Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1a1448e416c34a0…

MALICIOUS

PDF

66.6 KB Created: 2021-03-16 07:06:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 614e03d49195d9fb75d61cc484273e00 SHA-1: 0b5b5f6601d5088e26c5643046679259a842be75 SHA-256: b1a1448e416c34a0d7db3643eaaabbce8916b0ecacb8295ea8f29e8f60025097
212 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 and 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 0.6589

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/aws?utm_term=how+much+does+a+parrot+cost+in+the+philippines In PDF document text
    • https://cdn-cms.f-static.net/uploads/4490140/normal_6018b103c308e.pdfIn PDF document text
    • https://vutavevivusupe.weebly.com/uploads/1/3/0/7/130776898/1663795.pdfIn PDF document text
    • http://tiwilib.iblogger.org/98094141398.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469349/normal_602a14a262364.pdfIn PDF document text
    • https://pubabugolutaj.weebly.com/uploads/1/3/2/6/132680974/2645229.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410695/normal_5fc828c0308a5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458829/normal_5fcb22de0e274.pdfIn PDF document text
    • https://donasidavojixa.weebly.com/uploads/1/3/4/4/134494786/935145.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/kobogasalewaxigubud.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/exercice_barycentre_corrig.pdfIn PDF document text
    • http://desakoda.rf.gd/atkinson_dam_fishing_report.pdfIn PDF document text
    • https://6f2fb29c-15f2-4b08-b525-3eb91a7f0a41.filesusr.com/ugd/c3548c_2cd193e66286494f9b3244079e6f2347.pdf?index=trueIn PDF document text
    • http://gagimuludodu.epizy.com/badder_than_bad_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/bihar_board_10th_result_2012.pdfIn PDF document text
    • http://woxeladigono.rf.gd/how_to_fix_a_outboard_motor.pdfIn PDF document text
    • https://s3.amazonaws.com/tumuzu/can_you_order_clothes_from_ross_online.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/19927082437.pdfIn PDF document text
    • https://9a4b5e96-23fe-4021-9525-787506808755.filesusr.com/ugd/b3318b_dd6b658d91f6470d8450ae891aabc417.pdf?index=trueIn PDF document text
    • http://kepinud.rf.gd/bajind_marathi_kadambari_free.pdfIn PDF document text
    • http://newigumumakewi.epizy.com/how_to_describe_climate_in_english.pdfIn PDF document text
    • https://b0b89e74-75d6-43b0-bb8f-fa2cd9bd5f5b.filesusr.com/ugd/b5ae3e_31ca871564bb4434abb6a2c0fc5dddb9.pdf?index=trueIn PDF document text
    • http://gokojap.epizy.com/what_is_once_more_to_the_lake_about.pdfIn PDF document text

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