Malicious PDF — malware analysis report

Static analysis result for SHA-256 9513da275584047e…

MALICIOUS

PDF

43.8 KB Created: 2020-10-07 22:32:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8251e6c4d78fbdc51b299347635edb39 SHA-1: 00b6a630f685e23af8b9ee18d24878abc8770206 SHA-256: 9513da275584047e12c16efbee09a991142896fbfb89dddbc0a011e829411610
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One of the primary links directs to a known malicious redirector. The document body itself is heavily obfuscated but contains references to the malicious URLs, suggesting an attempt to drive traffic to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gettraff.ru/strik?keyword=mirror+lost+shards+patch In PDF document text
    • http://zivifape.walkinglightlytravel.com/uploads/1/3/1/3/131383314/mewuvebif-bobovefa-zijuberadob-wufipoxomugemu.pdfIn PDF document text
    • http://files.nityakumar.com/uploads/1/3/2/6/132695813/3991437.pdfIn PDF document text
    • http://files.phillyyouthdancefest.com/uploads/1/3/1/3/131381204/e7737a6d26.pdfIn PDF document text
    • https://site-1039730.mozfiles.com/files/1039730/jiwitofebubedepomedaf.pdfIn PDF document text
    • https://site-1043165.mozfiles.com/files/1043165/sifulejudipiketur.pdfIn PDF document text
    • https://site-1039187.mozfiles.com/files/1039187/gasuratuxemerajukev.pdfIn PDF document text
    • https://site-1042670.mozfiles.com/files/1042670/pipokukumajorupakofo.pdfIn PDF document text
    • https://site-1037245.mozfiles.com/files/1037245/ridobijojunogexupivi.pdfIn PDF document text
    • https://site-1037163.mozfiles.com/files/1037163/pexijibuxutiwubodozaj.pdfIn PDF document text
    • http://files.abt-laenen.com/uploads/1/3/2/7/132710638/d7829bc94aea.pdfIn PDF document text
    • http://files.soheilaazadi.com/uploads/1/3/1/4/131406473/b9abd9b80f39.pdfIn PDF document text
    • http://kefim.coolcatstudio.net/uploads/1/3/1/3/131379409/a509c989ad.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
    • 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_off0000619c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619C 4732 bytes
SHA-256: 637bd1196ac8626bc01e9f2026d84c593fcd8567ec1a6beb0064707c2ba42288
font_01_sfnt_off000071ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BA 10128 bytes
SHA-256: 8ee66eead1d67d070a06a1b4daf3de34c84c93f24d0f546126b6d167558f37de
font_02_sfnt_off00009467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9467 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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