PDF malware analysis — malicious · 35f12b5b9b6f1d94

MALICIOUS

PDF

34.3 KB Created: 2021-07-07 22:05:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: 6509a7a6de2719a784f446f56a791cd8 SHA-1: f95a08ccdf3b65b3de29384e55c2cfe0b03a8b09 SHA-256: 35f12b5b9b6f1d943abc78f165481ff2b549fdb0f853e8f868d035ae74c66d2a

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and SEO link farms, masquerading as game hacks and cheats. The primary URL, http://netcdn.tw/app/479516143/minecraft-cheats-switch-game-hack, is a critical finding. The document's structure and content strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

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/minecraft-cheats-switch-game-hack In PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/pokemon-go-free-team-medallion_GM1094591345.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/outfit-code-free-garcon-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/how-to-find-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/speed-hacks-on-fangs-roblox-with-out-cheat-engins_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/pokemon-go-free-raid-passes-2021_GM1094591345.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/lucky-patcher-coin-master-hack_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/free-robux-today_GM431946152.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/fb-coin-master-hack_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/free-coins_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://elearning.mialirsyadkotakediri.com/__statics/gudangsoal/files/blue-roblox-hack_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.

Filename	Kind	Source	Size
`font_00_sfnt_off00003288.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3288	22240 bytes
SHA-256: `146b90472c40079697b940251caa8a0ff86c61446d5eaad0cf385fdaba4bbc89`
`font_01_sfnt_off000063ae.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63AE	18188 bytes
SHA-256: `9dde8f36e51ad3ff5b291f9872cd341ba17df7b948e3e3937f7bc458e100ef84`

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