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Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/12/2024, 06:00

General

  • Target

    b435d7d652275220bcab045c38dba268fae2d8b9745a76a9c24f167679ac7e66.dll

  • Size

    120KB

  • MD5

    eb06ec5bbd7fe7d8029157af008eda5e

  • SHA1

    5129d5ca0b4302383eb2423d3e8c92843ef75886

  • SHA256

    b435d7d652275220bcab045c38dba268fae2d8b9745a76a9c24f167679ac7e66

  • SHA512

    c02c7ebaa65ef7f0ac0dc5f405092af8ecbfcfb9e332783f042a7ce91af2fe9774c7acb0b5270bb1d3cf9259fd87afed00619a44d0938e80fa2058147a3d2622

  • SSDEEP

    3072:X28UYZ6+Zh4gRzozufNKXVHvbXSJWsq8N:X28z6ArEzMgXVHvbC1q8

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.

  • Sality family
  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • 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.

  • UPX packed file 24 IoCs

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

  • 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 46 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1108
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1172
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1216
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\b435d7d652275220bcab045c38dba268fae2d8b9745a76a9c24f167679ac7e66.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2540
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\b435d7d652275220bcab045c38dba268fae2d8b9745a76a9c24f167679ac7e66.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1940
              • C:\Users\Admin\AppData\Local\Temp\f76cf12.exe
                C:\Users\Admin\AppData\Local\Temp\f76cf12.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:2380
              • C:\Users\Admin\AppData\Local\Temp\f76d0e6.exe
                C:\Users\Admin\AppData\Local\Temp\f76d0e6.exe
                4⤵
                • Executes dropped EXE
                PID:2780
              • C:\Users\Admin\AppData\Local\Temp\f76ed8a.exe
                C:\Users\Admin\AppData\Local\Temp\f76ed8a.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:2680
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1608

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            ce8607c78b7e11a371f916a311fdb2af

            SHA1

            b4229cb1346863d1222b14e20f76ff2c712bb29f

            SHA256

            d4c1c8ad3e556788ef497d9bc68a7d1adc465e0b3547dd46dfd2fc51273ff32c

            SHA512

            9ee5eae0335074e71d2b87486610a905ac871c1cada6833fcd59d2e891fc4628ad2f48145f4b4ac54733bfed9f13424877ec0d8fca9eb08f94c81103a4cf51e1

          • \Users\Admin\AppData\Local\Temp\f76cf12.exe

            Filesize

            97KB

            MD5

            f6e79b514871113de167aff0739c9fb4

            SHA1

            5f8eac3ab6a2bf250db2ee0ea0058e9cdeb43611

            SHA256

            8d13c7d78d0c54359fe70a4649f817d8e880af43515460120c4308e5d447d6ef

            SHA512

            a9e2ba8d25ea1354fab0a9a33aa1e6984a6762fe1a68f624ad2c62f22db2db961cfcb63db5f6c9b0bd3b82c113efdbc05f3e8abbc2b5c1059277cb96a3ba17bd

          • memory/1108-31-0x0000000001F90000-0x0000000001F92000-memory.dmp

            Filesize

            8KB

          • memory/1940-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/1940-2-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/1940-12-0x00000000001B0000-0x00000000001C2000-memory.dmp

            Filesize

            72KB

          • memory/1940-9-0x00000000001B0000-0x00000000001C2000-memory.dmp

            Filesize

            72KB

          • memory/1940-3-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/1940-84-0x00000000001B0000-0x00000000001B2000-memory.dmp

            Filesize

            8KB

          • memory/1940-0-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/1940-39-0x00000000001E0000-0x00000000001E2000-memory.dmp

            Filesize

            8KB

          • memory/1940-40-0x0000000000270000-0x0000000000271000-memory.dmp

            Filesize

            4KB

          • memory/1940-58-0x00000000001E0000-0x00000000001E2000-memory.dmp

            Filesize

            8KB

          • memory/1940-48-0x0000000000270000-0x0000000000271000-memory.dmp

            Filesize

            4KB

          • memory/1940-61-0x00000000001E0000-0x00000000001E2000-memory.dmp

            Filesize

            8KB

          • memory/1940-60-0x00000000002E0000-0x00000000002F2000-memory.dmp

            Filesize

            72KB

          • memory/2380-17-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-72-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-24-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-49-0x00000000005C0000-0x00000000005C1000-memory.dmp

            Filesize

            4KB

          • memory/2380-51-0x00000000005B0000-0x00000000005B2000-memory.dmp

            Filesize

            8KB

          • memory/2380-25-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-18-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-23-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-22-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-20-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-16-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-63-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-64-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-65-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-66-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-67-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-69-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-70-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-71-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-59-0x00000000005B0000-0x00000000005B2000-memory.dmp

            Filesize

            8KB

          • memory/2380-19-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-14-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-88-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-89-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-160-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2380-159-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2680-176-0x0000000000A80000-0x0000000001B3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2680-109-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2680-137-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2680-107-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2680-85-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2680-106-0x00000000003B0000-0x00000000003B1000-memory.dmp

            Filesize

            4KB

          • memory/2680-217-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2680-216-0x0000000000A80000-0x0000000001B3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2780-108-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2780-110-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2780-138-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2780-101-0x0000000000370000-0x0000000000371000-memory.dmp

            Filesize

            4KB

          • memory/2780-189-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB