Malicious PDF — malware analysis report

Static analysis result for SHA-256 5798d46a5b6e5061…

MALICIOUS

PDF

41.5 KB Created: 2020-09-20 01:57:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 013e5fe679187e22648b177747e622ae SHA-1: bd54b3ee4d6d1f48790779272a8e08a46d48ea2c SHA-256: 5798d46a5b6e50611da2122bec1b3a9eacba49807ab5996a947863ce1315012b
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a high density of embedded links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary link directs to a known malicious redirector. This suggests the document's purpose is to lure users to malicious sites, likely for phishing or malware delivery. No scripts were extracted from this sample.

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://ttraff.ru/wix?keyword=swtor+ec+nim+guide In PDF document text
    • http://files.hocosoccer.com/uploads/1/3/1/3/131398076/6112176.pdfIn PDF document text
    • http://mufareb.arthurgietzelt.com.au/uploads/1/3/2/8/132814930/dovisafeka.pdfIn PDF document text
    • http://mejom.driversonlyusa.com/uploads/1/3/2/8/132815015/zaxatet.pdfIn PDF document text
    • http://sibape.niallbishop.com/uploads/1/3/1/4/131407995/828857.pdfIn PDF document text
    • http://nanagobak.brooklynondemand.com/uploads/1/3/1/6/131606197/buboxu.pdfIn PDF document text
    • http://nugavadab.carolconnor.net/uploads/1/3/2/6/132696056/kodekapimofi-katekogiriru-nobexezeges-vutosetevum.pdfIn PDF document text
    • http://xuxudujej.shupik.com/uploads/1/3/2/6/132682892/lufofukumomataz_gufasug_lovaz_sawik.pdfIn PDF document text
    • http://wugijir.jessicaadnani.com/uploads/1/3/0/8/130874050/31e7d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e5ba9235-936c-4fd8-8b6c-b6ed8ecab1fa.filesusr.com/ugd/e1c37d_874551c8f77e4349aab6a3140ff94ba4.pdf?index=trueIn PDF document text
    • https://1d7d5c15-8790-48a4-bdb7-5a0a72f591b7.filesusr.com/ugd/429b25_1d1223ee10d64210be5c37dd82791c7f.pdf?index=trueIn PDF document text
    • https://06731322-c0a5-421e-b435-0cc78aef1039.filesusr.com/ugd/9cc572_3a4e7d098c16456d86fc80c9fd47f5a8.pdf?index=trueIn PDF document text
    • https://299f18ca-0009-4df5-a156-c4ad42d10ca3.filesusr.com/ugd/57c819_0fa0c3e7eed84f5f9209bbb2eaccfe12.pdf?index=trueIn PDF document text
    • https://72c77544-f9fb-4acb-b118-a88fceaf784c.filesusr.com/ugd/2b98a3_195e63d89c2740d2a4fffe8760eae238.pdf?index=trueIn PDF document text
    • https://6e0a0114-3798-4e61-a479-fc39a3953890.filesusr.com/ugd/6fd45c_e3c9b24863e14f53b4fd40eac3d5a109.pdf?index=trueIn PDF document text
    • https://3106d9bc-02ba-4852-a144-cf2167bb9bda.filesusr.com/ugd/d38238_3c80b5dc89f74c2d85e8f3c019ec68b8.pdf?index=trueIn PDF document text
    • https://2a1a0639-9299-464a-ad85-6ff763aa240b.filesusr.com/ugd/1fa6dd_bb5f2fdbad4a4bf1a51565842c0e477d.pdf?index=trueIn 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_off00006508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6508 5036 bytes
SHA-256: 2e4d5449010680ac39d7b8d01b1c5665f6e744a53c101f6ce8a164cbb49c2db3
font_01_sfnt_off00007627.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7627 10284 bytes
SHA-256: 7037eb340aab2377efb1a6d2aca76f257400747f62e8bac509c7fb8f502f1db0

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