Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bc1273e5262393d…

MALICIOUS

PDF

78.3 KB Created: 2020-12-21 22:44:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 9152a0efb0bf0031783d62958a26dc2c SHA-1: 1c7c16e5177dfd5d5373a6cff4623b29cbda4a7b SHA-256: 9bc1273e5262393d378e6e0540cf3d31c5c7405b73bd0b2475adb4507d47e93b
214 Risk Score

Malware Insights

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

The sample was identified as malicious by ClamAV and an ML classifier, with critical heuristics indicating it's a PDF redirector and part of a link farm. The embedded URLs, particularly 'traffmen.ru', are flagged as malicious, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and heuristics strongly suggest it's designed to redirect users to malicious content.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffmen.ru/strik?utm_term=dragon+ball+z+dokkan+battle+shenron+wishes In PDF document text
    • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/rivoxawemifa_fafipaxatagadej_zutetirogu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368781/normal_5f9d0a40d8431.pdfIn PDF document text
    • https://vixeroniwemeful.weebly.com/uploads/1/3/0/7/130740086/tulezekuraves.pdfIn PDF document text
    • https://tupodawemizaz.weebly.com/uploads/1/3/4/5/134594588/vefowogutado.pdfIn PDF document text
    • https://tanaxigurav.weebly.com/uploads/1/3/4/2/134266775/denesanijibep.pdfIn PDF document text
    • https://faxuledobiwud.weebly.com/uploads/1/3/4/3/134311760/totevulepuwokavobig.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fc584cb17e7202640095cc5/t/5fd1c6ad8185f4776a0db67f/1607583410784/dominos_delivery_near_me_open_now.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc00c29085bf90c0ef85582/t/5fc13b2ee18c5c478e28fc6a/1606499119926/powerschool_university_2020.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdd44de8580e136cdf53fe3/t/5fdda102ef8e407a9e7f7116/1608360195417/german_pronunciation_guide_d.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/wuxujubevi.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/data_criticality_analysis_template.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e6bd3398ff75152e0f70/t/5fce1006c00f007cea0f0d50/1607340039469/72770724052.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/investigation_report_template_hr.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/bbs_1st_year_result_2075_with_marksheet.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_off0000e903.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE903 5220 bytes
SHA-256: 202e7d1c95bb39d088a0805f5c2b9f04550733418e12815480c470041ecc51eb
font_01_sfnt_off0000face.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFACE 10572 bytes
SHA-256: 8513f42a13b35a3a94d4fff9b7b618812ce05dac5ddd37840094cfb4e9e6626c
font_02_sfnt_off00011e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E5E 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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