Analysis

  • max time kernel
    133s
  • max time network
    188s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 22:20

General

  • Target

    41f15abb6725a0d8b3eb5b1e2a75a413cf6bef2a474f550d8bb731c491040fc7.exe

  • Size

    512KB

  • MD5

    66a7f3337e3ecfd680857e0464ae1050

  • SHA1

    ca07659cd184b61b21fd494bd9779232aad5eb19

  • SHA256

    41f15abb6725a0d8b3eb5b1e2a75a413cf6bef2a474f550d8bb731c491040fc7

  • SHA512

    9bb085a11ea846cdfd9667284ef2d2582214574140816a675ae36ec9c18e6008308316281d442a460f57bdd49a4bf16d03f0f1e6d8bf8bc7b3771c89d1f3a8af

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4A:0+h9OY70z+warul3E4A

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\41f15abb6725a0d8b3eb5b1e2a75a413cf6bef2a474f550d8bb731c491040fc7.exe
    "C:\Users\Admin\AppData\Local\Temp\41f15abb6725a0d8b3eb5b1e2a75a413cf6bef2a474f550d8bb731c491040fc7.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:1712
    • C:\Users\Admin\AppData\Local\Temp\n7343\s7343.exe
      "C:\Users\Admin\AppData\Local\Temp\n7343\s7343.exe" d25908199580684646298bf9T6KfYf+oD+PUf27FaOxDEVRjXTAWtRUKqCSwIqtMr4eakCDci+8R/md9TV9Yo7lSmz+gDV37XQ1hbtmDR1eUe//kusiLYtS9IEqfbA/FVwOIv/UMWb7PVsjghgKf72fXOf35LPsH1u6+BT9OXhYAq8v4 /v "C:\Users\Admin\AppData\Local\Temp\41f15abb6725a0d8b3eb5b1e2a75a413cf6bef2a474f550d8bb731c491040fc7.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1960

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n7343\s7343.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n7343\s7343.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n7343\s7343.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n7343\s7343.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n7343\s7343.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n7343\s7343.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1712-54-0x00000000760C1000-0x00000000760C3000-memory.dmp

    Filesize

    8KB

  • memory/1960-59-0x0000000000000000-mapping.dmp

  • memory/1960-62-0x000007FEF3450000-0x000007FEF3E73000-memory.dmp

    Filesize

    10.1MB

  • memory/1960-63-0x000007FEF23B0000-0x000007FEF3446000-memory.dmp

    Filesize

    16.6MB

  • memory/1960-64-0x000007FEFB7B1000-0x000007FEFB7B3000-memory.dmp

    Filesize

    8KB

  • memory/1960-65-0x0000000002056000-0x0000000002075000-memory.dmp

    Filesize

    124KB

  • memory/1960-66-0x000007FEEDC40000-0x000007FEEEACF000-memory.dmp

    Filesize

    14.6MB

  • memory/1960-67-0x000007FEF18C0000-0x000007FEF1BAA000-memory.dmp

    Filesize

    2.9MB

  • memory/1960-68-0x0000000002056000-0x0000000002075000-memory.dmp

    Filesize

    124KB