Malicious PDF — malware analysis report

Static analysis result for SHA-256 605764c4c8d344d3…

MALICIOUS

PDF

65.5 KB Created: 2020-12-26 22:45:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d108adbbf0b78833057bc269f07e9047 SHA-1: e3a127587ea33cc0aa2b2f4bd039d60c61341130 SHA-256: 605764c4c8d344d329c2c314b975cd2aee62b91f89bf3d196e4dd1c6655e111e
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by multiple heuristics, including PDF_SEO_LINK_FARM and ML_NYX_PDF_MALICIOUS, indicating a high likelihood of malicious intent. The presence of numerous external links, particularly the one pointing to 'traffking.ru', suggests an attempt to redirect users to potentially harmful websites. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest a phishing or malicious redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffking.ru/strik?utm_term=extreme+demon+list+roulette+geometry+dash+website PDF link annotation
    • https://cdn.sqhk.co/marixefe/FIdhagz/rimadipiwalowukumetu.pdfIn PDF document text
    • https://xizadububexo.weebly.com/uploads/1/3/4/5/134595199/gugilazopizokapi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454672/normal_5fce28066bce6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417033/normal_5fc2225193f5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366311/normal_5f88aad34ad2e.pdfIn PDF document text
    • https://wedezetepeb.weebly.com/uploads/1/3/4/5/134528952/caec5b22562b9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1a61e2a-9785-473e-a4d6-a15dba2e033a/a_history_of_american_higher_educati.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ba9d05a-15a0-4e95-80d1-46e7989de318/miwalilejo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d62b6cdb-40b6-4b36-b5fc-6968a85da8dc/tadufojos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a91f2d8d-dee0-45e6-b580-6cb89ee11d92/66738808286.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/calculator_plus_pro_apk_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/867866b5-8981-46df-877f-5d7856633be3/suzojuxupobirono.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/ikea_salt_lake_city_hours.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/happy_cooks_cafeteria_austin_tx.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_off0000c088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC088 5600 bytes
SHA-256: a37dca0c68a426f3cb4ec7a20d242166fbe48923847071aa5e83f21c8084d514
font_01_sfnt_off0000d381.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD381 10980 bytes
SHA-256: 61bdd709488b833f71b9a164f62e55c83e97de7bc29209954dd503593ddd5918

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