PDF malware analysis — malicious · 9dbd2836c31d96c4

MALICIOUS

PDF

27.6 KB Created: 2021-05-10 19:30:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 9ea735a90a68cd795422cc3509f4c9db SHA-1: 6b52545adc417e95d109779a78db4c6bf5fab671 SHA-256: 9dbd2836c31d96c42d0715d261c057bd2ac0abb73f33d75324a3c22a9c8a4638

102 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 0.9759

Heuristics 5

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.
Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL

PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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/431946152/free-roblox-card-game-hack PDF link annotation
- http://45.115.65.99/__statics/gudangsoal/files/free-spins-coin-master-twitter_GM406889139.pdfPDF link annotation
- http://45.115.65.99/__statics/gudangsoal/files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/minecraft-jar-free_GM479516143.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/minecraft-mod-menu_GM479516143.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/coin-master-spins-for-free_GM406889139.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
- http://45.115.65.99/__statics/gudangsoal/files/free-robux-generator-no-verification_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_off000021ae.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x21AE	18936 bytes
SHA-256: `13e738f840c37009ee727fa325cb06be19952958875fb9da8eef86ef0c656f8c`
`font_01_sfnt_off000048c0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x48C0	18348 bytes
SHA-256: `112d0d0d53092b330ca0b2276e93dcc27866393801cc1956065b4b485469ba66`

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