PDF malware analysis — malicious · d71c0ced07c2ef3b

MALICIOUS

PDF

71.6 KB Created: 2021-02-10 01:18:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22

MD5: 5d73e784750febd7ec452a717394a00f SHA-1: 76df5e820779526ece4c23814a64460706a21e37 SHA-256: d71c0ced07c2ef3b9932d18a816d5cb7e7d34ff1315c901d82f5c8f28f962ca9

184 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of external links, many hosted on disposable domains like weebly.com, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The presence of external URIs and a link farm heuristic points to an attempt to lure users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.8841

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://bologen.ru/aws?utm_term=berlin+conference+summary+pdf PDF link annotation
- https://zoxetojasag.weebly.com/uploads/1/3/1/4/131437223/361764.pdfIn PDF document text
- https://vujezogovi.weebly.com/uploads/1/3/5/3/135348950/rabuvenuke-rotikenev-tisamuroko.pdfIn PDF document text
- https://lazumuron.weebly.com/uploads/1/3/4/8/134863931/905aa610d41d3.pdfIn PDF document text
- https://tifimiwarefimi.weebly.com/uploads/1/3/4/8/134895051/7467947.pdfIn PDF document text
- https://ridimejaxokixis.weebly.com/uploads/1/3/5/3/135340331/pukufebof.pdfIn PDF document text
- https://sasofisapen.weebly.com/uploads/1/3/4/5/134590640/71310f29bd.pdfIn PDF document text
- https://nezuvaju.weebly.com/uploads/1/3/0/9/130969963/8668957.pdfIn PDF document text
- http://tixshopclub.fun/the_art_of_war_summary_and_analysisg7t6x.pdfIn PDF document text
- https://bifotuvimutojuz.weebly.com/uploads/1/3/0/9/130969437/7489b1cf.pdfIn PDF document text
- http://begdas.fun/tidiwonefikofopltf85.pdfIn PDF document text
- http://sovetnik53.ru/599913586899mbgv.pdfIn PDF document text
- http://1freedom.space/7th_grade_genetics_test9jldn.pdfIn PDF document text
- http://iuts.space/easy_classical_piano_music_for_beginnerszll1r.pdfIn PDF document text
- https://dapazigozasonim.weebly.com/uploads/1/3/4/4/134466252/fefomax.pdfIn PDF document text
- https://s3.amazonaws.com/bokelur/peter_benchley_s_amazon_free.pdfIn PDF document text
- https://s3.amazonaws.com/gaxuremewuger/pirukapijopesawu.pdfIn PDF document text
- https://s3.amazonaws.com/minegikukovel/bitsat_online_mock_test_free.pdfIn PDF document text

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