Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2024, 19:14

General

  • Target
    aa52d2b35d0a5669a54193a76d9fe9e1.exe
  • Size 1.7MB
  • Sample240107-xxsfpscbgp
  • SHA256 f00978e8456694b3548f25dde8b524ce6e4b0975494849cc35b88ada3f461111
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • metasploit

Version
  • encoder/call4_dword_xor

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 12 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Program Files directory 7 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 58 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa52d2b35d0a5669a54193a76d9fe9e1.exe
    "C:\Users\Admin\AppData\Local\Temp\aa52d2b35d0a5669a54193a76d9fe9e1.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2184
    • C:\Windows\WinInet.exe
      "C:\Windows\WinInet.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4256
      • C:\Windows\WinInet.exe
        C:\Windows\WinInet.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:2180
        • C:\Program Files (x86)\Common Files\System\msn_kilo.exe
          "C:\Program Files (x86)\Common Files\System\msn_kilo.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Drops file in Program Files directory
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1968
    • C:\Windows\em.exe
      "C:\Windows\em.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:944
    • C:\Windows\emo.exe
      "C:\Windows\emo.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4488
    • C:\Windows\l33t.exe
      "C:\Windows\l33t.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4484
      • C:\Users\Admin\AppData\Local\Temp\explorer.exe
        "C:\Users\Admin\AppData\Local\Temp\explorer.exe"
        3⤵
        • Executes dropped EXE
        PID:1388
    • C:\Windows\gf.exe
      "C:\Windows\gf.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3452
      • C:\Users\Admin\AppData\Local\Temp\explorer.exe
        "C:\Users\Admin\AppData\Local\Temp\explorer.exe"
        3⤵
        • Executes dropped EXE
        PID:2664
  • C:\Program Files (x86)\Common Files\System\msn_kilo.exe
    "C:\Program Files (x86)\Common Files\System\msn_kilo.exe"
    1⤵
    • Modifies firewall policy service
    • Executes dropped EXE
    • Adds Run key to start application
    • Drops file in Program Files directory
    PID:4572
  • C:\Windows\em.exe
    C:\Windows\em.exe
    1⤵
    • Executes dropped EXE
    PID:4640
  • C:\Windows\emo.exe
    C:\Windows\emo.exe
    1⤵
    • Executes dropped EXE
    PID:2012

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        msn_kilo.exe

        • Path C:\Program Files (x86)\Common Files\System\msn_kilo.exe
        • Size 324KB
        • SHA256 e45c5797d8a466ed1c85e9828593a2c872fd90eab1af7d1a98898e3fba856f5b
        • MD5 SHA1 SHA512 SSDEEP

        msn_kilo.exe

        • Path C:\Program Files (x86)\Common Files\System\msn_kilo.exe
        • Size 407KB
        • SHA256 c0121177bb8e342f6d11ff759d4279212f060b459b45685ee269bc4c4fd31249
        • MD5 SHA1 SHA512 SSDEEP

        msn_kilo.exe

        • Path C:\Program Files (x86)\Common Files\System\msn_kilo.exe
        • Size 312KB
        • SHA256 25f09dcbd4c627d66289af56553903bd24e3872354e9711949fd3829c8fe8902
        • MD5 SHA1 SHA512 SSDEEP

        explorer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\explorer.exe
        • Size 74KB
        • SHA256 274273225883f642a2fca3c10b2df968c4c407569a08ec9c6d36519db5beedee
        • MD5 SHA1 SHA512 SSDEEP

        explorer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\explorer.exe
        • Size 68KB
        • SHA256 6678ab447170a6e259709561655a6524aa5abae2624ac938c82208d233e5b89d
        • MD5 SHA1 SHA512 SSDEEP

        explorer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\explorer.exe
        • Size 1KB
        • SHA256 a87f222692576700ee5b2d129e86406601e18f59c0603ea1ae7f23187d1b9d43
        • MD5 SHA1 SHA512

        kernel23.DLL

        • Path C:\Windows\SysWOW64\kernel23.DLL
        • Size 387KB
        • SHA256 3ff1e6238191f49a3f3f5584471daaf8aed3707b4bd56b0a44ad48ebfde6051d
        • MD5 SHA1 SHA512 SSDEEP

        kernel23.dll

        • Path C:\Windows\SysWOW64\kernel23.dll
        • Size 312KB
        • SHA256 b307f990145e4e368027f209758bc47ca1599012ddf522df9feccb3aae80f1b8
        • MD5 SHA1 SHA512 SSDEEP

        kernel23.dll

        • Path C:\Windows\SysWOW64\kernel23.dll
        • Size 258KB
        • SHA256 2954f6802ce14b1c410d450c7238f350cf15d442b22ee98be67b18db7fba3fe0
        • MD5 SHA1 SHA512 SSDEEP

        kernel23.dll

        • Path C:\Windows\SysWOW64\kernel23.dll
        • Size 208KB
        • SHA256 de91a42c76b4b9098e0b4f2dee23b42d4fce7c75d80903c577e0f774c5689ae8
        • MD5 SHA1 SHA512 SSDEEP

        kernel23.dll

        • Path C:\Windows\SysWOW64\kernel23.dll
        • Size 131KB
        • SHA256 78a6294679b7bc9134377fe431f9cb6412ecc3b572256021f82754dfc165aaac
        • MD5 SHA1 SHA512 SSDEEP

        WinInet.exe

        • Path C:\Windows\WinInet.exe
        • Size 332KB
        • SHA256 0e86e6275625693fb2f21ca252b79cb1b300cc3aa30e1b895ae54f57b3414330
        • MD5 SHA1 SHA512 SSDEEP

        WinInet.exe

        • Path C:\Windows\WinInet.exe
        • Size 394KB
        • SHA256 5b8c4bebc539b32342720dbc388815a854c0029ba069f1042a63a4d89e37a8c9
        • MD5 SHA1 SHA512 SSDEEP

        WinInet.exe

        • Path C:\Windows\WinInet.exe
        • Size 318KB
        • SHA256 47609a8e3dcae8f5c559e58677c07473b2c3a0ab701c557862f92c1da8edc601
        • MD5 SHA1 SHA512 SSDEEP

        WinInet.exe

        • Path C:\Windows\WinInet.exe
        • Size 711KB
        • SHA256 13e702af9f89c03357ec3b51a553d48a7b428703a629a82c123b1c0f620861a6
        • MD5 SHA1 SHA512 SSDEEP

        em.exe

        • Path C:\Windows\em.exe
        • Size 185KB
        • SHA256 2b29b3be908a0e588e2c3d79806dc92ef29c0b3f6a81393a6b202786bde0317d
        • MD5 SHA1 SHA512 SSDEEP

        em.exe

        • Path C:\Windows\em.exe
        • Size 14KB
        • SHA256 23c4fabb0ebbe0c9894b3503d160ef151734cabfecf5d5634df846d6b663a821
        • MD5 SHA1 SHA512 SSDEEP

        em.exe

        • Path C:\Windows\em.exe
        • Size 7KB
        • SHA256 d11e3e2c4db0d29a3b05961eef9923de86fd1a63b7652775a2cd2e1853cf3b0c
        • MD5 SHA1 SHA512 SSDEEP

        emo.exe

        • Path C:\Windows\emo.exe
        • Size 144KB
        • SHA256 5dcd8204465591fe4d62c5c57b6362c8c2fa319f045cc509b2fa60036bf6405b
        • MD5 SHA1 SHA512 SSDEEP

        emo.exe

        • Path C:\Windows\emo.exe
        • Size 110KB
        • SHA256 3f7527c8f75a0a207c054c1b00659f1b5a19e752fe8de29f7a126cb563b99d55
        • MD5 SHA1 SHA512 SSDEEP

        emo.exe

        • Path C:\Windows\emo.exe
        • Size 80KB
        • SHA256 634801bc622679d81ca64ddfa2329e273c7aa850344be6564772eef442f08bb8
        • MD5 SHA1 SHA512 SSDEEP

        emo.exe

        • Path C:\Windows\emo.exe
        • Size 85KB
        • SHA256 4e821f18b85bce113af544331598b07453124a707638bb083b9b5e83c513ce6c
        • MD5 SHA1 SHA512 SSDEEP

        gf.exe

        • Path C:\Windows\gf.exe
        • Size 46KB
        • SHA256 0f2f6a952b7d69d92f9cd6695838b5232f0ff6c7c94081bb16dc21564d58dc3b
        • MD5 SHA1 SHA512 SSDEEP

        gf.exe

        • Path C:\Windows\gf.exe
        • Size 106KB
        • SHA256 f8789e77915359588e3a4bfe480ab03a804495ce2344f085e51b97584d4d678e
        • MD5 SHA1 SHA512 SSDEEP

        gf.exe

        • Path C:\Windows\gf.exe
        • Size 137KB
        • SHA256 85ed8d79ee60c4a1f9bf89825c6c432fc575cd54ff414e5f32cb4d3bdc94d1a8
        • MD5 SHA1 SHA512 SSDEEP

        l33t.exe

        • Path C:\Windows\l33t.exe
        • Size 126KB
        • SHA256 3a67c659e3709d983e4a0b5851c8e66a6d987d12ae55be63930737ccf3862ec4
        • MD5 SHA1 SHA512 SSDEEP

        memory/2012-95-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/2012-90-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/2012-89-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/2012-92-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/2012-91-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/2180-22-0x0000000000400000-0x0000000000418000-memory.dmp

        memory/2180-21-0x0000000000400000-0x0000000000418000-memory.dmp

        memory/2180-24-0x0000000000400000-0x0000000000418000-memory.dmp

        memory/2180-51-0x0000000000400000-0x0000000000418000-memory.dmp

        memory/2180-23-0x0000000000400000-0x0000000000418000-memory.dmp

        memory/2180-30-0x0000000000400000-0x0000000000418000-memory.dmp

        memory/2180-28-0x0000000000400000-0x0000000000418000-memory.dmp

        memory/3452-143-0x00007FFED9FB0000-0x00007FFEDA951000-memory.dmp

        memory/3452-140-0x0000000000E80000-0x0000000000E90000-memory.dmp

        memory/3452-137-0x00007FFED9FB0000-0x00007FFEDA951000-memory.dmp

        memory/3452-139-0x00007FFED9FB0000-0x00007FFEDA951000-memory.dmp

        memory/3452-138-0x0000000000E80000-0x0000000000E90000-memory.dmp

        memory/4484-111-0x00007FFED9FB0000-0x00007FFEDA951000-memory.dmp

        memory/4484-112-0x000000001BA00000-0x000000001BECE000-memory.dmp

        memory/4484-116-0x0000000000CF0000-0x0000000000D00000-memory.dmp

        memory/4484-110-0x0000000000CF0000-0x0000000000D00000-memory.dmp

        memory/4484-114-0x000000001B400000-0x000000001B408000-memory.dmp

        memory/4484-126-0x00007FFED9FB0000-0x00007FFEDA951000-memory.dmp

        memory/4484-115-0x000000001C130000-0x000000001C17C000-memory.dmp

        memory/4484-108-0x000000001B480000-0x000000001B526000-memory.dmp

        memory/4484-113-0x000000001BFD0000-0x000000001C06C000-memory.dmp

        memory/4484-109-0x00007FFED9FB0000-0x00007FFEDA951000-memory.dmp

        memory/4572-144-0x0000000000400000-0x0000000000418000-memory.dmp

        memory/4640-67-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/4640-73-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/4640-70-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/4640-69-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/4640-68-0x0000000000400000-0x000000000045A000-memory.dmp