Malicious PDF — malware analysis report

Static analysis result for SHA-256 445a7b9a70316a89…

MALICIOUS

PDF

75.2 KB Created: 2020-10-19 17:05:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 1672d12b301f57af8d0c9cb057629393 SHA-1: 9b3833ef95dfb4e549f62a87a89933ddeb29e4dd SHA-256: 445a7b9a70316a89576228f81abc0df0bc816766ced03f94ba3f1b61b6690e39
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a significant number of embedded links pointing to external websites, identified as a link farm. One of the primary links directs to 'https://gettraff.ru/wb?keyword=swtor%20guardian%20guide', which is flagged as a malicious redirector. The extensive use of disposable hosting and link farming suggests a malicious intent, likely for SEO manipulation or to distribute further malware. No scripts were extracted, and the document body is heavily obfuscated.

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/wb?keyword=swtor%20guardian%20guide In PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/4038194.pdfIn PDF document text
    • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/539812.pdfIn PDF document text
    • https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/da4292937454ee.pdfIn PDF document text
    • https://lixaworone.weebly.com/uploads/1/3/1/8/131871871/01c1b3c5bd51c93.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/3006570.pdfIn PDF document text
    • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/5816851.pdfIn PDF document text
    • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/divepubebi-lusabunuxoteb.pdfIn PDF document text
    • https://kuvofexe.weebly.com/uploads/1/3/1/1/131163751/mirabagiwazodupaba.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/7628721.pdfIn PDF document text
    • https://lupolaluxu.weebly.com/uploads/1/3/2/6/132681144/2727007.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/jelefe.pdfIn PDF document text
    • https://sujajikozodes.weebly.com/uploads/1/3/1/3/131384638/ruvukavo.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/bokisoj-sivagafa-guzezivobo.pdfIn PDF document text
    • https://zekuwatifakaxi.weebly.com/uploads/1/3/2/8/132815855/risabibal-zebuwovaweb.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/8767144.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368495/normal_5f883c9c93d17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365584/normal_5f8a1ac9a7b15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376600/normal_5f8a03d987e57.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://cdn.shopify.com/s/files/1/0498/9331/0631/files/honda_ecm_2800_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/0390/2619/files/lone_ranger_and_tonto_fistfight_in_heaven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/1250/4731/files/dewufekokiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9074/6271/files/lilburn_middle_school_supply_list.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC17 4860 bytes
SHA-256: eb285d7a5630a8de5293b9c0ee0371317ce9dd13b63d35358d807b25fc602509
font_01_sfnt_off0000ecb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECB3 10720 bytes
SHA-256: 46b8463dfa96d60ece5d588d716d825ef6238bed2959177991ac2bba0521ca0d
font_02_sfnt_off00011144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11144 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71