PDF malware analysis — malicious · 4ea3f0c7de473c23

MALICIOUS

PDF

46.4 KB Created: 2021-06-03 05:42:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: c1fd9a3122ff58a4c8e3b3639c5c138e SHA-1: 87c90c3c334c65f825ffbd84ec210be7dd71d04c SHA-256: 4ea3f0c7de473c23ffbe6d6ea1aa24652a006ea3df5cb6417db13cbe8366154e

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure for a "free generator / game hack" which redirects to a malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a potentially malicious site, likely for credential harvesting or further malware delivery. The ML classifier also flagged this PDF as malicious.

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/minecraft-free-unblocked-game-hack PDF link annotation
- https://www.ak-oroslavje.hr/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/play-roblox-free-online_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-robux-survey_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-link-today_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/javascript-free-robux_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/minecraft-menu_GM479516143.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/moonactive-coin-master_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/robux-download_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-apk-hack-35-8_GM406889139.pdfIn 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_off00005009.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5009	24788 bytes
SHA-256: `07ded38ff01c4fed3f36358070d04fcad07eea52cd5759587b85c26f7032e74e`
`font_01_sfnt_off0000878c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x878C	3056 bytes
SHA-256: `dd24a0ab94df4552e459bd06fd01b0fd3f021c1d51d1d64407070e735974a028`
`font_02_sfnt_off000091ff.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91FF	18472 bytes
SHA-256: `4446ec9a14b3bfac30f066e0e962bc7f96b5cea98edad6ed93b9652aaf8297cb`

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