PDF malware analysis — malicious · d381edc75e9a8827

MALICIOUS

PDF

34.6 KB Created: 2021-07-03 19:06:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21

MD5: d48cb55fc3a5257fe6bff9548ae4800e SHA-1: 8be95a940a98ea77eab4c783ea08a287f3335b98 SHA-256: d381edc75e9a8827cc54a24a4582dd6010e103dcbd957acc2b256cb670700178

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users to scam websites offering free game items and hacks. The primary redirector URL is http://netcdn.tw/app/479516143/free-minecraft-resource-packs-game-hack, which is associated with malicious redirector infrastructure. The document body and embedded links suggest a phishing or scam campaign leveraging popular game titles to attract victims.

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/free-minecraft-resource-packs-game-hack In PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/how-to-get-roblox-gift-cards-for-free_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/robux-sites_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/dailyrobux_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-free-spin-whatsapp-group-link_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/when-is-vesteria-roblox-predicted-to-be-free_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/how-can-you-get-free-robux-in-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-marshmellow-head-on-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/minecraft-story-mode-free_GM479516143.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
`font_00_sfnt_off0000347d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x347D	21792 bytes
SHA-256: `95b3823bbe808c68b9a7ff65b70653d0a242553d0211ae34986874916cbcfb12`
`font_01_sfnt_off00006430.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6430	18464 bytes
SHA-256: `bda17eedfc7e084af3a5cca25f434e93a480768e71f446ca4eb0faf9d35560c1`

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