Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e621e4b3019a202…

MALICIOUS

PDF

44.7 KB Created: 2020-05-23 08:32:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4749261f86fbd25bcb123cb810a4c24b SHA-1: 1ee7fd5083b143d9af2ea52ec81aa3880e503d4b SHA-256: 8e621e4b3019a20293571155be09b79c18aed53531fc5c8e93d28f9978c218d3
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, suggesting a link farm or distribution network. The document body is heavily obfuscated but contains references to these URLs. No scripts were extracted, and the primary malicious activity appears to be the distribution of links to potentially malicious content.

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://74-123-73-216.mgwnet.com/uploads/1/3/0/7/130776381/130776381.html#exemple+lsu+cp
    • http://accelerateyourdegree.com/uploads/1/3/0/8/130813876/25db7d86ee.pdf
    • http://zipfarming.io/uploads/1/3/0/5/130550952/a5d817.pdf
    • http://musetechnolgies-unite2.com/uploads/1/3/0/5/130589391/7398259.pdf
    • http://therapywithjk.com/uploads/1/3/0/8/130874222/zevikaxuzigeguwad.pdf
    • http://janixcateringllc.com/uploads/1/3/0/7/130738554/vunodamumido-zuniseworid-garevetano-mazum.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_off00006bf1.bin
9b56a33a96ba4a16ab37c9b43283e2590a45a095a51db8445afb8ac9073b2a0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF1 12068 bytes
font_01_sfnt_off00009273.bin
028dbaa76d48ae99b02248bacea50134e27ed131f5dd39e25ac401de8961e19b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9273 16312 bytes

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