Analysis

  • max time kernel
    21s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    21/10/2023, 21:35

General

  • Target

    NEAS.e3910cea311a827995eb06ad21ab8310.exe

  • Size

    732KB

  • MD5

    e3910cea311a827995eb06ad21ab8310

  • SHA1

    b966c402786860721b75e57ee26790bbbe50860c

  • SHA256

    34fe41ca74cdae8f9184a5ee8a3df679590d800d8efdbbb6dc6e55c68298afc7

  • SHA512

    8a9063e619c3d7a04276450b27dcb1cee7eb521cdde9a79b2eb699077529dd8795367be98132c663952facac205df15ca3bbc25fc65ea555d16cf23cedd40e52

  • SSDEEP

    12288:JTyjXW+48qWywrU4kGFezOAVuJ5PIbww7F5DO3HYffWGlUuda4:tIXW/8yw1ez54lI3F5SXYHWG5M4

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
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 23 IoCs

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

  • Windows security modification 2 TTPs 14 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 23 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 40 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1116
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:1048
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1204
          • C:\Users\Admin\AppData\Local\Temp\NEAS.e3910cea311a827995eb06ad21ab8310.exe
            "C:\Users\Admin\AppData\Local\Temp\NEAS.e3910cea311a827995eb06ad21ab8310.exe"
            2⤵
            • Modifies firewall policy service
            • Modifies visibility of file extensions in Explorer
            • Modifies visiblity of hidden/system files in Explorer
            • UAC bypass
            • Windows security bypass
            • Loads dropped DLL
            • Windows security modification
            • Adds Run key to start application
            • Checks whether UAC is enabled
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:2792
            • C:\Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe
              C:\Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe
              3⤵
              • Modifies firewall policy service
              • Modifies visiblity of hidden/system files in Explorer
              • 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 SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              • System policy modification
              PID:2708
        • C:\Windows\system32\Dwm.exe
          "C:\Windows\system32\Dwm.exe"
          1⤵
            PID:1164

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\0F7696E3_Rar\rundll32.exe

                  Filesize

                  664KB

                  MD5

                  8ca8216260b4f5e0d6e1132e49d1d25a

                  SHA1

                  c7ce0406001fb3eaaf82c5ad33945f01f0dddc11

                  SHA256

                  ddc806307ec3d800851db6c617343cad0a5e9af8dafe867b6dc2f33dd528cf64

                  SHA512

                  0644472c924acb7ae9c8f4b3222e5b2d3a95a9346587a104e437ab0d0c832b05fd153d7450e6d5f5f7d685be9b222712c2c6d869c05acd7efc89f63e83e29a33

                • C:\Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe

                  Filesize

                  732KB

                  MD5

                  e3910cea311a827995eb06ad21ab8310

                  SHA1

                  b966c402786860721b75e57ee26790bbbe50860c

                  SHA256

                  34fe41ca74cdae8f9184a5ee8a3df679590d800d8efdbbb6dc6e55c68298afc7

                  SHA512

                  8a9063e619c3d7a04276450b27dcb1cee7eb521cdde9a79b2eb699077529dd8795367be98132c663952facac205df15ca3bbc25fc65ea555d16cf23cedd40e52

                • C:\Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe

                  Filesize

                  732KB

                  MD5

                  e3910cea311a827995eb06ad21ab8310

                  SHA1

                  b966c402786860721b75e57ee26790bbbe50860c

                  SHA256

                  34fe41ca74cdae8f9184a5ee8a3df679590d800d8efdbbb6dc6e55c68298afc7

                  SHA512

                  8a9063e619c3d7a04276450b27dcb1cee7eb521cdde9a79b2eb699077529dd8795367be98132c663952facac205df15ca3bbc25fc65ea555d16cf23cedd40e52

                • C:\Windows\SYSTEM.INI

                  Filesize

                  257B

                  MD5

                  fa9e0a42493fab1c804c61f4b8674b43

                  SHA1

                  9323189d67b0d69a000eb7f01da4e67f365447d1

                  SHA256

                  a5a8f7bcb920c9aaa6ad3bb6be7b353837447860a0580c6fa00add727c06bf80

                  SHA512

                  a545015813f045e198452462373b1c7d8545a9323b81340e6bea6222ff1e6bc622198b003fc323549ebc2a24cf7f0a646a0194522e06935868ff9c71285828e0

                • C:\mgbjxx.pif

                  Filesize

                  97KB

                  MD5

                  f1a8f9a4a760f2a5d52c648f55f37c0f

                  SHA1

                  29e0399367d9f2f10e8d8e5733cd943b05273aae

                  SHA256

                  2e57720d385ee01ac4948047844cf47b1ddc8ca86112f7edbf5540a2543af696

                  SHA512

                  de1770a8792b8658804cf524f7fb2775f99ec2ffe3b207787a13f31a221bca5efe92104c3ca3e075f36fcc11c683d61b1a7bd59381fce5dc4c5bd4ec7c857da2

                • \Users\Admin\AppData\Roaming\Microsoft\Office\rundll32.exe

                  Filesize

                  732KB

                  MD5

                  e3910cea311a827995eb06ad21ab8310

                  SHA1

                  b966c402786860721b75e57ee26790bbbe50860c

                  SHA256

                  34fe41ca74cdae8f9184a5ee8a3df679590d800d8efdbbb6dc6e55c68298afc7

                  SHA512

                  8a9063e619c3d7a04276450b27dcb1cee7eb521cdde9a79b2eb699077529dd8795367be98132c663952facac205df15ca3bbc25fc65ea555d16cf23cedd40e52

                • memory/1116-9-0x0000000001CA0000-0x0000000001CA2000-memory.dmp

                  Filesize

                  8KB

                • memory/2708-84-0x00000000003F0000-0x00000000003F1000-memory.dmp

                  Filesize

                  4KB

                • memory/2708-79-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-99-0x00000000002D0000-0x00000000002D2000-memory.dmp

                  Filesize

                  8KB

                • memory/2708-93-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-92-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-91-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-90-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-88-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-86-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-85-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-82-0x00000000002D0000-0x00000000002D2000-memory.dmp

                  Filesize

                  8KB

                • memory/2708-53-0x0000000000400000-0x00000000004BF000-memory.dmp

                  Filesize

                  764KB

                • memory/2708-70-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-66-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-63-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-62-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2708-60-0x0000000003A50000-0x0000000004B0A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2792-17-0x0000000002520000-0x00000000035DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2792-48-0x00000000080C0000-0x000000000817F000-memory.dmp

                  Filesize

                  764KB

                • memory/2792-42-0x0000000000240000-0x0000000000242000-memory.dmp

                  Filesize

                  8KB

                • memory/2792-34-0x0000000002520000-0x00000000035DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2792-8-0x0000000002520000-0x00000000035DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2792-12-0x0000000002520000-0x00000000035DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2792-0-0x0000000000400000-0x00000000004BF000-memory.dmp

                  Filesize

                  764KB

                • memory/2792-19-0x0000000000240000-0x0000000000242000-memory.dmp

                  Filesize

                  8KB

                • memory/2792-7-0x0000000002520000-0x00000000035DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2792-58-0x0000000000400000-0x00000000004BF000-memory.dmp

                  Filesize

                  764KB

                • memory/2792-35-0x0000000002520000-0x00000000035DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2792-22-0x0000000000390000-0x0000000000391000-memory.dmp

                  Filesize

                  4KB

                • memory/2792-29-0x0000000002520000-0x00000000035DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2792-27-0x0000000002520000-0x00000000035DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2792-26-0x0000000000240000-0x0000000000242000-memory.dmp

                  Filesize

                  8KB

                • memory/2792-24-0x0000000002520000-0x00000000035DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2792-25-0x0000000000390000-0x0000000000391000-memory.dmp

                  Filesize

                  4KB

                • memory/2792-4-0x0000000002520000-0x00000000035DA000-memory.dmp

                  Filesize

                  16.7MB