Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd200d3973853eaa…

MALICIOUS

PDF

40.1 KB Created: 2020-04-07 18:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 778380536f39ddd75e1116b64e59b390 SHA-1: 478ad49a520acdaee3e0e81a727345f778c0896f SHA-256: cd200d3973853eaac82e111c78394f4de77cc72315cbe907818b14b8d80afa1f
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to host malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a likely attempt to direct users to potentially harmful websites. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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://ukiahpost.net/uploads/1/3/0/6/130639304/130639304.html#axcel+papain+10000+usp+dosage+unifor
    • http://zabalastudios.us/uploads/1/3/0/8/130874634/kabukoxara.pdf
    • http://keepingyouorganized.net/uploads/1/3/0/7/130740432/sexozuzefafu_pagili_wegedajez_lopemuxuvixid.pdf
    • http://newproductsgooddeals.com/uploads/1/3/0/4/130435657/b1d9791d.pdf
    • http://2rento.com/uploads/1/3/0/5/130539315/f723836053578.pdf
    • http://industriyamarikina.com/uploads/1/3/0/6/130621362/zajepobowa.pdf
    • http://scratchiecat.com/uploads/1/3/1/0/131071125/zitajevok_jobegoratup_tojowevopolepe.pdf
    • http://imfireworks.com/uploads/1/3/0/7/130740623/vevofibevewuw_nuterigudebes.pdf
    • http://elentrenamientoeuropeo.com/uploads/1/3/0/4/130483872/4889406.pdf
    • http://emotolytics.com/uploads/1/3/0/7/130775923/4707cfeec0549b.pdf
    • http://tamman.net/uploads/1/3/0/4/130477448/refiv_ruvebadazuk_potowuto.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073a4.bin
b2f7e2b0c31fe90e16bf5f581c1374bd44c062a9c842cc4c6ce620390fe1b6f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73A4 8364 bytes

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