Malicious PDF — malware analysis report

Static analysis result for SHA-256 237af08be366f21e…

MALICIOUS

PDF

63.7 KB Created: 2020-03-29 13:08:57 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 51cfcc67b8e4cc3503deff2fc1c5a4ca SHA-1: 8515bd6c89843125713fabba534938bd16c6384f SHA-256: 237af08be366f21e649eded91762ddd44f9a26ca6f961110e1540ce8acf588d1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure for 'Elna sewing machine manuals free download' and exhibits a PDF link farm heuristic, indicating it hosts numerous external links. The primary heuristic identified a mass of external PDF links, with 'fourfourteendesigns.com' being a dominant host. The document body itself is heavily obfuscated but contains references to the lure and the PDF link farm.

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://beingself-centered.com/uploads/1/3/1/4/131438260/131438260.html#elna+sewing+machine+manuals+free+download
    • http://fourfourteendesigns.com/uploads/1/3/0/8/130814286/manatowesu-venilij.pdf
    • http://algerimages.com/uploads/1/3/0/9/130969707/52117f4.pdf
    • http://captureyourjourneys.com/uploads/1/3/0/5/130544751/eddcff18cd.pdf
    • http://destinydreams.net/uploads/1/3/0/6/130603776/29212.pdf
    • http://urbanfood.org/uploads/1/3/0/2/130289319/xixum-sikud.pdf
    • http://banglesbytokelia.com/uploads/1/3/0/8/130874493/zukukapodepogojezabi.pdf
    • http://capitolhillclubmembers.com/uploads/1/3/0/9/130969003/2dd47e.pdf
    • http://2oakgladecourt.com/uploads/1/3/0/3/130379138/4540390.pdf
    • http://taxcompetitionui.com/uploads/1/3/0/9/130969131/rojoxibekumaf-kujibele.pdf
    • http://therhinestoneanchor.com/uploads/1/3/0/8/130814232/rimogudilavexo-murax-ninem.pdf
    • http://essentialoilfacts.info/uploads/1/3/0/6/130621429/9483297.pdf
    • http://marissakalo.net/uploads/1/3/0/2/130287862/kutakos.pdf
    • http://prettyinwhite.net/uploads/1/3/0/5/130540874/72e22328338907b.pdf
    • http://naturalane.com/uploads/1/3/0/7/130738625/kefafelolefe-lafekizodav-nexagesunaboxas-dizokawugowag.pdf
    • http://emscookies.net/uploads/1/3/0/3/130379135/bewisu.pdf
    • http://technicalservicesllc.org/uploads/1/3/0/4/130488152/beselowulezemo_tafuxib_zisiwodarexides_wulezi.pdf
    • http://bocacine.net/uploads/1/3/1/0/131071063/lodef.pdf
    • http://faithfullyfitdaily.com/uploads/1/3/0/7/130776757/xinewudimo.pdf
    • http://thehumbleearth.com/uploads/1/3/0/6/130604801/renexemuzadoxolu.pdf
    • http://my-sh-online.com/uploads/1/3/0/8/130813881/mixuvekibari.pdf
    • http://creditdiver.com/uploads/1/3/0/6/130603889/9122727.pdf
    • http://fumerchs.com/uploads/1/3/0/6/130621152/nanozekefate_dezel_jumoke_rabamibujokuroj.pdf
    • http://engelenweij.nl/uploads/1/3/0/6/130639593/3cbf7.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_off0000cf9c.bin
d477355ec3f1dd4aa3482dca984a74cd333bafda0d31a98472ade54db6a73317		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF9C 8668 bytes

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