Malicious PDF — malware analysis report

Static analysis result for SHA-256 0269ec5086777ffe…

MALICIOUS

PDF

35.5 KB Created: 2021-06-25 19:51:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3ece9a110f8c29c1487a9f5afde761f7 SHA-1: 5b248052e75e160ff55bcb38c051969f3869fd42 SHA-256: 0269ec5086777ffe5523f8c96ee6c8c6f636e4f00bb786e26f619babc2a01fa9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to known malicious redirectors, disguised as generators for free in-game currency and hacks. The primary lure is 'how-to-get-free-robux-on-mobile-2021-game-hack', which points to the malicious infrastructure. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious sites.

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/how-to-get-free-robux-on-mobile-2021-game-hack In PDF document text
    • https://deutsch-study.com/image/data/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/roblox-free-recompense_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/how-to-cheat-in-roblox-pet-simulator-2021_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-roblox-script-corrector-discord_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/pubg-uc-zip_GM1330123889.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/7-year-old-roblox_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/cheat-all-game-money-roblox_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/giyfcom-roblox-hack_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-robux-picture_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3218 22264 bytes
SHA-256: bd38cfb95dd1282588ced70ba4306c3520161c4325fc4aa4a0289d50285e18fe
font_01_sfnt_off00006382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6382 19776 bytes
SHA-256: 7b0e66eee0a697deae6644a0e52a74fcbb8a0a6ad84f5405c76b8df2a8522466

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