Malicious PDF — malware analysis report

Static analysis result for SHA-256 613d9fb68e9630bd…

MALICIOUS

PDF

34.2 KB Created: 2021-06-29 02:43:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d8e011321dbf3a5b9c3f7bb029d1920d SHA-1: 6c6a4053bd39072f9f5ce6be63b0127d99942da8 SHA-256: 613d9fb68e9630bd3cd194756cb167552b0f406650f334e993177aa36d731977
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link disguised as a game hack generator, which redirects to known malicious infrastructure. This lure is designed to trick users into visiting a potentially harmful site. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this PDF is part of a phishing or redirection scheme.

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.co/app/431946152/roblox-blob-simolator-2-hack-game-hack In PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/cheating-roblox-thumbnail_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-august_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-free-coin-and-spin-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/rewardex-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-robux-net_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-robux-app_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-prison-life-hacks-trackid-sp006_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-roblox-card_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-roblox-dress-up_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_off00003060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3060 21664 bytes
SHA-256: 1e2d3bac87a0a6d3ffebd54747c51b100760d955b3c799037749727577cf3101
font_01_sfnt_off00006000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6000 19264 bytes
SHA-256: fecb67106631293973b4b6ff6159b70ee313f5b4903b9897714ffc0d1abd85ae

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