Malicious PDF — malware analysis report

Static analysis result for SHA-256 7942266ee1785023…

MALICIOUS

PDF

75.9 KB Created: 2021-04-03 05:10:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e4b6fb1d0324af5bd5bad32c99d0d534 SHA-1: e6388ad48621e996c3946356a3b142748437970e SHA-256: 7942266ee17850233d90a96c5f4144f501c20dd7863a2a4e61a373c5df75c07a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a large number of embedded URLs, many of which point to disposable hosting or redirectors, suggesting a phishing or credential harvesting attempt. The document body, though heavily obfuscated, contains references to a "blank bingo sheet template" and authoring metadata, likely serving as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://maypoin.ru/123?utm_term=blank+bingo+sheet+template PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4485318/normal_5ff14ccd72cda.pdfIn PDF document text
    • https://gumebasa.weebly.com/uploads/1/3/4/5/134509515/migupuralaxamod-nudugekekidazaf-vasirobozibidox-podenavu.pdfIn PDF document text
    • https://cdn.sqhk.co/lovaxixifew/jgAa9hd/likofegopok.pdfIn PDF document text
    • https://cdn.sqhk.co/budajawisore/h6icrxc/rolly_hill_breeders.pdfIn PDF document text
    • http://redirerer.medianewsonline.com/addiction_treatment_homework_planner_4th_edition.pdfIn PDF document text
    • https://tofixotiz.weebly.com/uploads/1/3/4/6/134621190/gemat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476281/normal_5fd3b0e240907.pdfIn PDF document text
    • http://wonozudobitisog.scienceontheweb.net/88404276056.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/QZ8hiy0/86962079916.pdfIn PDF document text
    • http://vitetoka.scienceontheweb.net/36909836802.pdfIn PDF document text
    • https://nukijevexumi.weebly.com/uploads/1/3/4/7/134714394/jenevedegej_sitiguxifekozo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386074/normal_605b02ac69c3f.pdfIn PDF document text
    • https://forijadezututeg.weebly.com/uploads/1/3/0/8/130813765/9cf4b.pdfIn PDF document text
    • http://kafidovomiguvo.mywebcommunity.org/approaches_and_methods_in_language_teaching_summary.pdfIn PDF document text
    • https://cdn.sqhk.co/jesupasuzoku/ajpSgdK/hill_climb_racing_2_cheats_2019_no_verification.pdfIn PDF document text
    • http://pevojatinolotej.22web.org/futolarivisizujalemu.pdfIn PDF document text
    • http://wipebodu.mypressonline.com/73988479328.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/79cd1f8f-5129-41d6-8493-b115fff633f7/desedex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc75b229-493f-4f8c-a844-4507954bc4ca/rofukegaguzodutesilew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9a01391-e571-48f5-9e85-fa0a2022581c/what_is_the_relevance_of_report_writing.pdfIn PDF document text
    • http://nuxumejaxumem.epizy.com/whatsapp_free_for_ipad_mini_4.pdfIn PDF document text
    • http://sevuvev.epizy.com/sufezalurofaked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f124a6e1-23e7-445c-a374-07e251a186fe/nursing_drug_handbook_2020_online_free.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_off0000e95f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95F 5388 bytes
SHA-256: fd3bd3eefc195e8140c1b176482a991bdcd2e47add9b965df5e91c8f878d4b2c
font_01_sfnt_off0000fb96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB96 10940 bytes
SHA-256: aa60edc801f94210b8cde3af8ac1b4df8e938fd217fe0e04d39cd3d2557bd37b

Open this report in the interactive analyzer, or submit your own file for analysis.