Malicious PDF — malware analysis report

Static analysis result for SHA-256 b007670f37463831…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 07:52:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: a612cf9714be2f05089ec1fd684c942b SHA-1: 0771ba7cc2b23137aad19c114a247e539d6358f0 SHA-256: b007670f37463831773ff22f1055155e8800c0c40a2b8f4efaeab980ee38c892
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector, under the guise of game hacks and free currency generators. The heuristic firings indicate these links are intended to lead users to malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a lure for users to download potentially malicious content or visit phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.tw/app/479516143/minecraft-hack-2021-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-adder_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-valkyrie-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-pokemon_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-that-has-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-hack-tool-download-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-teethyz-dentist-how-to-hack-through-the-hr-door_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/mask-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-hack-free-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-hackhub-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-vip-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/crop-tops-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-free-robux-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
font_00_sfnt_off000032fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32FE 21992 bytes
SHA-256: 30af8b126a036aa795e53a23b2bfa4df4aab0481bebbc1ad5ae161925202e2ee
font_01_sfnt_off00006382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6382 18428 bytes
SHA-256: 65ef7673dda910d5c1206c2dd7dddcbba7cd96e5a7782ef6ed0e94e119ec4adc

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