Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3913539f9d84bf…

MALICIOUS

PDF

67.5 KB Created: 2020-12-11 08:53:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: abae45079cac4bb8d3c14903b6e1de4f SHA-1: 3dc639880b1c8aacff489341c1098004cb52d5ee SHA-256: 4e3913539f9d84bf8efb5a65f6c60c416a7284eb8fed859533208d7c0f59c8b2
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://traffine.ru/123?utm_term=ak+scope+mount+payday+2' is the primary indicator of this malicious activity. While no scripts were extracted, the PDF structure and the malicious URL strongly suggest a phishing or malware delivery attempt, aligning with the 'Spearphishing Attachment' technique.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffine.ru/123?utm_term=ak+scope+mount+payday+2 In PDF document text
    • https://static.s123-cdn-static.com/uploads/4450355/normal_5fc7dae44973b.pdfIn PDF document text
    • https://paydaymods.com/download/]BLT[/urlIn PDF document text
    • https://superblIn PDF document text
    • https://paydaymods.com/download/]BLT[/url](orIn 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/5fc0c9b1a5bc066edfa528b7/t/5fcbd5009708706f39a68973/1607193856611/xokomajisifokoseze.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc71060fa9ecc39789d5d35/t/5fca8d7852c55e381a1510c3/1607110009664/lunorasuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/royal_london_balanced_lifestyle_strategy_factsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/marathi_barakhadi_chart.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe23371972c46e3c6841a3/1606296377342/filofax_personal_size_pages.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc692bfa13a450bab1bb5ce/t/5fd15f5af2ee360040eabdba/1607556957414/other_names_for_stealth_bomber.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/mafef.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc650746609fd0ee7b66c39/t/5fcb1b3e393ce473562e22fa/1607146309482/great_farm_carlisle.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/widaxazukexifapenokuje.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/nufij.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf52ae08845d0924812d9d/1606374063378/mijomomobukejagesis.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/coachella_fashion_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/69829007818.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_off0000ca6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA6E 5376 bytes
SHA-256: 8e7d3fe4bae7aea9f94e40af7713f3f818352fa1ae212681030aa2157bb8786d
font_01_sfnt_off0000dcbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCBB 10628 bytes
SHA-256: f7cf9b5c9e408ca306716afb1d5ab75711e9e136d05d5d1443da41a314c7916c

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