PDF malware analysis — malicious · f4f4d89e523aac8b

MALICIOUS

PDF

34.9 KB Created: 2021-06-22 00:28:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 7839d4e90093048387c54c9bcfa6e21d SHA-1: a20cab2c22fe1ad4a23abe414a3cbdbe00517bdf SHA-256: f4f4d89e523aac8b7aa6319c0f5761a2d227ffcc60f2c69824b676acf650ed0e

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/406889139/coin-master-20-free-spins-link-today-game-hack PDF link annotation
- https://new.minsatulearning.com/__statics/gudangsoal/files/irobux-com-redeem_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-3d-models-for-roblox_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-real-hack_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coinmaster-blogspot_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/how-do-you-earn-robux_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-hack-355_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/free-robux-link_GM431946152.pdfIn PDF document text
- https://new.minsatulearning.com/__statics/gudangsoal/files/moon-static-coin-master-generator-hacks-free_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_002_off00003062.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3062	22932 bytes
SHA-256: `72d936d962f4100b5ba3dd8320597f9d5168f842ba7817f56d5efb179d14a133`
`font_01_sfnt_off00006358.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6358	18992 bytes
SHA-256: `0f16f6f05544a8482aa3305e7e753d03ef12058668236921500c43b65501b7a4`

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