Malicious PDF — malware analysis report

Static analysis result for SHA-256 38ebdf649bf9d3f5…

MALICIOUS

PDF

77.9 KB Created: 2021-05-11 19:45:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6cf2c574b59f015907a1b6075734c703 SHA-1: c29b2569a77cd0856a2ca2abc88bd7079ce12e23 SHA-256: 38ebdf649bf9d3f5bbe837b97456055f25afe7ae42d1bf10c10bfb4424496cb9
196 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many of which are part of an SEO link farm designed to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' indicate a phishing or malware distribution attempt. The embedded URL 'https://botokaw.ru/strik?utm_term=john+deere+310sg+service+codes' is a primary indicator of compromise, likely serving as a redirector to a malicious payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://botokaw.ru/strik?utm_term=john+deere+310sg+service+codes PDF link annotation
    • http://lnstgramhelpcopyright.com/migabanukegimaz1xdr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499653/normal_6003f133b5ae1.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/bronte_books.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/aplikasi_adobe_audition_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/espaol_lecturas_primer_grado_2000.pdfIn PDF document text
    • https://falufanimuv.weebly.com/uploads/1/3/4/3/134377488/70e0082.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/24v_dc_geared_motor_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/jeralekobole.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405953/normal_6029b4a161953.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/are_public_relations_jobs_in_demand.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/appalachian_trail_map_north_carolina.pdfIn PDF document text
    • https://vulotimemoje.weebly.com/uploads/1/3/4/8/134846769/6121230.pdfIn PDF document text
    • https://tapifulo.weebly.com/uploads/1/3/4/3/134345172/jiraletuverik.pdfIn PDF document text
    • https://zazalefofano.weebly.com/uploads/1/3/4/5/134578352/7f36f83.pdfIn PDF document text
    • http://kindraretterath.com/how_to_relax_tennis_elbowl4izc.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/wolomiwe.pdfIn PDF document text
    • https://xijafidul.weebly.com/uploads/1/3/2/3/132303061/4965923.pdfIn PDF document text
    • http://cheapkeys.site/robepomulujafafavarkfds.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/think_fast_and_slow_audiobook_download.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/dc322f8f-70d1-4157-af59-8337ed29ba50/precalculus_textbook_mcgraw_hill_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccb6ce22-ac3e-4906-8ff8-e234ec6927e8/ejemplos_de_actas_de_reuniones_de_trabajo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1252824-2061-4781-834e-ea82e1e40af6/does_sony_xplod_have_bluetooth.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf230af1-994e-4bbc-a535-4406a05ffca1/dujexexujalesonavebibev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5982b045-69dc-4a24-8207-cd6696385fa3/mukuxapanokijanunuri.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E3 5368 bytes
SHA-256: f21c3eca921099765ef5c08be681fb3bb944389197bf0832a69ec4b48d1ad3d6
font_01_sfnt_off0001032d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1032D 11424 bytes
SHA-256: 3b08c0dec705f1057b50529353518d218100fd02b969226d16e39d192ae9f13f