Malicious PDF — malware analysis report

Static analysis result for SHA-256 80f7fd85e82243ae…

MALICIOUS

PDF

61.3 KB Created: 2021-03-06 09:00:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 6d4fa098adc6b2d4d955a85dbe34f555 SHA-1: 175c93298b754272184bd3e56ed86947ff99cd7b SHA-256: 80f7fd85e82243ae8fde2a4c8937cb29be95f8580215c2be6e6e2ec4a51564f2
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

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 0.6992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://mezovuduw.ru/award?keyword=whirlpool+top+load+washing+machine+error+codes+fe PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4413458/normal_60017435b42a2.pdfIn PDF document text
    • https://numetoximo.weebly.com/uploads/1/3/4/7/134717633/5884806.pdfIn PDF document text
    • https://pedumodab.weebly.com/uploads/1/3/1/6/131637036/bofogasijexek-sanona-lezemimav-surululake.pdfIn PDF document text
    • https://lexawuvake.weebly.com/uploads/1/3/4/6/134610488/bofirup-volaronegagiz-fiwonarujunofog.pdfIn PDF document text
    • https://xisofigutuf.weebly.com/uploads/1/3/0/7/130740477/sujowesasuporen_zasekasugew.pdfIn PDF document text
    • https://kovajokuluvemu.weebly.com/uploads/1/3/5/3/135335912/nizenorutetoxub-xirulasuw.pdfIn PDF document text
    • https://bojufare.weebly.com/uploads/1/3/1/0/131070992/gesideli-sumerelum-pemojewiseku.pdfIn PDF document text
    • https://rerijore.weebly.com/uploads/1/3/1/8/131856643/lidejapiv-mijusoxupubax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecaecb7f-d534-4234-904c-b809d13f3e0b/marketing_digital_que_es_y_cmo_funciona.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af8cad9a-e10d-466d-8617-6c096466aad3/nordictrack_audiostrider_990_price.pdfIn PDF document text
    • https://200c4c3d-185b-4246-b99f-f40cd7065c99.filesusr.com/ugd/3ed902_d402e6781b69466d9d0daeae40863054.pdf?index=trueIn PDF document text
    • https://1237a3da-0b33-4890-9ba9-974507bf2590.filesusr.com/ugd/3e0cb9_2cf05fa35627466ebede019bb24b15e1.pdf?index=trueIn PDF document text
    • https://5bf49506-6ef1-42f8-8f90-7e3689255fd3.filesusr.com/ugd/8fe1bf_4ee55f47ff8847518054c5a1f88971c5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/753f66a2-6b6b-4ad8-8e4a-f03a950d6b45/what_does_customer_experience_manager_do.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14f5ff15-53c9-4132-b309-ce9338acd9c8/cepher_bible_review.pdfIn PDF document text
    • https://69c5641f-197a-42c1-bef1-daa502c1f1d7.filesusr.com/ugd/948cea_70abed175d14469bb604dd4d7430eb4c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d44f938-606b-454e-9205-04ce75153f72/what_are_the_different_styles_of_country_music.pdfIn PDF document text

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