Malicious PDF — malware analysis report

Static analysis result for SHA-256 711dc33b0ec86f51…

MALICIOUS

PDF

38.3 KB Created: 2021-05-25 09:35:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9ec02915ed8a64484c4ac492c8445531 SHA-1: 007e43ec2324ed0f300d9b5ef1b53088f41ff63e SHA-256: 711dc33b0ec86f510c578e5e88a8ecb9f9f934275852eb152175699bbc408306
160 Risk Score

Malware Insights

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

The PDF file contains multiple links to known malicious redirectors, disguised as "free generator" or "game hack" lures. The document body explicitly contains calls to action like 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the phishing pretext. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect the user to malicious sites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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-hacker-skin-game-hack In PDF document text
    • http://jdleducation.com/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://jdleducation.com/images/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000033c8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33C8 29732 bytes
SHA-256: 3346eaac355fab8855b50847f393d3799102ee472e3d2ba11d4d5b907f9820f5
font_01_sfnt_off0000766f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766F 17740 bytes
SHA-256: 91fe2762de83ff68ec278d498415159af7d0ffb5c1d0151dc7294afbb77550eb

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