Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba1bfc65ae22d66…

MALICIOUS

PDF

65.7 KB Created: 2020-12-18 08:53:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 18ae5bb42b1e0a2975f9694aab63d7ff SHA-1: 55a348bfd6df7215ba0448e05adff96303f61457 SHA-256: 2ba1bfc65ae22d662c3e42f3b94ab76e53fc6a4b3ea728d6b4410199ea013172
222 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links, with at least one identified as a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link `https://cctraff.ru/123?utm_term=hilton+price+match+reddit` leads to malicious infrastructure. The presence of a large number of external links, as flagged by 'PDF_SEO_LINK_FARM', suggests an attempt to distribute or phish via these URLs. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=hilton+price+match+reddit
    • https://jadimakadafi.weebly.com/uploads/1/3/4/3/134378671/2444202.pdf
    • https://cdn-cms.f-static.net/uploads/4451563/normal_5fc029f1cca84.pdf
    • https://cdn-cms.f-static.net/uploads/4414677/normal_5fa09fe5dda5f.pdf
    • https://cdn-cms.f-static.net/uploads/4365652/normal_5f998f563139e.pdf
    • https://cdn-cms.f-static.net/uploads/4473039/normal_5fa5987337b8d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf48ec3570fb44d1f8bdcc/1606371566434/fizonanutipo.pdf
    • https://uploads.strikinglycdn.com/files/2fdafb3d-00d7-4c5a-a1cf-f602318ff7bc/eldritch_scion_pathfinder.pdf
    • https://static1.squarespace.com/static/5fc5268be9fc3622d53d9466/t/5fc6b7f6bfb90028be382af1/1606858743841/sheltered_synonym_word.pdf
    • https://uploads.strikinglycdn.com/files/1e7d00be-8a00-4ddd-b38c-6eb2d6fdbd9d/97706653440.pdf
    • https://uploads.strikinglycdn.com/files/2dfa4117-5160-405e-a61d-157340210d65/76941188264.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c462.bin
8c9eb214ea0427ce18b5f2887f52a27ec44f3988ab9c01b1d6237402599167dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC462 5096 bytes
font_01_sfnt_off0000d582.bin
a98f617c1394c886a933a0283593fca24ad24f149389de191c5b1467ca03e7dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD582 10796 bytes

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