Analysis

  • max time kernel
    25s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    11-01-2025 10:07

General

  • Target

    b91d629f3b3f5c4ec1d2daa9f39ad57233d088e3bc5391a5b9ea1cf0b9a2287dN.exe

  • Size

    708KB

  • MD5

    f9e4b8c0996aadb81b69c9a93ebba2b0

  • SHA1

    fa85ca1759a704fd1cafe8777d6877f5deef3743

  • SHA256

    b91d629f3b3f5c4ec1d2daa9f39ad57233d088e3bc5391a5b9ea1cf0b9a2287d

  • SHA512

    4c5484859607f1af5771de029585cf2502f13b0cdf4ab298a4582454f8529719ec774af9168eedcaa0774ecc588bd2e90bbc1acc1c4294803f322e299487e142

  • SSDEEP

    12288:7qU89vzAaKUaQqbWQrPBFSHvkJO1tmPY+QL2TFDhvfo:svzrpEWQ7zmvFYQL2FNw

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/

http://klkjwre77638dfqwieuoi888.info/

Signatures

  • Detect Neshta payload 5 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Sality

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

  • Sality family
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • UPX packed file 23 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1108
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1168
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1204
          • C:\Users\Admin\AppData\Local\Temp\b91d629f3b3f5c4ec1d2daa9f39ad57233d088e3bc5391a5b9ea1cf0b9a2287dN.exe
            "C:\Users\Admin\AppData\Local\Temp\b91d629f3b3f5c4ec1d2daa9f39ad57233d088e3bc5391a5b9ea1cf0b9a2287dN.exe"
            2⤵
            • Modifies firewall policy service
            • UAC bypass
            • Windows security bypass
            • Disables RegEdit via registry modification
            • Loads dropped DLL
            • Modifies system executable filetype association
            • Windows security modification
            • Checks whether UAC is enabled
            • Drops file in Program Files directory
            • Drops file in Windows directory
            • System Location Discovery: System Language Discovery
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:1740
            • C:\Users\Admin\AppData\Local\Temp\3582-490\b91d629f3b3f5c4ec1d2daa9f39ad57233d088e3bc5391a5b9ea1cf0b9a2287dN.exe
              "C:\Users\Admin\AppData\Local\Temp\3582-490\b91d629f3b3f5c4ec1d2daa9f39ad57233d088e3bc5391a5b9ea1cf0b9a2287dN.exe"
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2848
              • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
                "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\3582-490\
                4⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • System Location Discovery: System Language Discovery
                • Suspicious use of FindShellTrayWindow
                PID:3020
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:844

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\0F7688DF_Rar\b91d629f3b3f5c4ec1d2daa9f39ad57233d088e3bc5391a5b9ea1cf0b9a2287dN.exe

            Filesize

            636KB

            MD5

            e5bdd939dc6828ae594924ca3c412de7

            SHA1

            485a4b10130aba2ee7b7b56e32e30a057b1e7ce1

            SHA256

            9874a5d03de96b51f58bb519c3078229a0a2ea125a53ea99fdca25d8cfa981b8

            SHA512

            d9cac72410c6af62b4f736679f4e3cc40d9167ae7053c2b31a11b47cdf0a73e60184813f335079aa095e67817ec8f517fce6810cad458d7a85a4032ae0b03a7c

          • C:\Users\Admin\AppData\Local\Temp\3582-490\b91d629f3b3f5c4ec1d2daa9f39ad57233d088e3bc5391a5b9ea1cf0b9a2287dN.exe

            Filesize

            596KB

            MD5

            e412b724c184019372091156991f25d7

            SHA1

            71e0ae3fa7db2568365c7eac5dd982c0dad23eae

            SHA256

            aa48ff7c848a2631d823b6e1696c147509a601d813a8f7268d3b621b78933ce9

            SHA512

            c6d0c8339f41d29c04ff0eec376abf574be22b5a7e60bbc3c3969f1d50e018f250cf9013e142170c117d4fe2945462d1d3ef3191fa6fa28a4032debf179aa973

          • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

            Filesize

            252KB

            MD5

            9e2b9928c89a9d0da1d3e8f4bd96afa7

            SHA1

            ec66cda99f44b62470c6930e5afda061579cde35

            SHA256

            8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

            SHA512

            2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

          • \Users\Admin\AppData\Local\Temp\nsd931D.tmp\LangDLL.dll

            Filesize

            5KB

            MD5

            30b091668111ab1d6c19f16586a9eee5

            SHA1

            aea49d81cf9972eaf1604793c04d13ddffe2c475

            SHA256

            331ca4b3a311324b463167ec43851146e57a2d90500ac3fd57a7683f6b777ffb

            SHA512

            6dd592af085b2e28c54d7f525916112dbf5cfe134393b0b97f8f1f64739cf90962273c51f02e8ce2c623cf6aa8355eacda5db0b0256d8f05a77ccf0f99d11648

          • \Users\Admin\AppData\Local\Temp\nsd931D.tmp\StdUtils.dll

            Filesize

            99KB

            MD5

            7abf66bab64e83da7a4da626bc34493a

            SHA1

            c3adab85d079b75b0c46f6b25fd2a736687624c5

            SHA256

            cbe5843990076d7cda9fe83aa305d66d3a0ffdcca932ef23114d1b3a491924f9

            SHA512

            f1beeb7df3e24daa72bdb093ea655d236c601e55f039322676f80c8aace0d39af6fab78be6b6b63e9486473f78dae42a762022f776b55d118c7a20948990dd5e

          • \Users\Admin\AppData\Local\Temp\nsd931D.tmp\System.dll

            Filesize

            11KB

            MD5

            9625d5b1754bc4ff29281d415d27a0fd

            SHA1

            80e85afc5cccd4c0a3775edbb90595a1a59f5ce0

            SHA256

            c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448

            SHA512

            dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b

          • \Users\Admin\AppData\Local\Temp\nsd931D.tmp\w7tbp.dll

            Filesize

            2KB

            MD5

            9a3031cc4cef0dba236a28eecdf0afb5

            SHA1

            708a76aa56f77f1b0ebc62b023163c2e0426f3ac

            SHA256

            53bb519e3293164947ac7cbd7e612f637d77a7b863e3534ba1a7e39b350d3c00

            SHA512

            8fddde526e7d10d77e247ea80b273beae9dde1d4112806f1f5c3e6a409247d54d8a4445ab5bdd77025a434c3d1dcfdf480dac21abbdb13a308d5eb74517fab53

          • memory/1740-11-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-273-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-12-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-14-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-4-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-35-0x0000000004270000-0x0000000004271000-memory.dmp

            Filesize

            4KB

          • memory/1740-33-0x0000000004270000-0x0000000004271000-memory.dmp

            Filesize

            4KB

          • memory/1740-32-0x0000000004260000-0x0000000004262000-memory.dmp

            Filesize

            8KB

          • memory/1740-30-0x0000000004260000-0x0000000004262000-memory.dmp

            Filesize

            8KB

          • memory/1740-18-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-44-0x0000000004260000-0x0000000004262000-memory.dmp

            Filesize

            8KB

          • memory/1740-21-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-20-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-45-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-55-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-0-0x0000000000400000-0x000000000042D000-memory.dmp

            Filesize

            180KB

          • memory/1740-16-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-13-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-84-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-124-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-139-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-140-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-149-0x0000000000400000-0x000000000042D000-memory.dmp

            Filesize

            180KB

          • memory/1740-150-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-154-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-272-0x0000000000400000-0x000000000042D000-memory.dmp

            Filesize

            180KB

          • memory/1740-125-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-171-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/1740-170-0x00000000043A0000-0x00000000043A1000-memory.dmp

            Filesize

            4KB

          • memory/1740-179-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-182-0x0000000004260000-0x0000000004262000-memory.dmp

            Filesize

            8KB

          • memory/1740-181-0x0000000000400000-0x000000000042D000-memory.dmp

            Filesize

            180KB

          • memory/1740-15-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-9-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/1740-17-0x0000000001DC0000-0x0000000002E4E000-memory.dmp

            Filesize

            16.6MB

          • memory/3020-176-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/3020-178-0x00000000005A0000-0x00000000005A1000-memory.dmp

            Filesize

            4KB