Malicious PDF — malware analysis report

Static analysis result for SHA-256 817759e100e9aa58…

MALICIOUS

PDF

35.6 KB Created: 2021-05-12 19:33:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 13cdb614340c19a37d6514bb1b278624 SHA-1: 5aa6f54746b9f7bbed14ddaedca9aaac3da0d495 SHA-256: 817759e100e9aa584d4fb521f93178506707bbda4ad15bbd3d7dbd3e0b64bbac
170 Risk Score

Malware Insights

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

This PDF document contains a critical heuristic firing for a redirector link disguised as a 'free generator / game hack'. The document body explicitly contains the text 'Minecraft For Laptop Free' and 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', further reinforcing the lure. The embedded URL leads to known malicious infrastructure, suggesting the document is part of a phishing or scam campaign designed to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0265

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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
  • 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-for-laptop-free-game-hack In 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_off000032fc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32FC 24888 bytes
SHA-256: de239645b7c0e059e7e0ab24f23e0946b67eb735350c7e3b0e595f44f6b6af6f
font_01_sfnt_off00006b3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3C 17884 bytes
SHA-256: 9e24751bd8abf3c905aaa0f9e5c5b681bc9bef6aedb2106afbecb5aef0f6c4b9