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Analysis

  • max time kernel
    122s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    05/11/2023, 09:31

General

  • Target

    NEAS.4f388aaa81838de90f9b70188a3c7c40.exe

  • Size

    249KB

  • MD5

    4f388aaa81838de90f9b70188a3c7c40

  • SHA1

    8c0bdd8ca3d1351012c96e3b659ac68868a4f75e

  • SHA256

    c33bf6dbe138bd43a16a5b01cfe548b7e893800f9d1236a262262fbe1cdc9731

  • SHA512

    2ea5b271ce14d6912d58db18dd06ca5333f0bee35e95d535656e07e74316f31013775d2b02adfe8131c8a65e670ed5744c09f38e663f73b5ee6df602f7f78fad

  • SSDEEP

    6144:8nOsarUet4nM8nvljgd+86ZkjVlFniTqQCSDyigAo7K+2GKOc:8nOfrUeANnvljXjWjTQYNh7K+2G1c

Malware Config

Signatures

  • Malware Backdoor - Berbew 2 IoCs

    Berbew is a malware infection classified as a 'backdoor' Trojan. This malicious program's primary function is to cause chain infections - it can download/install additional malware such as other Trojans, ransomware, and cryptominers.

  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.4f388aaa81838de90f9b70188a3c7c40.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.4f388aaa81838de90f9b70188a3c7c40.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\4C9A.tmp\1.bat" "C:\Users\Admin\AppData\Local\Temp\NEAS.4f388aaa81838de90f9b70188a3c7c40.exe""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1688
      • C:\Windows\SysWOW64\iexpress.exe
        iexpress /n /q /m C:\Users\Admin\AppData\Local\Temp\popup.sed
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1380
        • C:\Windows\SysWOW64\makecab.exe
          C:\Windows\SysWOW64\makecab.exe /f "~%TargetName%.DDF"
          4⤵
            PID:2704

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\4C9A.tmp\1.bat

      Filesize

      1KB

      MD5

      02dba5f37067292355c6d01a57d4ef48

      SHA1

      7c67ab3f99fbf7a53018dd295d2968c525db83d9

      SHA256

      8b74c812ba9e6c536da7edd4101e7e0dddeab8355e5aff095dd31b3f00560242

      SHA512

      12201f949ee3198c8f4b39cc8edf90a114ecf42ddd5383ed0b87e4c78053cd517786dc7af83557e63a0483af74f4c0117d5568441ae761ff6958e758704d602a

    • C:\Users\Admin\AppData\Local\Temp\4C9A.tmp\1.bat

      Filesize

      1KB

      MD5

      02dba5f37067292355c6d01a57d4ef48

      SHA1

      7c67ab3f99fbf7a53018dd295d2968c525db83d9

      SHA256

      8b74c812ba9e6c536da7edd4101e7e0dddeab8355e5aff095dd31b3f00560242

      SHA512

      12201f949ee3198c8f4b39cc8edf90a114ecf42ddd5383ed0b87e4c78053cd517786dc7af83557e63a0483af74f4c0117d5568441ae761ff6958e758704d602a

    • C:\Users\Admin\AppData\Local\Temp\popup.sed

      Filesize

      249KB

      MD5

      26ccb4043b69098526f3828d6de5cb17

      SHA1

      d1f2c23959fca4e57e93bdbb85883a926cfdc2e0

      SHA256

      28ce0ab3ffac20a4cef7d5cc9725bc544224c24660bfed3aebca5452ff99c7f0

      SHA512

      fe31f9981ad9a721839cc55493b8541b2ed1ed8af32a1687d4b81b64330bce04a3462aa06cfa529287fce9f91c893852f463c8315c2148b887e5ad61b862eba7

    • C:\Users\Admin\AppData\Local\Temp\popup.sed

      Filesize

      249KB

      MD5

      26ccb4043b69098526f3828d6de5cb17

      SHA1

      d1f2c23959fca4e57e93bdbb85883a926cfdc2e0

      SHA256

      28ce0ab3ffac20a4cef7d5cc9725bc544224c24660bfed3aebca5452ff99c7f0

      SHA512

      fe31f9981ad9a721839cc55493b8541b2ed1ed8af32a1687d4b81b64330bce04a3462aa06cfa529287fce9f91c893852f463c8315c2148b887e5ad61b862eba7

    • C:\Users\Admin\AppData\Local\Temp\~%TargetName%.DDF

      Filesize

      724B

      MD5

      c3ca008abd6997c4b036a7e8be75cb2c

      SHA1

      05f7a3527bb04c691b08f040f562582035398829

      SHA256

      29ef6bf47dcc8c67f1abe1b269d3518d6a4ebe125daa1ea460779638cb9782a3

      SHA512

      bee0baf3cb83144239077f99f5ca2a6ca7b618f7f51a53e03613ae697e8bc76fa28f5d006296b469be8e1fffeeb35668b5fe87b260b1380cc003815ea9efb083