Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a3eb6d3986a82d4…

MALICIOUS

PDF

66.5 KB Created: 2020-12-14 23:50:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 0cd980cfba838cbeb39bdf8869a73e53 SHA-1: d650e95f7ae700cce19a56a8fa9a7407c3573fa2 SHA-256: 5a3eb6d3986a82d48d7cab0a45d5b352983161afbf7f717c0f0a87196d4ddb22
214 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, appears to contain text related to a recipe, likely serving as a lure. The presence of multiple external PDF links and a critical heuristic firing for malicious redirector infrastructure strongly suggests a phishing or malware distribution attempt.

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
  • 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://cctraff.ru/strik?utm_term=beef+mechado+recipe+without+tomato+sauce In PDF document text
    • https://lexizade.weebly.com/uploads/1/3/4/3/134368494/8348582.pdfIn PDF document text
    • https://kuzasafeg.weebly.com/uploads/1/3/4/5/134586407/xitejiwizire.pdfIn 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/5fc0e552ec917750a3d7e003/t/5fc18f703c6ccf69f399228a/1606520689849/95708229768.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce1190f169c3718385a098/t/5fd72ed6c4373837b9251bd1/1607937752194/attitude_shayari_whatsapp_status_video.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc70ee45c272238a817f7f1/t/5fcbb2aeb495bd202827156e/1607185071237/battle_for_the_planet_of_the_apes_poster.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/video_player_for_ubuntu_14._04.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf26352a3d2561f5fad60f/t/5fd63b42ab777271768990e9/1607875395650/bodagezukovubi.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/baana_kaathadi_songs_isaimini.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/84963380323.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf496f173fb5383b985567/1606371695821/57623721229.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfff2111f6a4198480a438/t/5fc343379b1ed035384669e3/1606632249074/wrist_brace_for_tendonitis_walgreens.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/umc_liturgical_calendar_2018.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_off0000c754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC754 5504 bytes
SHA-256: e5cb8a3f5be6e88b0314f5de54fe10a849a7aa4457099bc7243f34dbce55439f
font_01_sfnt_off0000d9f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F9 10384 bytes
SHA-256: 4e822f592817ab6ecd2ae7f650e58e8e2730fd764419d443abfe4992bf3e1cda

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