PDF malware analysis — malicious · cffb1807f09f9a42

MALICIOUS

PDF

34.2 KB Created: 2021-06-19 22:35:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 112c4abdfce2bb6e8e66fa44e77d68da SHA-1: aafff9c7a842098c7c437dfba12803acfa40df4a SHA-256: cffb1807f09f9a42e6a1a0424b40aef6ab877481ee3790b731073b6308b2a153

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 0.9980

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 http://netcdn.co/app/479516143/free-minecraft-bedrock-server-hosting-game-hack PDF link annotation
- https://new.minsatulearning.com/__statics/gudangsoal/files/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/como-hackear-jailbreak-roblox_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-apk_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-hair-roblox_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/roblox-free-robux-hack-mod-apk-download_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/toolbox-apk_GM479516143.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-2021_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_off00003161.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3161	21956 bytes
SHA-256: `8b4fc0ba8ab3d88b08aa8449dfc27c02a427361e40597f789b649fc52b85a7c4`
`font_01_sfnt_off000061f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61F6	18672 bytes
SHA-256: `fcf161d812b4feaa3e2bf8e8c417d8656b3909a46e27a4c0a1d90eda073f6fc6`

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