Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1e4834f2bf30979…

MALICIOUS

PDF

37.7 KB Created: 2021-05-16 07:02:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: f5d7f656ecc80ed3205832be00c72300 SHA-1: 09bb67fcafa516eb3fdf790260aa3356728883de SHA-256: e1e4834f2bf309799a48d8e5b1008f94df7d049c32682d9081ebc80dfad39e86
170 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Minecraft Name Tag Hacks' and a prominent 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call to action. It embeds a link to a known malicious redirector, https://netcdn.xyz/app/479516143/minecraft-name-tag-hacks-game-hack, which is likely used to deliver a second-stage payload. The 'SE_CLICKFIX' heuristic indicates the document instructs users to run commands, further supporting a social engineering attack aimed at bypassing security measures.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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.
  • 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
  • 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-name-tag-hacks-game-hack In PDF document text
    • https://www.youtIn 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_off00003430.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3430 27928 bytes
SHA-256: 2b40f8353715df52a927aeda5d8cd55b0645df52fcd3e2ed91c3a2d5b97a92aa
font_01_sfnt_off00007246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7246 18288 bytes
SHA-256: eb7ed4260d6d64c3cd9f3242d6af3157cea31df7eff6e4be90ec8e6c005c47d1

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