Analysis

  • max time kernel
    152s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    21-03-2023 14:42

General

  • Target

    723e7f0611944c13a36874c4567eeeafc1dff1bd7228414562c5544c6aa761b7.exe

  • Size

    3.5MB

  • MD5

    7fe97c1ef6fbf00093805ec6bcbd2676

  • SHA1

    494d23591eccdd8115208b0f78a7a1946d2706f6

  • SHA256

    723e7f0611944c13a36874c4567eeeafc1dff1bd7228414562c5544c6aa761b7

  • SHA512

    2e722249ddc85d8e493148395ba344560a5e04f9cfd753a96b773fd940f4974437f153ba803aa173af61682ff3793b9cf5a84b9a12d8f249c6558adc920c5b76

  • SSDEEP

    49152:AM3mNXOGX5f3jpePSFludHU6xUx4+2DDJEq:AKmNX9XB3jpePSF0BNUx4+2D9T

Malware Config

Signatures

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Themida packer 7 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\723e7f0611944c13a36874c4567eeeafc1dff1bd7228414562c5544c6aa761b7.exe
    "C:\Users\Admin\AppData\Local\Temp\723e7f0611944c13a36874c4567eeeafc1dff1bd7228414562c5544c6aa761b7.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\Program Files (x86)\PowerControl\PowerControl_Svc.exe" /tn "PowerControl HR" /sc HOURLY /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:884

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1612-54-0x00000000000F0000-0x00000000004B5000-memory.dmp
    Filesize

    3.8MB

  • memory/1612-55-0x00000000000F0000-0x00000000004B5000-memory.dmp
    Filesize

    3.8MB

  • memory/1612-56-0x00000000000F0000-0x00000000004B5000-memory.dmp
    Filesize

    3.8MB

  • memory/1612-57-0x00000000000F0000-0x00000000004B5000-memory.dmp
    Filesize

    3.8MB

  • memory/1612-58-0x00000000000F0000-0x00000000004B5000-memory.dmp
    Filesize

    3.8MB

  • memory/1612-59-0x00000000000F0000-0x00000000004B5000-memory.dmp
    Filesize

    3.8MB

  • memory/1612-65-0x00000000000F0000-0x00000000004B5000-memory.dmp
    Filesize

    3.8MB