Analysis

  • max time kernel
    69s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 21:43

General

  • Target

    7c17da15f316355d907b431f8830fb3f5820644a06ee47e7fed7181cf53f82e1.exe

  • Size

    512KB

  • MD5

    a09efa79aae6358822a57dec463e6d1a

  • SHA1

    c0aba57411cdd2e5202ec9b596ca2c37806959a7

  • SHA256

    7c17da15f316355d907b431f8830fb3f5820644a06ee47e7fed7181cf53f82e1

  • SHA512

    998e8218df3e151550afab3feb7e4957d6b6d21c1d33b9fa69a475c2882b6be4b8ab42d9792350e82aaa5af8ee0b8f23ccd5e4b9827907433ceb1850aeb8176f

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4f:0+h9OY70z+warul3E4f

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c17da15f316355d907b431f8830fb3f5820644a06ee47e7fed7181cf53f82e1.exe
    "C:\Users\Admin\AppData\Local\Temp\7c17da15f316355d907b431f8830fb3f5820644a06ee47e7fed7181cf53f82e1.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3724
    • C:\Users\Admin\AppData\Local\Temp\n4394\s4394.exe
      "C:\Users\Admin\AppData\Local\Temp\n4394\s4394.exe" f98052ed5b846485d64dfa70rYeKc+rULzeMNACJZFYrnF+waU3CJ3HawpHc1YusnHkFWdFwrrk+UdFpOi7z5Wx8HcpEMLaG1/N5+RaY1+hiwbuxlSYrYip656d0PdkiNR1MzGkmvo1n6CaPi5anMM01LZH5NrVzE6Xbp9yMOSqwb5j4 /v "C:\Users\Admin\AppData\Local\Temp\7c17da15f316355d907b431f8830fb3f5820644a06ee47e7fed7181cf53f82e1.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3084

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\n4394\s4394.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n4394\s4394.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/3084-135-0x00007FF82C2A0000-0x00007FF82CCD6000-memory.dmp

    Filesize

    10.2MB

  • memory/3084-136-0x000000000146A000-0x000000000146F000-memory.dmp

    Filesize

    20KB

  • memory/3084-137-0x000000000146A000-0x000000000146F000-memory.dmp

    Filesize

    20KB