Malicious PDF — malware analysis report

Static analysis result for SHA-256 67eaf8dc9e52b84e…

MALICIOUS

PDF

76.0 KB Created: 2020-12-27 13:49:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 26b9dace1c262463ebf488944b6f87d6 SHA-1: 961b7d7fdb7941976b936ec082d9d4d4d1c4b36d SHA-256: 67eaf8dc9e52b84e09ceafd75701dcd66c9794049cd7a25710a10e2c9a81eded
214 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to redirector infrastructure or link farms, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to "Molina new mexico provider portal", suggesting a lure to trick users into visiting malicious sites. The presence of multiple external PDF links and a redirector link strongly suggests an attempt to lead users to 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://gettraff.ru/123?utm_term=molina+new+mexico+provider+portal In PDF document text
    • https://cdn.sqhk.co/fevivesuxofo/gia2jaC/kart_racers_2_switch_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486983/normal_5fcceffe6659a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392869/normal_5f98b1d7d3346.pdfIn PDF document text
    • https://fixaporaxaju.weebly.com/uploads/1/3/1/4/131413905/bibatunokelifizesemi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470967/normal_5fb333357d3dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367944/normal_5f8e5d3603040.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393889/normal_5fb6cb4dc5144.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406191/normal_5fb3281f40b82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388842/normal_5f8e439e9254f.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/ravuxudibure/65995730289.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33324493-cbf2-49f3-b4a3-a5a20080a4a4/xonezus.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4CB 5268 bytes
SHA-256: b78de89b25f8bec8fa2e9e8f078126cc19d3d8d5f98b6fd06d0fbb9dad5d842a
font_01_sfnt_off0000e6c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C6 11184 bytes
SHA-256: 6be23e5e42023c2b76c3eece348db85597e319c38a6fc9778880e5da2e0fd090
font_02_sfnt_off00010d46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D46 16224 bytes
SHA-256: c3f93d69e3cb30c81ae8f35965ac9f1a1a35941069675b7c0fcc3f03c8d11774

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