Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bad7f02d3897fcd…

MALICIOUS

PDF

79.9 KB Created: 2021-04-08 01:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: cb22b96b0361c5c7a1bdc525a7c601f9 SHA-1: 53c6b3d826a5fc690d644423509d27e79f607f9a SHA-256: 1bad7f02d3897fcd543d07429dbf94b55f6b327fe59ab356b586c02d6d04a0ba
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to a common household item, the 'weed eater', to entice users to click on a malicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan PDF. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest it's designed to lead the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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=my+echo+weed+eater+won%2527t+start PDF link annotation
    • http://bamirajewenexo.medianewsonline.com/california_mathematics_grade_7.pdfIn PDF document text
    • http://pifovabu.getenjoyment.net/31581730347.pdfIn PDF document text
    • http://tixesikixux.mygamesonline.org/93875617842.pdfIn PDF document text
    • https://ribarifi.weebly.com/uploads/1/3/4/2/134266405/jasonosikaka.pdfIn PDF document text
    • http://rumurel.mywebcommunity.org/can_bus_specification.pdfIn PDF document text
    • https://nalodewemutut.weebly.com/uploads/1/3/1/1/131164475/xijifudosoluninof.pdfIn PDF document text
    • http://tatuxuvoziparu.mywebcommunity.org/jokovudofojomatakedudosex.pdfIn PDF document text
    • http://sifaritube.sportsontheweb.net/cementoenamel_junction.pdfIn PDF document text
    • https://jeluvuxibobuna.weebly.com/uploads/1/3/4/0/134017570/tanepavasajud-tesunexuf-vigajivusebo.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/a9ddbd50-aef7-4b19-b563-802393aca1bb/titepamotiwa.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/11134830841.pdfIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/aashiqana_movie_song.pdfIn PDF document text
    • http://lavapokapajemob.myartsonline.com/irrelevance_theory_of_capital_structure.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/the_witch_of_portobello_book_cover.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d35b2b5c-0f65-4ef1-9517-b807ccd84df6/what_is_the_biggest_living_creature_on_earth.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51eee7bf-a9ca-4eda-8fd3-14e4cb19b927/444_in_strongs_concordance.pdfIn PDF document text
    • https://78bdfa25-736e-4945-a764-db21511aacb9.filesusr.com/ugd/9bd82e_22fc4cc21e7a4490a71d8bd758ccbabb.pdf?index=trueIn PDF document text
    • https://e5447efa-8854-4d04-834e-f0bbd7438c8b.filesusr.com/ugd/ac612b_6f9728c5b9bb4ec6aac26f039efb45c7.pdf?index=trueIn PDF document text
    • https://91e55214-10ad-44cf-a10a-60a9392df58b.filesusr.com/ugd/e1c37d_27ebf7ae58ca4234b79b591208705b3f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fezenur/instalar_android_tv_en_smart_tv_philips.pdfIn PDF document text
    • https://233b4d2f-9c44-4004-b776-098ebc281e6f.filesusr.com/ugd/7f980c_67132087a8aa47ccaba97dbc22155b7a.pdf?index=trueIn 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_off0000f98a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF98A 5228 bytes
SHA-256: 8e1679696dc9c594c28920a64d3542269a8b76c8752a53983be6bf2c31095136
font_01_sfnt_off00010b74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B74 11784 bytes
SHA-256: 50b4cc1af6fd9a5fc392f1aaf31bbca7ea4cee82a63df08daa665401b22dc9ef

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