Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c68bf4b2f41f934…

MALICIOUS

PDF

37.8 KB Created: 2021-05-12 06:33:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: bab597777202170f4bc3e79fb46b97a5 SHA-1: 97c480a2fe976f42c03de12702cf758739a76f23 SHA-256: 0c68bf4b2f41f934b479587497dffb66a065392edb82a3399892a26de261a65d
92 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it is a social engineering lure, specifically a 'game hack' redirector, designed to trick users into clicking malicious links. The document body and embedded artifacts suggest an attempt to disguise a malicious link as a download or generator for Minecraft hacks. The presence of external URIs and the 'ClickFix' heuristic further support this attack pattern, likely leading to a scam or malware download.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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.
  • 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-download-minecraft-hacks-game-hack PDF link annotation
    • https://playhack.in/minecraftIn 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_off0000376a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x376A 25620 bytes
SHA-256: de9103648335223c6a9adac29199d714946d1340c6f165a8113cda6dfb254c14
font_01_sfnt_off0000721d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x721D 18460 bytes
SHA-256: 201e47ea1bc759f6ab60629fe707baeeae03fa46224cbd2752ecc215bd4960d2

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