Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f144ffcf69d124e…

MALICIOUS

PDF

45.1 KB Created: 2020-10-07 04:52:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f37617d098f1fdb446f69d7711e40d8 SHA-1: 231074e2da68f76756b719c16f5808f964d978ec SHA-256: 0f144ffcf69d124e99dbd063ade228845b3d3fcfe0d1f53a4bbd845840a2d42c
164 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document contains numerous embedded links, several of which point to known malicious redirectors or disposable hosting. The document body, though obfuscated, contains references to 'Poe trade macro commands' and URLs that are likely used to distribute further malicious content or phish for credentials. The ML classifier strongly indicated maliciousness, supporting the presence of these suspicious links.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://cctraff.ru/strik?keyword=poe+trade+macro+commands In PDF document text
    • https://site-1037111.mozfiles.com/files/1037111/goxugadajizolosusigige.pdfIn PDF document text
    • https://site-1037010.mozfiles.com/files/1037010/97052657786.pdfIn PDF document text
    • https://site-1039931.mozfiles.com/files/1039931/dutim.pdfIn PDF document text
    • https://site-1037265.mozfiles.com/files/1037265/12426327641.pdfIn PDF document text
    • https://site-1040509.mozfiles.com/files/1040509/89438108716.pdfIn PDF document text
    • http://gomel.pridefightingchampionshipstribute.com/uploads/1/3/1/3/131379211/52414600317a.pdfIn PDF document text
    • http://migimixu.building313.com/uploads/1/3/1/3/131383651/ligixukib-nofewinaje.pdfIn PDF document text
    • http://files.dorabramden.com/uploads/1/3/1/3/131382141/3729828.pdfIn PDF document text
    • http://files.jeremylepisto.com/uploads/1/3/2/6/132696104/zunanebavi.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/589c935b-8d28-4b8f-93df-15365a84270e/biwifeta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf16bf9f-9809-4928-8b7a-807ae23ea671/14123606336.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af41eb55-0009-400e-a308-5ecb663d216e/35159997211.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_off000073e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E1 5056 bytes
SHA-256: 772401a471e7f337457a0808f0d380bc93d0bfb6ccc5013679bff834e6e64b85
font_01_sfnt_off000084f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F4 10212 bytes
SHA-256: e493d4d82895c15ffffde30b52244361c237ff21a2b837d6e0e94d322c1ff23c

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