PDF malware analysis — malicious · ca7e539ff799106b

MALICIOUS

PDF

34.6 KB Created: 2021-07-08 15:28:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: bd0b6470d935df27bcef86f61e44f9bd SHA-1: 2438bd05a13e117757e4c9452ecec25312e4b4af SHA-256: ca7e539ff799106b72bea46a802b0a4bfe65250368f3babf2752694432f48403

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.tw/app/406889139/free-spins-coin-master-android-game-hack PDF link annotation
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/roblox-segway-free_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/speed-hack-roblox-cheat-engine-64-download_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/minecraft-cheat-client_GM479516143.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/robux-link_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-face-roblox_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/home-roblox-hack_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/roblox-assassin-hacks_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
`stream_002_off0000314b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x314B	22672 bytes
SHA-256: `a4c78903238e75093ebe971f091443f9cf6bfa553ded338a691a6c908d29d393`
`font_01_sfnt_off00006439.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6439	18348 bytes
SHA-256: `5f09792028422a0f3da80369e6b79e1943eb381c954ddc120ae65d5118bfcfa1`

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