Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6e0206c9202f5a9…

MALICIOUS

PDF

75.8 KB Created: 2021-03-05 00:01:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8377aaf7df85a9c2890ab0acc6fbc4bf SHA-1: f0484a60ab54abdde42960210a8441f05b2ac485 SHA-256: a6e0206c9202f5a9988fbe9ed6ab5de12088b8edb0d7f308f7e73cefff580e93
126 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, with a primary external URI pointing to 'xezojetit.ru/strik', likely serving as a lure to a malicious site. The document body, though heavily obfuscated, appears to contain search-related terms, suggesting a deceptive pretext for directing users to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://xezojetit.ru/strik?utm_term=is+percy+jackson+movies+on+disney+plus
    • http://kidufamipowanot.mywebcommunity.org/65967276396.pdf
    • http://zegumuwuvibeb.iblogger.org/tidesanupodavepowam.pdf
    • http://lomigakorak.getenjoyment.net/xedojibuwoluwebo.pdf
    • https://static.s123-cdn-static.com/uploads/4390638/normal_600644151f4bd.pdf
    • http://fesotisifofil.mygamesonline.org/jemigapogikafikowujon.pdf
    • https://static.s123-cdn-static.com/uploads/4462730/normal_5ffcfeed8d616.pdf
    • https://static.s123-cdn-static.com/uploads/4386842/normal_5fdcbc3996f53.pdf
    • https://cdn-cms.f-static.net/uploads/4369779/normal_603e35a5ac5bd.pdf
    • https://static.s123-cdn-static.com/uploads/4467955/normal_6006677784dcb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/lanaladu/2597410443.pdf
    • http://vomadiboliwod.rf.gd/microeconomics_theory_and_applications_with_calculus_3rd_edition.pdf
    • http://bodegifu.atwebpages.com/how_to_get_a_finance_degree_online.pdf
    • https://5ccda086-29c7-4024-8a93-689df1f3b89c.filesusr.com/ugd/ed8107_8feaf8fe48d342b9bac2cdb9342da849.pdf?index=true
    • https://9eaa565e-fb97-40b4-b096-d6760803f699.filesusr.com/ugd/55e2c6_e73ba27a621b453386a0af008d471ebe.pdf?index=true
    • http://fuvuvadut.onlinewebshop.net/how_to_deal_with_piriformis_syndrome.pdf
    • http://zelogano.epizy.com/do_you_get_paid_for_medical_studies.pdf
    • https://s3.amazonaws.com/jaloto/sezijovenijazefaga.pdf
    • https://s3.amazonaws.com/tinivukedeta/askerlik_tecil_bavuru_formu.pdf
    • https://ae26bae5-b1f3-4fb2-a0ba-5d2f2d23988c.filesusr.com/ugd/aec2ea_f0470bcd092f408287c07453226c9eaf.pdf?index=true
    • http://xawiwevivuzox.onlinewebshop.net/mekakomaj.pdf
    • https://s3.amazonaws.com/tedowafomaru/42802565865.pdf
    • http://pojozija.onlinewebshop.net/sylvania_portable_dvd_player_charger_walmart.pdf
    • https://s3.amazonaws.com/wifiduxezo/interim_report_legal_definition.pdf
    • http://nazowovemozugiv.myartsonline.com/4563650577.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea61.bin
c9c76a9f756742458a48e06c48632b3e6b0a1b891084b6c0f787927fc3ba2b3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA61 5460 bytes
font_01_sfnt_off0000fcef.bin
6cdbf3bf905bc6f7453ddfe0fac1e85f29e2413d823883bfca0852de0217f5fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCEF 10912 bytes

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