Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eae5239ec2b04f4…

MALICIOUS

PDF

35.0 KB Created: 2021-06-25 00:41:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 720f47c77de4bfbd3230ccb4012fd2e4 SHA-1: c91090e00df87b1a27255b29423b8729c9ac9487 SHA-256: 4eae5239ec2b04f460a8906583ae4ba56f88e48736846ca15dd8470fcb1aa395
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of free game hacks and accounts. The primary link, http://netcdn.co/app/431946152/free-hacked-accounts-for-roblox-game-hack, is associated with redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malicious content or malware download.

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/free-hacked-accounts-for-roblox-game-hack In PDF document text
    • https://www.labdagatismk1pundong.com/repository/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/hack-roblox-jjsploit_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/tiktok-free-64-bit_GM835599320.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/how-to-get-free-roblox-money-2021_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/cheat-roblox-jailbreak-glitches_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/roblox-credit-card-payment-hack_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/best-free-roblox-flight-simulators_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off0000310c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x310C 22508 bytes
SHA-256: c42c882a94418559732e1797f939b2cb5817ef27a381c744410fb3dffee49393
font_01_sfnt_off0000635d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635D 19240 bytes
SHA-256: a3f2c61b0d32c652b771b0d64d695dce4e1433f6a5bf96588c7dbb72845a26b5

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