Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b87abab9c2dd86b…

MALICIOUS

PDF

70.3 KB Created: 2021-01-18 19:21:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 76cca295e0badc265a2f4f7839231b3f SHA-1: eec39d8796f17fe6da8f92e1cb07fc59cfb33e8c SHA-256: 2b87abab9c2dd86b1abfa7841940e82dfb289deef7abc07b368c55a95fcb35c6
194 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains an embedded URL pointing to 'traffking.ru', which is likely used to redirect the user to a phishing or malware distribution site. The document body appears to be obfuscated or corrupted, preventing a clear understanding of its specific lure, but the presence of the external URI strongly suggests a phishing or social engineering attack.

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=ap+statistics+2017+frq+6 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4389353/normal_5fab689f1406e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366947/normal_5fe46ba2f05e4.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/anita_hassanandani_images.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373769/normal_5f926e092dda5.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/nojixukukisalunekuwezur.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482399/normal_60047feec3264.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/49049038668.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/fifipolaxozipoxorunakeb.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/72979928119.pdfIn PDF document text
    • http://jelabenix.22web.org/kannada_latest_love_feeling_songs_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485310/normal_5fad94c484c8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374956/normal_5f92a6ee23705.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425921/normal_5feb2218e5d83.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fobexegedun.epizy.com/roxoxewe.pdfIn PDF document text
    • http://radujexoxetapil.epizy.com/bhaiya_ji_smile_video.pdfIn PDF document text
    • http://musovulazapa.epizy.com/frontline_commando_ww2_mod_apk_2018.pdfIn PDF document text
    • http://lubesugoninop.epizy.com/18605621739.pdfIn PDF document text
    • http://mejovusemuvov.rf.gd/dinojakeburumavulezixumod.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cabb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCABB 5652 bytes
SHA-256: f91d6466a7351c10432b13a1c6dcbccced67195fb3563587ba351b94c3e4ab0c
font_01_sfnt_off0000de18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE18 2744 bytes
SHA-256: 99ca08574c0f61703d69c95e98248c5d024aef0632fe13605c1c1e389329cf25
font_02_sfnt_off0000e9c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C2 10036 bytes
SHA-256: 29b0a60a219ffa1b8405869cccee7873704bfcc102de94f44c0183de127d2caf