Malicious PDF — malware analysis report

Static analysis result for SHA-256 b93229f143e06538…

MALICIOUS

PDF

45.4 KB Created: 2021-06-03 06:02:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 415ae0d0abaa00242784706cb6615d67 SHA-1: 1d0eb4951386c59c46a5a8584ff991b0af0f9104 SHA-256: b93229f143e06538250eea58058f368ee1969d0ce09810463aa119928fb964c9
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external resources, including a known malicious redirector at 'https://netcdn.online/app/406889139/cm-spin-link-game-hack'. The document body and heuristics indicate a lure for game hacks and free currency, suggesting the links are intended to lead users to malicious sites for further exploitation or malware download. The use of an IP address literal in a URL also indicates suspicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.online/app/406889139/cm-spin-link-game-hack In PDF document text
    • http://183.91.70.11/repository/master-coin-hack-mod_GM406889139.pdfPDF link annotation
    • http://183.91.70.11/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/com-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/robux-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-hack-coin-master-in-pc_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-village-4_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/robux-download_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/rbx-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/robux-for-offers_GM431946152.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
stream_004_off00004ff0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FF0 26200 bytes
SHA-256: d812e134ddc0a35e2208322790e49f0f452c77f85ec4e4790683edd5d344a34d
font_01_sfnt_off00008b81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B81 19480 bytes
SHA-256: f4c3d14516317481d4a7fecd67c4901c5229688d7c0b9d04ca73f5ef6ab443ec

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