Analysis

  • max time kernel
    149s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 14:14

General

  • Target

    537d821ae20091bca9df3b89d52c5f4a5491f9e281d59fcfcdbfb6718d1af479.exe

  • Size

    47KB

  • MD5

    71ee47f249e24c195d23e02d30915fb1

  • SHA1

    cee911d55fafa45f87cd0784912ba2d376921b9b

  • SHA256

    537d821ae20091bca9df3b89d52c5f4a5491f9e281d59fcfcdbfb6718d1af479

  • SHA512

    9110164c92b8188e48dbaf92dda7a78e9bca618fa94a7436c3b4a4a5ae43c87af54b49f223a010d7d5db7049951ae4fb832ec2c6d511c9c470f6a0e308cc96f4

  • SSDEEP

    768:/IPcTO5RroZJ76739sBWsNscWlM3dN9N3ZjfPPuWQ3655Kv1X/qY1MSd:/wSe+Zk78NR3dN5nPuHqaNrFd

Score
7/10

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3416
      • C:\Users\Admin\AppData\Local\Temp\537d821ae20091bca9df3b89d52c5f4a5491f9e281d59fcfcdbfb6718d1af479.exe
        "C:\Users\Admin\AppData\Local\Temp\537d821ae20091bca9df3b89d52c5f4a5491f9e281d59fcfcdbfb6718d1af479.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4664
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4216
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:3512
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a4045.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3660
            • C:\Users\Admin\AppData\Local\Temp\537d821ae20091bca9df3b89d52c5f4a5491f9e281d59fcfcdbfb6718d1af479.exe
              "C:\Users\Admin\AppData\Local\Temp\537d821ae20091bca9df3b89d52c5f4a5491f9e281d59fcfcdbfb6718d1af479.exe"
              4⤵
              • Executes dropped EXE
              PID:1016
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • Drops startup file
            • Executes dropped EXE
            • Enumerates connected drives
            • Drops file in Program Files directory
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:4080
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1380
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:1768
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2732
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2000

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe
            Filesize

            251KB

            MD5

            87463f1c73625d5bd53aea91d70242bf

            SHA1

            1c957b20a479f7126a535e85702166691fdc6d8a

            SHA256

            9ea07a334c31a942d7976d736fa5300cc901a13ce4ed6d3d1d2251addc3e083b

            SHA512

            34989ca31fc53c3b6e98bbb3b39d42999ce6ed62c2a32a1efe3317a2f56f8d4b2650c40abca9885a1dcfb6d111f731f12f5d97ea50e4dacb01f919497cac4eba

          • C:\Program Files\7-Zip\7z.exe
            Filesize

            577KB

            MD5

            45f6db1ec72be2ae72124871996da724

            SHA1

            859058aaee81af4e9b64f1e4308d6ec13e53e9d3

            SHA256

            c720359aeb64cad64544b51dc032579ba42c1ce337ebc58bacb0a8c61092ab5b

            SHA512

            c41395aa00a4e6d40708a7ace7f4f19c99b13c8f04e296cae41d24721388ec27e1f824e372700754ab7dbbe0d87001fb34c26e3b157e2e4b9e34cf4cc87d9619

          • C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe
            Filesize

            643KB

            MD5

            b06c23c388c6c6a3219fdaf5efaabccf

            SHA1

            ada13c3c4449d222de774ebd037078ba31d33cd2

            SHA256

            8efeb8be3a4ae59e4106e6c1d9e122d8ecb84b71cf01796f27d94ecfe80e0809

            SHA512

            aefc2fbbf660ee465ac7f174ab8f3de242c352d473a02ee96214d29a5e854e88c7ad842685bdb81698c8d51e0b597d7379c3a039e704839be748fe96a68c23b9

          • C:\Users\Admin\AppData\Local\Temp\$$a4045.bat
            Filesize

            722B

            MD5

            1fdb24c35852b2e31852e51ec2c62e30

            SHA1

            7566c7d6bde6c8cd23cee83e4570bde0d09d473e

            SHA256

            5edf710dd8f10fbeb30c644825182f962d323ce8066e31edc9040b4bafd352d7

            SHA512

            4c026849ac73e997636edcb76494f57bd1d6d44368ff6b9bbe92f0e0439065a38f705757a6f7c0906aff0359919bea4f030223a42507e85312d91f9ec93177af

          • C:\Users\Admin\AppData\Local\Temp\537d821ae20091bca9df3b89d52c5f4a5491f9e281d59fcfcdbfb6718d1af479.exe.exe
            Filesize

            14KB

            MD5

            ad782ffac62e14e2269bf1379bccbaae

            SHA1

            9539773b550e902a35764574a2be2d05bc0d8afc

            SHA256

            1c8a77db924ebeb952052334dc95add388700c02b073b07973cd8fe0a0a360b8

            SHA512

            a1e9d6316ffc55f4751090961733e98c93b2a391666ff50b50e9dea39783746e501d14127e7ee9343926976d7e3cd224f13736530354d8466ea995dab35c8dc2

          • C:\Windows\Logo1_.exe
            Filesize

            33KB

            MD5

            030c9aac5dcb76c5a06bf0ac2cdecfb0

            SHA1

            18f137b0ad656c47efffbc845449b5e80294bfd2

            SHA256

            815990d99ef2e24393dfdaac82ed03ab38096386d327ae3a8f670c63e02dbf79

            SHA512

            4db5e2a3c0e3d70003437fd15eebe90bb4574450b600bcac0fb52842c646fe5c098912ad479cf3ec4a490c985ba837e37ed5bdeec5db2ca57b16360290e0cce5

          • F:\$RECYCLE.BIN\S-1-5-21-3726321484-1950364574-433157660-1000\_desktop.ini
            Filesize

            9B

            MD5

            e7957b9f3d9556c996418169821a7993

            SHA1

            b7028de0f91d2e50a8d5f6d23613331a2784a142

            SHA256

            71a21a13d7822776d52d9a6146651dc9155db9f0bfbd978acf43d12dea2a8539

            SHA512

            72bc8552047095449fa4c3c21300183acfc7b33e6ab69c11435542e2862cb9e896bbfdedaeb97ec6edac8ed68220507a302d1ed2217624c97f6e9a83c0d3a285

          • memory/4080-11-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/4080-18-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/4080-5224-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/4080-8775-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/4664-0-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/4664-10-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB