PDF malware analysis — malicious · 7357b07c2e4488ac

MALICIOUS

PDF

52.6 KB Created: 2021-03-22 13:33:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25

MD5: ccd384c5dde8813c360195177614d877 SHA-1: aa9efff5be2f4830304ae0349ea7d997687aa0e6 SHA-256: 7357b07c2e4488ac6b227ef432ff85ec5f971ed02eade0b7420416de3c0f0b65

184 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing campaign. The ClamAV detection and ML classifier indicate malicious intent, likely to redirect users to malicious sites or download further payloads. No scripts were extracted, but the PDF structure itself is indicative of a malicious lure.

Machine Learning

Nyx PDF Classifier malicious score 0.7186

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://soxebez.ru/aws?utm_term=hec+ras+tutorial+ppt PDF link annotation
- https://cdn.sqhk.co/vawapisoxe/iiR1Yjc/57009563582.pdfIn PDF document text
- https://siravexadobema.weebly.com/uploads/1/3/4/3/134320718/libusej.pdfIn PDF document text
- http://xijonofupawulo.mypressonline.com/what_is_amplitude_shift_keying.pdfIn PDF document text
- http://pe50off.pro/mr_sandman_the_chordettes_freei4w1q.pdfIn PDF document text
- https://xedaliwim.weebly.com/uploads/1/3/1/4/131454603/1738578.pdfIn PDF document text
- https://cdn.sqhk.co/surikuzezun/hghfhfC/91146188277.pdfIn PDF document text
- https://remoruputudedux.weebly.com/uploads/1/3/4/0/134017090/kugozuzaj_sebuvu.pdfIn PDF document text
- http://clientesdkb.com/vudibebiwukusopcr3al.pdfIn PDF document text
- https://bodokevusigow.weebly.com/uploads/1/3/2/7/132740435/zobazalovelaba-zofekugewaworu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417221/normal_603854ae7481f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467027/normal_603716c435a19.pdfIn PDF document text
- https://08c3cc13-1ce0-4add-927e-a3aed263473e.filesusr.com/ugd/ccf397_d8bdc27fd8e24cd1a932771c1501df1a.pdf?index=trueIn PDF document text
- https://e33362eb-94ba-4427-a888-6f4863169a18.filesusr.com/ugd/36ce96_6117c0841ca14de88e2f5694b3e8c49c.pdf?index=trueIn PDF document text
- http://wewamamewiler.atwebpages.com/40677615933.pdfIn PDF document text
- https://0a37a3d5-a0bf-4e77-8ff5-6127fd08aefa.filesusr.com/ugd/6046c9_1d375311d48e4fd3a5fd669af83fe47d.pdf?index=trueIn PDF document text
- https://39ad70c8-6a03-4de2-a89b-b0209cba5754.filesusr.com/ugd/d2759c_3833475886fc4255b935144879871332.pdf?index=trueIn PDF document text

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