PDF malware analysis — malicious · 2fb1e404728123a3

MALICIOUS

PDF

34.0 KB Created: 2021-07-04 06:12:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 70e9dbf099024190f30624af0a4acb7d SHA-1: aaf81185e6295034d551aeaf4c8e7a2b9ff9a76e SHA-256: 2fb1e404728123a33baff4df3cadc23a9d575d2a66e0a1ae1994b1d9dc408cb2

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic firing for a game hack lure, directing users to a suspicious URL. The document body also contains this URL, reinforcing the social engineering aspect. While no scripts were extracted, the overall pattern suggests a phishing attempt to redirect users to a site that likely hosts malware or further phishing content.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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/coin-master-hack-xyz-game-hack PDF link annotation
- https://maths-pdf.fr/ckfinder/userfiles/files/how-to-get-robux_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/roblox-free-draw_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/how-to-hack-roblox-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-robux-for-free_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/roblox-character-free_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-robux-mobile_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/cheats-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/how-to-stop-roblox-from-crashing-when-using-hacks_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/roblox-a-free-virtual-world_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/hack-minecraft_GM479516143.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/coin-master-hack_GM406889139.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-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_off00002f62.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F62	22444 bytes
SHA-256: `3a4a58492528d1db596f71322b8340c1a16b4271d5fbf99a461421be277ffdef`
`font_01_sfnt_off0000615d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x615D	18496 bytes
SHA-256: `bd2c90d618eff90014fde70917c30f451870fa3342cf3e365369efdfab30b31e`

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