Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ff76fcbd18e772…

MALICIOUS

PDF

35.7 KB Created: 2021-07-01 06:40:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: af32fdccafb3b2c8e88bb2856b1052de SHA-1: d12457a397bdaa037b54f5f8b0cde776cde7735b SHA-256: b6ff76fcbd18e7721cd6c97f7e984e2234254b89711d4b5969d51044fc5db98c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The heuristic firings indicate that the document is designed as a lure to redirect users to potentially harmful content. While no scripts were explicitly extracted, the embedded URLs and the nature of 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/roblox-prison-lifewall-hacking-2021-game-hack In PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/roblox-robux_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/how-to-hack-people-for-revenge-on-roblox_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-kick-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-robux-no-vertification-no-survey-no-pasword_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-robux-no-pass-or-survey_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-robux-picture_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/robux-cheat-2021_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/daily-spin_GM406889139.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/hack-adopt-me-roblox-2021_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/20219-walkspeed-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/free-nfl-skin-in-roblox_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/lumber-tycoon-hack-roblox_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/wurst-112_GM479516143.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/cheat-jailbreak-roblox-2021_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/what-is-the-best-game-to-hack-on-roblox_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/roblox-breaking-point-fullbright-hack_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/cute-roblox-outfits-free_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/how-to-get-free-shirts-on-roblox-2021-without-bc_GM431946152.pdfIn PDF document text
    • https://balibalotour.com/new/public/ckfinder/userfiles/files/how-to-get-robux-on-roblox_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_off000033c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C9 22272 bytes
SHA-256: 144bfe233ca9dfee22da089ffcdbe0aba19af0cdd67807b4d175afa0153eca9c
font_01_sfnt_off0000651c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x651C 19496 bytes
SHA-256: db39f8bfac49c1bade07c5062f52fe4dc3ec296b655b1b69a7dee6afc85a1419

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