Malicious PDF — malware analysis report

Static analysis result for SHA-256 a34f0468a5f9f8e9…

MALICIOUS

PDF

39.1 KB Created: 2020-03-22 10:04:56 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 8bfda59edcef87a9f42af8f32bc0e789 SHA-1: 7fe7ec2cb6f689e130d0d0aaa030c19673c94209 SHA-256: a34f0468a5f9f8e9ee8d539a8c2497639e8809c4f3f0ce840b7e80e7e69fb8bb
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body also contains a URL, likely intended to redirect the user to malicious content or for SEO manipulation. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://brusuelastravels.net/uploads/1/3/0/5/130543279/130543279.html#the+real+jazz+fake+book+hal+leonard+pdf PDF link annotation
    • http://www.shiatsumarikatuhkala.com/uploads/1/3/0/4/130488974/repilodafobelo_rapimitegumovo.pdfIn PDF document text
    • http://famdevelopment.org/uploads/1/3/0/3/130323277/842c0cdb1.pdfIn PDF document text
    • http://www.childzplayllc.com/uploads/1/3/0/6/130604798/netegiposodakaj-vusugomolafi.pdfIn PDF document text
    • http://alisaskincare.shop/uploads/1/3/0/2/130271042/3258444.pdfIn PDF document text
    • http://www.empirekoi.com/uploads/1/3/1/0/131070236/b74f7.pdfIn PDF document text
    • http://www.thefrenchpress.net/uploads/1/3/0/9/130969800/lasilexugapel.pdfIn PDF document text
    • http://olecabaret.com/uploads/1/3/0/6/130640141/5fb301590.pdfIn PDF document text
    • http://www.karmacleaning206.com/uploads/1/3/0/5/130588924/xebedamuzuvum-vexugisi-bemuwubevo-xivokizewoj.pdfIn PDF document text
    • http://securitycamerasofatlanta.com/uploads/1/3/0/6/130639230/namotasox-gokorevajik-tebodu.pdfIn PDF document text
    • http://trianglestartup.com/uploads/1/3/0/7/130776122/7846128.pdfIn PDF document text
    • http://liveasme.com/uploads/1/3/0/2/130289225/xezazimazu.pdfIn PDF document text
    • http://postfineartstudio.com/uploads/1/3/0/7/130739289/renubupu_vajuwenuwodojo.pdfIn PDF document text
    • http://naturecalling.us/uploads/1/3/0/3/130313339/112417b53.pdfIn PDF document text
    • http://mcclureboatclubinc.com/uploads/1/3/0/4/130483515/d323192b124f85.pdfIn PDF document text
    • http://portpainting.com/uploads/1/3/0/6/130639854/ziladubafisino-fukexuseket-bivizadok-netuf.pdfIn PDF document text
    • http://mbizdeals.com/uploads/1/3/0/7/130738964/37d1d.pdfIn PDF document text
    • http://k-statebasketballplayers.net/uploads/1/3/0/4/130436049/5116969.pdfIn PDF document text
    • http://mysportsworld1.com/uploads/1/3/0/8/130874529/nukumepoletexu_tivuvugofewe_betutup.pdfIn PDF document text
    • http://chinese.genderinsanity.com/uploads/1/3/0/4/130483373/4174189.pdfIn PDF document text
    • http://www.ridgwaytherapy.com/uploads/1/3/0/9/130969527/4834927.pdfIn PDF document text
    • http://geminieyecarecenters.com/uploads/1/3/0/4/130491418/zexonamidiwofet.pdfIn PDF document text
    • http://argyllwinter.com/uploads/1/3/0/5/130550675/fufexekukuto-kerovejenir.pdfIn PDF document text
    • http://melscripting.net/uploads/1/3/0/4/130488163/8470425.pdfIn PDF document text
    • http://gummycats.com/uploads/1/3/0/7/130739567/4aa1ccb2b15.pdfIn PDF document text
    • http://cherryhillspeech.com/uploads/1/3/0/4/130488067/sizesinibemoxa_lumuvitefize_jixozuz.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 8

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_off00006dbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DBE 7900 bytes
SHA-256: 0d10793af31503c201ee778e551d2e9af333f6a8b3b6b14c7894f747dc82a292

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