Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaab48677e521b4e…

MALICIOUS

PDF

69.7 KB Created: 2021-03-09 06:51:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a30a8c305ba23273970b197629e2ec60 SHA-1: bf38ebd723d0caac65443b42419f0c48f298a0bf SHA-256: eaab48677e521b4e9b8bfab8a32052e268b37649c6ce811b2ce313f0bd9d7be9
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs, suggesting it functions as a link farm or a lure to external malicious content, likely related to software downloads. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of using disposable hosting for such lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/award?keyword=pdf+to+word+converter+free+download+windows+10 PDF link annotation
    • https://cdn.sqhk.co/jobubexivex/DVEgije/surviv._io_battle_royale_unblocked_at_school.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418401/normal_6023015a5f965.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455174/normal_5fdb9aed402c2.pdfIn PDF document text
    • https://cdn.sqhk.co/pafatewodoju/RphbF50/deer_hunter_2018_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/vorinugobol/tic1jic/69552723342.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402267/normal_600bc5358021e.pdfIn PDF document text
    • http://vudifabofugejij.medianewsonline.com/viper_auto_start_draining_battery.pdfIn PDF document text
    • http://fekowepiz.mywebcommunity.org/lg_ductless_split_system_tech_support.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421627/normal_5feb57ac5671b.pdfIn PDF document text
    • http://mutujejeturuduf.medianewsonline.com/que_es_el_liderazgo_en_la_psicologia_organizacional.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/c8a4f88c-7f9b-4427-bd10-8a7fa62fbf27/6248153128.pdfIn PDF document text
    • http://dezezefisimel.rf.gd/annual_return_of_company.pdfIn PDF document text
    • https://836291d8-7b77-40db-be8c-3105928c7ef3.filesusr.com/ugd/aae074_4942c26c21054f0a98097120eace61da.pdf?index=trueIn PDF document text
    • https://7e6b698e-d56f-4a21-8c48-787e2f6d39f4.filesusr.com/ugd/7836c9_8b0595096dd248deb3cbe771748de33b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0df5497-8424-4deb-9f6a-e3aaabbcc520/socio-cultural_environment_meaning.pdfIn PDF document text
    • https://9ef77391-fdd1-48d8-ba15-364b07375333.filesusr.com/ugd/ebefdf_b2c10b06b13d47418221895693ab7c92.pdf?index=trueIn PDF document text
    • http://jutodit.epizy.com/how_to_use_a_tiered_steamer.pdfIn PDF document text
    • https://f608bf75-187c-4b28-9621-af925c05c2b6.filesusr.com/ugd/05e3ad_c15829f6043a4277822f1ae915e9c302.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/82670014-b5ab-47cc-b022-00c53b128611/the_man_in_the_high_castle_season_4_wikipedia.pdfIn PDF document text
    • http://belajuba.epizy.com/90621650578.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_off0000d330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD330 5360 bytes
SHA-256: 70e84b156f164638ef97909d23e2627a818418f37eda55e2ddbfce7b35a92e7b
font_01_sfnt_off0000e595.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE595 10444 bytes
SHA-256: 8616d6ce11a9111ebe63ca11c93123ebc9483f1e71de3e43581c4453e23ded37

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