Analysis

  • max time kernel
    150s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    20/10/2022, 11:42

General

  • Target

    8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77.exe

  • Size

    657KB

  • MD5

    9052493f270c74df4b073adb4ac96bc0

  • SHA1

    93bd0c5ad9a7feb96a95caa37f064a597bcc8dfa

  • SHA256

    8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77

  • SHA512

    6f053a296c538ad9b14ad6b4d22721f4b4704a1c6306db17a0c0ed54c0a97742326e0bc03d441c9db773647181a7cba69ce64ce29f31b3069c0678c88b484c8d

  • SSDEEP

    12288:SBws6vFhIE6yS58g/zmmhIoNJJ4+enudzr3Wv:MuL/SmgbmXoLJ4+Fm

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

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

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
  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 5 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • NSIS installer 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1152
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1288
        • C:\Users\Admin\AppData\Local\Temp\8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77.exe
          "C:\Users\Admin\AppData\Local\Temp\8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77.exe"
          2⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • Loads dropped DLL
          • 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:1204
          • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
            "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
            3⤵
            • Modifies firewall policy service
            • UAC bypass
            • Windows security bypass
            • Executes dropped EXE
            • Deletes itself
            • Loads dropped DLL
            • Windows security modification
            • Checks whether UAC is enabled
            • Enumerates connected drives
            • Drops autorun.inf file
            • Drops file in Program Files directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:276
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1232

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\006C2B75_Rar\8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77.exe

          Filesize

          581KB

          MD5

          19adbd36f1d5b67b7755f52e6afbb6be

          SHA1

          e9fb5123d34715c98f7ed1fb8f1a62ad3f722438

          SHA256

          49d992a7c0176cf6747b80d33d01c29c35fd241dfbb5c5317bab99173a2e714f

          SHA512

          e349ae51b2a845133e3849304ab3f7c7ffdd94e270104366145a4edd1e60c63beca507b7de034f0fcd226e2138c66ae67508228f737d0bc33df39ccedabd6d39

        • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          657KB

          MD5

          9052493f270c74df4b073adb4ac96bc0

          SHA1

          93bd0c5ad9a7feb96a95caa37f064a597bcc8dfa

          SHA256

          8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77

          SHA512

          6f053a296c538ad9b14ad6b4d22721f4b4704a1c6306db17a0c0ed54c0a97742326e0bc03d441c9db773647181a7cba69ce64ce29f31b3069c0678c88b484c8d

        • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          657KB

          MD5

          9052493f270c74df4b073adb4ac96bc0

          SHA1

          93bd0c5ad9a7feb96a95caa37f064a597bcc8dfa

          SHA256

          8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77

          SHA512

          6f053a296c538ad9b14ad6b4d22721f4b4704a1c6306db17a0c0ed54c0a97742326e0bc03d441c9db773647181a7cba69ce64ce29f31b3069c0678c88b484c8d

        • C:\Windows\SYSTEM.INI

          Filesize

          255B

          MD5

          33760b49616374064bff2a196f73c7ce

          SHA1

          e1e4d38291910f21f777a17c5d27cbf3e39f3207

          SHA256

          24510bdb168364a5a60bd2108781159fa8eef9dd4eac9441acc6746b1855941f

          SHA512

          38b70ebbbeb72ed2182d45925a9bd07c8bf99caefe3aa56ba370471a30c9d05398f10102dc2c064810ecd8c5dd35f9546f4d7717205e7abe413e07c5c3a76921

        • \Users\Admin\AppData\Local\Temp\nsd3121.tmp\KwMusicNsis.dll

          Filesize

          405KB

          MD5

          8b646e2f2af04d1937f507be2911c679

          SHA1

          9e0da642fc134c0ac565b9a08fc88c606d7a5094

          SHA256

          ada3650a124c69fa4ac2119682048aeec4fde64c0d57deab69ebf8ed73ed632b

          SHA512

          d24ce4d5f7c20f294234d6b28967b42c6d234cf13f3f02625fb3cba1b8562229ef2142671987d0325d2aa6625f795c72b97ee631aef87fe18de3de404e97b1b2

        • \Users\Admin\AppData\Local\Temp\nsd3121.tmp\NSISArray.dll

          Filesize

          25KB

          MD5

          7e63014772e6a50bab56dbdd8116c46d

          SHA1

          a3f7dd64493a70b5fa5c63bcbd1e28bb92c32faf

          SHA256

          28131b1323d95151de11da9f80340995c7f6b27845085b7e100256bfcd44d26b

          SHA512

          0b4f0229b8ac6ee239b03fccf7f4896f3aafea5a7e8588570b75d9f67f280ab1875c5754b431b0ba76e15f49d6724bbf246a7210756869d4eb620ede222c01ff

        • \Users\Admin\AppData\Local\Temp\nsd3121.tmp\System.dll

          Filesize

          11KB

          MD5

          c17103ae9072a06da581dec998343fc1

          SHA1

          b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

          SHA256

          dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

          SHA512

          d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          657KB

          MD5

          9052493f270c74df4b073adb4ac96bc0

          SHA1

          93bd0c5ad9a7feb96a95caa37f064a597bcc8dfa

          SHA256

          8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77

          SHA512

          6f053a296c538ad9b14ad6b4d22721f4b4704a1c6306db17a0c0ed54c0a97742326e0bc03d441c9db773647181a7cba69ce64ce29f31b3069c0678c88b484c8d

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          657KB

          MD5

          9052493f270c74df4b073adb4ac96bc0

          SHA1

          93bd0c5ad9a7feb96a95caa37f064a597bcc8dfa

          SHA256

          8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77

          SHA512

          6f053a296c538ad9b14ad6b4d22721f4b4704a1c6306db17a0c0ed54c0a97742326e0bc03d441c9db773647181a7cba69ce64ce29f31b3069c0678c88b484c8d

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          657KB

          MD5

          9052493f270c74df4b073adb4ac96bc0

          SHA1

          93bd0c5ad9a7feb96a95caa37f064a597bcc8dfa

          SHA256

          8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77

          SHA512

          6f053a296c538ad9b14ad6b4d22721f4b4704a1c6306db17a0c0ed54c0a97742326e0bc03d441c9db773647181a7cba69ce64ce29f31b3069c0678c88b484c8d

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          657KB

          MD5

          9052493f270c74df4b073adb4ac96bc0

          SHA1

          93bd0c5ad9a7feb96a95caa37f064a597bcc8dfa

          SHA256

          8fdd9d5d7afd4a1ee7f42c4a976d52ee395099da74db3d992de844b3f057fb77

          SHA512

          6f053a296c538ad9b14ad6b4d22721f4b4704a1c6306db17a0c0ed54c0a97742326e0bc03d441c9db773647181a7cba69ce64ce29f31b3069c0678c88b484c8d

        • memory/276-69-0x0000000002080000-0x000000000310E000-memory.dmp

          Filesize

          16.6MB

        • memory/276-77-0x0000000000240000-0x00000000002D1000-memory.dmp

          Filesize

          580KB

        • memory/276-84-0x0000000000240000-0x00000000002D1000-memory.dmp

          Filesize

          580KB

        • memory/276-83-0x0000000000400000-0x0000000000491000-memory.dmp

          Filesize

          580KB

        • memory/276-82-0x0000000000240000-0x00000000002D1000-memory.dmp

          Filesize

          580KB

        • memory/276-81-0x00000000005E0000-0x00000000005E2000-memory.dmp

          Filesize

          8KB

        • memory/276-80-0x0000000002080000-0x000000000310E000-memory.dmp

          Filesize

          16.6MB

        • memory/276-78-0x00000000005E0000-0x00000000005E2000-memory.dmp

          Filesize

          8KB

        • memory/276-76-0x0000000000400000-0x0000000000491000-memory.dmp

          Filesize

          580KB

        • memory/276-74-0x0000000002080000-0x000000000310E000-memory.dmp

          Filesize

          16.6MB

        • memory/1204-62-0x0000000000240000-0x00000000002D1000-memory.dmp

          Filesize

          580KB

        • memory/1204-55-0x00000000020D0000-0x000000000315E000-memory.dmp

          Filesize

          16.6MB

        • memory/1204-79-0x00000000020D0000-0x000000000315E000-memory.dmp

          Filesize

          16.6MB

        • memory/1204-57-0x0000000000400000-0x0000000000491000-memory.dmp

          Filesize

          580KB

        • memory/1204-63-0x0000000000240000-0x000000000024D000-memory.dmp

          Filesize

          52KB

        • memory/1204-60-0x0000000000400000-0x0000000000491000-memory.dmp

          Filesize

          580KB

        • memory/1204-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

          Filesize

          8KB

        • memory/1204-68-0x00000000020D0000-0x000000000315E000-memory.dmp

          Filesize

          16.6MB