PDF malware analysis — malicious · e93a4baf9d3f46f3

MALICIOUS

PDF

64.0 KB Created: 2021-04-15 09:25:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24

MD5: 2deb2e8ee8cf7d324ade9628fa6c8e50 SHA-1: 7867ebf5fc32cfc58daf1e5c39e17a74e5362d41 SHA-256: e93a4baf9d3f46f33e8b70deabfe416f41e125f09b6c841243892d4027d1c05a

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a link farm on disposable hosting. The embedded URLs, such as 'https://pelibifir.ru/strik?utm_term=dewalt+drill+bit+set+toolstation', suggest a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and numerous external links point towards an attempt to redirect the user to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.7272

Heuristics 4

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 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://pelibifir.ru/strik?utm_term=dewalt+drill+bit+set+toolstation PDF link annotation
- https://cdn.sqhk.co/wituwuxevef/ihZptOd/find_my_phone_apple_icloud.pdfIn PDF document text
- http://roxebil.22web.org/dufotarete.pdfIn PDF document text
- http://xifufexiruma.iblogger.org/23952440192.pdfIn PDF document text
- http://ponipekerewex.22web.org/59536273216.pdfIn PDF document text
- http://gratoraama.space/jegagec2qck.pdfIn PDF document text
- http://jejidizifobimir.iblogger.org/dalolotepagatiwegozipes.pdfIn PDF document text
- http://nefetenebubuwid.iblogger.org/41747584448.pdfIn PDF document text
- https://cdn.sqhk.co/kuzetuzame/jeqSia9/ninja_village_naruto_android_download.pdfIn PDF document text
- https://cdn.sqhk.co/xolovagi/bpifGhg/dupifefebopofejejugixo.pdfIn PDF document text
- http://witefuxav.22web.org/meludodejupivemup.pdfIn PDF document text
- https://cdn.sqhk.co/dajuzafum/haBicii/jesexurejozeporibebesaj.pdfIn PDF document text
- http://filuniguwol.22web.org/27475427142.pdfIn PDF document text
- http://gidpopiteru.com/5526207844076f2p.pdfIn PDF document text
- http://sexililelaweru.rf.gd/bumudufozeze.pdfIn PDF document text
- https://c30b87d5-e38e-4f4c-8f61-e356d9eaafe8.filesusr.com/ugd/347120_b91aa414158543b283baefd78ada7654.pdf?index=trueIn PDF document text
- http://gotuziput.epizy.com/binomial_distribution_practice_problems.pdfIn PDF document text
- http://danidarexixuw.epizy.com/mitsubishi_cutting_tools_catalogue.pdfIn PDF document text
- https://fccd5518-64e1-462d-9dbe-8d8d8a19ca7a.filesusr.com/ugd/eb005d_6ca4eb97f70048a5a0f25bd743efbadd.pdf?index=trueIn PDF document text
- http://xezaximeru.epizy.com/asnt_level_iii_study_guide_ultrasonic_testing_method.pdfIn PDF document text
- https://435a888a-8f80-410d-aa77-77edd6e4491d.filesusr.com/ugd/51fec0_9cd17b6afdb844fe844b6bacdd088ad9.pdf?index=trueIn PDF document text

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