PDF malware analysis — malicious · 70e0a0b46a3be784

MALICIOUS

PDF

46.5 KB Created: 2021-06-03 17:09:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: cbdc7154175c60938cecb3bd2138ec21 SHA-1: 88197fb97c225ab4d7964d56d574ff63d3124349 SHA-256: 70e0a0b46a3be784f3f0fa4d47daa5ff14b4929241dfb837a3d96626c4758f65

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on a link to 'wurst-mc-game-hack'. This, combined with the 'PDF_GAME_HACK_REDIRECT_LURE' heuristic, strongly suggests a social engineering tactic to trick users into downloading malware or visiting a phishing site. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the presence of external URIs and the lure indicate a likely attempt to deliver a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9748

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 https://netcdn.online/app/479516143/wurst-mc-game-hack PDF link annotation
- https://www.jcn.co.uk/uploads/files/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/claim-roblox_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-hack-without-verify_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/www-roblox-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-facebook-free-spins_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/pubg-uc-with-easypaisa_GM1330123889.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-2021_GM431946152.pdfIn PDF document text
- https://freegiftcodes.euIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005443.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5443	24364 bytes
SHA-256: `328c1659ec113e015c08bc29479fdce1770308b20a333d7500ee3a17881ccbe9`
`font_01_sfnt_off00008ae7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AE7	2920 bytes
SHA-256: `ada9123130b44c2e3ec1e318ac0de3fc1240d1bf6c68092e8e5867f836aa052d`
`font_02_sfnt_off00009503.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9503	17556 bytes
SHA-256: `42208ca16144cf3638b4e14489635fc98426cb09ec794bff84aa9a2d6a3db890`

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