Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fa3b196ef52d0f8…

MALICIOUS

PDF

38.6 KB Created: 2021-05-21 09:38:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e518a45d45cab2aeaa35ec851cb17428 SHA-1: e16c7d9b0796a3cabf23ce78e047da65b989baee SHA-256: 5fa3b196ef52d0f895e0756812447e1ecabc3af957905845cbd6e5b62eff7b7a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'free spins'. The document body explicitly mentions 'How To Hack Someone On Roblox' and includes a call to action to access a 'ROBLOX GENERATOR'. This indicates a social engineering lure designed to trick users into visiting malicious sites, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/how-to-hack-someone-on-roblox-game-hack In PDF document text
    • http://ff-klaffenbach.de/images/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/get-free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/how-do-you-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://ff-klaffenbach.de/images/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000327f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x327F 24408 bytes
SHA-256: a4f26e8cd62752357a36af4c30d816deb0cedb024d349ffdd1355221a59f44cf
font_01_sfnt_off00006a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2A 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off0000743a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x743A 18608 bytes
SHA-256: eebf4fd0ce8e014a693b7448b6f63c7fd528199174cddc1a90a23252bff1a633

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