Malicious PDF — malware analysis report

Static analysis result for SHA-256 f215da6dd8417b52…

MALICIOUS

PDF

73.8 KB Created: 2020-11-13 04:51:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 58a18b04f91437fa775de56cae59e4e1 SHA-1: 43afc313cc8d7e419038dd6d87a43e7488b00bfe SHA-256: f215da6dd8417b52bac3a189975e3d28d1b26b7e1c09bd53989b9b31a525fc39
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, specifically flagging it as a redirector link and a link farm. The document contains numerous embedded URLs, with a primary one pointing to a known malicious redirector. The presence of many links suggests an attempt to distribute traffic to potentially harmful sites, likely for phishing or malware distribution.

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.
  • 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://traffmen.ru/aws?utm_term=best+fly+fishing+guides+in+arkansas In PDF document text
    • https://juleverut.weebly.com/uploads/1/3/4/4/134488806/viwonuwulisupe.pdfIn PDF document text
    • https://pefopurez.weebly.com/uploads/1/3/4/3/134375846/sidebuwoku.pdfIn PDF document text
    • https://mosuzikovadapa.weebly.com/uploads/1/3/4/6/134667275/mevizomukaw_fezotiziparop_nofifetarexonuk.pdfIn PDF document text
    • https://sakukavazu.weebly.com/uploads/1/3/1/3/131379729/58bf77443b1cb.pdfIn PDF document text
    • https://wizamivakujeji.weebly.com/uploads/1/3/4/5/134526499/e9ff05136f89.pdfIn PDF document text
    • https://xuvaguwofivopi.weebly.com/uploads/1/3/4/4/134463587/e1d4e743ca0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jolufozo/batman_a_death_in_the_family_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/62322423337.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/guvujevanobapubasepa.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/imo_app_ringtone_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/94687696303.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab6383a0-94f1-44d8-98bc-2092310a3c00/44359764582.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a47b989-6876-4bab-9ee7-7beab597a61b/kemuzuzexefimodebaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bada9fa-fa6d-4d02-9f3e-15287547f093/curran_theatre_seating_chart.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba21145d-a223-4182-b70e-486ce39c6c3a/rapid_tables_grade_calc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdcc5838-36c2-4c1d-aafb-37055ca41c77/hackers_mod_apk_1.208.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d68a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD68A 5156 bytes
SHA-256: 43d0677619a7503e4472333768606b2aa802fe81fbb2054290e382516036f780
font_01_sfnt_off0000e806.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE806 10504 bytes
SHA-256: 16a4b4ca0ffe2017cc77222cfd5ee477474cdb090936146a64c4afc70ae07aba
font_02_sfnt_off00010bbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BBB 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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