Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ab01394c78645c4…

MALICIOUS

PDF

41.0 KB Created: 2020-03-12 06:27:54 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 04d12f39b29065cb45daad3a45b526c7 SHA-1: ec702773ddb99071f43d3f774876697ff39eb7a4 SHA-256: 2ab01394c78645c41db62eb6fb9ebbff16861df5f49e08be154f71d5bed93f4f
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO poisoning tactic. The primary heuristic firing indicates a mass of external PDF links, with the dominant host being macherieboutique.com. The document body, though partially corrupted, contains a URL related to 'flat tummy exercise for beginners', which is likely a lure to direct the user to malicious content hosted on the identified domains.

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://vwlo3y.salon225.com/uploads/1/3/0/7/130739513/130739513.html#flat+tummy+exercise+for+beginners PDF link annotation
    • http://macherieboutique.com/uploads/1/3/0/4/130489363/7793249.pdfIn PDF document text
    • http://mail.ilovemasonjar.com/uploads/1/3/0/6/130604294/94162c9e0e6d237.pdfIn PDF document text
    • http://ashesofren.com/uploads/1/3/0/8/130813667/fenegilipuxam.pdfIn PDF document text
    • http://investimentocasasantodomingo.it/uploads/1/3/0/6/130639714/jitam.pdfIn PDF document text
    • http://realsignaturestyle.com/uploads/1/3/0/2/130272232/1235269.pdfIn PDF document text
    • http://cyanea.us/uploads/1/3/0/5/130540814/zanogalonol_tokegedezobixor.pdfIn PDF document text
    • http://nzlifeontheroad.com/uploads/1/3/0/5/130588164/vuziro.pdfIn PDF document text
    • http://sangchoistudio.com/uploads/1/3/0/5/130588388/lilovid.pdfIn PDF document text
    • http://elfaromexicanfoods.com/uploads/1/3/0/7/130776330/pavalidepi-togimok.pdfIn PDF document text
    • http://csjunioracademy.com/uploads/1/3/0/4/130483300/45413.pdfIn PDF document text
    • http://mail.helpnativefish.org/uploads/1/3/0/7/130775282/venejikoruwanevi.pdfIn PDF document text
    • http://fully-booked.net/uploads/1/3/0/9/130969427/5959396.pdfIn PDF document text
    • http://banksiapark.net.au/uploads/1/3/0/7/130739782/3f7bb41cb8.pdfIn PDF document text
    • http://cerebromatics.com/uploads/1/3/0/7/130776003/tireju.pdfIn PDF document text
    • http://mscbmx.com/uploads/1/3/0/6/130622101/22dc6e9f749.pdfIn PDF document text
    • http://bellamooncosmetics.com/uploads/1/3/0/5/130551475/716620.pdfIn PDF document text
    • http://www.cornerhousecafe1609.com/uploads/1/3/0/5/130545327/f1a229.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_off000077d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D1 7924 bytes
SHA-256: 3b2802cb3d62b5b8e14a349bb75eef81429e2f43bd8446d021103892f780b67d

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