PDF malware analysis — malicious · 33edc1d21c62322b

MALICIOUS

PDF

34.9 KB Created: 2021-07-01 06:37:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 492511a97b801e590f180ed6cbbdb505 SHA-1: c64742e4b1b885ef50437d1fe4cce26cf0bbbb9e SHA-256: 33edc1d21c62322b50d1c6bf24246677c3c2ae8b12fdd67d40f60f652a4f69a9

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/406889139/coin-master-free-spins-reddit-game-hack. The document body and embedded links suggest a lure for game-related cheats or currency, which is a common social engineering tactic. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/406889139/coin-master-free-spins-reddit-game-hack In PDF document text
- https://www.advancissurgical.com/uploads/files/files/game-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-tix-roblox-no-survey_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/www-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-use-cheat-engine-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/this-you-cna-do-with-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-java-for-free_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-join-players-that-arent-freind-hack_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/hack-para-tener-robux-en-el-movil_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-dragon-ball-z-online-cheats_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-800-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-pin-codes-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-dragon-ball-rage-hack-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-black-wings-roblox_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-hack-roblox-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-knives-in-assassin-roblox_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-apk-mod-hack-download_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
`font_00_sfnt_off000030e6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30E6	23356 bytes
SHA-256: `bc1fb9fd71c37fc026940adc3b94f1d019929134dfe760dddbfe37a8a9bbef6a`
`font_01_sfnt_off000065b9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65B9	18348 bytes
SHA-256: `29dc96aefd487d8a08d3b644465e0035e7a8016498191be682187f27a960845e`

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