Malicious PDF — malware analysis report

Static analysis result for SHA-256 f332f7c17878df50…

MALICIOUS

PDF

75.0 KB Created: 2021-05-28 05:28:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 746e781143a0f1f9e3c956f9476c1d5e SHA-1: e947162386b2f8e2f603173080f93ec50150eaa1 SHA-256: f332f7c17878df50914f42f4fb1e2c44eef06004103f452a891dea9d355e6ffc
214 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics, including a critical finding for linking to known malicious redirector infrastructure. The file contains a large number of embedded URLs, suggesting a link farm designed to direct users to potentially harmful sites. While no scripts were explicitly extracted, the nature of the PDF and the embedded links strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • 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.
  • 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://yafferge.ru/strik?utm_term=que+es+una+mezcla+en+quimica In PDF document text
    • https://static.s123-cdn-static.com/uploads/4444102/normal_60064c1bc2b3a.pdfIn PDF document text
    • https://kivexobine.weebly.com/uploads/1/3/4/8/134859900/pilaronukurenolodogi.pdfIn PDF document text
    • https://xibuderopugef.weebly.com/uploads/1/3/4/0/134042602/xaxabejobilawola.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374537/normal_6057f68694eef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/47edc829-7be4-45ec-abee-2b1260d9227d/what_is_oil_mixture_for_2_stroke_outboard.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4fad21f-6426-42d2-98b7-bb52445e4a7c/nj_drivers_license_not_for_real_id_purposes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d60e068b-b129-4a2f-9d85-c48fb96d6179/bevesexivafemarirakonigu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60d75baf-d02c-4e5d-90ed-e9063c7d0ee0/vemefilewetaxos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4978371d-4a80-4360-a7f8-b9160185c742/dolovubisagigefitojiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6b02aab-6ba6-47fe-bcb5-1c9d18c5bf3a/bubipi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a1810b0-e2a5-4df1-8a69-8521acd65b15/blackdecker_20v_max_drill__drill_bit_set_100_piece_bdc120va100.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9410dbc-c017-4b49-a9f6-62e16531ae41/73907530416.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b13ac9e-5d50-474d-aabe-8bbd81e61608/the_jordan_rules_pistons.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a8c1994-018d-4aef-b8ee-dcda52e9a76a/old_school_hip_hop_songs_clean.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/297de1d0-3b31-4b4b-ab18-3e1277fae910/zig_ziglar_self_talk_card.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/665070d9-f058-4582-9239-5a48ad140f69/how_to_add_mp3_to_iphone_music_library.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_off0000e4f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F6 5084 bytes
SHA-256: bbfee649b1ee434a9e3498d34b852082a5d326fb3162b6727620fe2a278e857c
font_01_sfnt_off0000f63f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF63F 12220 bytes
SHA-256: 0f2528a06a42d51856092f344b9f7c4f69bd8f1825c87eef6546c5a549ad3ba2

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