Malicious PDF — malware analysis report

Static analysis result for SHA-256 09f3e2066baf9152…

MALICIOUS

PDF

76.1 KB Created: 2021-03-02 15:27:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 2519eaf82320422577edc7217cd89a7f SHA-1: 75f50ceb6a1040befb2307cb8dee6e636ab8f8f5 SHA-256: 09f3e2066baf915217cdb3e1c3d29d2c8e6bbf0ebead0e2ae1c9474713da1926
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to other PDF files, indicative of a link farm or SEO spamming operation. One prominent URL, 'https://leonvi.ru/wix?keyword=yo+visite+ganimedes+pdf+online', suggests a lure to a website disguised as a search result. 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://leonvi.ru/wix?keyword=yo+visite+ganimedes+pdf+online PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4415525/normal_5fc7d7e15cefd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4529149/normal_60295dc1863c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449170/normal_6002249673db7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426541/normal_5ff2d75f38ee7.pdfIn PDF document text
    • https://cdn.sqhk.co/rapalaxob/jjafxje/mivirugumufekipozuzibaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425237/normal_602213d9d5b1a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404966/normal_6006528333926.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455881/normal_5fe2a0c175162.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379217/normal_5ff146666e8e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466661/normal_60298c668908b.pdfIn PDF document text
    • https://cdn.sqhk.co/dilereku/Dihjhji/gepizemi.pdfIn PDF document text
    • https://cdn.sqhk.co/lajojeletab/TiiEXif/movatovakopab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408991/normal_5fcb6bf723989.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459805/normal_6015c15c2da86.pdfIn PDF document text
    • https://dagakaxogofawi.weebly.com/uploads/1/3/4/6/134699425/89e26deca.pdfIn PDF document text
    • https://cdn.sqhk.co/wumigapinido/ijTCu1v/what_animal_are_you_quiz_heywise.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fuzimobikuxuta.epizy.com/dovexoj.pdfIn PDF document text
    • http://vejawogi.rf.gd/zawijilojudunivedabixos.pdfIn PDF document text
    • http://tofurisuxuk.epizy.com/waxufonofaropifov.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED58 5284 bytes
SHA-256: 665498ee4a5417c58f0c3ab62f79cc3da702036b2520df22c59e7eb353ac31a4
font_01_sfnt_off0000ff4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF4E 10524 bytes
SHA-256: 57630cd511b047b757238de6c5fa62cd70205bb3489e26d68e0dbde0602c7d09

Open this report in the interactive analyzer, or submit your own file for analysis.