Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ff1c0919f315c5e…

MALICIOUS

PDF

68.2 KB Created: 2021-02-25 00:31:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7da365e37539ee467da5d76ee0a99e46 SHA-1: 08aa1d3dac7f27aa221f918925000eac7de9c647 SHA-256: 9ff1c0919f315c5e0446042259ebfcfb81936175e932b3ec86c2067f10082450
214 Risk Score

Malware Insights

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

This PDF file was flagged by multiple critical heuristics as malicious, including a redirector link and a link farm. The embedded URLs suggest a phishing or malware distribution attempt, likely leveraging a spearphishing attachment vector. While no scripts were explicitly extracted, the nature of the heuristics and embedded URLs strongly indicates malicious intent to redirect the user to external malicious content.

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
  • 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://yafferge.ru/123?utm_term=the+lost+books+of+the+bible+chartwell+books In PDF document text
    • https://bojowavezuzabi.weebly.com/uploads/1/3/1/3/131382797/6938162.pdfIn PDF document text
    • https://wimelavejitovuv.weebly.com/uploads/1/3/4/5/134597731/3eda94c2bf0.pdfIn PDF document text
    • https://puxibaso.weebly.com/uploads/1/3/0/9/130968956/tokabamume.pdfIn PDF document text
    • https://jiromozuno.weebly.com/uploads/1/3/5/3/135387519/waduw_nonatunuzasi_fapira_zasajilopa.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvopone/khdjcKt/word_search_creator_free_printable.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pekudus.rf.gd/67671882816.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/94862448533.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/17159642949.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/ibrd_ida_guidelines_for_selection_of_consultants.pdfIn PDF document text
    • http://fowixopepe.epizy.com/marketing_management_by_philip_kotler_15th_edition_free_download.pdfIn PDF document text
    • http://kaxixuzebupajal.epizy.com/biderivavatapemu.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/picture_composition_worksheets_for_class_4.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_off0000cbee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBEE 5216 bytes
SHA-256: 0b92bfe30f24c2e87674c11881a6741f8316120c9ac3c33ccc212259cfdb35cd
font_01_sfnt_off0000ddbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDBD 11268 bytes
SHA-256: acbfdc064773485bda3c950789214d56b4fd458f3bbb2545f30250f6aa9945e6

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