PDF malware analysis — malicious · 2939803789296426

MALICIOUS

PDF

43.4 KB Created: 2021-05-13 01:49:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 06b1c160f48ea67660f299819f119c14 SHA-1: 15f7f5450d656f3829c79eb0ec061778c8ef462e SHA-256: 29398037892964261bd432d3314edafc2244c3ca39dab6c0bee9d163096c301b

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and websites offering game hacks or free currency, designed to lure unsuspecting users. The document body text and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malware downloads or credential harvesting. No scripts were extracted, but the presence of multiple malicious links is a high-confidence indicator of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/youtube-how-to-get-free-robux-game-hack In PDF document text
- https://dolphintour.vn/images/uploadsfiles/www-coin-master-hack_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-free-spins-daily-link-game-mod_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/tiradas-coin-master_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/master-coin-free_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-com-redeem_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-hacks-com_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-tricks-and-hacks_GM406889139.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.

Filename	Kind	Source	Size
`stream_003_off000049b5.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49B5	26780 bytes
SHA-256: `e003f9f7c50295dea3ba23a676ab4f8e1582b9197da23e2e77fe152f73d48ac1`
`font_01_sfnt_off000086f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86F6	18444 bytes
SHA-256: `19af2615bd9086bd478ca88a6ce690b9ca3ed86297e9e30c9ccbcb4910b84991`

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