Malicious PDF — malware analysis report

Static analysis result for SHA-256 05e6235d85793290…

MALICIOUS

PDF

45.4 KB Created: 2021-05-15 09:27:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cf1ff2c0866f0a9b8bcccc8d9225b893 SHA-1: 881aebf99a52158c55638a149eb2103e17fec7b4 SHA-256: 05e6235d8579329058ccfaac5d5940944ec9bc7bdce37f9ab576378fadaebe2f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a QR-code lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/free-mojang-account-with-minecraft-game-hack PDF link annotation
    • http://eau-petit-pont.com/images/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
    • http://eau-petit-pont.com/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://eau-petit-pont.com/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://eau-petit-pont.com/images/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • http://eau-petit-pont.com/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://eau-petit-pont.com/images/robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • http://eau-petit-pont.com/images/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://eau-petit-pont.com/images/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • http://eau-petit-pont.com/images/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://eau-petit-pont.com/images/coin-master-free-spins-8-14-2021_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
stream_003_off00004bff.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BFF 32104 bytes
SHA-256: bbe4ea60fc6820616fc2cba43fd0d0c408916403b3b8e6e1f53f663dfe195092
font_01_sfnt_off00008dfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFA 18688 bytes
SHA-256: 60143c81e88e14cdfb7631f3b4f61d617c046054e7601d01d98adb150323207f

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