Overview

overview

10

Static

static

b63f81fb0b...53.exe

windows7-x64

10

b63f81fb0b...53.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    152s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 17:20

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General

  • Target

    b63f81fb0b48d79ef494615e688a75a395b50b1013487a669c1e296724f20553.exe

  • Size

    276KB

  • MD5

    42ec7c24584729d3f6c977456a05d8f0

  • SHA1

    4898b07fff5acf4855dcb00e3335cc6e20b67a49

  • SHA256

    b63f81fb0b48d79ef494615e688a75a395b50b1013487a669c1e296724f20553

  • SHA512

    4d703f1fea0954767fab3f6896b40baa3c02554058a159bb262a27ecf484059713595468b54f14c18521a60a2600eb3de72154c41a15314012ad914216d750a4

  • SSDEEP

    6144:y5wavQHcZQ2hqU+6ONGn0BbjvwC1SL3HAijW46BC:y5wavmcZQ2hqU+VNGn0RjvwC1SxjW46B

Score
10/10
evasionpersistence

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
    evasion
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 28 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b63f81fb0b48d79ef494615e688a75a395b50b1013487a669c1e296724f20553.exe
    "C:\Users\Admin\AppData\Local\Temp\b63f81fb0b48d79ef494615e688a75a395b50b1013487a669c1e296724f20553.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3960
    • C:\Users\Admin\dkqub.exe
      "C:\Users\Admin\dkqub.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2492

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\dkqub.exe
    Filesize

    276KB

    MD5

    94264c22d0511e7ef216dfb6ccfb2cfb

    SHA1

    0d913cc7de7eed7e49e3253f5c950b1f224ac383

    SHA256

    f255d114284ca4e2c74b089604eea71b492eb1005360f47eee68a3bec8284a76

    SHA512

    f4e12f659380045808c210a511f2e3e31adc478398a8ac30f691e82249cbd9214d5a593ba15250262a7c415e0c0c9df56c07f1ef0012ae85453347ba1cb9d22b

    Download Submit
  • C:\Users\Admin\dkqub.exe
    Filesize

    276KB

    MD5

    94264c22d0511e7ef216dfb6ccfb2cfb

    SHA1

    0d913cc7de7eed7e49e3253f5c950b1f224ac383

    SHA256

    f255d114284ca4e2c74b089604eea71b492eb1005360f47eee68a3bec8284a76

    SHA512

    f4e12f659380045808c210a511f2e3e31adc478398a8ac30f691e82249cbd9214d5a593ba15250262a7c415e0c0c9df56c07f1ef0012ae85453347ba1cb9d22b

    Download Submit
  • memory/2492-134-0x0000000000000000-mapping.dmp
    Download