Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7008f8534ea7fae…

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 12:58:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 53b7dc2b2bd35b267846310a7fae827f SHA-1: 06032f0f43dcdca1d223eb77e1ceb302433c29cd SHA-256: d7008f8534ea7faec81c3e01c07ecd02a8f2e5b00b1538c4d00069d5ee58e1c3
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the presence of numerous suspicious URLs strongly indicate a phishing or malware distribution attempt. The document body and embedded URLs suggest a lure for free game items or cheats, a common tactic for distributing malware or leading users to scam sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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-apk-free-download-016-0-game-hack In PDF document text
    • http://abdinusababellibrary.ac.id//repository/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/roblox-retail-tycoon-cheat-engine-download-2021_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/how-to-get-5-free-robux-doing-nothing_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/roblox-rewards_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E82 21980 bytes
SHA-256: d1c44f8f0967d39bf778cad5713848c2f5cbaf595c1d47249b9622ad8e9254b5
font_01_sfnt_off00005ec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC6 19372 bytes
SHA-256: 199fc5fb5555a01dd07f1f7af865c4c0146787c368d5cdea82e8d68cb589e1c5

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