Malicious PDF — malware analysis report

Static analysis result for SHA-256 a02795ce016332ab…

MALICIOUS

PDF

65.6 KB Created: 2021-04-02 05:22:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d25e28a46d5ed79618acbc834efda759 SHA-1: dd6fbbfeb277cd00e8e6b3429e68a93242c9495e SHA-256: a02795ce016332abb5ad6583e51b9e1ebc0138d1845d052b5dc3b1aba2922487
124 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains numerous embedded URLs, with a significant portion hosted on disposable domains, indicating a potential link farm or phishing lure. The presence of these links suggests an attempt to redirect users to malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6087

Heuristics 4

  • 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
  • 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://vilenefex.ru/strik?utm_term=how+to+adjust+salt+in+water+softener
    • http://riniwodifole.medianewsonline.com/sorting_array_in_c.pdf
    • http://redatimiwanal.iblogger.org/58656641617.pdf
    • http://pabakijizozid.iblogger.org/motuworixufo.pdf
    • http://bumasujofoj.getenjoyment.net/sugewiguzofuseriviwo.pdf
    • http://jusukigib.sportsontheweb.net/balanitis_candidisica_tratamiento.pdf
    • http://nijopepeviliwe.22web.org/how_to_draw_without_reference_photoshop.pdf
    • http://gilumesu.mypressonline.com/xanoxiveletazoxunazolut.pdf
    • http://repofifimi.epizy.com/siremowapexejorelewagege.pdf
    • https://s3.amazonaws.com/lupuvogotog/facebook_confetti_questions_and_answers.pdf
    • https://4a5bfc55-71df-4474-8f3e-9f6aca65c64b.filesusr.com/ugd/29b6ce_2c98701ffe75476aa9dc601dd0fe38d9.pdf?index=true
    • https://7737876a-f762-42ef-af6f-18b78abacabf.filesusr.com/ugd/9066bd_7c9c3ac73aeb480b8d17b4cdc48704a5.pdf?index=true
    • https://s3.amazonaws.com/wapabefizosumi/marie_antoinette_film_viewing_guide.pdf
    • https://9b704b87-3668-414c-a24e-b30400fe0e33.filesusr.com/ugd/51c472_d1cfadcb046d46adb768baf4137b1b95.pdf?index=true
    • https://s3.amazonaws.com/vitelitubovuluj/expository_non-technical_writing_sample.pdf
    • https://926da24b-d3df-4aea-ac1b-ebdf7359a9e7.filesusr.com/ugd/fef925_6ad26d97102b4c039808628402536197.pdf?index=true
    • http://koxowasone.epizy.com/mitexofaz.pdf
    • https://s3.amazonaws.com/zuwosil/9251328142.pdf
    • http://moxutomib.rf.gd/lujogesu.pdf
    • https://uploads.strikinglycdn.com/files/97dea24d-57e9-499b-b479-3f31546d6aa2/21140596386.pdf
    • http://madepadejatutof.onlinewebshop.net/inferring_character_traits.pdf
    • https://uploads.strikinglycdn.com/files/e6be2efa-3546-49ff-9c00-3365ce67bb52/mivulebadolasobune.pdf
    • https://53f03ce6-db0b-4f41-9bfc-6956ba41e1f4.filesusr.com/ugd/727e0f_2fbc98ed8ce941e5af6bdb60d4056d44.pdf?index=true

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