Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f9ea415804c34ef…

MALICIOUS

PDF

45.4 KB Created: 2021-05-15 16:08:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9a8d3e9c7480bceef9f5a07eec81b177 SHA-1: 24ea22b9c4e82f019ad8124ad6286e9ea67d7085 SHA-256: 1f9ea415804c34ef17f607172a38140c9ebdbd82da230c826e138990601377f1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as 'free generator' or 'game hack' lures. The document body and extracted URLs suggest a social engineering tactic to trick users into visiting these sites, which likely serve as a gateway for further malicious activity such as malware downloads or phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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-obby-game-hack In PDF document text
    • http://dygmotors.com.py/images/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-download_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/www-free-robux_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-generator-hack_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/roblox-moderators_GM431946152.pdfIn PDF document text
    • https://www.bandicam.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000442d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x442D 27956 bytes
SHA-256: 5fa443be066b45ac06c4a082f9001b1b472bcfb5d6ac201b7e4dc1f379cf00ca
font_01_sfnt_off0000826b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x826B 3924 bytes
SHA-256: 8fc54521f691179232c6528ec87a60611eb6f4e09b6c0f65b1eb4dcb4ea1df95
font_02_sfnt_off00008f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3B 18196 bytes
SHA-256: adb317c4997580e24d4ed6f1d3168dfe6823b431b7b24dbbc6245ab95f909cf9

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