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Analysis

  • max time kernel
    147s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/10/2023, 17:32

General

  • Target

    NEAS.f0d0ab5855bb495d99d1e138ae4896b0.exe

  • Size

    127KB

  • MD5

    f0d0ab5855bb495d99d1e138ae4896b0

  • SHA1

    5d5e8774da0556029e48d3ba2142a7d02109abf5

  • SHA256

    50d0e02307b3ba6d83bd28efb935b37c4f4dc7edb1b8e9cbdb3082d241a1e7b4

  • SHA512

    ae5854b4ce92395c7d656f6ff97b9e831327e0fded2a98d78d858d9cac373fa0851d2084db94375c2924407e979e30e3f7e7abd590196bcb02ac3d2820bfd692

  • SSDEEP

    3072:dOjWuyt0ZHqsXOKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPPL:dIH9OKofHfHTXQLzgvnzHPowYbvrjD/O

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 3 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 19 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Maps connected drives based on registry 3 TTPs 6 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.f0d0ab5855bb495d99d1e138ae4896b0.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.f0d0ab5855bb495d99d1e138ae4896b0.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1288
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3568
      • C:\Windows\SysWOW64\smnss.exe
        C:\Windows\system32\smnss.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Maps connected drives based on registry
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:5000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\ctfmen.exe

    Filesize

    4KB

    MD5

    1e15e77505ad8c1d1f256ec25a571647

    SHA1

    8359d255f907dedb8056f6a9c8c55a356f6ce59a

    SHA256

    38e03eaffc783dad0531374bb0f680d4d42151520892836e98f6df3bb104d1da

    SHA512

    57985730a421fae7a8fea1bcd3eeced829e74ed35e9425f69d476fd85902a99f76750bb5296145d2bbc9212d09b15bf9cfc753ad33aa1662c30497b81e2f5b83

  • C:\Windows\SysWOW64\ctfmen.exe

    Filesize

    4KB

    MD5

    1e15e77505ad8c1d1f256ec25a571647

    SHA1

    8359d255f907dedb8056f6a9c8c55a356f6ce59a

    SHA256

    38e03eaffc783dad0531374bb0f680d4d42151520892836e98f6df3bb104d1da

    SHA512

    57985730a421fae7a8fea1bcd3eeced829e74ed35e9425f69d476fd85902a99f76750bb5296145d2bbc9212d09b15bf9cfc753ad33aa1662c30497b81e2f5b83

  • C:\Windows\SysWOW64\grcopy.dll

    Filesize

    127KB

    MD5

    37448e0d5293b22c4b2e621d1d057af8

    SHA1

    cb4a1989b2df89f3b870726fbcba4f2aec1fe081

    SHA256

    5812c6bfec4693c929a8f79928aa7942f438875979f62b862563c7a91b406ff2

    SHA512

    eb3c80a6e82bee8c93844826d9384fd7cd9bf341ac2ab52b8fb9707c0586938ff8dc5ded4d2270bb3709b56182ad1c80a0a076ceaaf127f60fa8f9bd5df5a266

  • C:\Windows\SysWOW64\grcopy.dll

    Filesize

    127KB

    MD5

    37448e0d5293b22c4b2e621d1d057af8

    SHA1

    cb4a1989b2df89f3b870726fbcba4f2aec1fe081

    SHA256

    5812c6bfec4693c929a8f79928aa7942f438875979f62b862563c7a91b406ff2

    SHA512

    eb3c80a6e82bee8c93844826d9384fd7cd9bf341ac2ab52b8fb9707c0586938ff8dc5ded4d2270bb3709b56182ad1c80a0a076ceaaf127f60fa8f9bd5df5a266

  • C:\Windows\SysWOW64\satornas.dll

    Filesize

    183B

    MD5

    d05ffbb0a9eae2b38e7ec5271395ddcc

    SHA1

    e1497c153826e32f88cdc76e53305a0fdd33ab5e

    SHA256

    99810df455b81a770053e5d29f0de8cf1c13c5459b8eb4a811d42ec8a65cd489

    SHA512

    ef4f968afee3f22c51d31f193eff1594d41e2ca8165eb2e39dd43390347575063dce283ab7185bd33447864948cc114582fe184f3b583ab4f3c4d60ccd7d3b85

  • C:\Windows\SysWOW64\shervans.dll

    Filesize

    8KB

    MD5

    01c4eeffa2602980daf9fff2ab8f44c8

    SHA1

    bc6b207ff2a1be92545af7b90b028e593f8bd357

    SHA256

    e447b5cc48d88a3c1e4ea0c2c2460b2c081be7c285828172c4a9166140e6f577

    SHA512

    a56b5fc845e713ded71e90fa929530bce7313a9537fdf27d363153827eb2b8ef74656022314c80601fe9431d761be98ac40b731513665897751e3e1a11db13fe

  • C:\Windows\SysWOW64\shervans.dll

    Filesize

    8KB

    MD5

    01c4eeffa2602980daf9fff2ab8f44c8

    SHA1

    bc6b207ff2a1be92545af7b90b028e593f8bd357

    SHA256

    e447b5cc48d88a3c1e4ea0c2c2460b2c081be7c285828172c4a9166140e6f577

    SHA512

    a56b5fc845e713ded71e90fa929530bce7313a9537fdf27d363153827eb2b8ef74656022314c80601fe9431d761be98ac40b731513665897751e3e1a11db13fe

  • C:\Windows\SysWOW64\shervans.dll

    Filesize

    8KB

    MD5

    01c4eeffa2602980daf9fff2ab8f44c8

    SHA1

    bc6b207ff2a1be92545af7b90b028e593f8bd357

    SHA256

    e447b5cc48d88a3c1e4ea0c2c2460b2c081be7c285828172c4a9166140e6f577

    SHA512

    a56b5fc845e713ded71e90fa929530bce7313a9537fdf27d363153827eb2b8ef74656022314c80601fe9431d761be98ac40b731513665897751e3e1a11db13fe

  • C:\Windows\SysWOW64\smnss.exe

    Filesize

    127KB

    MD5

    37448e0d5293b22c4b2e621d1d057af8

    SHA1

    cb4a1989b2df89f3b870726fbcba4f2aec1fe081

    SHA256

    5812c6bfec4693c929a8f79928aa7942f438875979f62b862563c7a91b406ff2

    SHA512

    eb3c80a6e82bee8c93844826d9384fd7cd9bf341ac2ab52b8fb9707c0586938ff8dc5ded4d2270bb3709b56182ad1c80a0a076ceaaf127f60fa8f9bd5df5a266

  • C:\Windows\SysWOW64\smnss.exe

    Filesize

    127KB

    MD5

    37448e0d5293b22c4b2e621d1d057af8

    SHA1

    cb4a1989b2df89f3b870726fbcba4f2aec1fe081

    SHA256

    5812c6bfec4693c929a8f79928aa7942f438875979f62b862563c7a91b406ff2

    SHA512

    eb3c80a6e82bee8c93844826d9384fd7cd9bf341ac2ab52b8fb9707c0586938ff8dc5ded4d2270bb3709b56182ad1c80a0a076ceaaf127f60fa8f9bd5df5a266

  • memory/1288-23-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/1288-22-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/1288-0-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/1288-12-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/3568-30-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3568-21-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/5000-27-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/5000-35-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/5000-37-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/5000-38-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB