Malicious PDF — malware analysis report

Static analysis result for SHA-256 15a93424538dadb4…

MALICIOUS

PDF

37.2 KB Created: 2021-05-25 06:37:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 52a87e713a3c387332d97ee2dbc419e8 SHA-1: 64c35b220a3efeeccd9c7b1817175417cf39953b SHA-256: 15a93424538dadb4adb9bcd6e8da925db550e9edf0814d0a29ca48447e505d86
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting a 'free generator / game hack' for Minecraft. The document body and heuristics confirm the lure is to trick users into clicking these links. No scripts were extracted, but the presence of malicious redirector links indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • 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.
  • 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-java-edition-redeem-code-free-2021-game-hack In PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/master-free-spin_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/ww-roblox-come_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-hack-apk-app_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/i-robux_GM431946152.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_002_off00003486.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3486 25496 bytes
SHA-256: e39e350de78837093fb50400cdf897ba0a1d27d8e63930bddab0976dca4a6a80
font_01_sfnt_off00006e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E5E 18824 bytes
SHA-256: 3e84327372ede1fb0dd75240746e2dc46639f78069d280fe972667d8e0b4261e

Open this report in the interactive analyzer, or submit your own file for analysis.