Analysis

  • max time kernel
    86s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05-02-2023 13:33

General

  • Target

    5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe

  • Size

    3.6MB

  • MD5

    36fd273ea7607d3a203f257f4e2649ed

  • SHA1

    5e243f79ecb539d0d1f75fce7ddfedeccee70a48

  • SHA256

    471d501162e2a5cb6aab3f4f5362ff843d05ef9f20d9fd7ea29733d3a9875747

  • SHA512

    cf81163bc6d1f1141130fbe70944387b97d322afe837ad21a88a0be8f9fd87615bd7022cc572b1783871cc99f224258bae75855e805c733793b723ba0483597d

  • SSDEEP

    98304:VQF9SqUKUehGS26Ish7MUTjA+1VFnqWXvqaY4:VSSzMGS26x1MUTM+/Fh

Malware Config

Signatures

  • Detect PureCrypter injector 1 IoCs
  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe
    "C:\Users\Admin\AppData\Local\Temp\5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:952
      • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
        "C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1312
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwA1AA==
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1196
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1852
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:996
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          PID:592
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          PID:632
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          PID:1668
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          PID:524
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          PID:1980
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          PID:1392
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
            PID:872
          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            4⤵
              PID:1072
            • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
              C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
              4⤵
                PID:1648
              • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
                C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
                4⤵
                  PID:760

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Persistence

          Registry Run Keys / Startup Folder

          1
          T1060

          Defense Evasion

          Modify Registry

          1
          T1112

          Discovery

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
            Filesize

            286.9MB

            MD5

            60ce69fc83365dcf75fd3fef57e1b727

            SHA1

            6a3c51f8f2c67056109c01625562575a146ad21d

            SHA256

            2cb1af41aeb2acb9ca635ebdbbfcc6caea4dc7bc1f24f7bca0ccada1850309a2

            SHA512

            fb70b631224043a097e032d2ce9a3a96ad0bcb1d283b8b53c9a0161dbb9f84ec05f06da705602a3f7bfc0e74ee2467dcd11ba249306411ac7df067613dae5cea

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
            Filesize

            283.8MB

            MD5

            f5f1d72788a9140475f943309dd6d5e4

            SHA1

            805af08224cd8b4dd0e1a7fe59419a7b1d7f07c8

            SHA256

            e0f2f2867d117b5bcc3f63cb700ae96eccf90be1ffe7a42614023981d52c4a17

            SHA512

            0e689ecdd6397424f5d43031ce057e1f1f31b4c1b3e5b234335f311c3e89ad749105bbf247b189107d9e4d784a552b2baef6813ffb20b3d9632e188e47968a72

          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
            Filesize

            7KB

            MD5

            5a20766aa2701109963a37b0cd8a0c45

            SHA1

            a2d88ec91b1cf444d488547626f1af4e6f8a99f4

            SHA256

            af878b2702384f8401e1e9cbfb574a05eaa9be649c59bcf5e4a675ad0199b626

            SHA512

            0c90cf3cecbffc315e191427ac4468647d0f3c34ac32eee3206fb72ed6401a997bf2ebe3597c4f3a323f54e19ce2e4d6924d007e4068ae16e4f5d150969b3af0

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            189.1MB

            MD5

            507d618a86d89a02b040182c5bc9342c

            SHA1

            24d84110fe6dd3767d9fce4cca5e3d566c324f97

            SHA256

            9d3691114a97c0a29819e7da05cffaddce07387c4c1f7fd9d04a428955bb4e31

            SHA512

            6a38be454356b712bb143afbd7bd9c214dc41266e717bfb418dcdf9a5f6937840804f180a9d08c921ac6b85a509a77d0898ccab400aa4e077c01b6f435c34b3d

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            174.2MB

            MD5

            49fbffff141834be4bddc71a4e953fdc

            SHA1

            4350f25a05b77bc3f2ac1a2ccc91aff9a7182e9f

            SHA256

            306ab48ae58eb9fe8dd8afd5bc4bb23520e414ebb054bbd9956ade784eddd298

            SHA512

            36205020ed0b4a6dc7fa5896542ca18f6a87fbf8346d4392ea03efc56d7589dcee255bd5c922920311d06e53486719a56ebfa833b746442799345d78680ed05f

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            56.6MB

            MD5

            13f18bbe7b2165d7e344b0872aca4b9f

            SHA1

            fa0b72acdedeb31605b6c40b4d7abbceef56a446

            SHA256

            0da7ca9168fb1cf7e39ff12040d71f68e7739d0961137da0b4e9fec05e10521e

            SHA512

            f0663c811a2a8ec0dd2d05e80f041c07c4085d2841e98f46cbcf4d0dbda4fc1781f7e3bfc8acd366e012db5c75f2c6f06c3bbbd8dffce1c73e71e305e5c21f05

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            56.7MB

            MD5

            643cf7240942bc023af792411056cebf

            SHA1

            8ebebdecccff5d2bf2d5f3c2ace3ba237e8aacb0

            SHA256

            856401329af80af877e94ec026e9f15b9e2edec4fa528cb7cb1e4880315a5dd5

            SHA512

            c886300d8079872213549ba014a591a9f979ca3d359cb503cf1b0b38cf701abcd5cc856577bbe7191d48e2ae1ca42bfe5bc9f6852ba9df3fcb12483bbea324c0

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            55.9MB

            MD5

            5e5eb5f7da1d5cf928a1043771faadbf

            SHA1

            2a78eb58041ac3b4d74f85f988771eecd4a98ed2

            SHA256

            1540c0a54d33807a15fac41a27f68b45213b28093733e400b25bf616e7386133

            SHA512

            1d9fcfd3e4f98f4ecd3f600beb06add7bfa0cd30c407dce2ec820836a85da0adc803bda9de8a6739f45a309d7f3b58dacf7990a3004b7a1fefa7b3d6588b9a66

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            55.5MB

            MD5

            f253306e14932da8cdc629c432fd741b

            SHA1

            440b65c5d8310c1ed4b1ba76ed365c2eb39f9262

            SHA256

            7b592f752786faaf172665483a7767c0dfbbd3004e2e481c4704a5c63735326b

            SHA512

            d83ad361933065c8466d19cb2f3982b99570eb1f25272df440460af3e7a6975b392f3ab73e91a89706bec8ec6c1de467be1464fa73ad868b4747e9d722e6dae2

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            55.3MB

            MD5

            c5a17458c54d4c86696d749a150a8026

            SHA1

            31276bda5ae97f09f1b5eafefddc942bfb5bb463

            SHA256

            14f3f66c43deffede31bdb214e06517c19a48be2711143815428d45fd81fe5b2

            SHA512

            70e129426b1b04e791137a87b88393a7f8e4d794d39511c57573c26eba39d9e79a4d14f40d2f704f2d602d3a982e943f308c6d46090c44164d01896d02226f37

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            55.3MB

            MD5

            c5a17458c54d4c86696d749a150a8026

            SHA1

            31276bda5ae97f09f1b5eafefddc942bfb5bb463

            SHA256

            14f3f66c43deffede31bdb214e06517c19a48be2711143815428d45fd81fe5b2

            SHA512

            70e129426b1b04e791137a87b88393a7f8e4d794d39511c57573c26eba39d9e79a4d14f40d2f704f2d602d3a982e943f308c6d46090c44164d01896d02226f37

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            54.8MB

            MD5

            4f627fc5c7710fa75132b25ad613ecb0

            SHA1

            bd690529c8fb5f508970c9a1059b0b57ecf39ef4

            SHA256

            0929e1d7e1c1998d6a76511c2a61e88bde6071c123fae6d16dfbe751476cb3e7

            SHA512

            e49212d68711e43f7dfa83f0251e61875a220a37c6337724c3dfcd93646e5a45e23758380065b655efe7500d264693b444061c14024b7943a083a577feeb06ef

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            42.6MB

            MD5

            4f35c0d0a3c25d5d1418dd919618494c

            SHA1

            df608fa4563790e926576aa66f2d173d611a2775

            SHA256

            7f71614346999a99b84ff9f2430c9ee7cac59f0aba724bb9f186b5e6f2ff3492

            SHA512

            02aa5fdb2282175f06a1f1ecc8e8a2dfe13631366f0f8618af49658d05c8189f9030af4725afb37eab1db6843646c418ab2567d7b051877f96d083d5f4a029d4

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            55.3MB

            MD5

            c5a17458c54d4c86696d749a150a8026

            SHA1

            31276bda5ae97f09f1b5eafefddc942bfb5bb463

            SHA256

            14f3f66c43deffede31bdb214e06517c19a48be2711143815428d45fd81fe5b2

            SHA512

            70e129426b1b04e791137a87b88393a7f8e4d794d39511c57573c26eba39d9e79a4d14f40d2f704f2d602d3a982e943f308c6d46090c44164d01896d02226f37

          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            40.4MB

            MD5

            eb00da285839072ef5a6160eb8428884

            SHA1

            6b056fedd14a05a37139974799396361c9bb41ea

            SHA256

            3e59b955efcc34b94def0ef44ad22d59bd60086da5bdc3396002c08a8a4b1814

            SHA512

            c68a1939d29125523516cc6e91e28dde08d40717520b7d92251921eefd188e61e025fbd887a701590efe7506cb77da503f7e3d60c16f365ceb04f8a51fedc966

          • \Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            194.1MB

            MD5

            d475b6cf6be3bf7c604094cec682e704

            SHA1

            3b3b87e2878e1d7fbd1d31203f4d14b67377ff6d

            SHA256

            27866f5184a5dbb08d452bdfff5d87405ba73658dfa3ab3fa4ee1b5c013b948f

            SHA512

            4e6a8648bae10d3c5935abb112deb26cd1d5c3956807a202ec5f804e4322f46a8ee35400d5e9e6d8f0052460050f08f66df96d2a6de9bb835648d9a329e148fe

          • \Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            173.2MB

            MD5

            3c82a2c874ddb75e2a45b0cf373221d5

            SHA1

            8d1006f5ff6dc1ed07a8beba5ea7c6191cff205c

            SHA256

            9bf0074f9521a7cc173ef281dacf02536351325215e4081fbec85b179a0dd0dd

            SHA512

            29b8ca39cbd60044b622b5bccb90a19394d87c75ce36d079b81a67e06ca12031c99e2a3a558fc0388f953c9fc908f8b940e91591f74f311cebd305ef7735a52d

          • \Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            189.8MB

            MD5

            ce179c2a45984e7dc1edda9dbf250274

            SHA1

            5e0d82729c4508c172997141436ebb86582a7e51

            SHA256

            a5c15078530cea94fc2b835fa486094f38e04035c1a380a0800e0b1f9e7431e4

            SHA512

            5c25326fced5d29651721e01ac678357131cc98d33d5bdb4b14a5dc4ff89baa0d068c29a305ed0517b90325ae0b4e86c9626abf5864fd9f65319c1eee2f5783c

          • \Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            Filesize

            187.9MB

            MD5

            8600fd1288dda16a120cb27366c353e4

            SHA1

            ca7d2da689261b9f1e238929766665f9fc4cef5d

            SHA256

            75b99b5d6dff7c4b103a32153e30af45b6675ab26d58dd5530168d9c9bb14084

            SHA512

            61fc2b284b6afd3c2e5077b741d43ce4189fc980c5555a3eb7c46cea7548af8631a617e8fb9b37f17647da926b5b06ccf5979feb067fb71cbf17f95ef1efb36f

          • memory/952-54-0x0000000000000000-mapping.dmp
          • memory/952-56-0x0000000075DA1000-0x0000000075DA3000-memory.dmp
            Filesize

            8KB

          • memory/996-87-0x000000006F2F0000-0x000000006F89B000-memory.dmp
            Filesize

            5.7MB

          • memory/996-74-0x0000000000000000-mapping.dmp
          • memory/1196-71-0x000000006F5A0000-0x000000006FB4B000-memory.dmp
            Filesize

            5.7MB

          • memory/1196-70-0x000000006F5A0000-0x000000006FB4B000-memory.dmp
            Filesize

            5.7MB

          • memory/1196-69-0x000000006F5A0000-0x000000006FB4B000-memory.dmp
            Filesize

            5.7MB

          • memory/1196-67-0x0000000000000000-mapping.dmp
          • memory/1312-73-0x00000000053A0000-0x0000000005512000-memory.dmp
            Filesize

            1.4MB

          • memory/1312-66-0x00000000064D0000-0x0000000006870000-memory.dmp
            Filesize

            3.6MB

          • memory/1312-65-0x0000000000320000-0x0000000000A94000-memory.dmp
            Filesize

            7.5MB

          • memory/1312-62-0x0000000000000000-mapping.dmp
          • memory/1852-72-0x0000000000000000-mapping.dmp