Malicious PDF — malware analysis report

Static analysis result for SHA-256 719ba7ff57fee732…

MALICIOUS

PDF

34.2 KB Created: 2021-06-19 22:58:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b0db6dba169ae3ce739b682ee9d90f23 SHA-1: e9a09bd391bb82b8eba68e7ef68ddcf3369a3e01 SHA-256: 719ba7ff57fee732768154f50df4f2109405ae1539da55044db9e6f5cb60fd13
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a common lure of 'game hacks' and 'free generators' to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/sword-fighting-roblox-game-free-to-copy-game-hack, and numerous others hosted on lesvossolidarity.org, likely lead to a malicious website. The ML classifier strongly indicated maliciousness, and the PDF structure and content align with social engineering tactics to redirect users to potentially harmful content or exploit kits.

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/sword-fighting-roblox-game-free-to-copy-game-hack PDF link annotation
    • http://lesvossolidarity.org/images/free-robux-script_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/runinate-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/brightness-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/roblox-card-codes-free-2021_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/roblox-jump-hack_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/groups-give-free-roblox_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/zephplayz-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00002f22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F22 21636 bytes
SHA-256: eb31025d1665c7d255604612437642b96d0aee7a93b6cae49071b893faf6ac0e
font_01_sfnt_off00005e95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E95 19808 bytes
SHA-256: 4f17d3a71da186203735440c205029217ccfefdcb343a8ea2a3e3b0a0527d203

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