Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b34dd985def5b50…

MALICIOUS

PDF

43.3 KB Created: 2021-05-14 19:30:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 19f93a0c8b1f0f214d3e2504a7722306 SHA-1: d6a7d313436dcd16b309818170075686ae015fdd SHA-256: 2b34dd985def5b50a431c322fc6e6ed681275d3f97f514d037ff773b3595e0ca
200 Risk Score

Malware Insights

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

This PDF document employs a lure for free game items and currency, impersonating brands like Paypal to trick users into clicking malicious links. The primary link redirects to infrastructure known for hosting malicious content, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure and embedded URLs indicate a client-side exploitation or redirection vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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: https://netcdn.xyz/app/431946152/roblox-free-hats-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
  • 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 https://netcdn.xyz/app/431946152/roblox-free-hats-game-hack In PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • http://www.weworkkuwait.com/uploaded_files/userfiles/files/free-roblox-printables_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.

FilenameKindSourceSize
stream_003_off00004ae1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AE1 26584 bytes
SHA-256: cd89cf5e3b1e89895fb23eb19f45d31fa5f88557dfd71d8e9fbb44340c82cdd6
font_01_sfnt_off000086fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86FA 18280 bytes
SHA-256: d79b24007103f0b8771e10b039c1f7207970f223f4181a99123e56d5497ad133

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