Malicious PDF — malware analysis report

Static analysis result for SHA-256 e20f4aff773864c9…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 16:02:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 202d8dce6796696464f35b2b697f2545 SHA-1: 7bdbf81a56177641d7798b0c611561c9e04db4bb SHA-256: e20f4aff773864c973f22171b2a7f6dfc7d47868802707e9ea30f671cd1254ac
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses a lure related to free game items and hacks, specifically mentioning Minecraft and Roblox. It contains a high-risk heuristic firing for a 'free generator / game hack' redirector pointing to the URL http://netcdn.co/app/479516143/minecraft-java-edition-key-free-game-hack. This URL is likely used to download a second-stage payload or exploit. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/479516143/minecraft-java-edition-key-free-game-hack PDF link annotation
    • https://www.advancissurgical.com/uploads/files/files/coin-master-free-account_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-re_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-have-a-mad-city-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-hack-download-android_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-robux-cheat-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-coin-master-s_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/robux-free-co_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/pokemon-go-free-7-day-streak_GM1094591345.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-hack-no-verification-ios_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-redeem-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/donttazemebro-roblox-person-hes-a-hacker_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/hack-coin-master-online-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000313c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313C 22676 bytes
SHA-256: 12c45a1cd89802ffd11fce207a420c85efabd82bf312ef8f2c2eac378f774223
font_01_sfnt_off0000637d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637D 18632 bytes
SHA-256: 793db133bcf07d4f4afd368b9080e48ab24207481f2b317929361f3eca0873b8

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