Malicious PDF — malware analysis report

Static analysis result for SHA-256 f75d2630d0a5329f…

MALICIOUS

PDF

83.2 KB Created: 2021-05-12 07:01:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: a7ede82a3cb45ad0d02df4b369293526 SHA-1: 231c354e7fde375a4634d9f663bde7511ba21f78 SHA-256: f75d2630d0a5329f9a153ee6f6fbf49afe6d1410dbdfa95278eb383455e2bdbb
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/strik?utm_term=the+book+thief+part+2+and+3+summary In PDF document text
    • http://thedouche.xyz/4462724989642ffs.pdfIn PDF document text
    • http://vipmanmarket.space/6048522893727r2a.pdfIn PDF document text
    • http://hamlikjorettoop.ru/589181189000qizi.pdfIn PDF document text
    • http://thepropheticapp.com/lakavamajawiwexixepe93l17.pdfIn PDF document text
    • http://wisitens.online/12391304755nvv9a.pdfIn PDF document text
    • http://bighome.space/keketafudevupunajetom3gzc.pdfIn PDF document text
    • http://yogist.fun/element_roku_tv_customer_servicefxbgx.pdfIn PDF document text
    • http://new-leggins.site/how_to_stop_program_from_using_internet_windows_7awsq0.pdfIn PDF document text
    • http://shoop-fk.ru/79764609313yp4em.pdfIn PDF document text
    • http://wordwild-store.com/mitsubishi_mr_slim_troubleshooting_no_heatoa33w.pdfIn PDF document text
    • http://uablog.website/how_to_use_multiple_midi_controllers_in_logicc7o2f.pdfIn PDF document text
    • http://usene.xyz/machine_learning_algorithms_used_for_predictionrgpfk.pdfIn PDF document text
    • http://nigma24invest.online/rokaxelirpsnxt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/verirejon/27215682812.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/the_road_warrior_hawk_cause_of_death.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/how_to_add_accident_on_google_maps.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/batla_house_trailer_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/48979664103.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/55882494553.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/maroserukoda.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/dyson_v7_complete_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/bollywood_actress_hd_images.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/fajukopagogagelugatuf.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF838 5684 bytes
SHA-256: e15c8d69711a39fb36564e4fb45e014253027a5b7b9e51e8d82f229699dfdeff
font_01_sfnt_off00010b55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B55 11036 bytes
SHA-256: 1865c4624f17f427f3e806eea5a02eecd7863b3708b45ac99361c56e33ba04a6
font_02_sfnt_off000130d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130D2 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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