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Analysis

  • max time kernel
    145s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/02/2024, 16:54

General

  • Target

    960dce369bf0ee060ce3f5c32589a081075b9ae9123a23ebf69490f4d52f1f26.exe

  • Size

    2.5MB

  • MD5

    23caf06fd127424abe806bf1a94a8074

  • SHA1

    149576b82156776b92a971c6c306a66f36b0b91b

  • SHA256

    960dce369bf0ee060ce3f5c32589a081075b9ae9123a23ebf69490f4d52f1f26

  • SHA512

    b184c1d27befdffc9ffbcff3adbc98e6d1157e6fe2c9a42bcf24ee366f05a81556570e20d1dd0d816d84e72c67be1ba123c42a7b32fac617a2287c1fde561615

  • SSDEEP

    49152:C9JUzBM3/r8AGfg1dk+Y3WOfGRF6qTeEZ/wIwrWpD/t6x:MJKBUGIPk+8HuCqTbwy/tk

Malware Config

Extracted

Family

socks5systemz

C2

http://bhygcvc.com/search/?q=67e28dd86a55a428420bf81f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f371ea771795af8e05c64bdb22f31df92d8b38e316a667d307eca743ec4c2b07b52966923b6e8ffc18c3ed90

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 19 IoCs
  • Executes dropped EXE 3 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\960dce369bf0ee060ce3f5c32589a081075b9ae9123a23ebf69490f4d52f1f26.exe
    "C:\Users\Admin\AppData\Local\Temp\960dce369bf0ee060ce3f5c32589a081075b9ae9123a23ebf69490f4d52f1f26.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Users\Admin\AppData\Local\Temp\is-MUGOK.tmp\960dce369bf0ee060ce3f5c32589a081075b9ae9123a23ebf69490f4d52f1f26.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-MUGOK.tmp\960dce369bf0ee060ce3f5c32589a081075b9ae9123a23ebf69490f4d52f1f26.tmp" /SL5="$30156,2202326,56832,C:\Users\Admin\AppData\Local\Temp\960dce369bf0ee060ce3f5c32589a081075b9ae9123a23ebf69490f4d52f1f26.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2228
      • C:\Users\Admin\AppData\Local\CD DVD Identifier\cddvdidentifier.exe
        "C:\Users\Admin\AppData\Local\CD DVD Identifier\cddvdidentifier.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2632
      • C:\Users\Admin\AppData\Local\CD DVD Identifier\cddvdidentifier.exe
        "C:\Users\Admin\AppData\Local\CD DVD Identifier\cddvdidentifier.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\CD DVD Identifier\cddvdidentifier.exe

    Filesize

    960KB

    MD5

    d0ba5249ba5c1dacd6ae3e4694219f70

    SHA1

    aa1d8d37179ef37bb13c15f7524cada302e4d145

    SHA256

    6c20dacd938af963dd662c3cd2063e8d2ccdf458728a5f6b888472c149852f17

    SHA512

    4b3ba88fea664cb4c72a0f15d800032282029aaa42ebcaa710f9c56a37ed1b38583f8ab31eabeaa4e8de565b7fd2defc399da2c1c89c84c87ab2c7037b3dfabb

  • C:\Users\Admin\AppData\Local\Temp\is-MUGOK.tmp\960dce369bf0ee060ce3f5c32589a081075b9ae9123a23ebf69490f4d52f1f26.tmp

    Filesize

    690KB

    MD5

    a1b45df2ed6b73416fdf10a62a69f8f0

    SHA1

    053d566b3d1d4ec47d4dff670611a20802b1a366

    SHA256

    0f20cd41a5d49d9324f102419045adbaa01e1bdab8f620cacd30f32290009a4d

    SHA512

    bbe1b8cd45eda9f201093970788a001d4142fe234b21e6fc992366f86a0fcc2156480394696a09cedc41381ba939966d5825582f49a90bdd089dc765fa52a8f2

  • \Users\Admin\AppData\Local\CD DVD Identifier\cddvdidentifier.exe

    Filesize

    3.0MB

    MD5

    7e21a1fbb31a2468ac84301e1b0ec8ff

    SHA1

    dd95f71ee319de5b88dcd4a2f6ebfbea2498bb73

    SHA256

    47fc6e9022b2665567d17997bf527ad2a5131f209cf23034092c1cce9e2c8f00

    SHA512

    fe4a14a38d1ad7a49bcbd36a17a14a21e69024ed96a1dcf8a7621959e805b752f269d84dfc04042f6ceb4bd9af8f183d49dc2732728e88bac512c7fe97be7bf9

  • \Users\Admin\AppData\Local\Temp\is-MUGOK.tmp\960dce369bf0ee060ce3f5c32589a081075b9ae9123a23ebf69490f4d52f1f26.tmp

    Filesize

    384KB

    MD5

    5949dd8368b9f6b1c2a0df7f759822df

    SHA1

    1c2057aef29a43a61d220e56a218da075989d43c

    SHA256

    cb90ef41a6623abe92fdd1ee5f6a2077982470f56c4cf15b825a6f179da0f3ab

    SHA512

    6acbfc35224c1c82bf4faac7f16ce2139d27b965a2b0722de4fc76caec5df6ca59c6ff243b9ee55d530b8ee67bf0ab4b7db69fb12c08f2ba065ce45d637b0d56

  • \Users\Admin\AppData\Local\Temp\is-P97H9.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-P97H9.tmp\_isetup\_isdecmp.dll

    Filesize

    19KB

    MD5

    3adaa386b671c2df3bae5b39dc093008

    SHA1

    067cf95fbdb922d81db58432c46930f86d23dded

    SHA256

    71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

    SHA512

    bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

  • \Users\Admin\AppData\Local\Temp\is-P97H9.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/2220-1-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2220-56-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2228-45-0x0000000003860000-0x0000000003B60000-memory.dmp

    Filesize

    3.0MB

  • memory/2228-60-0x0000000003860000-0x0000000003B60000-memory.dmp

    Filesize

    3.0MB

  • memory/2228-59-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/2228-8-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/2228-57-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2588-77-0x0000000002690000-0x0000000002732000-memory.dmp

    Filesize

    648KB

  • memory/2588-87-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-53-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-107-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-58-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-104-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-100-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-63-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-66-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-67-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-70-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-73-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-76-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-97-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-78-0x0000000002690000-0x0000000002732000-memory.dmp

    Filesize

    648KB

  • memory/2588-84-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-55-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-90-0x0000000002690000-0x0000000002732000-memory.dmp

    Filesize

    648KB

  • memory/2588-91-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2588-94-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2632-46-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2632-47-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2632-48-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2632-51-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB