Malicious PDF — malware analysis report

Static analysis result for SHA-256 2da9d3bad547e094…

MALICIOUS

PDF

155.1 KB Created: 2021-03-29 08:13:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e5dcccda0b0d07837b40e6c6f4350274 SHA-1: 78d5ec861b11ab77aa6869d5b9ebb58363539ebb SHA-256: 2da9d3bad547e0945f0f9defd5684c0a28507aad44c5e37bad7a1b0a896faea8
184 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with at least one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, appears to contain keywords related to manuals, suggesting a lure to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 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://crophysi.ru/wix?keyword=yamaha+dtx+502+manuale+italiano In PDF document text
    • https://cdn.sqhk.co/foxoxaze/cBfggha/89972249123.pdfIn PDF document text
    • https://cdn.sqhk.co/fularulojoze/jcgf6N3/45393737387.pdfIn PDF document text
    • https://cdn.sqhk.co/sebixodof/ihiagdo/fnaf_piano_tiles_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/rafumufo/0CgccQO/modipo.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/fomixomafova.pdfIn PDF document text
    • https://s3.amazonaws.com/pigolo/dalijo.pdfIn PDF document text
    • https://xunuvetokogira.weebly.com/uploads/1/3/1/3/131384336/991320d21568b6.pdfIn PDF document text
    • https://lugumeduzox.weebly.com/uploads/1/3/0/7/130740149/a579ad56b37c.pdfIn PDF document text
    • https://kesaroxet.weebly.com/uploads/1/3/0/7/130775747/e42160fa1cc.pdfIn PDF document text
    • https://gedolumu.weebly.com/uploads/1/3/4/7/134761272/sonupig.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/91541109322.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuxanewelupeluv.epizy.com/jamiparamavozoj.pdfIn PDF document text
    • http://tobifovibel.rf.gd/how_to_help_childhood_trauma.pdfIn PDF document text
    • https://80172413-d145-4b71-b7cf-4a007d76ad29.filesusr.com/ugd/cacfd7_e6e6bee2f6054fd6bb100fdcc9fccf1c.pdf?index=trueIn PDF document text
    • https://78151a86-a557-4e49-81aa-a2539eea45c7.filesusr.com/ugd/204f4f_1bf09f7813fe48c4aa217bac60190265.pdf?index=trueIn PDF document text
    • http://paserarun.rf.gd/wd_my_cloud_local.pdfIn PDF document text
    • http://kixazogegome.epizy.com/1998_honda_shadow_vt1100_service_manual.pdfIn PDF document text
    • http://wasuvag.rf.gd/67588565784.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_off00020d2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20D2E 1768 bytes
SHA-256: 61220a0dae34d1298b72f9dc29e84aaedfd295c424e610d0b93cf322ab2cb80f
font_01_sfnt_off000215d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x215D5 5216 bytes
SHA-256: cc57aeeaa618ecbe495b616c8aed775ad911149a8749c71a0b7ec257e23bf27e
font_02_sfnt_off0002277d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2277D 18124 bytes
SHA-256: 8d5688acd9b3896cde97f6ddbe9e0385b4496848cd34cde3ecc84eb46cd1f231

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