Malicious PDF — malware analysis report

Static analysis result for SHA-256 c22f72c58efeb50a…

MALICIOUS

PDF

34.4 KB Created: 2021-06-19 05:50:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ae998e4d4535ef2e5e626be54fa49ead SHA-1: 03d7a00e999c8d3820766209f3f76f3881663c66 SHA-256: c22f72c58efeb50adf360c55f3562bd6883672b938bf8f174f257ccabc666ad4
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links and lures related to game hacks and free currency, specifically mentioning Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/how-to-make-a-roblox-scam-website-free-game-hack, is identified as a credential phishing lure impersonating Facebook. The document's structure and content strongly suggest an attempt to trick users into visiting malicious sites, likely for credential harvesting or to initiate further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.co/app/431946152/how-to-make-a-roblox-scam-website-free-game-hack.
  • 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/how-to-make-a-roblox-scam-website-free-game-hack PDF link annotation
    • http://library.ulb.ac.id/repository/raindrop-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/fbchampion-com_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-codes-not-used-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/w-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-spins-and-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/minecraft-free_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/robux-games_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/comment-creer-un-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/cone-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/com-hackear-cuentas-de-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-script-imputer-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00002d14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D14 22396 bytes
SHA-256: 6ab1b1df5a61284fa79fc367b2bfa08588c2336970999b93d45d22845d52ce56
font_01_sfnt_off00005f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F00 19860 bytes
SHA-256: 41b43ead69217e6ae60518e2b5734a737144f350dfdce869f49be16628f3de82

Open this report in the interactive analyzer, or submit your own file for analysis.