Analysis

  • max time kernel
    140s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2024 07:12

General

  • Target

    2a1c873470cb6a9144d857bda6bc184d9665609d16f993ecbf8b1ae6c9e6a9bd.exe

  • Size

    3.7MB

  • MD5

    0331868c98079e491814de20b55975e2

  • SHA1

    ee1b8e83e58f68ee4c20793a3450d9cb18919ccd

  • SHA256

    2a1c873470cb6a9144d857bda6bc184d9665609d16f993ecbf8b1ae6c9e6a9bd

  • SHA512

    388a010ef5d8070730c183f34c1392d69f3b057b9c29d6a8aed9924bafdf3e9b37e0def33d4cee315b111d7c292ce8067160e55aad1ab5b819366d5cace7adef

  • SSDEEP

    98304:Nf2c/GFbejH6Kd+lUNut0vNE2Qn1emYVOBewgOfHCLwCW9JzlwutCKr:yVUd+G20vNCn1BFB17iLfWKDe

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Socks5systemz family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a1c873470cb6a9144d857bda6bc184d9665609d16f993ecbf8b1ae6c9e6a9bd.exe
    "C:\Users\Admin\AppData\Local\Temp\2a1c873470cb6a9144d857bda6bc184d9665609d16f993ecbf8b1ae6c9e6a9bd.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1620
    • C:\Users\Admin\AppData\Local\Temp\is-JO9L1.tmp\2a1c873470cb6a9144d857bda6bc184d9665609d16f993ecbf8b1ae6c9e6a9bd.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-JO9L1.tmp\2a1c873470cb6a9144d857bda6bc184d9665609d16f993ecbf8b1ae6c9e6a9bd.tmp" /SL5="$5014E,3621293,54272,C:\Users\Admin\AppData\Local\Temp\2a1c873470cb6a9144d857bda6bc184d9665609d16f993ecbf8b1ae6c9e6a9bd.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2680
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" pause lerry_video_11262
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2336
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 pause lerry_video_11262
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3012
      • C:\Users\Admin\AppData\Local\Lerry Video 22.0.994\lerryvideo.exe
        "C:\Users\Admin\AppData\Local\Lerry Video 22.0.994\lerryvideo.exe" -i
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Lerry Video 22.0.994\lerryvideo.exe

    Filesize

    3.0MB

    MD5

    f9c76ded7adc537be3e13bfe51967f63

    SHA1

    62d7a9d8a29b9abf61a773ece75108cee4c4eff4

    SHA256

    f20eda919e66fcf766c95f06d291664ee8e28bb1b2e21f20c9b19411f79db325

    SHA512

    548fee9f692b1f57b6b86144ee0ba8ebff74272ef44adaecbc2a914e8f7fead959e298f2560962956fa468633814ac31a5f506edd08e00b60d2121557b6d29c1

  • C:\Users\Admin\AppData\Local\Lerry Video 22.0.994\sqlite3.dll

    Filesize

    630KB

    MD5

    e477a96c8f2b18d6b5c27bde49c990bf

    SHA1

    e980c9bf41330d1e5bd04556db4646a0210f7409

    SHA256

    16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

    SHA512

    335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

  • \Users\Admin\AppData\Local\Temp\is-2B68N.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-2B68N.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-JO9L1.tmp\2a1c873470cb6a9144d857bda6bc184d9665609d16f993ecbf8b1ae6c9e6a9bd.tmp

    Filesize

    687KB

    MD5

    1d699061670ebcb1fd0f406c11bb5ae0

    SHA1

    9c0a4c9370c3d2bc6886659b4ca85113c6f75b53

    SHA256

    209f5594ea755dec7a8f68cc61c7ced5ab8fad91d67cb1e0439fb638a7fd46e6

    SHA512

    bb1d754355fe366d018b8d1493279499ca0f425511c8bb634a732de421ad70b3368736f91d5f381a5331fb23264c03625cbcbc328c73421f051d81566f3ec536

  • memory/1620-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1620-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1620-55-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2680-54-0x0000000003390000-0x0000000003692000-memory.dmp

    Filesize

    3.0MB

  • memory/2680-10-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2680-44-0x0000000003390000-0x0000000003692000-memory.dmp

    Filesize

    3.0MB

  • memory/2680-53-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2732-58-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/2732-78-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-48-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-57-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-59-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-62-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-66-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-70-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-74-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-49-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-80-0x0000000002C00000-0x0000000002CA2000-memory.dmp

    Filesize

    648KB

  • memory/2732-86-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-90-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-94-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-98-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-102-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-106-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-111-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB

  • memory/2732-115-0x0000000000400000-0x0000000000702000-memory.dmp

    Filesize

    3.0MB