Malicious PDF — malware analysis report

Static analysis result for SHA-256 08671653962eaaba…

MALICIOUS

PDF

92.7 KB Created: 2021-06-07 23:35:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3f420cdd8f190b765893fc2cc40f231a SHA-1: 03a494fc4ce88edf742e0d5dc3758e36d9f1587b SHA-256: 08671653962eaabae5a198654e2c3d863481dba1a666b81f981bf08b5116146d
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, identified as a link farm, likely intended to manipulate search engine results or direct users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, with the embedded URLs pointing to potentially harmful content. No scripts were extracted, but the PDF structure itself is indicative of a phishing or SEO spam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7465

Heuristics 5

  • 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 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://laborke.ru/pbw?utm_term=will+drinking+pee+kill+you PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4376372/normal_5fd8072b53316.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427781/normal_60151c225a0b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447669/normal_5fc6f1228dcd3.pdfIn PDF document text
    • https://siraxaroxaran.weebly.com/uploads/1/3/1/4/131483069/fadewizigi_mijupanal_bexilef_ruxedikog.pdfIn PDF document text
    • https://radoxawema.weebly.com/uploads/1/3/0/7/130738714/lukuxuwuxitar-xuveve-labajexin-xovovilepuja.pdfIn PDF document text
    • https://nepejudakolop.weebly.com/uploads/1/3/4/8/134876169/gutufagitisewav.pdfIn PDF document text
    • https://ladazogigewor.weebly.com/uploads/1/3/2/6/132681379/68fec5.pdfIn PDF document text
    • https://dajolulozofupo.weebly.com/uploads/1/3/4/6/134634221/xazitave_wokedopibetu.pdfIn PDF document text
    • https://suwagapijewes.weebly.com/uploads/1/3/2/6/132682436/420327a05.pdfIn PDF document text
    • https://gimogelego.weebly.com/uploads/1/3/4/6/134601730/79098c09940d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452834/normal_605c981b6ec4d.pdfIn PDF document text
    • https://dudunetexuzo.weebly.com/uploads/1/3/1/3/131379759/litewegod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490953/normal_60433d7668a5a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426972/normal_5fefd45bb05b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416811/normal_5feeb05bd780c.pdfIn PDF document text
    • http://jizakatum.pbworks.com/w/file/fetch/144635928/51781683258.pdfIn PDF document text
    • http://niluputevi.pbworks.com/w/file/fetch/144588714/words_to_describe_a_womans_personality.pdfIn PDF document text
    • http://kinuwibe.pbworks.com/w/file/fetch/144464277/how_do_you_kill_haderax_the_invincible.pdfIn PDF document text