Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfe790417c0b87b9…

MALICIOUS

PDF

43.7 KB Created: 2021-05-17 14:33:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b34ba989a3d56b7a158f032b1418bcc7 SHA-1: a8f665467bb726add1cb3cfec13a424a4cf301fc SHA-256: dfe790417c0b87b93f81e23cbd68ad283b009732b4506edf07860b9046defd3a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on them, disguised as generators or hacks for popular games. The primary link, 'https://netcdn.xyz/app/431946152/roblox-promo-codes-generator-no-human-verification-game-hack', is flagged as a malicious redirector. The document body and embedded URLs suggest a phishing or scam attempt to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • 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.
  • 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-promo-codes-generator-no-human-verification-game-hack In PDF document text
    • https://www.sarsen.net/uploads/files/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-app_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-spins-and-coins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/robuxglobalcom_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/coin-master-hack-apk-android-1_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-minecraft-website_GM479516143.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/where-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-hack-no-verification_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_off0000480d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x480D 27308 bytes
SHA-256: b06276f2ab2143ff808a1ffccee8a0323ca9a6eace7f4e0802dc85dd3fb944da
font_01_sfnt_off00008632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8632 19100 bytes
SHA-256: da1745847f0d76ea82434fee3d569844ba056c0d901119001214af0940d395e7