c26e2

          SHA256

          d8519a2a1f40baeb1ee2e6eb1aca27745e5dcab7c046d65b27246e24af57d2bb

          SHA512

          76af1a2193a3b4dc6adc31c9d160b368c6d1a6368af1e99065b53c01cd1c6a93533167a570e6ea68959eeb06b24664f182ad7eef5d7f1ecbfc4cd55e83a72061

        • C:\Users\Admin\AppData\Local\Temp\b40e4512-1e6d-45f7-ab3c-077e06661818\AgileDotNetRT.dll

          Filesize

          2.8MB

          MD5

          1e275530f75ec0222ad0a49117819936

          SHA1

          c469db9377442dc65d1c4c6cc5985b28cb1c26e2

          SHA256

          d8519a2a1f40baeb1ee2e6eb1aca27745e5dcab7c046d65b27246e24af57d2bb

          SHA512

          76af1a2193a3b4dc6adc31c9d160b368c6d1a6368af1e99065b53c01cd1c6a93533167a570e6ea68959eeb06b24664f182ad7eef5d7f1ecbfc4cd55e83a72061

        • C:\Users\Admin\AppData\Local\Temp\tmpFA69.tmp

          Filesize

          46KB

          MD5

          02d2c46697e3714e49f46b680b9a6b83

          SHA1

          84f98b56d49f01e9b6b76a4e21accf64fd319140

          SHA256

          522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

          SHA512

          60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

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

          Filesize

          92KB

          MD5

          4b92e3c4a1139598503c9cc15d2fa234

          SHA1

          19fbb79791259d91b4e80d7a5e73ecb53c47f613

          SHA256

          bb235273f1befffb33c931732d2a2ead6f2b7356eee66cfa2288a48e9b51eb56

          SHA512

          6129e7a17a2fb1056b62a4484220b7e35006aacdad7e5bcd4f74b43f8b9bf9ac535b43165af9ff1fb69d61f13fcb6a6a0879b78322b48dfb2dde1abe4877d6e8

        • C:\Users\Admin\AppData\Local\Temp\tmpFAF8.tmp

          Filesize

          48KB

          MD5

          349e6eb110e34a08924d92f6b334801d

          SHA1

          bdfb289daff51890cc71697b6322aa4b35ec9169

          SHA256

          c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

          SHA512

          2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

        • C:\Users\Admin\AppData\Local\Temp\tmpFB0E.tmp

          Filesize

          112KB

          MD5

          780853cddeaee8de70f28a4b255a600b

          SHA1

          ad7a5da33f7ad12946153c497e990720b09005ed

          SHA256

          1055ff62de3dea7645c732583242adf4164bdcfb9dd37d9b35bbb9510d59b0a3

          SHA512

          e422863112084bb8d11c682482e780cd63c2f20c8e3a93ed3b9efd1b04d53eb5d3c8081851ca89b74d66f3d9ab48eb5f6c74550484f46e7c6e460a8250c9b1d8

        • C:\Users\Admin\AppData\Local\Temp\tmpFB58.tmp

          Filesize

          96KB

          MD5

          d367ddfda80fdcf578726bc3b0bc3e3c

          SHA1

          23fcd5e4e0e5e296bee7e5224a8404ecd92cf671

          SHA256

          0b8607fdf72f3e651a2a8b0ac7be171b4cb44909d76bb8d6c47393b8ea3d84a0

          SHA512

          40e9239e3f084b4b981431817ca282feb986cf49227911bf3d68845baf2ee626b564c8fabe6e13b97e6eb214da1c02ca09a62bcf5e837900160cf479c104bf77

        • memory/924-146-0x00000000737F0000-0x0000000073879000-memory.dmp

          Filesize

          548KB

        • memory/924-133-0x00000000000A0000-0x00000000007BA000-memory.dmp

          Filesize

          7.1MB

        • memory/924-148-0x0000000005CE0000-0x0000000005CF2000-memory.dmp

          Filesize

          72KB

        • memory/924-149-0x0000000005D40000-0x0000000005D7C000-memory.dmp

          Filesize

          240KB

        • memory/924-150-0x0000000005FE0000-0x00000000060EA000-memory.dmp

          Filesize

          1.0MB

        • memory/924-151-0x00000000725D0000-0x0000000072D55000-memory.dmp

          Filesize

          7.5MB

        • memory/924-152-0x0000000005240000-0x0000000005250000-memory.dmp

          Filesize

          64KB

        • memory/924-153-0x0000000006DD0000-0x0000000006F92000-memory.dmp

          Filesize

          1.8MB

        • memory/924-154-0x00000000074D0000-0x00000000079FC000-memory.dmp

          Filesize

          5.2MB

        • memory/924-155-0x00000000073A0000-0x0000000007406000-memory.dmp

          Filesize

          408KB

        • memory/924-156-0x00000000080B0000-0x0000000008654000-memory.dmp

          Filesize

          5.6MB

        • memory/924-147-0x00000000061A0000-0x00000000067B8000-memory.dmp

          Filesize

          6.1MB

        • memory/924-145-0x00000000725D0000-0x0000000072D55000-memory.dmp

          Filesize

          7.5MB

        • memory/924-144-0x00000000725D0000-0x0000000072D55000-memory.dmp

          Filesize

          7.5MB

        • memory/924-142-0x00000000725D0000-0x0000000072D55000-memory.dmp

          Filesize

          7.5MB

        • memory/924-134-0x0000000005240000-0x0000000005250000-memory.dmp

          Filesize

          64KB

        • memory/924-308-0x0000000007BA0000-0x0000000007C32000-memory.dmp

          Filesize

          584KB

        • memory/924-309-0x0000000007C40000-0x0000000007CB6000-memory.dmp

          Filesize

          472KB

        • memory/924-310-0x0000000007F40000-0x0000000007F5E000-memory.dmp

          Filesize

          120KB

        • memory/924-311-0x00000000725D0000-0x0000000072D55000-memory.dmp

          Filesize

          7.5MB

        • memory/924-312-0x00000000725D0000-0x0000000072D55000-memory.dmp

          Filesize

          7.5MB

        • memory/924-314-0x00000000725D0000-0x0000000072D55000-memory.dmp

          Filesize

          7.5MB