Malicious PDF — malware analysis report

Static analysis result for SHA-256 04745331195c3424…

MALICIOUS

PDF

34.5 KB Created: 2021-06-22 10:02:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: fb1fee0ae003f48d88eb2bbd19f196d6 SHA-1: 6f57e33152cdd21167e7440c982dd78033ab6069 SHA-256: 04745331195c342488c282e6afa6ba55f8ccdd556ed6d15117c89b0b05c58dd4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game hacks and generators to entice users. It contains an embedded URI that redirects to a malicious site, likely to download a secondary payload or phish for credentials. The ML classifier strongly indicated maliciousness, and the PDF_GAME_HACK_REDIRECT_LURE heuristic confirms the deceptive nature of the document.

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/431946152/hack-avatar-game-hack PDF link annotation
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/free-games-like-roblox_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/minecraft-images-free_GM479516143.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/robux-download_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/dragons-life-hack-roblox_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/vehicle-simulator-roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/how-to-get-free-coins-on-tiktok_GM835599320.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_off000031e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E9 22792 bytes
SHA-256: 7d459ceb907698de6985f727a6359269174e58e4eaf8d3ef6192e4419f0c4e41
font_01_sfnt_off000063fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63FD 18292 bytes
SHA-256: 15fe832cb1a67f8b9b32bd16fa6b944b1b609e54d644db6923f8635996eddc7f

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