Malicious PDF — malware analysis report

Static analysis result for SHA-256 196c0885e08899b8…

MALICIOUS

PDF

44.2 KB Created: 2021-05-16 22:05:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d1cbef0d1fe259a1387dac45046df36e SHA-1: d7578261f4ba9e3c17845a78af2715210761642f SHA-256: 196c0885e08899b8ae587af3115f5453068526f488509b6d3b94c0d6764383ff
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator' or 'game hack' lures for popular games. The primary malicious URL identified is https://netcdn.xyz/app/431946152/give-me-robux-game-hack. The document body, though partially corrupted, contains references to this URL and other similar lures, indicating a social engineering tactic to drive traffic to potentially harmful sites. No scripts were extracted, but the presence of multiple malicious redirector links and the ML classifier's high confidence score support the assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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/give-me-robux-game-hack In PDF document text
    • http://auto-mankel.de/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
    • http://auto-mankel.de/images/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://auto-mankel.de/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://auto-mankel.de/images/minecraft-images-free_GM479516143.pdfIn PDF document text
    • http://auto-mankel.de/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://auto-mankel.de/images/mcpe-hacks_GM479516143.pdfIn PDF document text
    • http://auto-mankel.de/images/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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
stream_003_off00004973.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4973 27964 bytes
SHA-256: 7e0e11f40714b571433936f26f0520b635f08ec2692975c135df3f3878f481fc
font_01_sfnt_off00008a6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A6A 18280 bytes
SHA-256: e362398b6270d689cef93245fc0cf2ec393033ad23c83783d887d20cd6b8949b

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