Malicious PDF — malware analysis report

Static analysis result for SHA-256 685e406b1732c880…

MALICIOUS

PDF

35.3 KB Created: 2021-06-20 16:54:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e480c55c8ee445784e13c25180307224 SHA-1: b083ed23682a1a872c57a8c3f5a4c8089d1988be SHA-256: 685e406b1732c880471d6657910accd538b2d12a9f8929bb85b1fd0e14918d5c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one identified as a malicious redirector, that promise game hacks and free currency for popular games. The document body and heuristics indicate a lure to trick users into clicking these links, likely leading to further malicious content or scams. No scripts were extracted, but the presence of malicious redirector links and the lure suggest a phishing or scam attempt.

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/i-hacked-this-person-on-roblox-game-hack In PDF document text
    • https://financia-business-school.com/static/upload/files/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-cheat-with-fake-paypal-checkout_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-hack-mad-games-roblox_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-for-pc-free-download_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-hack-download-ios_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_off000031a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A7 23068 bytes
SHA-256: 6c266c5fdb8ecab8a7d5ed0876bb21f45b9526cf1ee6c86e0531be2b1874139a
font_01_sfnt_off0000647f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647F 19272 bytes
SHA-256: c78e7def00bd182651959e6af5be6b6834b310f69d5f1403be9e922c5425f75f

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