Malicious PDF — malware analysis report

Static analysis result for SHA-256 245910df45b6cf0a…

MALICIOUS

PDF

35.8 KB Created: 2021-07-01 09:31:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8070c0d28a794adfa0de97b74dbc1ec0 SHA-1: 80f6e43bac439d957c5945913159be3e493dd6ac SHA-256: 245910df45b6cf0a5a1dacd289d095c77eba231b936899cad059f3bb8c871da4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and exploits, directing users to a suspicious URL. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs further supports a phishing or scam attempt. No scripts were extracted, but the document's structure and content suggest it's designed to trick users into visiting a malicious site.

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/431946152/roblox-how-to-execute-scripts-with-cheat-engine-game-hack PDF link annotation
    • https://allpromise.com.tw/image/data/files/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/robux-hack-no-human-verification-or-survey-or-downloads_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-hack-someone-on-roblox-on-ipad_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/roblox-free-character-maker_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/appbounty-robux-hack-without-human-verification_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-card-giver-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-roblox-2021-promo-code_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-good-groups-to-claim-in-roblox_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-robux-real-with-proof_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/where-can-i-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3374 22440 bytes
SHA-256: 0940d669a5c72df8fb8a7fc12feb79336ba4a96828a4a00f62bb3039afb1f8f7
font_01_sfnt_off00006561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6561 19556 bytes
SHA-256: b1d8f7e78aa643a8f377b1210c2abb1eb474bbcdf9eb3137d617dcafd8a10341

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