Malicious PDF — malware analysis report

Static analysis result for SHA-256 080ddcd7f9a5c263…

MALICIOUS

PDF

87.3 KB Created: 2020-12-17 22:43:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: f841b218be3e7017cb329974af5122f9 SHA-1: aadec70bcce4be37dba892feba6dfba18c5fbbdf SHA-256: 080ddcd7f9a5c263b6452a041a017e906721ecf7d6b295dc826936830367e61e
214 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical finding for a link to known malicious redirector infrastructure. The embedded URL points to a suspicious domain, likely serving as a lure or a distribution point for further malicious activity. While no scripts were explicitly extracted, the PDF structure and the presence of malicious links suggest an attempt to trick the user into visiting a harmful site, potentially for phishing or malware delivery.

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
  • 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://cctraff.ru/123?utm_term=dead+by+daylight+meg+new+outfit In PDF document text
    • https://ranefegol.weebly.com/uploads/1/3/4/4/134498511/d7815a6777.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://s3.amazonaws.com/wokesabisevo/10449951177.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc68db56609fd0ee7b8a05a/t/5fd6e6cbe5ac58289635a512/1607919308294/9_app_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/food_menu_template_free_illustrator.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc70e0a791da6493f683ef5/t/5fd0e0fdb8bf0379e61621d7/1607524607617/off_road_accessories_subaru_forester.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/leviathan_raid_guide_for_dummies.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/63703470257.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc01ccfc14dfd36feed28e9/t/5fc2744d3f75b16643237996/1606579277714/nulajunozikovekisokines.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/chicago_manual_of_style_16th_edition_example.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/videoder_apk_2018_for_android.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcee6a2c6de34c7a377ae1/1606217323200/mefomodeduf.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/hidden_animal_pictures_worksheets.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_off00010b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B2C 5260 bytes
SHA-256: 94a6c88a7f20b55450de64df25cd8236bb49bb34b20c64d8df531e6ed3f52e00
font_01_sfnt_off00011d0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D0D 11068 bytes
SHA-256: b4baa4f755ef979fff791159aa9972d03fde2868ddb1da346a2afeb482f7ed81
font_02_sfnt_off000142ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142AC 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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