Malicious PDF — malware analysis report

Static analysis result for SHA-256 29b0ba916e702ef2…

MALICIOUS

PDF

39.9 KB Created: 2021-05-23 07:11:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 2014107b4b7537ef4ffc9c33f0e59dfb SHA-1: 597544b813c169828a62a0b2511cac77a195b11b SHA-256: 29b0ba916e702ef284bb9ba3fc31ea60fb17a196b35e15e6956e51f7e512f229
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors and lures users with game-related cheats. The primary malicious URL is https://netcdn.xyz/app/479516143/minecraft-server-hacks-game-hack, which is presented as a 'Minecraft Server Hacks' generator. The document body also contains other URLs pointing to similar lures, suggesting a phishing or scam campaign. No scripts were extracted, but the PDF structure and embedded links indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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-server-hacks-game-hack In PDF document text
    • http://ehma.com/images/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://ehma.com/images/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • http://ehma.com/images/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://ehma.com/images/roblox-free-models_GM431946152.pdfIn PDF document text
    • http://ehma.com/images/free-robux-on-ipad_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31C7 30236 bytes
SHA-256: e728a21e7f5b72e6c004cfb4c760a7a93d4d362d22ac2213fd7edbab021f8ac0
font_01_sfnt_off0000712e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x712E 3120 bytes
SHA-256: fef280a63c8455fc9764875dfdf0f25ac43f408ac396c164540701ab46c42097
font_02_sfnt_off00007bdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BDF 17852 bytes
SHA-256: d08e9f99218473ecffc4f3e4fddc043c571e48cf04331ee5ff23a4dc6866f563

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