Analysis

  • max time kernel
    91s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 22:21

General

  • Target

    b811c0e73caf6ff99e7557032b3c9e30e7ca98c47c092fb2651e1c0a56262cf3.exe

  • Size

    512KB

  • MD5

    61a06439e7735504a93ad0d4c2ea717a

  • SHA1

    751df94cf91e3d85692e222e96cdac78a9af7c0c

  • SHA256

    b811c0e73caf6ff99e7557032b3c9e30e7ca98c47c092fb2651e1c0a56262cf3

  • SHA512

    83dcb7ad8020e00edcc09298c7249c71e271a51a7a4091ec09eaeb8ebf79d7aa771e97504216383eec3f7bc5c6311422597f2e654a054b08a96593d223c35536

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4J:0+h9OY70z+warul3E4J

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 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 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b811c0e73caf6ff99e7557032b3c9e30e7ca98c47c092fb2651e1c0a56262cf3.exe
    "C:\Users\Admin\AppData\Local\Temp\b811c0e73caf6ff99e7557032b3c9e30e7ca98c47c092fb2651e1c0a56262cf3.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Loads dropped DLL
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Users\Admin\AppData\Local\Temp\n7683\s7683.exe
      "C:\Users\Admin\AppData\Local\Temp\n7683\s7683.exe" bc3182e3bf904e87f9b22a81QCtDA+P8eOfgKmsQ7MuNdR9rFbGCtrFi0fdex4wtHY3gSNOZ5WL4ToxtdxJU5jrhbqievFxgE3l9LwvZFalH1L924MxU+YuyaAAQmTIBbavIsm5YQSiawFdNYGjchEW+3iOp+a6w0ikiqMlN/Z2WmAox /v "C:\Users\Admin\AppData\Local\Temp\b811c0e73caf6ff99e7557032b3c9e30e7ca98c47c092fb2651e1c0a56262cf3.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:948

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n7683\s7683.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n7683\s7683.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n7683\s7683.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n7683\s7683.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n7683\s7683.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n7683\s7683.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/948-59-0x0000000000000000-mapping.dmp

  • memory/948-62-0x000007FEF3410000-0x000007FEF3E33000-memory.dmp

    Filesize

    10.1MB

  • memory/948-63-0x000007FEF2370000-0x000007FEF3406000-memory.dmp

    Filesize

    16.6MB

  • memory/948-64-0x00000000009B6000-0x00000000009D5000-memory.dmp

    Filesize

    124KB

  • memory/948-65-0x000007FEED940000-0x000007FEEE7CF000-memory.dmp

    Filesize

    14.6MB

  • memory/948-66-0x00000000009B6000-0x00000000009D5000-memory.dmp

    Filesize

    124KB

  • memory/948-67-0x000007FEF19D0000-0x000007FEF1CBA000-memory.dmp

    Filesize

    2.9MB

  • memory/948-68-0x00000000009B6000-0x00000000009D5000-memory.dmp

    Filesize

    124KB

  • memory/1968-54-0x0000000075141000-0x0000000075143000-memory.dmp

    Filesize

    8KB