Malicious PDF — malware analysis report

Static analysis result for SHA-256 a95395049e924ce1…

MALICIOUS

PDF

47.8 KB Created: 2021-05-14 13:57:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d61e349102bde7e1da33a820f7d09d3b SHA-1: abe9fc3d6f3e15ddb6e261ec5d8136b3830910d9 SHA-256: a95395049e924ce1580701ac312cf2da0b8906d4092bbbadc2fa02e7b7bed9a4
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, aiming to trick users into interacting with a malicious link. The embedded URL points to a site offering game hacks, further supporting a phishing or malware distribution scheme. While no scripts were directly extracted, the PDF structure and heuristics suggest it's designed to exploit user interaction to lead them to a malicious resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/can-i-play-roblox-for-free-game-hack PDF link annotation
    • http://eleveurs-autrement.fr/images/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://eleveurs-autrement.fr/images/coin-master-hack-app-ios-download_GM406889139.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_off00004946.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4946 29332 bytes
SHA-256: 1bb052e73713544996b1534a10653255e067f42eb3330a1a86880a712e798f48
font_01_sfnt_off00008dfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFA 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off000097f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97F6 18512 bytes
SHA-256: e7c9a4fe6870a820981f50b5265581c9404087a1dcd1112df2882e4616f18a1c

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