PDF malware analysis — malicious · 12cd812abcbc2f8a

MALICIOUS

PDF

101.6 KB Created: 2021-02-26 20:42:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24

MD5: 0ff3124f5d99eb754cdf1a664fcac896 SHA-1: a5d5c3ee78bce2e78d8f1d0df5efa23e6c9c9cf3 SHA-256: 12cd812abcbc2f8a6d1b865072013ca15b99e0a068b5b24df3efb2decec55d4c

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1055.012 Process Injection T1204.002 Malicious Link

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 0.9563

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
Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE

PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
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://baarspo.ru/aws?utm_term=sas+urban+survival+guide+pdf PDF link annotation
- http://securityofusersdevicesonline.site/zamogonawokuxeky3bwn.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386363/normal_5fd39cbf498f9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459034/normal_5fdbfa7548b5d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480581/normal_602f95b7a524a.pdfIn PDF document text
- http://logmeinnow.xyz/43700615211dh15k.pdfIn PDF document text
- https://wugedelujexot.weebly.com/uploads/1/3/1/4/131456191/zarez.pdfIn PDF document text
- http://imedo.ru/how_hard_is_it_to_learn_to_read_arabicwtcfu.pdfIn PDF document text
- http://front-glass.space/boys_brigade_uniformrvmc1.pdfIn PDF document text
- http://lazerepil.site/dagezetewodipixetolevurey6c78.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4472788/normal_5fee220e67515.pdfIn PDF document text
- https://lebabipiw.weebly.com/uploads/1/3/0/9/130968925/felegepoxibepuv.pdfIn PDF document text
- http://copyrightshelpcenter.com/xogepefelb475t.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463262/normal_6030a87fbb361.pdfIn PDF document text
- https://pigiwikabulate.weebly.com/uploads/1/3/1/8/131856715/fb7987.pdfIn PDF document text
- https://kesegupopu.weebly.com/uploads/1/3/4/1/134131766/7692031.pdfIn PDF document text
- http://hargotel.xyz/85970113162k88ko.pdfIn PDF document text
- http://nanolenka.xyz/warriors_don27_t_cry_full_bookplpgm.pdfIn PDF document text
- http://tezafafowajij.epizy.com/xalosetupen.pdfIn PDF document text

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