Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f529fb455242789…

MALICIOUS

PDF

79.4 KB Created: 2021-02-26 14:47:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: ce234f2c149f8ad806fa8c36bb78d2d1 SHA-1: b73fe48b65995486e7e599b19a80fcc712011928 SHA-256: 5f529fb455242789f2b7a566b866580963e14269cd9cb07e351684c019e7f896
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a lure related to a 'Samsung 75 inch tv nu7100 review' and embeds a URL that redirects to a known malicious domain. Heuristics indicate this is a phishing attempt using an SEO redirector. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/123?utm_term=samsung+75+inch+tv+nu7100+review PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4470220/normal_5fd68aa64ee4d.pdfIn PDF document text
    • https://cdn.sqhk.co/rigidaluta/eZjcgOR/76987017034.pdfIn PDF document text
    • https://cdn.sqhk.co/zozijawutuxu/NiPhfgc/pocket_bike_racing_south_africa.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/Vh2oijE/control_tower_word_crossword_clue.pdfIn PDF document text
    • https://cdn.sqhk.co/duzemata/iBFjjja/greatest_hits_rock_70_80_90.pdfIn PDF document text
    • https://cdn.sqhk.co/kimazibo/gjfhep5/latest_viral_video_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/bibobovezave/jhZjijj/26411356563.pdfIn PDF document text
    • https://cdn.sqhk.co/digatamale/4LmicUs/infinity_loop_game_level_21.pdfIn PDF document text
    • https://cdn.sqhk.co/nemazuwigumo/vzijieW/waze_traffic_app_free.pdfIn PDF document text
    • https://cdn.sqhk.co/sunidoxil/XI7hije/metivimuvupej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459785/normal_6029730e9f362.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384307/normal_6005ba5d83b57.pdfIn PDF document text
    • https://cdn.sqhk.co/mixaluwekitu/aIjegjj/aliexpress_hair_bundles_with_closure_deep_wave.pdfIn PDF document text
    • http://newapegujopabi.22web.org/army_new_dress_uniform_date.pdfIn PDF document text
    • https://cdn.sqhk.co/bupedamarib/hhijIAf/52375420111.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/vavale/hallelujah_for_the_cross_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/industrial_application_of_catalyst.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/kokimisumos.pdfIn PDF document text
    • http://xugidujesu.epizy.com/superantispyware_portable_free.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA5F 5832 bytes
SHA-256: 05f78b0f42c3b97efa913d5c04ad6068f7dba2be61f56fd86698d5646651b153
font_01_sfnt_off00010e38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E38 10076 bytes
SHA-256: 7406a77b1f5575f343d10decf8fd90458ac1c01611153d399d9e010b1267529e

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