Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a3c5385aa3599d7…

MALICIOUS

PDF

36.4 KB Created: 2021-05-21 11:03:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b17b981a087ca71edb169aec4bc12dba SHA-1: cca9b43df1639329afc4818dde195815c01c1bf6 SHA-256: 3a3c5385aa3599d7b0a08a68796e14014f529a866eac9065d91867ccee88369e
82 Risk Score

Malware Insights

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

The PDF document uses social engineering tactics, specifically a "ClickFix" lure, to trick users into executing commands or visiting malicious URLs. The document body and embedded links promote "Minecraft Hacks" and point to URLs that likely host malware or further phishing content. The presence of embedded URLs and the ClickFix heuristic indicate an attempt to bypass security measures and deliver a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/minecraft-hacks-pc-game-hack PDF link annotation
    • http://perpustakaan.fk.unila.ac.id/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.fk.unila.ac.id/repository/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.fk.unila.ac.id/repository/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://perpustakaan.fk.unila.ac.id/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://perpustakaan.fk.unila.ac.id/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000336f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x336F 27164 bytes
SHA-256: 472e8d995d0a3ffeaa6e142476bc658ae1294ab217735b215db0b61f1d383588
font_01_sfnt_off00006e99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E99 17892 bytes
SHA-256: 4b573e8fc82ea506cc897612561133da94e30df5f60715d4b9731bc7aae59dad

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