Malicious PDF — malware analysis report

Static analysis result for SHA-256 371e1d0c7dba103d…

MALICIOUS

PDF

38.6 KB Created: 2021-05-21 10:34:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3650495fb830a5ca55982799096c4825 SHA-1: bf5d537735fe9116b6a84f254a3693de5ff3e3bc SHA-256: 371e1d0c7dba103dfe4083641b22094718e929edd117f44d06eebde528b843b0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, with one specifically identified as a malicious redirector for game hacks. The document body also contains a call-to-action phrase, 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites, likely to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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-auto-miner-hack-game-hack In PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/wurst-18_GM479516143.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/tiktok-app-install-free-jio-phone_GM835599320.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/free-robux-for-kids-no-verification_GM431946152.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_off000034cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34CD 29192 bytes
SHA-256: 4f0dff92315b686c4aba521b84da4afb30a3e40fab2a9e2ef9d059dff7677207
font_01_sfnt_off00007691.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7691 18020 bytes
SHA-256: 86e6774633c009864cf2e6370ccb0e3f934264dfbdd37e66ab21c5f065fadd8b

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