Malicious PDF — malware analysis report

Static analysis result for SHA-256 85429493f0d09cbd…

MALICIOUS

PDF

43.6 KB Created: 2021-05-19 04:33:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 64d1b16ec884e88a073f702504c69e34 SHA-1: 0bc0be356c7cb474618411e6f3f43b3570f5e34a SHA-256: 85429493f0d09cbdb9c8e463dca49f08a0d5e0bd37d1937ce4d63845f0a26791
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure for game hacks and exploits, directly linking to external URLs that likely host malicious content or phishing pages. The presence of a 'secret recovery' lure heuristic indicates a strong attempt to trick users into revealing sensitive information. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a potential for JavaScript execution to facilitate the download or redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/406889139/legit-coin-master-hack-site-zyngaplayerforums.com-game-hack PDF link annotation
    • https://javisintlmedia.com/images/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/xray-hack_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-change-roblox-name-for-free_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/hack-coin-master-game_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-wings_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-card-hack-apk_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-hack-software_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_off0000498b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498B 26300 bytes
SHA-256: 59dac8b34d6823fd74b6c7ea91b427dd9c9d4e09e0c56472bfff97be869e737e
font_01_sfnt_off000085f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F6 18996 bytes
SHA-256: c7201ec4c3a8de5860eeb2e6c9e6c90ee147184e9a3338a06e2bc3af5219e027

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