PDF malware analysis — malicious · 3a84d95f463216b5

MALICIOUS

PDF

35.5 KB Created: 2021-07-06 03:05:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25

MD5: 7a79db7514ef183e4ac8dcf0051fc54d SHA-1: 55cd5ea89b2e6a47d7ec80738c54023202ac1eb0 SHA-256: 3a84d95f463216b500fdc46b7ea16899375c46ed0083e1c1cdcda57197f1b45a

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links, including a critical redirector URL, designed to lure users into clicking on what appears to be a 'free generator' or 'game hack'. The ML classifier strongly indicated maliciousness. The document body and extracted URLs suggest a scam related to in-game currencies or virtual items, likely leading to phishing or further malware delivery.

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/free-spin-coin-master-new-link-game-hack In PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/games-like-coin-master_GM406889139.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-get-400-robux-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/hacks-para-roblox-mad-city-wall-wallhack_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-robux-no-email-no-download_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-robux-i-swear-to-god_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-free-robux-scams_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-and-spin-link_GM406889139.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-bypass-songs-roblox_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-hack-free-robux-pc_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/hacks-para-volar-en-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-imagine_GM431946152.pdfIn PDF document text
- https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-get-free-robux-fast-and-easy_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_off000033b0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x33B0	23096 bytes
SHA-256: `ad7c86998a4056ddecb0d73bd66243a5a1c22e2726445d9dd3a351d4bd8fda97`
`font_01_sfnt_off00006795.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6795	18508 bytes
SHA-256: `d7ed6df79d715ac8ef9aa6c406a3d40a3a305f21fbffd98244eb1bf6171f6987`

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