Malicious PDF — malware analysis report

Static analysis result for SHA-256 478ae6b507aa1218…

MALICIOUS

PDF

44.8 KB Created: 2021-06-09 03:54:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: b57d0f78eac0f7898b4657be9300b175 SHA-1: bbb8194287524c2fd62df6671572a34f7301bb14 SHA-256: 478ae6b507aa1218926abbc8b3605d4bad90858b0789e85a13d560873bcf9571
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA to trick the user into interacting with a malicious link, which is a common social engineering tactic. The embedded URL points to a resource related to game exploits, further suggesting a malicious intent to lure users into potentially harmful actions. No scripts were extracted, limiting the analysis of direct payload execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.tw/app/431946152/how-to-get-free-vip-in-roblox-fashion-famous-game-hack PDF link annotation
    • http://www.dciprotection.ca/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-girl-avatar_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-data-breach_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/village-4-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/tiktok-free-crunchyroll_GM835599320.pdfIn PDF document text
    • http://www.dciprotection.ca/images/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050ae.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50AE 24632 bytes
SHA-256: bb90bc351e5cd5e48ab844be556cc635e3695578fddf9139a8ba91a608da17dc
font_01_sfnt_off00008919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8919 19440 bytes
SHA-256: 3f399405cdf88a158522d0f5de1d98985270e83f831fb156e5e5dbe1d7151807

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