Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce24e18deff8977e…

MALICIOUS

PDF

39.3 KB Created: 2020-03-29 08:25:15 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: ba8090820cf464433cd66811cbd48696 SHA-1: a91b64302accfe3b1623d1929432b6be48345e8b SHA-256: ce24e18deff8977e6abcadb1181ba20fa6f5ed5c4bfbd607fdbb624dbf2c0c55
96 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO poisoning tactic. The document body, though partially corrupted, indicates it is disguised as an instruction manual. The primary goal appears to be directing users to malicious websites, likely for phishing or malware distribution, as indicated by the PDF_SEO_LINK_FARM heuristic and the ML_NYX_PDF_MALICIOUS classification.

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://cityonloc.com/uploads/1/3/0/3/130379347/130379347.html#hpi+baja+5b+ss+instruction+manual PDF link annotation
    • http://grnd-apparel.com/uploads/1/3/0/3/130323409/6738845.pdfIn PDF document text
    • http://cuttingedgepoodles.com/uploads/1/3/0/4/130436337/3405836.pdfIn PDF document text
    • http://aegisve.com/uploads/1/3/0/2/130289347/5633018.pdfIn PDF document text
    • http://middleenglandmedia.com/uploads/1/3/0/7/130776197/9220533.pdfIn PDF document text
    • http://thelavendermermaid.com/uploads/1/3/0/6/130620690/5011de.pdfIn PDF document text
    • http://mta-sts.mail.iowamavericks.com/uploads/1/3/0/5/130539494/fuwuze-susemitenera-jijot.pdfIn PDF document text
    • http://ns.melindamorris.com/uploads/1/3/0/7/130739621/tasaso-porajexegugat.pdfIn PDF document text
    • http://dumpyourjunkremovals.com/uploads/1/3/1/3/131383726/rifejazizid.pdfIn PDF document text
    • http://gdkelectronics.com/uploads/1/3/0/6/130604933/pikarelome.pdfIn PDF document text
    • http://kennyminh.com/uploads/1/3/0/8/130873962/davunafoleder.pdfIn PDF document text
    • http://thomashartptnc.com/uploads/1/3/0/5/130589238/dapipezagobawud_budonuxoforor.pdfIn PDF document text
    • http://cpanel.oliveandyew.com/uploads/1/3/0/5/130590298/9198377.pdfIn PDF document text
    • http://volnaiskra.com/uploads/1/3/0/2/130289315/pimotofux_lilobegukinalom.pdfIn PDF document text
    • http://fietstaxischeveningen.nl/uploads/1/3/0/5/130589337/a46dc431.pdfIn PDF document text
    • http://sammiegeislerdpt.com/uploads/1/3/0/6/130621021/tamonom_vutasobejanare_nivowukata.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 2

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_off0000702e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702E 7740 bytes
SHA-256: 4e740ddf0606e1cc1d41aa7aea0666a3533be9e864bd4dafbd2f867e4d918cf7

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