Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb69369cee5db255…

MALICIOUS

PDF

70.0 KB Created: 2021-02-25 17:20:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 036ff7b8821d0de558800bc6af0d72e8 SHA-1: ab1c2b9a2f530355ba4284372bf986a5b88f732b SHA-256: bb69369cee5db255b18ec12d71ea6ecfe63da3d28d169c93eb475046267b133a
196 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a phishing lure, specifically using a fake offer for a printer cable adapter to entice users. It employs a link farm and redirectors, such as https://druttle.ru/strik?utm_term=hp+laserjet+1100+cable+adapter, to lead victims to other PDF files, some of which are hosted on suspicious domains like cdn.sqhk.co. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/strik?utm_term=hp+laserjet+1100+cable+adapter PDF link annotation
    • https://cdn.sqhk.co/mofijovelu/dYM1EwA/xatudolevudi.pdfIn PDF document text
    • https://cdn.sqhk.co/jekurona/Dyhf8gf/horse_cart_racing_menorca.pdfIn PDF document text
    • http://myfoxing.online/fat_loss_diet_plan_for_female_guru_mannixd9m.pdfIn PDF document text
    • https://fifubinagate.weebly.com/uploads/1/3/4/8/134854053/kiren.pdfIn PDF document text
    • https://cdn.sqhk.co/ropimipaf/hgi2c4x/the_trip_to_italy_restaurants.pdfIn PDF document text
    • https://cdn.sqhk.co/gozigawefo/ihogjMA/71038775758.pdfIn PDF document text
    • https://cdn.sqhk.co/xagaxubibiz/M3djajj/cheap_supercars_for_sale_ireland.pdfIn PDF document text
    • https://cdn.sqhk.co/fakodozug/ihka4id/sniper_elite_5_pc_release_date.pdfIn PDF document text
    • https://cdn.sqhk.co/pazakazagoz/RYjhhfY/nintendo_switch_online_membership_code_family.pdfIn PDF document text
    • https://cdn.sqhk.co/movumatoz/8hbV2vp/best_qr_scanner_iphone_free.pdfIn PDF document text
    • https://cdn.sqhk.co/fapetemiji/hiDvijk/how_to_safely_clean_road_rash.pdfIn PDF document text
    • https://cdn.sqhk.co/ratevusur/ibZ1gcO/34767880177.pdfIn PDF document text
    • http://prechambre.xyz/559639175664e0f9.pdfIn PDF document text
    • https://nopewiviguzine.weebly.com/uploads/1/3/1/1/131164125/9921849.pdfIn PDF document text
    • https://cdn.sqhk.co/reriwoduriju/iexia73/atomus_hd_apk_2._91.pdfIn PDF document text
    • https://cdn.sqhk.co/rodofusavivi/fNo2if7/11358395625.pdfIn PDF document text
    • https://cdn.sqhk.co/nitumatemi/goPhijb/30184177638.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nikofutame.rf.gd/wojuguwasalifuxovuluna.pdfIn PDF document text
    • http://zimemotom.rf.gd/godumovumodawowuxuzowuluk.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_off0000d2fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2FE 5436 bytes
SHA-256: b28b146f72376a53c242bf49c02e6aa8e67261643605d2cfdd0c453fd16914cf
font_01_sfnt_off0000e581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE581 10496 bytes
SHA-256: d4d3d2ca53d94f37245d5dbffcf736ae908d0f4545217cf0723d87239696f7f9

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