Analysis

  • max time kernel
    111s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-10-2024 13:49

General

  • Target

    7ce70d99d892cb1dc3edeefd389c5a03a12d4aba6f0f9dff58bea59709c14802N.exe

  • Size

    798KB

  • MD5

    1454a37dd468a9be07ce8fa633a28e30

  • SHA1

    9e2645b6dcf33136c22600dce082a78b285b9627

  • SHA256

    7ce70d99d892cb1dc3edeefd389c5a03a12d4aba6f0f9dff58bea59709c14802

  • SHA512

    9fd58f84fa6c53f7d3ca8a853535024151031984fe402ba62aaa2cad87cda44cedacb26302988b0cdad258c0d216a7a3d65e469f3fa188b1e71ad9f0475d5581

  • SSDEEP

    24576:xuDXTIGaPhEYzUzA0/0v5xkGMURGxIQyAto1/r:kDjlabwz9yC5PRoJ

Malware Config

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ce70d99d892cb1dc3edeefd389c5a03a12d4aba6f0f9dff58bea59709c14802N.exe
    "C:\Users\Admin\AppData\Local\Temp\7ce70d99d892cb1dc3edeefd389c5a03a12d4aba6f0f9dff58bea59709c14802N.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\fud.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\TrialVersion.sfx.exe
        TrialVersion.sfx.exe -p123 -dC:\Users\Admin\AppData\Local\Temp
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4468
        • C:\Users\Admin\AppData\Local\Temp\RarSFX1\TrialVersion.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX1\TrialVersion.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2404
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "NTFS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC709.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1416
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "NTFS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC758.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:3276

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\TrialVersion.sfx.exe

    Filesize

    591KB

    MD5

    f72ac18b99643fa4e9cd76a98ee2e0b1

    SHA1

    ff3c116fefdcd6fb5395bd22b2a976496f74a6e8

    SHA256

    d67fd03b982b7959a1865c460fdc6a0291ff8e01b92cc3690c83339de6211308

    SHA512

    a094fc96d69e1db316b310f99076a3121d62505ea9096796829beeae7469b518a8658854e8533c1f326678b54f17b520ad9ea8d5750c35c4af2009383b8271b9

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\fud.bat

    Filesize

    35B

    MD5

    27bee04ecccc26ef9a3f7aef888ae69a

    SHA1

    0ba85f5947bb12150f07d2173a0febbfbbd12101

    SHA256

    b2a69e69060bfacfa901eb6541ea6f30ab9b501822a71e19789a1f85fd79136a

    SHA512

    5718eeea3e4820d4d7426fac0081c2767f21ca2cdccae57cf8194825601c792b558accefeeb6b547f96d09e6a41fd157d381b9e209fad45a083bcf30f6fd0175

  • C:\Users\Admin\AppData\Local\Temp\RarSFX1\TrialVersion.exe

    Filesize

    203KB

    MD5

    1216377149a106322851e020bfdd86d8

    SHA1

    9a7dc05fb2a02699e6c0d943d01d8f2f6ad24086

    SHA256

    a59eace0bdad4afba6f591924762b708442993a49267ac30380c48308cab6de7

    SHA512

    8a1638b766c25dd0f6d85247cc82aa3d521ba119aae67f14ab02f693c3d71e50dec772e4f9f1a5aeb43f3ea3c6e31913d7d04ada3cfb4c6469bc68dcb7d026fa

  • C:\Users\Admin\AppData\Local\Temp\tmpC709.tmp

    Filesize

    1KB

    MD5

    5779f7c3134d7418349e603bf2282deb

    SHA1

    24ce473589d237c2f71e58705bd462d30f5cd7d8

    SHA256

    e9e45fd9d6b5ec511bc237863068cb0f5eb4df8fb531d2564bffab99a7b6c45a

    SHA512

    1977b2a756b007b2b89f02345d0db96cc7354630137daf76d68aaae66498edec2d47dfcb9a9183532f1586fecd771a32e12f124a557903b6980b93196aea637d

  • C:\Users\Admin\AppData\Local\Temp\tmpC758.tmp

    Filesize

    1KB

    MD5

    41808f05a9aa523d0ef506d4993f1d6c

    SHA1

    5a228145decf63ebbbd673c9b7c08a86236a22d4

    SHA256

    f76bd5da395a725b5998efab9a5d3160657cf2d44a8be83fa24af6ba29acf731

    SHA512

    7cf71f8fd8dccaa8cf2c724afca3178be8b7a6e0cc6e4b44990e96413bd0dac8248e2bcfa1bb82da05efb6c4b46649722c20ce14cf4a44f1720e18732bd9246e