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Analysis

  • max time kernel
    149s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    17/07/2024, 06:49

General

  • Target

    3dffdf9e09ce072d12ff2e1a69fe7aaef98a2bb4728ca08f164be06408acdd2d.dll

  • Size

    824KB

  • MD5

    6651d9c2fbf38bce55c461d94c2cf433

  • SHA1

    133be7fe7e9f7f580df12bccb7f7ae14d1c26fc9

  • SHA256

    3dffdf9e09ce072d12ff2e1a69fe7aaef98a2bb4728ca08f164be06408acdd2d

  • SHA512

    01f284c09ac85fe1dbc2415fed87c48a4b61f5dbadb7ff17cfbe628f1d99202bca9cdabbc413c7c3c6cae87cb0adc0c6f6cd5e0f7182016685b3b61af1630416

  • SSDEEP

    12288:dBim9Tnts08FbKuPcA8NAc1l/XkGaZKoRQIpRX2/0Ak2ng/Zi66wNdufAdN:f/nts0Q9K/0ooRQIxAk2wi0N/

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.

  • Dridex payload 11 IoCs

    Detects Dridex x64 core DLL in memory.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 7 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 WriteProcessMemory 18 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\3dffdf9e09ce072d12ff2e1a69fe7aaef98a2bb4728ca08f164be06408acdd2d.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:1756
  • C:\Windows\system32\rekeywiz.exe
    C:\Windows\system32\rekeywiz.exe
    1⤵
      PID:2780
    • C:\Users\Admin\AppData\Local\3KfLYW\rekeywiz.exe
      C:\Users\Admin\AppData\Local\3KfLYW\rekeywiz.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      PID:2612
    • C:\Windows\system32\raserver.exe
      C:\Windows\system32\raserver.exe
      1⤵
        PID:1680
      • C:\Users\Admin\AppData\Local\IJICFO\raserver.exe
        C:\Users\Admin\AppData\Local\IJICFO\raserver.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        PID:1972
      • C:\Windows\system32\mspaint.exe
        C:\Windows\system32\mspaint.exe
        1⤵
          PID:2948
        • C:\Users\Admin\AppData\Local\12d1jd\mspaint.exe
          C:\Users\Admin\AppData\Local\12d1jd\mspaint.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:2640

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\12d1jd\VERSION.dll

          Filesize

          828KB

          MD5

          082d2e35a838816c5f4f5b9f0e813f44

          SHA1

          3bf849cdddbfe2edb5588818ac60700a713e48c7

          SHA256

          4f65538894d0c00002dfb15692676938d4e072e01c0c1ea6c887fc7d0da7d652

          SHA512

          4167472a54080169730a5cb3ccd8bb2a4e00dc33abe7a68e62e12d15f77a6a23b8fdd2bf282962bd12aed539500373bac966cdb10d9b94cf35ffdcaf6d55507f

        • C:\Users\Admin\AppData\Local\3KfLYW\rekeywiz.exe

          Filesize

          67KB

          MD5

          767c75767b00ccfd41a547bb7b2adfff

          SHA1

          91890853a5476def402910e6507417d400c0d3cb

          SHA256

          bd70e504871a2ac1c883d19b87970c8d1b8b251c784bf777ba77ed764f5f2395

          SHA512

          f096043452a1aa213a5e4d62638de3ee4b0b3ad3d12b7ee0372d8c79e00e2e13b4fd0ebc4206bbdb5124bed292dd5b30ef1641288046ef835f89c332985154f9

        • C:\Users\Admin\AppData\Local\3KfLYW\slc.dll

          Filesize

          828KB

          MD5

          d9cf7e4fd97f7c27b97c504ad0a890e6

          SHA1

          dc2d33e08b1fa5351383dc032dcdfef6594a70d7

          SHA256

          689c70433f69ad587605e325127bf8fbd2d8fd75c2d3bdcb5cd772ba18123829

          SHA512

          12ff2aa736b5ea23839b03d6bc099b17a0d43359bf71430e57c1f12d0253b046220c15099ca71bb8daf09b1410eafbfd65c1358b2ef6d87c1780903dcfacad56

        • C:\Users\Admin\AppData\Local\IJICFO\WTSAPI32.dll

          Filesize

          828KB

          MD5

          41d476e55526a079a2fee5936ee3b4c1

          SHA1

          6b102bf6edbb87a5a83d9f60d08313b890ae1b17

          SHA256

          44d7b6685c6151315373a96c66f51837f1f351a6008c224224705f3d6b680e4b

          SHA512

          e2e0228fd22e37f916674b0782609596dd3154644442353c64ca520bb3cc464d673c3a3c1e0fa781f9ae6d82185217a6face5d2c029263cab353f383c91036d8

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

          Filesize

          1KB

          MD5

          d1335fa3e50e343af1fe4f71655b447c

          SHA1

          81a766ce8ba5850c13392c5981480f02cc69d4bd

          SHA256

          5b08d38f31d8537909a9b451637a55767f0a7d9c30fea1c9f5e0b9d559fe35ca

          SHA512

          c77b16bb1f0ef0b4a2b702e799351aa9e299543cfc060f8a5b67caec26ad75dbbc19ada8abcd95896e0f33a99b95c5b9931f37b0036eb50592a9b15cb12265f5

        • \Users\Admin\AppData\Local\12d1jd\mspaint.exe

          Filesize

          6.4MB

          MD5

          458f4590f80563eb2a0a72709bfc2bd9

          SHA1

          3f97dc3bd1467c710c6a8d26b97bb6cf47deb4c6

          SHA256

          ff923c051ae380bf30d749ebe9cf310ccab6572d84eb81b76fb1012bcbdf557f

          SHA512

          e34500658dbe105a704fff6988b75d13aa9931adfd585b8ce1f023c61abd573d58067ee1f43e80076729ba99c9a00c17eb8cfcfac9c3d271d76bd251ccab1681

        • \Users\Admin\AppData\Local\IJICFO\raserver.exe

          Filesize

          123KB

          MD5

          cd0bc0b6b8d219808aea3ecd4e889b19

          SHA1

          9f8f4071ce2484008e36fdfd963378f4ebad703f

          SHA256

          16abc530c0367df1ad631f09e14c565cf99561949aa14acc533cd54bf8a5e22c

          SHA512

          84291ea3fafb38ef96817d5fe4a972475ef8ea24a4353568029e892fa8e15cf8e8f6ef4ff567813cd3b38092f0db4577d9dccb22be755eebdd4f77e623dc80ac

        • memory/1420-26-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-13-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-29-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-28-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-27-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-3-0x0000000076DD6000-0x0000000076DD7000-memory.dmp

          Filesize

          4KB

        • memory/1420-25-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-24-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-23-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-22-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-21-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-20-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-19-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-18-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-17-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-40-0x0000000077070000-0x0000000077072000-memory.dmp

          Filesize

          8KB

        • memory/1420-50-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-49-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-39-0x0000000077040000-0x0000000077042000-memory.dmp

          Filesize

          8KB

        • memory/1420-16-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-14-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-30-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-12-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-11-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-10-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-9-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-8-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-7-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-4-0x00000000024F0000-0x00000000024F1000-memory.dmp

          Filesize

          4KB

        • memory/1420-38-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-37-0x00000000024D0000-0x00000000024D7000-memory.dmp

          Filesize

          28KB

        • memory/1420-93-0x0000000076DD6000-0x0000000076DD7000-memory.dmp

          Filesize

          4KB

        • memory/1420-6-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1420-15-0x0000000140000000-0x00000001400CE000-memory.dmp

          Filesize

          824KB

        • memory/1756-58-0x000007FEF72A0000-0x000007FEF736E000-memory.dmp

          Filesize

          824KB

        • memory/1756-0-0x000007FEF72A0000-0x000007FEF736E000-memory.dmp

          Filesize

          824KB

        • memory/1756-2-0x0000000000120000-0x0000000000127000-memory.dmp

          Filesize

          28KB

        • memory/1972-83-0x000007FEFA5F0000-0x000007FEFA6BF000-memory.dmp

          Filesize

          828KB

        • memory/1972-85-0x0000000000280000-0x0000000000287000-memory.dmp

          Filesize

          28KB

        • memory/1972-88-0x000007FEFA5F0000-0x000007FEFA6BF000-memory.dmp

          Filesize

          828KB

        • memory/2612-71-0x000007FEF7150000-0x000007FEF721F000-memory.dmp

          Filesize

          828KB

        • memory/2612-68-0x00000000001F0000-0x00000000001F7000-memory.dmp

          Filesize

          28KB

        • memory/2612-66-0x000007FEF7150000-0x000007FEF721F000-memory.dmp

          Filesize

          828KB

        • memory/2640-104-0x000007FEFA5F0000-0x000007FEFA6BF000-memory.dmp

          Filesize

          828KB