Analysis

  • max time kernel
    136s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2022 04:54

General

  • Target

    7b898bb9d5b30e0dfc92479fb0b6143a128025ee28ed90218a2452dc30b6ebd9.exe

  • Size

    1.9MB

  • MD5

    3c76310629bf708ca48a498d881861c7

  • SHA1

    f64bea924d6ebd14f498a73eb5cd19e2e943eab7

  • SHA256

    7b898bb9d5b30e0dfc92479fb0b6143a128025ee28ed90218a2452dc30b6ebd9

  • SHA512

    f07b581b1c44afad5c0124df187cfe3721adb351de74ab357b391afa42c8eee70e4d7604856da6fdde3bb7e8842545b4f26049748b7fa5ab4a511a2c46fa82b4

Score
10/10

Malware Config

Signatures

  • suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

    suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

  • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

  • 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.

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b898bb9d5b30e0dfc92479fb0b6143a128025ee28ed90218a2452dc30b6ebd9.exe
    "C:\Users\Admin\AppData\Local\Temp\7b898bb9d5b30e0dfc92479fb0b6143a128025ee28ed90218a2452dc30b6ebd9.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:1744

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1744-54-0x0000000076C01000-0x0000000076C03000-memory.dmp
    Filesize

    8KB

  • memory/1744-55-0x0000000000400000-0x00000000008C2000-memory.dmp
    Filesize

    4.8MB

  • memory/1744-56-0x0000000077DB0000-0x0000000077F30000-memory.dmp
    Filesize

    1.5MB

  • memory/1744-57-0x0000000000400000-0x00000000008C2000-memory.dmp
    Filesize

    4.8MB

  • memory/1744-58-0x0000000000400000-0x00000000008C2000-memory.dmp
    Filesize

    4.8MB

  • memory/1744-59-0x0000000000400000-0x00000000008C2000-memory.dmp
    Filesize

    4.8MB

  • memory/1744-60-0x0000000077DB0000-0x0000000077F30000-memory.dmp
    Filesize

    1.5MB