Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c9abb9c8136bf53…

MALICIOUS

PDF

72.7 KB Created: 2021-04-28 19:17:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 33bdd18c6d4c8d47a406508247f1b5a3 SHA-1: e15f54021c1850343039f0a89a17b81066282ee5 SHA-256: 2c9abb9c8136bf53de6d15378afad677f9077002da39f90db7cb5b8e98b91df2
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7029

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://fokemale.ru/strik?utm_term=what+is+elizabeth+from+the+seven+deadly+sins+power+level PDF link annotation
    • http://pakamid.22web.org/19995774251.pdfIn PDF document text
    • https://pagipakudux.weebly.com/uploads/1/3/5/3/135343553/xuvanuzoparugu.pdfIn PDF document text
    • https://defasoxajex.weebly.com/uploads/1/3/1/4/131405962/boxulot.pdfIn PDF document text
    • https://gabatilijoden.weebly.com/uploads/1/3/4/7/134730515/bekilobirirezeruke.pdfIn PDF document text
    • http://bekowakiged.iblogger.org/avantree_audition_procast_manual.pdfIn PDF document text
    • http://jezolixepoj.22web.org/86168742398.pdfIn PDF document text
    • https://fimozafovobas.weebly.com/uploads/1/3/2/7/132741130/bulowatikajatinutu.pdfIn PDF document text
    • https://xinawekasev.weebly.com/uploads/1/3/0/9/130969151/7327018.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mudotepejix.epizy.com/budding_and_grafting_techniques_in_horticulture.pdfIn PDF document text
    • http://vewizoxevig.rf.gd/how_to_start_an_ariens_deluxe_28.pdfIn PDF document text
    • http://lelekon.epizy.com/polk_surroundbar_2000_instant_home_theater.pdfIn PDF document text
    • http://xekofelix.rf.gd/47526476692.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/miwatiwododolalis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e72bf368-2754-4f5c-a794-6dc091fd3e80/are_there_redback_spiders_in_california.pdfIn PDF document text
    • http://kugunimekuxaf.epizy.com/minonubojetalobo.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/58212499883.pdfIn PDF document text
    • http://zagebixomibolo.rf.gd/ericsson_mobility_report_november_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/63795785357.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20925b41-9bd0-4fe9-a27a-0c372b8bd295/92729756877.pdfIn PDF document text
    • http://bijigojufapoda.epizy.com/58645035324.pdfIn PDF document text
    • http://disukifas.epizy.com/pizonuvujefudige.pdfIn PDF document text
    • https://s3.amazonaws.com/podawakumepewez/gokefo.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/mifofezobilasugap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/235a6ae6-3384-43bb-a532-9200fa9c7e32/the_entertainer_violin_duet_sheet_music_free.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102E6 5740 bytes
SHA-256: 02bd680b7da20cbce552613a30288dee18789ca6e0f507498b3cd1ccf24c3e83

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