PDF malware analysis — malicious · 892ad835ed7430a4

MALICIOUS

PDF

65.5 KB Created: 2021-05-18 21:37:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 425d675ad4dbebb35ce1e4c1009e3333 SHA-1: a22abc0fa8ea52678e75d1e7ec267b4f6a12f168 SHA-256: 892ad835ed7430a49cbe22ceceb22868334298468ef94555a3c9e16de000e3a2

184 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of links to disposable domains, masquerading as information about microwave ovens. This is a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or a trojan.

Machine Learning

Nyx PDF Classifier malicious score 0.9956

Heuristics 5

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.
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://mezovuduw.ru/strik?utm_term=how+to+use+a+convection+oven+microwave
- https://gafewifem.weebly.com/uploads/1/3/1/3/131379815/3a9746ff.pdf
- http://kixesisero.22web.org/kagunufuwix.pdf
- https://marizezibafive.weebly.com/uploads/1/3/4/8/134865590/743f8664.pdf
- https://cdn-cms.f-static.net/uploads/4404524/normal_5fe8062eadf5c.pdf
- https://kizevopizimi.weebly.com/uploads/1/3/5/3/135351298/670b8df.pdf
- https://pikopivani.weebly.com/uploads/1/3/4/5/134510180/rudit.pdf
- http://rotarovew.22web.org/the_vegetarian_butcher_unilever_brasil.pdf
- https://cdn-cms.f-static.net/uploads/4480393/normal_5fd676a9a465d.pdf
- https://cdn-cms.f-static.net/uploads/4456989/normal_5fdac92d61b29.pdf
- http://tisimewifexumi.iblogger.org/gobilufugudafazekerinal.pdf
- http://ramubananene.iblogger.org/asterix_download_portugues.pdf
- https://rawoxozuk.weebly.com/uploads/1/3/2/6/132695352/2991984.pdf
- https://rakatifuz.weebly.com/uploads/1/3/5/9/135964199/8101848.pdf
- https://zafolixoniwalo.weebly.com/uploads/1/3/5/9/135958226/jilasiwased_dudinaremozepin_damokerozit.pdf
- https://kirorasonosa.weebly.com/uploads/1/3/4/7/134743937/1b30e0fd.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://bomowufawifebi.rf.gd/18115602656.pdf
- http://javasuk.epizy.com/chile_league_table_stats_form.pdf
- http://woxebolinos.rf.gd/mobowamekusofavajinom.pdf
- http://jibulizexamunu.rf.gd/c_est_quoi_l_agronomie.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ef43.bin` `e5c6c5337e2cb6d2a45fdc41437585329d3ddc848c2b8959270187cbf4327acb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF43	4908 bytes

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