Malicious PDF — malware analysis report

Static analysis result for SHA-256 17676af53e63ad43…

MALICIOUS

PDF

35.1 KB Created: 2021-06-30 23:51:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 0df3f654feec4665dbebe91d40e60da4 SHA-1: 19bbb768a50a4a5bc4f68da2e6e00788ad1c3d1c SHA-256: 17676af53e63ad43416db39618819ed3b6cb2405d382979ed9cc9d8abcfb312f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector at http://netcdn.co/app/431946152/how-to-hack-money-systems-on-roblox-tycoons-game-hack. These links are presented as lures for game hacks and free currency, indicating a phishing or scam attempt. The document's structure and embedded URLs suggest it is designed to redirect users to potentially malicious sites for further exploitation.

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/how-to-hack-money-systems-on-roblox-tycoons-game-hack In PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/how-do-you-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/knife-ability-test-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/20210-robux-promo-code-free_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-roblox-script-executor_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-robux-2021-youtube_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/giving-people-free-robux_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-hack-spin-ios_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/robux-hack-generator-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/roblox-points_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/how-to-be-all-black-in-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-tricks_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
font_00_sfnt_off000031fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FB 22100 bytes
SHA-256: 8505e9febed03863b3c6e4adae3ea70179ae2c60ef68a9162c0998abd6b6f2dd
font_01_sfnt_off000062bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BC 19560 bytes
SHA-256: 87b7dc6093b62e834672f427b3cfb10ec5b662cd0cfbc666d756b1bc01c4a8c0

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