Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d326eb759ff6646…

MALICIOUS

PDF

43.0 KB Created: 2021-06-03 22:06:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 37f36678013f313471a3947939c8a557 SHA-1: fd0bd0035267b768fe47002e21382daaef448a31 SHA-256: 6d326eb759ff6646bd0bb04ad755e144c63d72f43a34cb1b10b19d28598cab6e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a known malicious domain, masquerading as game hacks or generators. The presence of these malicious links and the ML classifier's high confidence score indicate a phishing or redirection attempt. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lead the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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.online/app/1094591345/pokemon-go-free-619-game-hack In PDF document text
    • https://digilib.stieama.ac.id/repository/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-online-hack-generator_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-online-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hacks-iphone_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/tiktok-free-gas-hack_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50CC 23476 bytes
SHA-256: a1c000a4f4a8e8be064c52ac0c433b825687bc33aa139e6b236a3dbcd12b8421
font_01_sfnt_off000085b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B9 18280 bytes
SHA-256: fd4b367e74bff1e1eb7a24689c516db7e1efc38f00569be1750e39ef8cff8dbc

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