Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c2238b52fd524b1…

MALICIOUS

PDF

41.5 KB Created: 2020-05-12 07:42:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 963881dc82b3fec9ffef739e36a27680 SHA-1: dfde101df3b2c8821dcd95fd99451f10a16a0f56 SHA-256: 6c2238b52fd524b17fcf6085cc3946396647a37cb02cf0dcca91dc6d791ee430
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The ML classifier also flagged this PDF as malicious with high confidence. The primary goal appears to be directing users to external resources, potentially for malicious purposes.

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://healthpsychologyconsulting.net/uploads/1/3/1/4/131453698/131453698.html#classic+wow+rogue+poison+guide
    • http://h2oweddings.com/uploads/1/3/0/6/130639626/xebudamolexem-komum-bupariboxu-bejuxu.pdf
    • http://5xsdebestway2travel.com/uploads/1/3/1/4/131452982/nupig.pdf
    • http://redrosebyceec.com/uploads/1/3/0/2/130272977/bivaw-jimepeb-kobab.pdf
    • http://oculus.be/uploads/1/3/1/4/131482995/bijabisibabexi_sirijipidifiz_degaxusuv_ruwox.pdf
    • http://incrediblehomedeal.com/uploads/1/3/1/4/131406607/9199021.pdf
    • http://infinityenterprisesmedia.com/uploads/1/3/0/2/130271045/mawizobifuvovewanu.pdf
    • http://nashvillerollingpincompany.com/uploads/1/3/0/6/130621689/pelule_mubasetixavulip_gimitirafim_mumobupedetole.pdf
    • http://saskatooncityofbridges.com/uploads/1/3/0/2/130287940/9741678.pdf
    • http://jemkik.net/uploads/1/3/1/4/131407388/gejilab_novudutosewuva_nugewope_razidebilelus.pdf
    • http://a-beautiful-mind.org/uploads/1/3/1/4/131406569/magejojanupater-favakitumotumaf.pdf
    • http://kj2camp.com/uploads/1/3/0/5/130550722/a152459e0.pdf
    • http://reddinglegalteam.com/uploads/1/3/0/7/130775953/1142616.pdf
    • http://eatatvivianscafe.com/uploads/1/3/0/8/130814200/gabiwolevefifoluv.pdf
    • http://allproc.com/uploads/1/3/1/3/131383562/samoluga-zepelelidam-winumigi-xumemewux.pdf
    • http://juanitamaude.com/uploads/1/3/1/6/131637555/pawizibexilif.pdf
    • http://gaedi.is/uploads/1/3/0/6/130620835/zefusowekizisexawazo.pdf
    • http://webstersnc.com/uploads/1/3/0/7/130775282/9823a72495fc.pdf
    • http://bvei.com/uploads/1/3/0/7/130775192/befiravu.pdf
    • http://kaijade.com/uploads/1/3/1/4/131411245/3831719.pdf
    • http://adelaidedeepcleans.com/uploads/1/3/1/3/131379021/firotemowow.pdf
    • http://mandrymarketing.com/uploads/1/3/0/5/130540823/gujeradagegatis.pdf
    • http://groeikracht-psychotherapie.org/uploads/1/3/0/6/130620506/xotiwotu.pdf
    • http://frayedneststudio.ca/uploads/1/3/0/5/130590558/vilufof_zefubisubuze.pdf
    • http://ianchinich.com/uploads/1/3/0/4/130483858/rudig.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007515.bin
93bd209d93066ab966d1360a3d49fde9eb27a532148f9f4b82efb8040e34e4de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7515 10760 bytes

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