Malicious PDF — malware analysis report

Static analysis result for SHA-256 0690c3e0145783ec…

MALICIOUS

PDF

47.7 KB Created: 2021-05-20 03:14:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9d91231340a25085b5e527ece43ff72f SHA-1: ad91e897defb9db91833db514a25c14ed0440415 SHA-256: 0690c3e0145783ecaa2a292ce417671516ac2c67a79214a5bfd6cbe2c919473a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with 'free generator' or 'game hack' themes. The document body and embedded URLs suggest a social engineering attempt to trick users into visiting these malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a high likelihood of malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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.xyz/app/431946152/free-roblox-executor-no-key-game-hack In PDF document text
    • http://dygmotors.com.py/images/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/completed-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-roblox-intros_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004aa7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AA7 30256 bytes
SHA-256: 4b6952950f66e1e54864e632f9c422680b19d8415fca6cf76e9a809f03323b13
font_01_sfnt_off00008e50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E50 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off000097f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97F0 18372 bytes
SHA-256: dc47713ba6eb13f64d542fcf15a88c1c3b337790738a4cc5e94b1e08b5db33e2

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