Analysis

  • max time kernel
    69s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21/09/2024, 08:02

General

  • Target

    4f3fd58862b0978175820ae932afba6aca38155d1c50084cf42dd372a91a384eN.dll

  • Size

    120KB

  • MD5

    a96e7caaf7ee932160b24a0d0a8fffd0

  • SHA1

    73743f7fb7ccacdbf25bc70de1154534785690d2

  • SHA256

    4f3fd58862b0978175820ae932afba6aca38155d1c50084cf42dd372a91a384e

  • SHA512

    ca50de0897395f41b000ad362a334a9dcb78a8f2f36b092d4e72f6bb3e3bc570958f084294cb4c6ac3f0819befc9b7d0e37021db61c879fd80853ea2ba02d236

  • SSDEEP

    3072:Jj7IZXf8g6fk5KLs0YKBN1wkzQyl6L/qwr:tIZES5P0YovQJ/rr

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

Signatures

  • Modifies firewall policy service 3 TTPs 6 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 25 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 17 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1104
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1168
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1200
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\4f3fd58862b0978175820ae932afba6aca38155d1c50084cf42dd372a91a384eN.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3048
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\4f3fd58862b0978175820ae932afba6aca38155d1c50084cf42dd372a91a384eN.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2644
              • C:\Users\Admin\AppData\Local\Temp\f76eccf.exe
                C:\Users\Admin\AppData\Local\Temp\f76eccf.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • Windows security modification
                • Checks whether UAC is enabled
                • Enumerates connected drives
                • Drops file in Windows directory
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2700
              • C:\Users\Admin\AppData\Local\Temp\f76ee84.exe
                C:\Users\Admin\AppData\Local\Temp\f76ee84.exe
                4⤵
                • Executes dropped EXE
                PID:2976
              • C:\Users\Admin\AppData\Local\Temp\f770898.exe
                C:\Users\Admin\AppData\Local\Temp\f770898.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • Windows security modification
                • Checks whether UAC is enabled
                • Enumerates connected drives
                • Drops file in Windows directory
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2788
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1860

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Windows\SYSTEM.INI

                  Filesize

                  256B

                  MD5

                  f09a32a15c5bc644418f0442b6fb0555

                  SHA1

                  591b6a68281ad0927b075a0aada1a8df059059f5

                  SHA256

                  32389166f159502fed876f59e8cbdfaf7290ad08fcc5e7ccd76d2750158a0414

                  SHA512

                  2da7a56e23f24046e8008811dd01ab0d3dc2dbf886d643620cd0bcfd66f0238c34282ab0b52c43b0d1a9462fb07cfe8af4496af3c226e0bd04986a0525a67f9f

                • \Users\Admin\AppData\Local\Temp\f76eccf.exe

                  Filesize

                  97KB

                  MD5

                  0cfc8c54517b4ad074d3f29d8aaa2216

                  SHA1

                  8a2ab2850763ce218f80e8aa03ea938af7fc1c0b

                  SHA256

                  a0503158ef40226c98555067d67757c26b20ee78135425cb4ea1e062f0d1a7e3

                  SHA512

                  f1b2ac5b4c6439dc0f585a0ca1ad39699ea6f3b26fe76a36565894e088f3d8ee745b469021f708322762cc59deefa879d18265c4ad25092c9a744aa6cc800444

                • memory/1104-25-0x0000000000320000-0x0000000000322000-memory.dmp

                  Filesize

                  8KB

                • memory/2644-84-0x00000000001F0000-0x0000000000202000-memory.dmp

                  Filesize

                  72KB

                • memory/2644-1-0x0000000010000000-0x0000000010020000-memory.dmp

                  Filesize

                  128KB

                • memory/2644-0-0x0000000010000000-0x0000000010020000-memory.dmp

                  Filesize

                  128KB

                • memory/2644-12-0x0000000000190000-0x00000000001A2000-memory.dmp

                  Filesize

                  72KB

                • memory/2644-80-0x00000000001B0000-0x00000000001B2000-memory.dmp

                  Filesize

                  8KB

                • memory/2644-42-0x00000000001C0000-0x00000000001C1000-memory.dmp

                  Filesize

                  4KB

                • memory/2644-73-0x00000000001F0000-0x0000000000202000-memory.dmp

                  Filesize

                  72KB

                • memory/2644-3-0x0000000010000000-0x0000000010020000-memory.dmp

                  Filesize

                  128KB

                • memory/2644-2-0x0000000010000000-0x0000000010020000-memory.dmp

                  Filesize

                  128KB

                • memory/2644-32-0x00000000001B0000-0x00000000001B2000-memory.dmp

                  Filesize

                  8KB

                • memory/2644-57-0x00000000001B0000-0x00000000001B2000-memory.dmp

                  Filesize

                  8KB

                • memory/2644-33-0x00000000001C0000-0x00000000001C1000-memory.dmp

                  Filesize

                  4KB

                • memory/2644-60-0x00000000001B0000-0x00000000001B2000-memory.dmp

                  Filesize

                  8KB

                • memory/2644-59-0x00000000001D0000-0x00000000001E2000-memory.dmp

                  Filesize

                  72KB

                • memory/2700-64-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-19-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-20-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-18-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-44-0x00000000002A0000-0x00000000002A1000-memory.dmp

                  Filesize

                  4KB

                • memory/2700-58-0x0000000000290000-0x0000000000292000-memory.dmp

                  Filesize

                  8KB

                • memory/2700-13-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2700-50-0x0000000000290000-0x0000000000292000-memory.dmp

                  Filesize

                  8KB

                • memory/2700-16-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-24-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-21-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-17-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-63-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-65-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-67-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-66-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-69-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-70-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-22-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-23-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-14-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-77-0x0000000000290000-0x0000000000292000-memory.dmp

                  Filesize

                  8KB

                • memory/2700-86-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-88-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-90-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-151-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-150-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2700-108-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2700-107-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2788-103-0x00000000003F0000-0x00000000003F1000-memory.dmp

                  Filesize

                  4KB

                • memory/2788-106-0x00000000003E0000-0x00000000003E2000-memory.dmp

                  Filesize

                  8KB

                • memory/2788-104-0x00000000003E0000-0x00000000003E2000-memory.dmp

                  Filesize

                  8KB

                • memory/2788-164-0x0000000000910000-0x00000000019CA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2788-208-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2788-207-0x0000000000910000-0x00000000019CA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2976-127-0x00000000003E0000-0x00000000003E2000-memory.dmp

                  Filesize

                  8KB

                • memory/2976-99-0x00000000003F0000-0x00000000003F1000-memory.dmp

                  Filesize

                  4KB

                • memory/2976-62-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2976-180-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB