Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d52807a31866f53…

MALICIOUS

PDF

34.2 KB Created: 2021-07-01 12:57:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 433c5519109fbd1525bca7c56e3fc1b7 SHA-1: 7198b60143dac70a6f189c36733f95be46469fc0 SHA-256: 8d52807a31866f53d9ae98cdf0c15973e6d51ae33bd932329a0896583b0f9785
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, disguised as game hacks and generators. The primary lure URL is http://netcdn.co/app/431946152/ho-to-use-roblox-hack-menu-game-hack, which is associated with a 'free generator / game hack' theme. This indicates a social engineering tactic to entice users to click malicious links, likely leading to further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/ho-to-use-roblox-hack-menu-game-hack In PDF document text
    • https://de-licht.com/image/data/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/hack-hack-roblox_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/pubg-uc-event_GM1330123889.pdfIn PDF document text
    • https://de-licht.com/image/data/files/games-for-robux_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-vpn-for-minecraft_GM479516143.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/red-line-30-roblox-hack_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/client-minecraft_GM479516143.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/roblox-ainti-cheat_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/minecraft-esp_GM479516143.pdfIn PDF document text
    • https://de-licht.com/image/data/files/robux-no-verification_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/games-like-roblox-but-better-and-free_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/i-want-robux_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 1

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_off00002ed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED9 22340 bytes
SHA-256: 537c765000013bb55a015c540316e12f5b31504448377502e56c3a8cdd4a20e0
font_01_sfnt_off000060cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CB 18992 bytes
SHA-256: d1df46e73edd1c1256b4140924c0ee3460c9b19ff6f2fd667226503e40c79c28

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