Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc1b86748306c595…

MALICIOUS

PDF

71.5 KB Created: 2021-01-03 03:15:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 2142fb4387237a9c6d80077f7fddf96f SHA-1: e87175bf0f88f66c0ef3601758d4b62990c5cc17 SHA-256: bc1b86748306c595583524c27a011d079fa242195ef9f10a030810ece9454671
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm with numerous external URLs, including one that appears to be a lure related to 'how to escape prison life roblox'. The PDF structure and the presence of external links suggest it is designed to redirect users to potentially harmful sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafftec.ru/123?utm_term=how+to+escape+prison+life+roblox PDF link annotation
    • https://cdn.sqhk.co/zupuguvawaj/jegciij/lipeluz.pdfIn PDF document text
    • https://cdn.sqhk.co/mapelimujeku/bvjfoIh/capsicum_oleoresin_oil.pdfIn PDF document text
    • https://cdn.sqhk.co/jarutejip/bZhiiaW/best_soccer_skills_to_learn.pdfIn PDF document text
    • https://cdn.sqhk.co/wovegase/idOjFjj/28111975086.pdfIn PDF document text
    • https://muzipafubalezan.weebly.com/uploads/1/3/4/7/134702745/2387088.pdfIn PDF document text
    • https://cdn.sqhk.co/mujekesire/Y5cRcux/76470898924.pdfIn PDF document text
    • https://cdn.sqhk.co/kiranagel/Pihra6t/wutazesurifezazigage.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/somamere/zexuzagufag.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/jemitapinejedi.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/allstate_life_insurance_death_claim_form.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/consular_report_of_birth_abroad_costa_rica.pdfIn PDF document text
    • https://s3.amazonaws.com/tugafebip/mathematics_dictionary_for_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3476c1f3-efc2-414e-bc19-a041432e3785/iwata_eclipse_hp-cs_specs.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 2

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_off0000db82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB82 5272 bytes
SHA-256: 171f5ed7a13db88bb76d2f74f9e12135225a9dd052e727f879f5fccc71ae2791
font_01_sfnt_off0000ed8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED8F 10620 bytes
SHA-256: 886b58ea82d59f3bf41a01a11b94865143e72cc7847dba159629ed39c59211d8

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