Malicious PDF — malware analysis report

Static analysis result for SHA-256 da9c5dd3648d617d…

MALICIOUS

PDF

74.8 KB Created: 2021-01-15 14:44:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e2e0e31274992cefcb2babb1b9e18260 SHA-1: ee79a6d23b5af797eb8eafa5d907e621acd0f2d3 SHA-256: da9c5dd3648d617da3e9118b04a6c1207721ab60822ce32729e8d8eb10ae612a
196 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which appear to be part of an SEO link farm designed to redirect users to other sites. The presence of a URL like 'https://trafftec.ru/123?utm_term=kgw+live+stream+blazers' suggests a lure for potentially malicious content, such as phishing or malware downloads. ClamAV and ML classifiers also strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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.
  • 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.
  • 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://trafftec.ru/123?utm_term=kgw+live+stream+blazers PDF link annotation
    • https://site-1178342.mozfiles.com/files/1178342/tank_battle_east_front_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/pamefikesamoj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423188/normal_5ff195fae02ed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450884/normal_5ff96fc75f2e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371498/normal_5ff492faa3825.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387928/normal_5fb870d5a1ca9.pdfIn PDF document text
    • https://zilisekisami.weebly.com/uploads/1/3/1/4/131437354/9503802.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470961/normal_5fd72ce84381b.pdfIn PDF document text
    • https://cdn.sqhk.co/vipikunowi/fb6uhaE/camera_studio_stand_used.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/dTGfahf/free_full_length_comedy_movies_on_youtube.pdfIn PDF document text
    • https://rakafofolobe.weebly.com/uploads/1/3/4/6/134649319/5340325.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403404/normal_5f969de6179aa.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/rewugewesuzutelatufipero.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376371/normal_5fdad82301ca8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e81a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE81A 5316 bytes
SHA-256: 46b00e0501b41a91da36cae405db373233c93b2d9cee49fdd1d6d946647d0816
font_01_sfnt_off0000fa42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA42 10700 bytes
SHA-256: 1d11e45d9f395f6ee1a0b02da76d554682264d063b2c4cb1d393d97c29be4218