Resubmissions

03-06-2024 05:32

240603-f8hxzaed72

Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-06-2024 00:43

General

  • Target

    5628df40dadaa39660521577b549537c23e129593a7584c55c008f62f7f6efdc.exe

  • Size

    368KB

  • MD5

    6d857a11a566aeb55a9f14ee68d12a7b

  • SHA1

    0cb7364b97ef764c1d888b547eb7815ff8a80f85

  • SHA256

    5628df40dadaa39660521577b549537c23e129593a7584c55c008f62f7f6efdc

  • SHA512

    e379dc85c39c84760c951cb13bf1f663220870eac87369854eb4983cfc89abf95fab6d0c9cd56f33c7bc6609b981f854b9a77a35cd8d4b8fbc806f62c2b99d1f

  • SSDEEP

    6144:n1qe1ISTzU66bkWmchVySqkvAH3qo0wWJC6G/SMT4FWqC:n1quIwU66b5zhVymA/XSRh

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 28 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3440
      • C:\Users\Admin\AppData\Local\Temp\5628df40dadaa39660521577b549537c23e129593a7584c55c008f62f7f6efdc.exe
        "C:\Users\Admin\AppData\Local\Temp\5628df40dadaa39660521577b549537c23e129593a7584c55c008f62f7f6efdc.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3748
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4444
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2448
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a3FC8.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1940
            • C:\Users\Admin\AppData\Local\Temp\5628df40dadaa39660521577b549537c23e129593a7584c55c008f62f7f6efdc.exe
              "C:\Users\Admin\AppData\Local\Temp\5628df40dadaa39660521577b549537c23e129593a7584c55c008f62f7f6efdc.exe"
              4⤵
              • Executes dropped EXE
              PID:1120
          • 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:4388
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1272
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:60
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:4384
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:4448
          • C:\Windows\System32\rundll32.exe
            C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
            1⤵
              PID:4848

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              577KB

              MD5

              447c2cc1d1c31d3beda8c37c6ea8fb29

              SHA1

              9aee3aeb7b734fcbce6483f0c127897a34229a21

              SHA256

              9f1cf772de334ec803a4d6da70c9ae0a2b5028f75ee2e3cdc52a10b09ad1b854

              SHA512

              31cb45cbeb908247e1de671de35363e032cd40276d564bed3fd305fd8c87c9f4476bdd39563978cb1854e28f180499654d5ab5b98aa6c6762674b0df8ac4f05d

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

              Filesize

              643KB

              MD5

              9363a720e098b38389b25a7b18cfbcdd

              SHA1

              7b5e835b22262b47e6042e7aadecc67dac05f7db

              SHA256

              10579b661dade8697f252204f241952eb2029ea6978165f9336fd60a72b3205e

              SHA512

              564b873358ebe4d4d194b924e9934cb5c1666df901db2556e8cbab8276f8c4380a5bee157cc8eb2063fe0f48a1d0dc1cf339d3d3040d764c974e1c46b0870f88

            • C:\Users\Admin\AppData\Local\Temp\$$a3FC8.bat

              Filesize

              722B

              MD5

              657cb6f79835d370b8b19696f90e5163

              SHA1

              bc2c363331b2c5439a121059f7bdbe6ac36fabca

              SHA256

              d31ef7d0d5e0450bcf6a3719c2305f5255441ed5e4fd42c1ce0e8291657ef873

              SHA512

              7824ce2bdfc36f615001cbb6a07dd09b16b7adbfe4d424f4af95d68cb9444b9675d533898c95b97c272fb47b9a67961b18d4bb0a09863fc11732e0b763b7ec43

            • C:\Users\Admin\AppData\Local\Temp\5628df40dadaa39660521577b549537c23e129593a7584c55c008f62f7f6efdc.exe.exe

              Filesize

              335KB

              MD5

              40ac62c087648ccc2c58dae066d34c98

              SHA1

              0e87efb6ddfe59e534ea9e829cad35be8563e5f7

              SHA256

              482c4c1562490e164d5f17990253373691aa5eab55a81c7f890fe9583a9ea916

              SHA512

              0c1ff13ff88409d54fee2ceb07fe65135ce2a9aa6f8da51ac0158abb2cfbb3a898ef26f476931986f1367622f21a7c0b0e742d0f4de8be6e215596b0d88c518f

            • C:\Windows\Logo1_.exe

              Filesize

              33KB

              MD5

              005782dec3941236334d871c5153fbf3

              SHA1

              c973a6811e47002ccb7c48911cf58d9b0f15c990

              SHA256

              def563a72f35ff1bd5d55bb4d8db6b098975b14f9f0a1e6c099415dda5887103

              SHA512

              235604f421d5596f55f22ce59116a6975c527b433c26630c8a0aed7089710a9b4a781db2eae71eb93e7917ed4cf154554bbf37fa2ea4c7c0aaaa7737d96f2933

            • F:\$RECYCLE.BIN\S-1-5-21-1162180587-977231257-2194346871-1000\_desktop.ini

              Filesize

              8B

              MD5

              378d822ce12583d0d584184af22d1d77

              SHA1

              c062ac770b028df6db676099e02f09fc2f77b171

              SHA256

              1ad01f8e46c86dfa34468e306eabe54b58d56134130b53ea7677961e3baaf6c7

              SHA512

              23cf7b916de734c6bb6fd3b2beee21f3e82bc95e93d8662dca818d7cf13602706f22671dce61388b2a7e0b613c07c70512331c4132759b16cf438cb1750bc397

            • memory/3748-0-0x0000000000400000-0x000000000043D000-memory.dmp

              Filesize

              244KB

            • memory/3748-8-0x0000000000400000-0x000000000043D000-memory.dmp

              Filesize

              244KB

            • memory/4388-10-0x0000000000400000-0x000000000043D000-memory.dmp

              Filesize

              244KB

            • memory/4388-17-0x0000000000400000-0x000000000043D000-memory.dmp

              Filesize

              244KB

            • memory/4388-3291-0x0000000000400000-0x000000000043D000-memory.dmp

              Filesize

              244KB

            • memory/4388-8649-0x0000000000400000-0x000000000043D000-memory.dmp

              Filesize

              244KB