Malicious PDF — malware analysis report

Static analysis result for SHA-256 089ec81828fac3ef…

MALICIOUS

PDF

43.4 KB Created: 2021-05-13 10:54:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 731bdfb6f1a825ee02208b361f56cbaa SHA-1: bfb33c4ca5fc5e359153e4e947a9cfce6b086c59 SHA-256: 089ec81828fac3ef6481f39f8f33573bd86500f173b21f7c9a1b7f7b846eb7a9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' and game hacks. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection capabilities.

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/free-robux-legit-game-hack In PDF document text
    • https://www.lavigny.ch/images/como-hackear-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • https://www.lavigny.ch/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.lavigny.ch/images/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • https://www.lavigny.ch/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://www.lavigny.ch/images/free-games-like-coin-master_GM406889139.pdfIn PDF document text
    • https://www.lavigny.ch/images/robux-adder_GM431946152.pdfIn PDF document text
    • https://www.lavigny.ch/images/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • https://www.lavigny.ch/images/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
    • https://www.lavigny.ch/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.lavigny.ch/images/robux-withdraw_GM431946152.pdfIn PDF document text
    • https://www.lavigny.ch/images/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://www.lavigny.ch/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://www.lavigny.ch/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://www.lavigny.ch/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • https://www.lavigny.ch/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.lavigny.ch/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://www.lavigny.ch/images/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
    • https://www.lavigny.ch/images/free-roblox-characters_GM431946152.pdfIn PDF document text
    • https://www.lavigny.ch/images/roblox-comroblox_GM431946152.pdfIn PDF document text
    • https://www.lavigny.ch/images/how-to-hack-coin-master-cheat-engine_GM406889139.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_off000049b3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B3 26368 bytes
SHA-256: 3ff692f3e09e5a33b6c29a237579b15ff80f56c16bfd894d6a2467dc02b1fe74
font_01_sfnt_off0000866a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x866A 18528 bytes
SHA-256: aa02e962ea97e6ca8489eff7fd27dc9c81bb0b76c5ed523337a23ffa677521ed