Malicious PDF — malware analysis report

Static analysis result for SHA-256 80b31887b0338ba3…

MALICIOUS

PDF

34.0 KB Created: 2021-06-18 02:34:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 6eb75a0659fc01ce4196e064057290f1 SHA-1: c87a0eb541b5c27559406d65ee53b57d8d8aeb15 SHA-256: 80b31887b0338ba3484433adca95b7e90483a695a6f0de6a0f93e453f503a6b8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, masquerading as generators for popular games like Roblox and Coin Master. The document body explicitly mentions 'Roblox Hack Blox Piece' and includes the malicious URL, indicating a lure to trick users into visiting a potentially harmful site. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/roblox-hack-blox-piece-game-hack In PDF document text
    • https://eleganceautospa.ca/images/free-robux-today-2021_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://eleganceautospa.ca/images/roblox-player-cheating_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/coin-master-free-snacks-link_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-to-get-free-robux-using-free-codes_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/frost-guard-general-roblox-free_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/roblox-card-codes-free-2021_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/roblox-studio-free-robux_GM431946152.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_off00002f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F77 22300 bytes
SHA-256: 94bc35393adb333436bf2be9be2ca45018359bfc45abb1c4070f56ddd8556d45
font_01_sfnt_off000060bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BF 18744 bytes
SHA-256: db1dcdbfae01c63c2c0dffa03b8c4803f80d053e16c33e0f283507da35ab9898

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