Malicious PDF — malware analysis report

Static analysis result for SHA-256 0df2a4e0e1b10b21…

MALICIOUS

PDF

89.1 KB Created: 2021-04-06 16:59:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 470d257b0c45508642144e32cc806e20 SHA-1: d22af5fe074d76fe25de3c6683601ef2a806da24 SHA-256: 0df2a4e0e1b10b21a5a6cb25ffecaa3f26da37db598269ee4323926dd41eed1d
254 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, with a critical heuristic firing for 'PDF_MALICIOUS_REDIRECTOR_LINK' pointing to 'https://dafemum.ru/wix?keyword=exorsus+raid+tools+notes'. This indicates the document is designed to redirect users to potentially malicious or scam-related content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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
  • 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.
  • 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.
  • 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://dafemum.ru/wix?keyword=exorsus+raid+tools+notes In PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/bubble_level_tool_android_app.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/molomabukawasoxij.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/powerpoint_templates_progression.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417986/normal_605c6b3408996.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/juz_amma_surahs_transliteration.pdfIn PDF document text
    • http://eushopvmn.site/how_to_start_business_in_pakistanrdq2o.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426966/normal_60029e3a91e1f.pdfIn PDF document text
    • http://small-italy.space/nordictrack_exp1000i_reviewlimcu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487658/normal_5fdef6f8b80ea.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/retefipiwetibunupobuzeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380854/normal_5fd64448c638d.pdfIn PDF document text
    • http://jirafka.space/risk_register_constructionyudad.pdfIn PDF document text
    • http://foyou.store/what_is_the_new_heaven_and_earthft10u.pdfIn PDF document text
    • http://icily.xyz/costos_de_no_calidad_definicion6l6k1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372105/normal_60324efd999da.pdfIn PDF document text
    • http://fojibewuf.iblogger.org/joint_commission_report_a_complaint.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c33c3ce4-fa2f-4f19-9477-7a801b41b29e.filesusr.com/ugd/ebbcbd_bf979889bc0042ecbb5db71f324f9c70.pdf?index=trueIn PDF document text
    • https://50bf384a-eeac-4f26-a262-e2ba1a5e00ba.filesusr.com/ugd/17159d_528000529a79422c83b9982c7d7c26d2.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6329d67-5708-4937-8b9d-c79830671c71/57236013005.pdfIn PDF document text
    • https://f55c6975-0091-4942-a106-dc80285e5f9d.filesusr.com/ugd/8a4248_c94eb614b1734ce494373500bee9f1db.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1949de1-7fa4-4fdf-bd09-e8a0c141efbf/nespresso_usa_machine_plan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d7e59d0-434c-4759-920f-915652f254e1/ancient_greece_gods_and_goddesses_names_and_powers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2c2e4d4-083f-4324-8f0a-2e04a018aa45/75123186878.pdfIn PDF document text
    • http://latarugumajovi.epizy.com/nazolizidakubuvo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5a4532b-0925-4ee7-9e7f-291a02ccf76f/35715627930.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010005.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10005 4844 bytes
SHA-256: 1f56ffe105f3dd9ab697dfccb3173c93275a1befc950a1f29cab733be2a0a4e0
font_01_sfnt_off00011084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11084 2052 bytes
SHA-256: f71a47484c95d7a8a65244bd51e38c405cd89f9b07b6a5ad15c9a573391ef875
font_02_sfnt_off0001193a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1193A 11128 bytes
SHA-256: 1db8c694afcce1f17f5dea296876ce762c3d44806716430c8986acd9aec4aeab
font_03_sfnt_off00013f2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F2D 16340 bytes
SHA-256: de4d8b2f57bd79f1a868fabda613d9936b110e31710edd4728466090b424b6ff