Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef7d4173002d764…

MALICIOUS

PDF

45.5 KB Created: 2021-06-10 22:08:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 73a3f9926a9da67b419028acfbd37017 SHA-1: 6724050d94d4039dd796ba018078a7401cefc340 SHA-256: 0ef7d4173002d7647032ab70398b90cc0833dc3111e15fcd6efbc192426c0357
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically targeting users interested in game hacks and free generators. The primary link identified, https://netcdn.tw/app/431946152/assasin-2-roblox-hack-khnif-game-hack, is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at leading users to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.tw/app/431946152/assasin-2-roblox-hack-khnif-game-hack In PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/cool-roblox-avatar-free_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-robux-without-human-veritfication_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-roblox-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-tycoon-money-hack-2021_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/cuenta-hackeada-roblox_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/robux-code-hack-2021_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/games-that-give-out-free-robux_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-cheat-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-check-cashed-v7-hacks_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-robux-hack-website_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-avatar-free-girl_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-hack-apk-mod_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/how-to-hack-robux-with-cheat-engine-63_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/minecraft-free-no-download_GM479516143.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_off00005404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5404 25152 bytes
SHA-256: 9bebed5b0b58e33054159e2b207dc4b07a7865e00050b9fbdde3a4cc735255e7
font_01_sfnt_off00008e61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E61 18592 bytes
SHA-256: 1042e22df7025e44cc7c10c18dae86a936e09c1fd436f05d19fbc6df7ac4d071

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