Malicious PDF — malware analysis report

Static analysis result for SHA-256 b29d07d3271be145…

MALICIOUS

PDF

71.7 KB Created: 2021-01-20 06:59:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 89d087d0ad184a05b155505f45fae56d SHA-1: 219e51a6881ebfcd8d5f388812d4348e3e6c5de7 SHA-256: b29d07d3271be145a741826ae3b8057fc00b827de90a5b33d4215af049b0bbd4
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://cctraff.ru/123?utm_term=all+souls+michael+patrick+macdonald+pdf'. This indicates the document's primary purpose is to lure the user to this external site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • 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=all+souls+michael+patrick+macdonald+pdf In PDF document text
    • https://xotinibawilufo.weebly.com/uploads/1/3/1/4/131437660/zikolofo.pdfIn PDF document text
    • https://jefaganogebe.weebly.com/uploads/1/3/1/4/131437435/7582f8d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469640/normal_6003c0cc20283.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393204/normal_5fc98705ae807.pdfIn PDF document text
    • http://tufezoba.22web.org/smadav_antivirus_setup_free_for_pc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456699/normal_5fbdef54afa4e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470960/normal_5fabffc5d942c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381302/normal_5f9714797bbc9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393883/normal_5fde4d0dbbf88.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/X8Sgiif/rutagulesov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417818/normal_5fcc2634dcc43.pdfIn PDF document text
    • https://fipamowusaki.weebly.com/uploads/1/3/4/8/134879766/volededag_rapanunixej_vugeb.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/mamukawaxatali/5803775036.pdfIn PDF document text
    • https://s3.amazonaws.com/fexuror/90951518620.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/42493007278.pdfIn PDF document text
    • http://faduzidivatakid.epizy.com/bachelor_degree_of_information_technology.pdfIn PDF document text
    • http://zobovobewuw.epizy.com/clash_of_clans_achievements._csv_hack_file.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/jiruwukegurerenafud.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_off0000dbe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE0 5448 bytes
SHA-256: aa80b7949652690df93f6153a8c486c4b27653b25163f00d562060b1e31fa78e
font_01_sfnt_off0000ee3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE3C 10348 bytes
SHA-256: 77e4d7b02c10e18bd983cd6e9f5653407f4029f09f9b5fdb7ef3c4c026b9a90d