Analysis

  • max time kernel
    142s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-01-2024 01:37

General

  • Target

    692759203e392d71d9dee01161280ef1.dll

  • Size

    2.6MB

  • MD5

    692759203e392d71d9dee01161280ef1

  • SHA1

    dd9376cdcb27e27eafce10498630c75ca1b11432

  • SHA256

    3b12db2302d38fb3cb124b01f2f6bb81d2d14cc079e87406803e7883bc256a66

  • SHA512

    400a6dde11da33279d426345744481ee8a790a43b017a7d510222874d83ddd9014fe9a3abbe9b2b89e1c39e9da55663484ca4fbcaea7082303fa167e6d99633f

  • SSDEEP

    12288:gVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:FfP7fWsK5z9A+WGAW+V5SB6Ct4bnb

Malware Config

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Shellcode 1 IoCs

    Detects Dridex Payload shellcode injected in Explorer process.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\692759203e392d71d9dee01161280ef1.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:3188
  • C:\Windows\system32\SppExtComObj.Exe
    C:\Windows\system32\SppExtComObj.Exe
    1⤵
      PID:4040
    • C:\Users\Admin\AppData\Local\xtVAESF\SppExtComObj.Exe
      C:\Users\Admin\AppData\Local\xtVAESF\SppExtComObj.Exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      PID:776
    • C:\Windows\system32\OptionalFeatures.exe
      C:\Windows\system32\OptionalFeatures.exe
      1⤵
        PID:4468
      • C:\Users\Admin\AppData\Local\RWunwh\OptionalFeatures.exe
        C:\Users\Admin\AppData\Local\RWunwh\OptionalFeatures.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        PID:4300
      • C:\Windows\system32\BdeUISrv.exe
        C:\Windows\system32\BdeUISrv.exe
        1⤵
          PID:3516
        • C:\Users\Admin\AppData\Local\6CxXERmD\BdeUISrv.exe
          C:\Users\Admin\AppData\Local\6CxXERmD\BdeUISrv.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:4544

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\6CxXERmD\BdeUISrv.exe

          Filesize

          54KB

          MD5

          8595075667ff2c9a9f9e2eebc62d8f53

          SHA1

          c48b54e571f05d4e21d015bb3926c2129f19191a

          SHA256

          20b05c77f898be08737082e969b39f54fa39753c8c0a06142eb7ad5e0764a2db

          SHA512

          080dbcdd9234c07efe6cea4919ffa305fdc381ccebed9d1020dd6551b54e20e52387e62a344502fa4a85249defd0f9b506528b8dd34675bc9f51f664b8fc4d88

        • C:\Users\Admin\AppData\Local\6CxXERmD\WTSAPI32.dll

          Filesize

          576KB

          MD5

          f3ef1a8d6731c4d3b5f762f96d6c4673

          SHA1

          64dabc60b3e5a75d79c2769eefd25c96e97a717f

          SHA256

          9fffa4c1033fb274a396386d36566a258cc75e97c00d152933416df00166a028

          SHA512

          00f5a0439571c47fccb66a2ae27ba00f92d9099b0d8dd54e55000753c6ff36972c080527a8e98a42c67f2ac4eba3892cae07357381ef13b6f4d81cb10463d0f9

        • C:\Users\Admin\AppData\Local\6CxXERmD\WTSAPI32.dll

          Filesize

          2.6MB

          MD5

          d2715efb10697c36ac8de95ccdbf7c6c

          SHA1

          cd2ceaccd80c1fbb90101e5ca7b9ddca6bfff718

          SHA256

          696467c9b00ebd6d7be92fc868ee64e708302f0f11ee95d9814eb43190ea8535

          SHA512

          549c110f90632161b1890489457d245e71ab07945da442de881330b61299eae5cc5f21cf5d3e4c7035a8d28cb6d14e635ab1b3c2587f4e9102048b664cda9f38

        • C:\Users\Admin\AppData\Local\RWunwh\OptionalFeatures.exe

          Filesize

          110KB

          MD5

          d6cd8bef71458804dbc33b88ace56372

          SHA1

          a18b58445be2492c5d37abad69b5aa0d29416a60

          SHA256

          fa2e741416994f2c1bf9ef7a16b9c4dbf20c84267e3da91ae6f1ad75ee9f49b8

          SHA512

          1bed8af2cf99a7f3bb36a34f4a71c34787904bd072ecdc731fb7498290dcf4024b956fb8b6912ad050b74aa861f0b0349081b77088f72732bda5075413b1f83d

        • C:\Users\Admin\AppData\Local\RWunwh\appwiz.cpl

          Filesize

          2.6MB

          MD5

          80c338b4a53003088ce9a15382f8c572

          SHA1

          a74ec3f039125e7ddb3491f3df774ce84e954cdc

          SHA256

          b1d7255e06d3dc1049fd9bca497ccff2b75ab0118916bc4ce7353fc33c2a9a06

          SHA512

          ef3c10b1bda2256e76bfd672253db3ee0ae7826b3efe20856ae79d2ec27c7c17e90e184f2f9fbfa58ecde738450c740fb397a82256d992c41e9488415516bc80

        • C:\Users\Admin\AppData\Local\xtVAESF\ACTIVEDS.dll

          Filesize

          2.6MB

          MD5

          ad2142dd79759943be2189182cde50f7

          SHA1

          2b1303715b08fd3e693b60b76859039ebe358bd0

          SHA256

          0d134571e4a88855398ffc6c6e7a7db669b3a83b71a39a253f82da029520dd2d

          SHA512

          e1f22c42c9af6326d52a07a50898beed314a1fdab84979d6980849d14bf1231dea258774ca3891fed0505c0704e033cb48890da2d48536aaa51d10f609fd6df0

        • C:\Users\Admin\AppData\Local\xtVAESF\SppExtComObj.Exe

          Filesize

          559KB

          MD5

          728a78909aa69ca0e976e94482350700

          SHA1

          6508dfcbf37df25cae8ae68cf1fcd4b78084abb7

          SHA256

          2a6581576305771044f07ea0fef27f77859996dbf66c2017e938f90bfc1e010c

          SHA512

          22bf985e71afa58a1365cc733c0aa03dabd4b44e7c6a136eb5f9b870db14470201b4ef88a19fa3864af6c44e79e1a01d6f8806062d9d4861ba7dac77d82074f1

        • C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Btpzaqnqvnv.lnk

          Filesize

          996B

          MD5

          6344baf3f441ee7051241fb645775e29

          SHA1

          65a8e899db6ac33314718d0523b8a0476e93206c

          SHA256

          a415f9e751c3ab90511ca31e03a8992abe6dc122e7cfe950ddcfb54eb17d82f8

          SHA512

          adf658bbccc4c06676384466e1f5513988fb0d7116c5977fec49adc32bbf0b1e0d96b8f25f9f1d7fd4aed0284e625541baee0d10ee298ee4d9cd643b2e36d286

        • memory/776-72-0x00000229E44D0000-0x00000229E44D7000-memory.dmp

          Filesize

          28KB

        • memory/776-71-0x0000000140000000-0x000000014028E000-memory.dmp

          Filesize

          2.6MB

        • memory/776-77-0x0000000140000000-0x000000014028E000-memory.dmp

          Filesize

          2.6MB

        • memory/3188-19-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3188-1-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3188-0-0x000001795F910000-0x000001795F917000-memory.dmp

          Filesize

          28KB

        • memory/3464-28-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-36-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-14-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-15-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-16-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-17-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-18-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-20-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-21-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-22-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-23-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-25-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-24-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-26-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-12-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-29-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-30-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-27-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-31-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-32-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-33-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-34-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-35-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-13-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-37-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-38-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-39-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-40-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-41-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-42-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-43-0x0000000002960000-0x0000000002967000-memory.dmp

          Filesize

          28KB

        • memory/3464-11-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-6-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-10-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-50-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-53-0x00007FFB87C00000-0x00007FFB87C10000-memory.dmp

          Filesize

          64KB

        • memory/3464-62-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-60-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-4-0x00000000084A0000-0x00000000084A1000-memory.dmp

          Filesize

          4KB

        • memory/3464-7-0x00007FFB8782A000-0x00007FFB8782B000-memory.dmp

          Filesize

          4KB

        • memory/3464-9-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/3464-8-0x0000000140000000-0x000000014028D000-memory.dmp

          Filesize

          2.6MB

        • memory/4300-92-0x0000000140000000-0x000000014028E000-memory.dmp

          Filesize

          2.6MB

        • memory/4300-89-0x0000017795570000-0x0000017795577000-memory.dmp

          Filesize

          28KB

        • memory/4544-105-0x0000023736450000-0x0000023736457000-memory.dmp

          Filesize

          28KB