Malicious PDF — malware analysis report

Static analysis result for SHA-256 a082607337f19eee…

MALICIOUS

PDF

60.2 KB Created: 2020-12-04 20:31:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 3429d677ce24f1694691fd023af4e9f6 SHA-1: daecf91584834281100f963f2709517a172767e8 SHA-256: a082607337f19eeeac5709dfada987c6c230a7040b62832db1b11b2790f52348
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, directing users to various websites. One prominent URL, https://traffset.ru/strik?utm_term=760+pumpmaster+user+manual, is flagged as suspicious. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the structure suggests a link farm designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffset.ru/strik?utm_term=760+pumpmaster+user+manual PDF link annotation
    • https://dedodewoluxo.weebly.com/uploads/1/3/4/4/134402612/f6d80.pdfIn PDF document text
    • https://sitawixabebel.weebly.com/uploads/1/3/4/3/134319036/xizalibuwazamuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410975/normal_5fa5f00e96dc0.pdfIn PDF document text
    • https://mufuxavezefajox.weebly.com/uploads/1/3/4/4/134497947/7495187.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372737/normal_5f906e32af0e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425726/normal_5f9d8bf6f3eb6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374369/normal_5f8bfc4caa681.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372355/normal_5f90746e3903e.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/kofabube/letter_to_teacher_about_my_6th_grade_daughter.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/tinigoromarorusijit.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc144361c8c7413143450ce/t/5fc4af232dd96f591881eccb/1606725412071/xawobusedudifo.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/heroes_of_olympus_graphic_novel.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/best_chatbot_platforms.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/atresia_intestinal_2017.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b07c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB07C 5248 bytes
SHA-256: 297a4d99c3e90fd5d1b2c733fb0d33cb82a892842fa32456c20cde8e7263ed55
font_01_sfnt_off0000c237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC237 10000 bytes
SHA-256: 44724765243ff983dea9fd4e16c63082d9548575dfd064fc47603546b03f7fa3

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