Malicious PDF — malware analysis report

Static analysis result for SHA-256 050e166637568b6f…

MALICIOUS

PDF

82.7 KB Created: 2021-04-04 02:02:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: efb94cd691b2aea702c4ee7fe8377e74 SHA-1: c2746bae11f017753713a6d2cb902fadc9a8cf34 SHA-256: 050e166637568b6f6c8cc8b6e357478ccfc7ec796751c24b764e55821a9b9242
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, many pointing to disposable hosting, and includes a UTM parameter suggesting a marketing or tracking purpose. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as phishing or a trojan. The document body, though heavily obfuscated, contains text related to 'digital transformation roadmap template', which is likely a lure to direct users to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://fokemale.ru/123?utm_term=digital+transformation+roadmap+template PDF link annotation
    • https://cdn.sqhk.co/retakabif/gchcQgh/jabukuxilogarevaxulaveb.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/hcCjijb/flex_flow_vs_flex_direction.pdfIn PDF document text
    • https://cdn.sqhk.co/lesasafo/gg7hjWO/villanova_throwback_basketball_shorts.pdfIn PDF document text
    • https://cdn.sqhk.co/tajalawad/fgjKhcQ/45223640911.pdfIn PDF document text
    • https://limopepubev.weebly.com/uploads/1/3/4/6/134627214/pisupuriwapi-relasimoxutuke-kopivu.pdfIn PDF document text
    • https://fuxiwuzepideka.weebly.com/uploads/1/3/1/3/131381491/gerurumugesuzu_dupetik_malunogifobajo.pdfIn PDF document text
    • https://tikedamo.weebly.com/uploads/1/3/1/4/131453682/9842936.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://b0c090b1-cb02-46d8-8a69-3fb9d82636b6.filesusr.com/ugd/4dbf3f_43c97b61170545c6a76194d719f24e5a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/81f58296-e148-40ce-a061-14aaf13f08da/american_hunter_deer_feeder_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b32b2d1-8487-43aa-95ec-28aa14d352ba/2007_ford_e350_van_owners_manual.pdfIn PDF document text
    • https://486bfeb6-87d8-40a3-812f-3449909c9139.filesusr.com/ugd/81b904_8fe2f5395b43402bac44310c72a7da61.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/putelekireza/how_to_install_rinnai_rur199in.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10898cf6-4d0d-47f8-96ed-7d06efe6f3aa/lalajevemerit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94a18496-e110-4d48-9e52-9cf95a7ada79/980181064.pdfIn PDF document text
    • https://8d59741e-369e-44be-b01e-8fbcb09d2d01.filesusr.com/ugd/7cefa9_dc09d16159d5475a8083a329c1e14edb.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d018aed6-db1b-41dd-8149-d08a7e0266dd/97616991345.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c2ae787-0505-464a-b495-91f99e69df98/diferencia_entre_quimica_organica_e_inorganica_yahoo.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/giants_injury_report_week_1.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/company_of_heroes_movie_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3aff653-0c15-43e7-82e6-eaf0397b1d41/52085027862.pdfIn PDF document text
    • https://c827806f-f9bf-4fd3-a4ce-e487c020fa79.filesusr.com/ugd/6fd45c_a4b3a1d5468e4f0c99512c058f40eb57.pdf?index=trueIn PDF document text
    • https://47a25507-5c4f-4e73-9b7c-0c49514c8174.filesusr.com/ugd/e00bd3_95ad3aa2a2304b198d95eaf5f87234d3.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/338df481-3929-4b2f-8110-5c07e3df24c4/davosajon.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_off0000f7cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7CC 5148 bytes
SHA-256: 05caa14f0627a09bff2f8965df90f55f94aec5a7965ee6fb21d03bc969e2c435
font_01_sfnt_off00010932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10932 10608 bytes
SHA-256: abc72f3e4976f9e5d22f9b3b65a0b64b90b8b507d5c61d42e983ccdb28b634c7
font_02_sfnt_off00012d65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D65 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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