Malicious PDF — malware analysis report

Static analysis result for SHA-256 2619ec0d419ba829…

MALICIOUS

PDF

75.4 KB Created: 2021-03-02 14:03:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: af83bcaa518bfa1396e12e6fe38f600c SHA-1: c5b0505f76a39c47a8a7b8a65e5e8ad357fdf01b SHA-256: 2619ec0d419ba8291b93eddef1d2db3cb73992c761474d87efef7d4efc2b0ac9
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, a common tactic for link farms and phishing sites. The embedded URL and the document body suggest a lure related to 'how to make circle labels on canva', which redirects to a suspicious domain. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://kuzutuzo.ru/award?keyword=how+to+make+circle+labels+on+canva PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391915/normal_601a3317e8530.pdfIn PDF document text
    • http://lngcliente.com/fajokegozekefikezoldev4h.pdfIn PDF document text
    • http://philonio.online/96859660697698hc.pdfIn PDF document text
    • http://ogranicbio.space/fufazoraxedenujam7mmem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448110/normal_5fe4c4695ca91.pdfIn PDF document text
    • https://romugazasemagop.weebly.com/uploads/1/3/4/8/134897733/7537004.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486548/normal_6024acf284d82.pdfIn PDF document text
    • http://jagiliwut.22web.org/computer_hardware_and_networking_in_english.pdfIn PDF document text
    • http://qqkaxes.xyz/roziwud8zc7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480591/normal_5fd7a14ab3462.pdfIn PDF document text
    • http://homebig.space/panevuwewagiwozetuveme4uybt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470979/normal_5ff2fbab6eba5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/jafowajapijolaset.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/73974375340.pdfIn PDF document text
    • https://s3.amazonaws.com/kotidox/hamlet_shakespeare_theatre.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/mevajegalowazoxof.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E6 5264 bytes
SHA-256: 968c2ff7bbbb35cf0f1a22f4e70222a274ec983c7f0feea77039796c878f0b6d
font_01_sfnt_off0000f3bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BD 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000fc4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4A 10504 bytes
SHA-256: 447b2b83a30c4ea2a1f045d364840567f23b73d989723233abc4add522a39648

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