Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    10-06-2024 11:37

General

  • Target

    4486f6ac3e18417e4e804648a8b4c5d8306962454c87a20a8fa297f3f755e69b.dll

  • Size

    120KB

  • MD5

    dafbb3fec4ddacbe2ed7c4374e4845bd

  • SHA1

    39fec98fd6634287f5154aeab7dc2b349a627377

  • SHA256

    4486f6ac3e18417e4e804648a8b4c5d8306962454c87a20a8fa297f3f755e69b

  • SHA512

    c8e6d1b97791a48d48a1921314dc67ad4c63524aa9e388622feb6d31f35fbd1231030761e817934d7c43eb77fe3ca0d1106001a9e8c7f8b63a6fc30855c9b0f1

  • SSDEEP

    1536:+iqOIJUAxJFq9baY7Y/DylXMT1s+u40MEn7aPPb003KrKbCBN7BMt1G7BCkgm:0xGbaRY8T17XlOQY4K2bCBN7B7Rt

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 24 IoCs
  • UPX dump on OEP (original entry point) 28 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 24 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 13 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1076
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1140
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1196
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\4486f6ac3e18417e4e804648a8b4c5d8306962454c87a20a8fa297f3f755e69b.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2084
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\4486f6ac3e18417e4e804648a8b4c5d8306962454c87a20a8fa297f3f755e69b.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:2076
              • C:\Users\Admin\AppData\Local\Temp\f761390.exe
                C:\Users\Admin\AppData\Local\Temp\f761390.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:2436
              • C:\Users\Admin\AppData\Local\Temp\f761526.exe
                C:\Users\Admin\AppData\Local\Temp\f761526.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • Windows security modification
                • Checks whether UAC is enabled
                • Drops file in Windows directory
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2520
              • C:\Users\Admin\AppData\Local\Temp\f7633fc.exe
                C:\Users\Admin\AppData\Local\Temp\f7633fc.exe
                4⤵
                • Executes dropped EXE
                PID:2796
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1688

          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:\Windows\SYSTEM.INI
            Filesize

            257B

            MD5

            f0a6c526482a8b4cfa01c940420dd97e

            SHA1

            5bce3cfe1b87b361a4559dfb2e5d5a251bb30773

            SHA256

            93bb47bfb509492f2a1a73a8ebff9947f1c02f4041ec0dc556d49919f4a8e8f6

            SHA512

            0e24d875761513c5b6811eff5c08068a193df6b92514fb9c2ed85a3347024797206d46eb84a386ccd5b53fef48be3fde167acdc14984ef40a45a9c8595aafd46

          • \Users\Admin\AppData\Local\Temp\f761390.exe
            Filesize

            97KB

            MD5

            d2c424d9edba37fdec34c95a1a25b654

            SHA1

            61e7246c16c9af6a891ce499c35250bf5986ce6d

            SHA256

            60bc52c2227be388ecd8502b33e2ab6b7c0bd96af8ddcee30eec8a12c9974aef

            SHA512

            4ff0a498d2349f334e06c5ac4c64435a5f41bdfec084330aca2f043d647cde758bd898bc6260283b352e13b4505c262ac0141e55c388da13ab3603f9798caa21

          • memory/1076-29-0x0000000000490000-0x0000000000492000-memory.dmp
            Filesize

            8KB

          • memory/2076-36-0x00000000001E0000-0x00000000001E2000-memory.dmp
            Filesize

            8KB

          • memory/2076-37-0x0000000000200000-0x0000000000201000-memory.dmp
            Filesize

            4KB

          • memory/2076-47-0x0000000000200000-0x0000000000201000-memory.dmp
            Filesize

            4KB

          • memory/2076-10-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2076-9-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2076-77-0x00000000001E0000-0x00000000001E2000-memory.dmp
            Filesize

            8KB

          • memory/2076-80-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2076-1-0x0000000010000000-0x0000000010020000-memory.dmp
            Filesize

            128KB

          • memory/2076-57-0x00000000001E0000-0x00000000001E2000-memory.dmp
            Filesize

            8KB

          • memory/2076-58-0x0000000000450000-0x0000000000462000-memory.dmp
            Filesize

            72KB

          • memory/2076-59-0x00000000001E0000-0x00000000001E2000-memory.dmp
            Filesize

            8KB

          • memory/2436-62-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-20-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-18-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-49-0x00000000004E0000-0x00000000004E2000-memory.dmp
            Filesize

            8KB

          • memory/2436-50-0x00000000004E0000-0x00000000004E2000-memory.dmp
            Filesize

            8KB

          • memory/2436-15-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-22-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-23-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-19-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-11-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2436-21-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-16-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-14-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-63-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-64-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-65-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-66-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-68-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-69-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-48-0x0000000002E90000-0x0000000002E91000-memory.dmp
            Filesize

            4KB

          • memory/2436-17-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-82-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-83-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-145-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2436-146-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-122-0x00000000004E0000-0x00000000004E2000-memory.dmp
            Filesize

            8KB

          • memory/2436-106-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2436-104-0x00000000005F0000-0x00000000016AA000-memory.dmp
            Filesize

            16.7MB

          • memory/2520-102-0x0000000000260000-0x0000000000262000-memory.dmp
            Filesize

            8KB

          • memory/2520-95-0x0000000000260000-0x0000000000262000-memory.dmp
            Filesize

            8KB

          • memory/2520-94-0x0000000000270000-0x0000000000271000-memory.dmp
            Filesize

            4KB

          • memory/2520-61-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2520-158-0x0000000000A10000-0x0000000001ACA000-memory.dmp
            Filesize

            16.7MB

          • memory/2520-182-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2520-183-0x0000000000A10000-0x0000000001ACA000-memory.dmp
            Filesize

            16.7MB

          • memory/2796-103-0x0000000000260000-0x0000000000262000-memory.dmp
            Filesize

            8KB

          • memory/2796-101-0x0000000000260000-0x0000000000262000-memory.dmp
            Filesize

            8KB

          • memory/2796-100-0x00000000002B0000-0x00000000002B1000-memory.dmp
            Filesize

            4KB

          • memory/2796-187-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB