PDF malware analysis — malicious · 99ba2bda109e8bf9

MALICIOUS

PDF

63.2 KB Created: 2021-05-12 15:08:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20

MD5: 150112e738cc41b08338806852323097 SHA-1: 6efe60139fbcd1a051e3eb6093d7af21a796473b SHA-256: 99ba2bda109e8bf994808db733e17c7dc9ce43e065078adad98f2c51606b8f4e

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, indicating a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were explicitly extracted, the PDF structure and link farm suggest it's part of a phishing or malware distribution campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.7657

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://nivojekegup.weebly.com/uploads/1/3/5/3/135322075/81ef5d4fea2.pdf In PDF document text
- https://gofazawadatefit.weebly.com/uploads/1/3/5/3/135349405/moxoresegoxefefar.pdfIn PDF document text
- http://idealslimitaly.site/59839720321ds89h.pdfIn PDF document text
- http://pixell.store/2017_physicians_desk_reference_71st_edition7gzjr.pdfIn PDF document text
- https://cdn.sqhk.co/wolanojijen/hl9Qdxn/dreamer_designs_reviews.pdfIn PDF document text
- http://zeropium.com/tudumijedaq5dsx.pdfIn PDF document text
- https://cdn.sqhk.co/dasadogiso/UjdYIGr/super_coloring_ben_ten.pdfIn PDF document text
- http://zarabatyivat.ru/girlfriends_guide_to_divorce_season_6_netflixhzpvz.pdfIn PDF document text
- https://cdn.sqhk.co/nuzozuni/dNUjanw/tunesholic_mod_apk_2._1._1_download.pdfIn PDF document text
- https://cdn.sqhk.co/kujotukil/iicgeja/83324969095.pdfIn PDF document text
- https://cdn.sqhk.co/mojobugoge/En8zcjh/tijejamur.pdfIn PDF document text
- https://cdn.sqhk.co/sujoxeti/ifNjdVJ/rizipanivedodejeju.pdfIn PDF document text
- https://cdn.sqhk.co/xitilesuxiw/hd8cijd/gravity_runner_multiplayer_game.pdfIn PDF document text
- https://cdn.sqhk.co/wodelaganav/ic1jgNn/fuzaro.pdfIn PDF document text
- https://mivagori.weebly.com/uploads/1/3/5/3/135318233/vipagudulonomutu.pdfIn PDF document text
- http://feedproxy.google.com/~r/wb/ENAH/~3/dN4lCoxrs6M/wb?keyword=autosys%20jil%20tutorial%20pdfPDF link annotation
- https://s3.amazonaws.com/muwemivumazulax/juxawelejepigazupakenive.pdfIn PDF document text
- https://s3.amazonaws.com/wozowuledij/vampire_diaries_season_1_summary.pdfIn PDF document text

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