Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0514535cb5bbe39…

MALICIOUS

PDF

63.0 KB Created: 2020-11-21 09:25:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d2c96687ef23827b0affc9fd3b9a347f SHA-1: 49171e99fc4ef7c66fd12fc51102574e9e3b1cee SHA-256: d0514535cb5bbe39c67cca1b351eacf425fb9534b439667ea12b94d8a86fca54
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple external URIs, with one pointing to 'traffking.ru', suggesting a redirection or phishing attempt. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a non-clustered link farm on disposable hosting, further supporting a malicious intent. The ML classifier and ClamAV detection strongly indicate this PDF is malicious, likely used as a lure to a malicious site.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?utm_term=barbie+fashion+fairytale+opening+song PDF link annotation
    • https://kosemarenile.weebly.com/uploads/1/3/4/3/134315061/791b6e9144.pdfIn PDF document text
    • https://kikitepolo.weebly.com/uploads/1/3/4/5/134514310/rujibodix_gobad.pdfIn PDF document text
    • https://gozofuma.weebly.com/uploads/1/3/0/8/130874065/paluxat.pdfIn PDF document text
    • https://mudekireziwafa.weebly.com/uploads/1/3/4/7/134730614/pinozazikas.pdfIn PDF document text
    • https://sukevimekixav.weebly.com/uploads/1/3/4/5/134599702/wojetavimo.pdfIn PDF document text
    • https://lirefabagobaxi.weebly.com/uploads/1/3/4/0/134012393/e91adefc6.pdfIn PDF document text
    • https://dofazodasi.weebly.com/uploads/1/3/0/8/130873943/xexumetofir.pdfIn PDF document text
    • https://rezivunafotete.weebly.com/uploads/1/3/4/3/134354631/barelokajimebe-pozafusufar.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/dazinibonofobi/cut_the_rope_game_2_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb0ccdd1-354c-431d-a6af-fb7d2bef3431/45771798493.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/addiction_to_social_media.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/quilt_patterns_for_christmas_table_runners.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_off0000b992.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB992 5456 bytes
SHA-256: f41c18d28cd677020be6ed49726639740bec54ec3982d560275800f0566908ee
font_01_sfnt_off0000cc27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC27 10380 bytes
SHA-256: 760ead6057c1beb51e9bcfb04b04e09c0823a64f6afa2030c24a063857bdd9a2

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