Malicious PDF — malware analysis report

Static analysis result for SHA-256 bea85ef1ac73ede2…

MALICIOUS

PDF

35.6 KB Created: 2021-05-23 19:41:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d8ac63f0334964dc6fb731ce5e57ca75 SHA-1: e3a2eca76030f8cc4c088053fc2f867827cfaa0c SHA-256: bea85ef1ac73ede2d8240fc6368fce1f4745b0cc144c4302f06fcfd6ebb87eb7
170 Risk Score

Malware Insights

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

The PDF contains a lure for a 'free generator / game hack' which links to known malicious redirector infrastructure. The document body also contains a call-to-action phrase and instructs the user to install a remote-support tool, indicating a social engineering attempt to gain access. No scripts were extracted from this sample, but the embedded URL and the lure suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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-free-unblocked-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_002_off0000303c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x303C 25260 bytes
SHA-256: 418c2c380db77c3ed64dfe91d438eafa4423c5cc78bb2f24d5b4562412195d56
font_01_sfnt_off0000698d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x698D 18472 bytes
SHA-256: 4446ec9a14b3bfac30f066e0e962bc7f96b5cea98edad6ed93b9652aaf8297cb