Analysis

  • max time kernel
    157s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 23:02

General

  • Target

    c8f4b4715d7928b3f8ae4754c83028bc01567b0d34445504f8314674c187303b.exe

  • Size

    512KB

  • MD5

    d501f490454e681d8bbd985b291a72c5

  • SHA1

    ec2c3e79469f971707dd5052acef59c6250d3c2a

  • SHA256

    c8f4b4715d7928b3f8ae4754c83028bc01567b0d34445504f8314674c187303b

  • SHA512

    0238738c379bbeee838b31ae2c15be91445eb271bd0a47ab5d41b1b06cfe88158e61dee750f2e17dd950d87b51552bac45393797d09a5c1eb860775a6b05c6d5

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4R:0+h9OY70z+warul3E4R

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 5 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\c8f4b4715d7928b3f8ae4754c83028bc01567b0d34445504f8314674c187303b.exe
    "C:\Users\Admin\AppData\Local\Temp\c8f4b4715d7928b3f8ae4754c83028bc01567b0d34445504f8314674c187303b.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:1612
    • C:\Users\Admin\AppData\Local\Temp\n6042\s6042.exe
      "C:\Users\Admin\AppData\Local\Temp\n6042\s6042.exe" 6fa62493de1c922b7991e5d2LS5B2AvRw5o9P8zhMVWt0xF23IgjaSeXQnA0rWSn+PaIy0cw7XrLV6+x0l7bOv//phn7yzfqaTG0ssN9wSV4e2gRDqAfEIwMry5EZQSG8LSM3VSIi4+a7GTXE2Jfu0rJ6zCyqG1rXi07xtfd9yy7LN+x /v "C:\Users\Admin\AppData\Local\Temp\c8f4b4715d7928b3f8ae4754c83028bc01567b0d34445504f8314674c187303b.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:2188

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n6042\s6042.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n6042\s6042.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/2188-135-0x00007FFA65820000-0x00007FFA66256000-memory.dmp

    Filesize

    10.2MB

  • memory/2188-136-0x000000000178A000-0x000000000178F000-memory.dmp

    Filesize

    20KB

  • memory/2188-137-0x000000000178A000-0x000000000178F000-memory.dmp

    Filesize

    20KB