PDF malware analysis — malicious · 7c0ef80736a07842

MALICIOUS

PDF

34.1 KB Created: 2021-07-01 20:52:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 7184b633c5b2c4e3693350bcb7f8e91a SHA-1: 4e822fe93b4107308b082da3b07005d87f0f034f SHA-256: 7c0ef80736a0784202aea5f58c58d5cdf466b9b1e0292b6acf27bd5e27fcffb3

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are SEO-optimized PDF files, suggesting a link farm or redirection scheme. The primary lure appears to be 'free Minecraft alt accounts' and similar game-related cheats, which is a common tactic for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of multiple external links and a download button lure reinforces this assessment.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
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.co/app/479516143/free-minecraft-alt-accounts-game-hack PDF link annotation
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/coin-master-daily-free-spins-link-today-2021-free_GM406889139.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/hack-coin-master-apk_GM406889139.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/pokemon-go-free-or-gotcha_GM1094591345.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.interiormurahjogja.com/ckfinder/userfiles/files/mcpe-master-hack-unlimited-coins-apk_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_off000032c2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32C2	22020 bytes
SHA-256: `d165e291c18d01fe1db79463e688ce9d1c6615231de4d8ddcae2edd13e43d6da`
`font_01_sfnt_off00006309.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6309	18212 bytes
SHA-256: `a587ad5d7ccc78e3894402c93b871667a6b3b423df15bdaf3724955d5b668927`

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