Analysis

  • max time kernel
    31s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2024 04:57

General

  • Target

    b40a7f8a82bf89961e247adec5d32389e68957c516713823c210475aca5d902c.dll

  • Size

    120KB

  • MD5

    071dcaab389f8a71cbb5eff4744229d4

  • SHA1

    15124fbe12d1f3c300dbeb85c991010b74d5f12b

  • SHA256

    b40a7f8a82bf89961e247adec5d32389e68957c516713823c210475aca5d902c

  • SHA512

    904df2b03a817ca771c40f0398f7fa57b2c75ba05bd8b85ae8cfa89ab2003a8821c0d7569ba12a1a6c29255ed3e51ad1d8be84f4cc6bed375efc7d91ec289408

  • SSDEEP

    1536:czCgMmcJ+dM4Ub8O6mhf7lbVnunb79GRmFfuqU+oNlUokkMFmZDDzZ:yxcaMODmt7FVulGRmBuqaUo+FWDZ

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 14 IoCs

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

  • UPX packed file 27 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 37 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1240
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1324
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1388
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\b40a7f8a82bf89961e247adec5d32389e68957c516713823c210475aca5d902c.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2260
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\b40a7f8a82bf89961e247adec5d32389e68957c516713823c210475aca5d902c.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:524
              • C:\Users\Admin\AppData\Local\Temp\f76e0ce.exe
                C:\Users\Admin\AppData\Local\Temp\f76e0ce.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:2532
              • C:\Users\Admin\AppData\Local\Temp\f76e35d.exe
                C:\Users\Admin\AppData\Local\Temp\f76e35d.exe
                4⤵
                • Executes dropped EXE
                PID:2164
              • C:\Users\Admin\AppData\Local\Temp\f7716ea.exe
                C:\Users\Admin\AppData\Local\Temp\f7716ea.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:1740
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1676

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            a8f18ee59320f269e77f0bc3374d91f0

            SHA1

            54ca53ca38e1577c9c58f603177b356f54570eee

            SHA256

            e82df958a846b25cfea7ebf5b4fba558db0c4b6703928d325add38df9fbd7418

            SHA512

            31bd1305349eaefec8d5dea0aa510dd341c253650b2e9c035ea421ec02c98c47f72546da4868fc7a2e1c20122b28e48976755dfcc02e77020b50783f1c05a4ed

          • \Users\Admin\AppData\Local\Temp\f76e0ce.exe

            Filesize

            97KB

            MD5

            7f54fb96504c45ed801f87d14dc4c3d4

            SHA1

            ea9febee4ead1281f92c967f43c3944ad4966c2e

            SHA256

            a954c5b6591ea11ed6bc9c85fca7bc8a42f54ecb6440c27485efca613ab64f7a

            SHA512

            aa4d59c79a2686282bafa87a914c41708e04f424f9f4891490eca7b9f8ddb25ba02263cb5a74164e3a6d0de2b70c9d21b0dfa53aea7073ec1f3b3b0cbabb1dcc

          • memory/524-35-0x0000000000210000-0x0000000000211000-memory.dmp

            Filesize

            4KB

          • memory/524-110-0x00000000009C0000-0x00000000009D2000-memory.dmp

            Filesize

            72KB

          • memory/524-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/524-6-0x00000000001B0000-0x00000000001C2000-memory.dmp

            Filesize

            72KB

          • memory/524-2-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/524-12-0x00000000001B0000-0x00000000001C2000-memory.dmp

            Filesize

            72KB

          • memory/524-34-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/524-0-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/524-113-0x00000000001B0000-0x00000000001B6000-memory.dmp

            Filesize

            24KB

          • memory/524-60-0x0000000000830000-0x0000000000842000-memory.dmp

            Filesize

            72KB

          • memory/524-3-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/524-37-0x0000000000210000-0x0000000000211000-memory.dmp

            Filesize

            4KB

          • memory/524-77-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/524-103-0x00000000009C0000-0x00000000009D2000-memory.dmp

            Filesize

            72KB

          • memory/524-58-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/524-61-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/1240-26-0x0000000001CA0000-0x0000000001CA2000-memory.dmp

            Filesize

            8KB

          • memory/1740-197-0x0000000000560000-0x000000000161A000-memory.dmp

            Filesize

            16.7MB

          • memory/1740-159-0x0000000000560000-0x000000000161A000-memory.dmp

            Filesize

            16.7MB

          • memory/1740-181-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/1740-180-0x0000000000270000-0x0000000000271000-memory.dmp

            Filesize

            4KB

          • memory/1740-217-0x0000000000560000-0x000000000161A000-memory.dmp

            Filesize

            16.7MB

          • memory/1740-216-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2164-153-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2164-63-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2164-126-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2164-91-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2164-93-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2532-64-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-66-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-68-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-67-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-70-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-71-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-72-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-73-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-65-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-76-0x00000000003D0000-0x00000000003D2000-memory.dmp

            Filesize

            8KB

          • memory/2532-78-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-24-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-51-0x00000000003D0000-0x00000000003D2000-memory.dmp

            Filesize

            8KB

          • memory/2532-94-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-96-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-98-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-19-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-21-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-23-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-18-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-149-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2532-154-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-59-0x00000000003D0000-0x00000000003D2000-memory.dmp

            Filesize

            8KB

          • memory/2532-20-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-17-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-44-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-43-0x00000000003E0000-0x00000000003E1000-memory.dmp

            Filesize

            4KB

          • memory/2532-22-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-25-0x0000000000980000-0x0000000001A3A000-memory.dmp

            Filesize

            16.7MB

          • memory/2532-14-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB