Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2b20cfb0c2def84…

MALICIOUS

PDF

42.2 KB Created: 2021-05-16 05:56:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a5dbb82bd1103aea60d49189f9e8d644 SHA-1: 8098a711da660cecd2963592ef3fda66a6adfb47 SHA-256: d2b20cfb0c2def8463873c972ee84eccda85b1dc41cdd0e1a658b0dbea4ea342
82 Risk Score

Malware Insights

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

The PDF document contains multiple links, including one pointing to a 'free generator / game hack' lure. The document body also contains similar lures for game-related items and hacks. These elements strongly suggest a social engineering attack aimed at tricking users into downloading malicious content or visiting phishing sites. No scripts were extracted, but the PDF structure and embedded URIs indicate a malicious intent to redirect users to potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/479516143/minecraft-bedrock-free-download-game-hack PDF link annotation
    • https://i-photo7.com/image/data/files/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-hack-site_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-survey_GM431946152.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
stream_003_off0000492f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x492F 24948 bytes
SHA-256: 6201e4c7953d7099137d466ab28f58f703f1907f0a62ab41041e2dde1436f6e7
font_01_sfnt_off00008144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8144 18676 bytes
SHA-256: 46ea590fdaaf2f51a0970c42df6cd5b4a0b4c3c6274823dd639632707821995f

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