PDF malware analysis — malicious · 467408f11fdf2dc3

MALICIOUS

PDF

46.1 KB Created: 2021-05-12 16:11:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16

MD5: 83ca2f03701e0a0f4bbe984c5f235232 SHA-1: ce835a9273ccf5e16de7d122f862cfae0eda8240 SHA-256: 467408f11fdf2dc3928e487c4809e18d6a123bcaf5b30f1c3b28a8a21dea5ac9

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file contains numerous links designed to lure users to websites offering game hacks and currency. The primary malicious link, 'https://netcdn.xyz/app/431946152/roblox-group-free-robux-game-hack', is identified as a redirector. The document body and heuristics indicate a phishing or scam attempt, likely to deliver further malware or collect credentials. No scripts were extracted, but the structure suggests a malicious redirector chain.

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 https://netcdn.xyz/app/431946152/roblox-group-free-robux-game-hack In PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/give-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/how-do-you-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/coin-master-hack-pro_GM406889139.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/minecraft-pe-017-0-apk-free-download-android_GM479516143.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/free-spin-link-in-coin-master-game_GM406889139.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
- https://elearning.man5-bogor.sch.id/__statics/gudangsoal/files/roblox-com-games-referrer-roblox-player_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
`stream_003_off000056a8.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x56A8	26724 bytes
SHA-256: `d5a045c87b4493271062d3f3a920cc1ea61c683fb2862dc4111c92a439632213`
`font_01_sfnt_off00009260.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9260	18264 bytes
SHA-256: `b2792b9995997ff68e5dfa2acea2bbc639d657441038e216f117c3302624ca62`

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