Malicious PDF — malware analysis report

Static analysis result for SHA-256 d72094fbc21f97b0…

MALICIOUS

PDF

42.2 KB Created: 2020-03-29 08:32:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 797dccfb142076cbb0f45fc499829c7e SHA-1: 2cbd29e13b3f97768c55c5e87100d93bbe1812c6 SHA-256: d72094fbc21f97b0d92f770f088ff021ae257793b01aa58e9c5b5835f16b1c3d
96 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a technique commonly used in SEO spam and link farm schemes. The document body, while containing some garbled text, includes a reference to 'Que es la criminologia forense' and points to a URL that appears to be part of this link farm. No scripts were extracted from this sample, and the primary malicious activity appears to be directing users to a large number of external, potentially malicious, websites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://misssoutheastpageantry.us/uploads/1/3/0/2/130273978/130273978.html#que+es+la+criminologia+forense PDF link annotation
    • http://carnarvonautoelectrics.com/uploads/1/3/0/5/130588494/luvugobopa-depene-mixuwafovuvepiv.pdfIn PDF document text
    • http://affordableyardscapes.com/uploads/1/3/0/4/130435956/9169744.pdfIn PDF document text
    • http://nomnomgelato.com.au/uploads/1/3/0/7/130738620/sirajejinovo-sexeguzudanate-poramekeni-worikowilutut.pdfIn PDF document text
    • http://norwegianmade.com/uploads/1/3/0/4/130475997/texikin-vasodorefipinin.pdfIn PDF document text
    • http://softsea.fr/uploads/1/3/0/8/130873875/7232731.pdfIn PDF document text
    • http://chicagosfinestcontractors.com/uploads/1/3/0/5/130550809/8395153.pdfIn PDF document text
    • http://reddoorwines.com/uploads/1/3/0/5/130588597/beterazulegege-bozijuvoda-newopubimikeram.pdfIn PDF document text
    • http://oebap.com/uploads/1/3/0/8/130813654/jekisuzegiwavadamoka.pdfIn PDF document text
    • http://mshannahfreeman.com/uploads/1/3/0/7/130738974/9151292.pdfIn PDF document text
    • http://richardmcraelawyer.com/uploads/1/3/0/6/130639038/ddbe5235d788b49.pdfIn PDF document text
    • http://justmomandtheboys.com/uploads/1/3/0/5/130589385/xevufajatifiwoko.pdfIn PDF document text
    • http://alfrid.io/uploads/1/3/1/0/131070051/4783771.pdfIn PDF document text
    • http://ldnsoccerblog.net/uploads/1/3/0/5/130551794/3bbb27.pdfIn PDF document text
    • http://www.reneeyuengling.com/uploads/1/3/0/5/130545581/1eef32de00.pdfIn PDF document text
    • http://www.junctionpr.co.uk/uploads/1/3/0/3/130313638/39f865af4ba.pdfIn PDF document text
    • http://vapeheisen-newcastle.com/uploads/1/3/0/5/130544790/jekujatiliz.pdfIn PDF document text
    • http://samamonbattle.zensow.jp/uploads/1/3/0/6/130621826/lerepezosudaweto.pdfIn PDF document text
    • http://radoncfund.net/uploads/1/3/0/5/130541424/fodokiji_wabikone_lizevezu.pdfIn PDF document text
    • http://mail.motherwolfsoulandbody.com/uploads/1/3/0/2/130287919/578034.pdfIn PDF document text
    • http://abetterwaytobreathe.com/uploads/1/3/0/2/130270834/a5a314d45e96da1.pdfIn PDF document text
    • http://www.pokebattles.gfx-pro.net/uploads/1/3/0/7/130739017/zuponij.pdfIn PDF document text
    • http://discoverpdx.com/uploads/1/3/0/6/130639153/4559796.pdfIn PDF document text
    • http://midnight-bakes.com/uploads/1/3/0/5/130540116/keteseb.pdfIn PDF document text
    • http://aprilwjeffries.com/uploads/1/3/0/2/130289688/78cbe952.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007af1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF1 8356 bytes
SHA-256: 8e74751a9e23f448972ef696ddc59f70c5b99554f8614acbc5076c56beb5913c

Open this report in the interactive analyzer, or submit your own file for analysis.