PDF malware analysis — malicious · 15187f16401c8702

MALICIOUS

PDF

35.2 KB Created: 2021-07-03 20:56:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21

MD5: 4f2d685f988b86368faf34a8b85eedd9 SHA-1: 6e31d911c9dd63961f0cd6f72392000cb2f5dcf7 SHA-256: 15187f16401c87027cda1567d0f8a6e84a5ebb9da5775ca12ac3a703b7d6bb99

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to lure users into clicking on what appear to be game-related cheats or free items. These links lead to a malicious redirector and a large farm of SEO-optimized PDF files, indicating a phishing or scam campaign. The document body and heuristics confirm the intent to redirect users to potentially harmful content.

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/406889139/how-to-get-free-spins-for-coin-master-game-hack In PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/hack-coin-master-apk_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-roblox-gear_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/minecraft-free-edition_GM479516143.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-roblox-acouts-full-with-robucks_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-whatsapp-tik-tok-status-download_GM835599320.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-promo-codes-2021-july_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/roblox-how-to-get-a-free-vip-server_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/how-to-hack-pets-into-pet-simulator-on-roblox_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-just-click_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-free-spins-cash_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_002_off00003317.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3317	22984 bytes
SHA-256: `846f510fab84c9fb39ac012c4465abe3c1c02734f6ee682038dcdb55168d9467`
`font_01_sfnt_off000066a9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66A9	18336 bytes
SHA-256: `23f71a9ba4d854b783c042dde3b810d75211435ebb04f16eb6963276a01a3aa2`

Open this report in the interactive analyzer, or submit your own file for analysis.