PDF malware analysis — malicious · 674e6f5f810de5a7

MALICIOUS

PDF

33.1 KB Created: 2021-07-09 10:26:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 735860de72079a4f974299fa2828f937 SHA-1: df1357f44ef64f874041cab7374c645fc5327b78 SHA-256: 674e6f5f810de5a74c3bbac694e45e1fe2f2a46435d30fc0cf530aeb59e3b8eb

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 0.9824

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/431946152/free-robux-no-survey-game-hack PDF link annotation
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/free-robux-gen-no-verification_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/free-roblox-pin-codes_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-hack-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/cheat-codes-for-bounce-roblox_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-walkspeed-hack-cheat-engine_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/hack-roblox-counter-blox_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/easy-free-robux-com_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-shield-hack_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/robux-free-2021_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/robux-com-free_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/pubg-uc-online-generator_GM1330123889.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/cheated-roblox-gun_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-glasses-code-to-get-for-free_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/roblox-hack-2021-robux-pc_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_off00002c32.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2C32	22024 bytes
SHA-256: `bb51982e216386de9f95b690db5ea737bcc08aaf7b8b4ec9b6ff0ec01209f44b`
`font_01_sfnt_off00005cba.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5CBA	19012 bytes
SHA-256: `4e4ee538de79ec7e4a2325d57c934275716f5f92a64f1321ae55620a5fe6760f`

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