Resubmissions

06-06-2022 14:46

220606-r5mbrshae6 10

06-06-2022 14:35

220606-rydq2sdcdq 10

Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    06-06-2022 14:46

General

  • Target

    c05561e39ebe1e3fb489e7d38906fc7f8ac49d56f22fe6e757c0412c70a7070a.exe

  • Size

    12.7MB

  • MD5

    06b07ecce07120ffc70da9f2ab553214

  • SHA1

    bfb2563cf8c7c2a5ce3b32acf4e7890b382e6c4e

  • SHA256

    c05561e39ebe1e3fb489e7d38906fc7f8ac49d56f22fe6e757c0412c70a7070a

  • SHA512

    a4cf68e455cdc046a91db56ca401ef2056fa3783bde6582bc98fbfa7b49d44a6f5290f01354179affd3f654a8f1c021ce700022c64b9ce1c41791d2b4b661598

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
  • UPX packed file 3 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
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1224
      • C:\Users\Admin\AppData\Local\Temp\c05561e39ebe1e3fb489e7d38906fc7f8ac49d56f22fe6e757c0412c70a7070a.exe
        "C:\Users\Admin\AppData\Local\Temp\c05561e39ebe1e3fb489e7d38906fc7f8ac49d56f22fe6e757c0412c70a7070a.exe"
        2⤵
        • Modifies firewall policy service
        • UAC bypass
        • Windows security bypass
        • 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:1036
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1180
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1124

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Persistence

        Modify Existing Service

        1
        T1031

        Privilege Escalation

        Bypass User Account Control

        1
        T1088

        Defense Evasion

        Modify Registry

        5
        T1112

        Bypass User Account Control

        1
        T1088

        Disabling Security Tools

        3
        T1089

        Discovery

        System Information Discovery

        1
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1036-54-0x0000000075941000-0x0000000075943000-memory.dmp
          Filesize

          8KB

        • memory/1036-55-0x0000000001FD0000-0x000000000308A000-memory.dmp
          Filesize

          16.7MB

        • memory/1036-56-0x0000000000400000-0x0000000000428000-memory.dmp
          Filesize

          160KB

        • memory/1036-57-0x00000000002E0000-0x0000000000308000-memory.dmp
          Filesize

          160KB

        • memory/1036-58-0x0000000001FD0000-0x000000000308A000-memory.dmp
          Filesize

          16.7MB

        • memory/1036-59-0x0000000000390000-0x0000000000392000-memory.dmp
          Filesize

          8KB

        • memory/1036-60-0x0000000000400000-0x0000000000428000-memory.dmp
          Filesize

          160KB

        • memory/1036-61-0x0000000001FD0000-0x000000000308A000-memory.dmp
          Filesize

          16.7MB