PDF malware analysis — malicious · d5b7954ed2e692c5

MALICIOUS

PDF

65.5 KB Created: 2021-04-13 09:12:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e9e850f2dbee12e48cb69b58e3bdee43 SHA-1: a3bb2033a18bd21128390c103b1c800e5704f700 SHA-256: d5b7954ed2e692c57457b7431f58784216598e3e9f658ff116a2caea8094292e

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many of which point to domains commonly associated with SEO spam and phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs suggest the document is designed to redirect users to potentially harmful websites, likely for credential harvesting or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9903

Heuristics 4

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
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://zajinet.ru/strik?utm_term=ford+borg+warner+4+speed+transmission+identification
- http://xirapanagix.getenjoyment.net/annexure_d_for_passport.pdf
- https://static.s123-cdn-static.com/uploads/4493545/normal_5ffe6f6f84ed3.pdf
- http://tegisuro.22web.org/conductive_materials.pdf
- http://gugolufixa.mywebcommunity.org/eight_days_a_week_tab.pdf
- https://miremawa.weebly.com/uploads/1/3/4/6/134631892/runobinidugowuzagib.pdf
- http://kilidivofafo.iblogger.org/zimiboruburerogutudujo.pdf
- https://veralekixa.weebly.com/uploads/1/3/1/0/131069874/zubezijisozow-biziwobumoxuse-vozuxozerukole-funofajogavibu.pdf
- https://vamawawu.weebly.com/uploads/1/3/0/8/130874524/1084170feb8.pdf
- https://cdn-cms.f-static.net/uploads/4414867/normal_605d59cde5b0a.pdf
- http://vegoletox.medianewsonline.com/zezuruperutoko.pdf
- https://cdn-cms.f-static.net/uploads/4410962/normal_6038ba8447536.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/60c72c2e-cedd-4ec2-9479-dc365acfc094/xanathars_guide_to_everything_racial_feats.pdf
- https://uploads.strikinglycdn.com/files/b6bd22d4-4da8-48ae-a575-ad5eb76632e0/kabuwubakak.pdf
- http://simipibenafar.epizy.com/national_anthem_of_pakistan_with_lyrics.pdf
- https://uploads.strikinglycdn.com/files/61e64591-35b3-4ee2-925f-ec82d8c7ded5/mississippi_drivers_permit_test_2020.pdf
- http://pakefuvusenoz.rf.gd/titulo_de_credito_oq.pdf
- http://widifusi.myartsonline.com/gatabodumiboletaw.pdf
- https://uploads.strikinglycdn.com/files/5b39f6bc-cdb8-436e-8c6f-753236161a1e/70551838879.pdf
- https://uploads.strikinglycdn.com/files/96494bbb-0a60-4f56-a909-4b6f798bcabc/15972628477.pdf
- https://uploads.strikinglycdn.com/files/4601b14b-e383-4197-aeb8-8cbfd4e0f439/ratafabudufifabepewep.pdf
- https://uploads.strikinglycdn.com/files/65fb19c3-b84b-4c00-b12a-198ab66f87af/dudubixo.pdf
- https://uploads.strikinglycdn.com/files/8a049625-bdd1-4c6e-86d8-6b406e01b925/manirezewizadelo.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f5e0.bin` `f8a4a43e62bd6f4043b55b344929f66d73a8b988365d7c5f79301868cf2d3bf8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF5E0	5720 bytes

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