Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f3b22680bca5e0c…

MALICIOUS

PDF

42.5 KB Created: 2020-04-03 12:18:18 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6584d04415417726edb0846c5e432bc8 SHA-1: 1d8516bc05367725f9474f68c02db7e93e9170fc SHA-256: 4f3b22680bca5e0c1c701c0fc5299a3156a63f5541022fedb88250fc662c4807
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm designed to manipulate search engine results. The document body contains the phrase "Slap lesion icd 10 code", suggesting a potential lure or keyword stuffing tactic. The primary goal appears to be directing users to these external resources, which could host further malicious content or phishing pages.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://ourvotenow.org/uploads/1/3/1/4/131437293/131437293.html#slap+lesion+icd+10+code
    • http://ventrelease.com/uploads/1/3/0/3/130379317/4370990.pdf
    • http://legallitigationsolutions.com/uploads/1/3/0/6/130621374/nasinalabovawov_rivobase.pdf
    • http://gadget-catcher.com/uploads/1/3/0/5/130589048/woxup-piduxapew-vodegu.pdf
    • http://payverify.net/uploads/1/3/0/7/130776321/kujevavukok-zazorofev.pdf
    • http://richiwong.com/uploads/1/3/0/9/130968996/e65fde521.pdf
    • http://sunshinefloral.org/uploads/1/3/0/4/130489066/7531776.pdf
    • http://sunkistravel.com/uploads/1/3/0/4/130483416/17951.pdf
    • http://lamedicaloffice.com/uploads/1/3/0/6/130604292/8748848.pdf
    • http://themedicaregroup.com/uploads/1/3/0/4/130483858/9e240ad2f.pdf
    • http://beat-cbd.com/uploads/1/3/0/5/130543684/4808513.pdf
    • http://addiescreations.shop/uploads/1/3/1/4/131408139/folutoduxo_kenoraxij.pdf
    • http://amiture2master.com/uploads/1/3/0/7/130738971/xituzeruserozi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069a1.bin
228dd08deb3567403d62cff5301bac561b780bab1bcdf516ec6d00b38cba4c52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A1 7632 bytes
font_01_sfnt_off00008797.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8797 16204 bytes

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