Analysis

  • max time kernel
    93s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2024 03:40

General

  • Target

    dd5e257eb0a796b74a3ec84cd250dd0694aca08e252fec0a49893903ebef8f15.dll

  • Size

    120KB

  • MD5

    ac26e789ad86af5c6a48e41673001456

  • SHA1

    51f4e8a19b0da8f3c02ac5e7b2ef8987b1920159

  • SHA256

    dd5e257eb0a796b74a3ec84cd250dd0694aca08e252fec0a49893903ebef8f15

  • SHA512

    aab4f4f44293801ac38ee1ec19f935a82a8aabc9ea6f94b6a19eba4f106fdc7c22fbc12d3a3146b47424adc1156c6dc300e8923f3b13c02733538bbf772d0eb2

  • SSDEEP

    3072:AQqkEMw3paTP1BrRYaknDa9iYVbPepJIwo:AWXwwTP52wVynIT

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 2 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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 31 IoCs
  • UPX dump on OEP (original entry point) 37 IoCs
  • Executes dropped EXE 4 IoCs
  • UPX packed file 31 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 14 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:768
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:776
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:316
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2680
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2700
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2900
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3608
                  • C:\Windows\system32\rundll32.exe
                    rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd5e257eb0a796b74a3ec84cd250dd0694aca08e252fec0a49893903ebef8f15.dll,#1
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:4280
                    • C:\Windows\SysWOW64\rundll32.exe
                      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd5e257eb0a796b74a3ec84cd250dd0694aca08e252fec0a49893903ebef8f15.dll,#1
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:5544
                      • C:\Users\Admin\AppData\Local\Temp\e573180.exe
                        C:\Users\Admin\AppData\Local\Temp\e573180.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 Program Files directory
                        • Drops file in Windows directory
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:1580
                      • C:\Users\Admin\AppData\Local\Temp\e5733f1.exe
                        C:\Users\Admin\AppData\Local\Temp\e5733f1.exe
                        4⤵
                        • Executes dropped EXE
                        PID:4232
                      • C:\Users\Admin\AppData\Local\Temp\e574cd8.exe
                        C:\Users\Admin\AppData\Local\Temp\e574cd8.exe
                        4⤵
                        • Executes dropped EXE
                        PID:5780
                      • C:\Users\Admin\AppData\Local\Temp\e574cf7.exe
                        C:\Users\Admin\AppData\Local\Temp\e574cf7.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
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:3264
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3744
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3940
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:4032
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:2784
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:2896
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4192
                            • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
                              "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
                              1⤵
                                PID:2960
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:1980
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                  1⤵
                                    PID:1544
                                  • C:\Windows\System32\RuntimeBroker.exe
                                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                                    1⤵
                                      PID:5140
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:5760

                                      Network

                                      MITRE ATT&CK Matrix ATT&CK v13

                                      Persistence

                                      Create or Modify System Process

                                      1
                                      T1543

                                      Windows Service

                                      1
                                      T1543.003

                                      Privilege Escalation

                                      Create or Modify System Process

                                      1
                                      T1543

                                      Windows Service

                                      1
                                      T1543.003

                                      Abuse Elevation Control Mechanism

                                      1
                                      T1548

                                      Bypass User Account Control

                                      1
                                      T1548.002

                                      Defense Evasion

                                      Modify Registry

                                      5
                                      T1112

                                      Abuse Elevation Control Mechanism

                                      1
                                      T1548

                                      Bypass User Account Control

                                      1
                                      T1548.002

                                      Impair Defenses

                                      3
                                      T1562

                                      Disable or Modify Tools

                                      3
                                      T1562.001

                                      Discovery

                                      System Information Discovery

                                      2
                                      T1082

                                      Query Registry

                                      1
                                      T1012

                                      Peripheral Device Discovery

                                      1
                                      T1120

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Temp\e573180.exe
                                        Filesize

                                        97KB

                                        MD5

                                        ae86b27ede346abe5560d6958adfdc99

                                        SHA1

                                        6750a6cf4e62f3ba02004694471c9dc192494ee3

                                        SHA256

                                        c9f3e7bf77e283a87e6ffd2c355c4a6e14346d15850318d4671c89f94bc81dcd

                                        SHA512

                                        4c3033d1fc124b3ebbaf29f73b9adbc6076873c6ecaa7c3017653befcff6b9a523e86ba71f462c0cda16b6e3b4049cf20ef22f254b3a4549d8bd0c13d294521f

                                      • C:\Windows\SYSTEM.INI
                                        Filesize

                                        257B

                                        MD5

                                        a5fd2c55988028957e7017b660bcdfa7

                                        SHA1

                                        25ef72731f8dd969b98a02339fab20158e5f78e0

                                        SHA256

                                        30becdcf2cfd0ceeed09b9eb376be3c0080ea26502a3d95cee910d1fc72cca15

                                        SHA512

                                        d782f6c20272db9541194f99505213cc514e4a7de14917fd2ee8b73fc2d0da843a7e1e5d740e855dc6eb82234f62d66c55d616b1db8e4e15e2f43d3121fe0cc8

                                      • memory/1580-76-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-73-0x00000000005E0000-0x00000000005E2000-memory.dmp
                                        Filesize

                                        8KB

                                      • memory/1580-8-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-9-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-55-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-5-0x0000000000400000-0x0000000000412000-memory.dmp
                                        Filesize

                                        72KB

                                      • memory/1580-21-0x00000000005E0000-0x00000000005E2000-memory.dmp
                                        Filesize

                                        8KB

                                      • memory/1580-110-0x0000000000400000-0x0000000000412000-memory.dmp
                                        Filesize

                                        72KB

                                      • memory/1580-18-0x0000000000740000-0x0000000000741000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/1580-13-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-91-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-89-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-22-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-30-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-31-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-32-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-33-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-34-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-35-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-36-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-37-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-38-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-87-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-41-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-85-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-83-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-39-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-81-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-6-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-58-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-61-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-79-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-74-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/1580-56-0x0000000000850000-0x000000000190A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/3264-53-0x0000000000400000-0x0000000000412000-memory.dmp
                                        Filesize

                                        72KB

                                      • memory/3264-159-0x0000000000400000-0x0000000000412000-memory.dmp
                                        Filesize

                                        72KB

                                      • memory/3264-72-0x00000000001E0000-0x00000000001E2000-memory.dmp
                                        Filesize

                                        8KB

                                      • memory/3264-117-0x0000000000B50000-0x0000000001C0A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/3264-71-0x00000000001F0000-0x00000000001F1000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/3264-160-0x0000000000B50000-0x0000000001C0A000-memory.dmp
                                        Filesize

                                        16.7MB

                                      • memory/4232-68-0x00000000001E0000-0x00000000001E2000-memory.dmp
                                        Filesize

                                        8KB

                                      • memory/4232-65-0x00000000001E0000-0x00000000001E2000-memory.dmp
                                        Filesize

                                        8KB

                                      • memory/4232-113-0x0000000000400000-0x0000000000412000-memory.dmp
                                        Filesize

                                        72KB

                                      • memory/4232-64-0x00000000001F0000-0x00000000001F1000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/4232-24-0x0000000000400000-0x0000000000412000-memory.dmp
                                        Filesize

                                        72KB

                                      • memory/5544-14-0x00000000015B0000-0x00000000015B2000-memory.dmp
                                        Filesize

                                        8KB

                                      • memory/5544-10-0x00000000015B0000-0x00000000015B2000-memory.dmp
                                        Filesize

                                        8KB

                                      • memory/5544-11-0x00000000015F0000-0x00000000015F1000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/5544-3-0x0000000010000000-0x0000000010020000-memory.dmp
                                        Filesize

                                        128KB

                                      • memory/5544-12-0x00000000015B0000-0x00000000015B2000-memory.dmp
                                        Filesize

                                        8KB

                                      • memory/5544-49-0x00000000015B0000-0x00000000015B2000-memory.dmp
                                        Filesize

                                        8KB

                                      • memory/5780-69-0x00000000001E0000-0x00000000001E2000-memory.dmp
                                        Filesize

                                        8KB

                                      • memory/5780-141-0x0000000000400000-0x0000000000412000-memory.dmp
                                        Filesize

                                        72KB

                                      • memory/5780-67-0x0000000000460000-0x0000000000461000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/5780-47-0x0000000000400000-0x0000000000412000-memory.dmp
                                        Filesize

                                        72KB