PDF malware analysis — malicious · 5037eb901fa660b8

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 22:51:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: bd03ea0dd8a26931db68824919fc31d1 SHA-1: e184cde27c06162bc461a4b207d5800455ce3090 SHA-256: 5037eb901fa660b8b7e02d6bf27c0527e71bb14a8e85cc97fdf582ad5df64511

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/hack-coin-master-spin-apk-game-hack PDF link annotation
- https://www.donjastubica.hr/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- https://www.donjastubica.hr/files/free-spins-and-coins-coin-master-facebook_GM406889139.pdfIn PDF document text
- https://www.donjastubica.hr/files/free-roblox-wings_GM431946152.pdfIn PDF document text
- http://www.donjastubica.hr/files/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.donjastubica.hr/files/rape-simulator_GM431946152.pdfIn PDF document text
- http://www.donjastubica.hr/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
- http://www.donjastubica.hr/files/sb-game-hacker-coin-master_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/coin-master-tiradas-gratis_GM406889139.pdfIn PDF document text
- https://www.donjastubica.hr/files/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.donjastubica.hr/files/freerobuxhack-us_GM431946152.pdfIn PDF document text
- http://www.donjastubica.hr/files/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
- https://www.donjastubica.hr/files/coin-master-free-spins-and-coins-generator_GM406889139.pdfIn PDF document text
- http://www.donjastubica.hr/files/coin-master-daily-free-spins-blogspot_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
`stream_003_off000049de.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49DE	25936 bytes
SHA-256: `864385cd49d565e4567e9b5de67ee1acb196b1f0c4ee0f8ce018b4083606ec8f`
`font_01_sfnt_off0000856a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x856A	17892 bytes
SHA-256: `38303170ac9c6ca0f2851823f29ecc879fead5c3d3518135c6ab8fad8fa3f0a9`

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