Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    11-06-2024 00:19

General

  • Target

    88a865338a4e207e295287073aac691a9889bef916171ff4783dce329e831716.dll

  • Size

    120KB

  • MD5

    790a33c41eac8a357635db21eec847fb

  • SHA1

    a1e75f3a6c158b231c1c0103265f208767fe01bc

  • SHA256

    88a865338a4e207e295287073aac691a9889bef916171ff4783dce329e831716

  • SHA512

    dcbc7f1986ff4661593d751a612877e953e13f4fa310eb0da07d423fce8ad88c0c33c01743c2b82ac452322841b389f363e6189cccb240b126bba5a13415399e

  • SSDEEP

    3072:MmL+vcHn4cQZaQ8fOverlUZz3ISMTAZg4lO4FB:QcBQt8fO8UZz3RMTAZg404/

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 3 IoCs
  • Sality

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

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 21 IoCs
  • UPX dump on OEP (original entry point) 25 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 21 IoCs

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

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 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 Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1104
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1184
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1208
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\88a865338a4e207e295287073aac691a9889bef916171ff4783dce329e831716.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1284
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\88a865338a4e207e295287073aac691a9889bef916171ff4783dce329e831716.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1752
              • C:\Users\Admin\AppData\Local\Temp\f768f54.exe
                C:\Users\Admin\AppData\Local\Temp\f768f54.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 AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2984
              • C:\Users\Admin\AppData\Local\Temp\f7692ed.exe
                C:\Users\Admin\AppData\Local\Temp\f7692ed.exe
                4⤵
                • Executes dropped EXE
                PID:2440
              • C:\Users\Admin\AppData\Local\Temp\f76a94a.exe
                C:\Users\Admin\AppData\Local\Temp\f76a94a.exe
                4⤵
                • Executes dropped EXE
                PID:564
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:2172

          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

          • \Users\Admin\AppData\Local\Temp\f768f54.exe
            Filesize

            97KB

            MD5

            581792bfeaaaf2aae9bfc6d34194e86a

            SHA1

            ec92410c3e59ad5606105a905510dca29eb36173

            SHA256

            1d7bcfbb35be5304d7d878847086b35ca7cdd0e264ac070ebe7e350457ea0e95

            SHA512

            8efb5116a51b71f5e40087d1d2b1bbd44247b656a5bac58d3b69f94068c5f81e17e6887ea61428cdefc97ec92af869ca13676b0b40d735e39c9fffcbb30b2b29

          • memory/564-104-0x0000000000270000-0x0000000000271000-memory.dmp
            Filesize

            4KB

          • memory/564-107-0x0000000000260000-0x0000000000262000-memory.dmp
            Filesize

            8KB

          • memory/564-159-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/1104-29-0x0000000000220000-0x0000000000222000-memory.dmp
            Filesize

            8KB

          • memory/1752-10-0x0000000000190000-0x00000000001A2000-memory.dmp
            Filesize

            72KB

          • memory/1752-49-0x00000000001C0000-0x00000000001C1000-memory.dmp
            Filesize

            4KB

          • memory/1752-79-0x00000000001B0000-0x00000000001B2000-memory.dmp
            Filesize

            8KB

          • memory/1752-40-0x00000000001C0000-0x00000000001C1000-memory.dmp
            Filesize

            4KB

          • memory/1752-39-0x00000000001B0000-0x00000000001B2000-memory.dmp
            Filesize

            8KB

          • memory/1752-62-0x00000000001B0000-0x00000000001B2000-memory.dmp
            Filesize

            8KB

          • memory/1752-1-0x0000000010000000-0x0000000010020000-memory.dmp
            Filesize

            128KB

          • memory/1752-4-0x0000000000190000-0x00000000001A2000-memory.dmp
            Filesize

            72KB

          • memory/1752-60-0x00000000001B0000-0x00000000001B2000-memory.dmp
            Filesize

            8KB

          • memory/1752-61-0x0000000000210000-0x0000000000222000-memory.dmp
            Filesize

            72KB

          • memory/2440-64-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2440-108-0x00000000001F0000-0x00000000001F2000-memory.dmp
            Filesize

            8KB

          • memory/2440-154-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2440-100-0x0000000000200000-0x0000000000201000-memory.dmp
            Filesize

            4KB

          • memory/2984-20-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-14-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-17-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-22-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-16-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-21-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-59-0x0000000000480000-0x0000000000482000-memory.dmp
            Filesize

            8KB

          • memory/2984-66-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-65-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-67-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-68-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-69-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-71-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-19-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-83-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-84-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-87-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-89-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-52-0x0000000000480000-0x0000000000482000-memory.dmp
            Filesize

            8KB

          • memory/2984-23-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-18-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-50-0x0000000000490000-0x0000000000491000-memory.dmp
            Filesize

            4KB

          • memory/2984-115-0x0000000000480000-0x0000000000482000-memory.dmp
            Filesize

            8KB

          • memory/2984-155-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2984-15-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-153-0x00000000005B0000-0x000000000166A000-memory.dmp
            Filesize

            16.7MB

          • memory/2984-11-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB