Analysis

  • max time kernel
    122s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    05/11/2023, 18:02

General

  • Target

    NEAS.902ffaf1351786f248e1468736ac30b0_JC.exe

  • Size

    249KB

  • MD5

    902ffaf1351786f248e1468736ac30b0

  • SHA1

    eb913b4353964738edc056400caf9045d734dc0a

  • SHA256

    010d87e9ec6146dc8c852099fd3b01085312c4ad2e1bd9031b812c547d663562

  • SHA512

    727c30fe96db5645c699e46dba3ca0c26ee1ae5bb672bb33273b5f4983d12d2f2733bbea908f97eb213ed32b916c5cb0a00aac8c80d572f4933e81f7728fbda3

  • SSDEEP

    6144:8nOsarUet4nM8nvljgd+86ZkjVlFniTqQCSDyigAo7K+2GKO7:8nOfrUeANnvljXjWjTQYNh7K+2G17

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.902ffaf1351786f248e1468736ac30b0_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.902ffaf1351786f248e1468736ac30b0_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2304
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\AA34.tmp\1.bat" "C:\Users\Admin\AppData\Local\Temp\NEAS.902ffaf1351786f248e1468736ac30b0_JC.exe""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1592
      • C:\Windows\SysWOW64\iexpress.exe
        iexpress /n /q /m C:\Users\Admin\AppData\Local\Temp\popup.sed
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2656
        • C:\Windows\SysWOW64\makecab.exe
          C:\Windows\SysWOW64\makecab.exe /f "~%TargetName%.DDF"
          4⤵
            PID:2900

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\AA34.tmp\1.bat

            Filesize

            1KB

            MD5

            02dba5f37067292355c6d01a57d4ef48

            SHA1

            7c67ab3f99fbf7a53018dd295d2968c525db83d9

            SHA256

            8b74c812ba9e6c536da7edd4101e7e0dddeab8355e5aff095dd31b3f00560242

            SHA512

            12201f949ee3198c8f4b39cc8edf90a114ecf42ddd5383ed0b87e4c78053cd517786dc7af83557e63a0483af74f4c0117d5568441ae761ff6958e758704d602a

          • C:\Users\Admin\AppData\Local\Temp\AA34.tmp\1.bat

            Filesize

            1KB

            MD5

            02dba5f37067292355c6d01a57d4ef48

            SHA1

            7c67ab3f99fbf7a53018dd295d2968c525db83d9

            SHA256

            8b74c812ba9e6c536da7edd4101e7e0dddeab8355e5aff095dd31b3f00560242

            SHA512

            12201f949ee3198c8f4b39cc8edf90a114ecf42ddd5383ed0b87e4c78053cd517786dc7af83557e63a0483af74f4c0117d5568441ae761ff6958e758704d602a

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

            Filesize

            249KB

            MD5

            58bd7b5737ace5e6bca2e0d1c35b01d9

            SHA1

            69bbf03fa51f4839ac6bcbeddc397ac1a1053e04

            SHA256

            0d846e3e80ac1feb07dde0cac64610258b70d2a4af690777487aabe4600940a4

            SHA512

            6abbee76b88232a7c78bfa03a4adaa179321018d69c25098b05f19a54f7162109a1306775df98323902e70f08e23e6712d368508bd482ad3d4bc438c64cea8a7

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

            Filesize

            249KB

            MD5

            58bd7b5737ace5e6bca2e0d1c35b01d9

            SHA1

            69bbf03fa51f4839ac6bcbeddc397ac1a1053e04

            SHA256

            0d846e3e80ac1feb07dde0cac64610258b70d2a4af690777487aabe4600940a4

            SHA512

            6abbee76b88232a7c78bfa03a4adaa179321018d69c25098b05f19a54f7162109a1306775df98323902e70f08e23e6712d368508bd482ad3d4bc438c64cea8a7

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

            Filesize

            724B

            MD5

            c3ca008abd6997c4b036a7e8be75cb2c

            SHA1

            05f7a3527bb04c691b08f040f562582035398829

            SHA256

            29ef6bf47dcc8c67f1abe1b269d3518d6a4ebe125daa1ea460779638cb9782a3

            SHA512

            bee0baf3cb83144239077f99f5ca2a6ca7b618f7f51a53e03613ae697e8bc76fa28f5d006296b469be8e1fffeeb35668b5fe87b260b1380cc003815ea9efb083