Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca1fc31fb72f20aa…

MALICIOUS

PDF

44.7 KB Created: 2021-05-17 07:23:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e2b18347b8c26c0222c08a3108380712 SHA-1: 51d0d3d7d8caafaeee3b61791c0e0f2698a92863 SHA-256: ca1fc31fb72f20aa99bf7c010a21374f696cbea4c6fc72b30b083aeed05cda09
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains lures for free in-game currency and game hacks, directing users to external URLs. The 'SE_CLICKFIX' heuristic indicates the document likely instructs the user to manually execute a command, bypassing typical macro restrictions. While no scripts were explicitly extracted, the presence of external URLs and social engineering lures suggests an attempt to redirect the user to a malicious site or trigger a download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 4

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/how-to-play-minecraft-for-free-on-pc-game-hack PDF link annotation
    • http://panaceafamilymedicine.com/images/give-free-robux_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/100-robux_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-robux-real_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/roblox-c9m_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/hacks-for-coin-master_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_off000049a0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49A0 25160 bytes
SHA-256: 4390d750e63f071c97a289d359797d5f17a4ef2e0e04595ef1c4591e3e7515b1
font_01_sfnt_off00008260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8260 2884 bytes
SHA-256: 81f45ac24dfec3c01340b88cfc4a0a4b5aa1afaf1718fdb2a66a158506888309
font_02_sfnt_off00008c46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C46 18284 bytes
SHA-256: 805db6617afe2d237489c8bb7c2b5cc2832d34670fdae12a8b82fd0acde92e0c

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