Malicious PDF — malware analysis report

Static analysis result for SHA-256 3edbe2e1785c679a…

MALICIOUS

PDF

62.5 KB Created: 2020-12-20 07:51:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: d155a8003d115bf2f956b49b22cc82dd SHA-1: 96a64f6e2230797a977e399097f68a227de02019 SHA-256: 3edbe2e1785c679acb408d013a4b2f5fc6a7b1200ea98d3406f0ce6d7a35290f
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, with one heuristic specifically identifying a 'PDF_SEO_LINK_FARM'. The primary suspicious URL, 'https://trafficel.ru/strik?utm_term=denon+avr+1513+manual', is likely used for phishing or to redirect to malicious content. While no scripts were explicitly extracted, the PDF structure and the presence of external links suggest an attempt to lead the user to a malicious site, aligning with spearphishing tactics.

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://trafficel.ru/strik?utm_term=denon+avr+1513+manual PDF link annotation
    • https://zetaxufonepijak.weebly.com/uploads/1/3/4/3/134353616/dovuxenarage.pdfIn PDF document text
    • https://fofevupug.weebly.com/uploads/1/3/4/4/134490210/8443725.pdfIn PDF document text
    • https://foruvojupizife.weebly.com/uploads/1/3/4/3/134352799/5087999.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6c2e18e72e5fdbd04ce1/1606380596547/69324971180.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/free_schindler_s_list_subtitle_indonesia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75b94329-d8a5-4b68-82ce-a034816e5f61/gamave.pdfIn PDF document text
    • https://s3.amazonaws.com/getizar/zedomotetebegojup.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2860b2bbd74065810de9f/t/5fcd8b1d83d2ac65cc2be744/1607306014281/porimetamotegovipek.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc724bad64a3343a5f7119e/t/5fcb7593da45e86ccaa3e006/1607169429139/syberia_3_pc_game_review.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/the_holy_spirit_guide_you_into_all_truth.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/beginning_sounds_letter_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/leweliragavaziwuwesufada.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4d1089955c744b55487a1/t/5fc97400ab78533d483c5494/1607037953445/lamosowaxuzinafom.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/18082092145.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_off0000ba95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA95 5052 bytes
SHA-256: 7ce34274015d8412ae6d09d1299f01445e81fdbce265cd78912bae3e0031ef7c
font_01_sfnt_off0000cbc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC4 10020 bytes
SHA-256: 625401241a58c70c91038a055ef6cd30ef3d6def35fbb16f3b65ee0fadc6834b

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