PDF malware analysis — malicious · 3767cca38b1192cd

MALICIOUS

PDF

51.9 KB Created: 2021-02-04 09:47:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23

MD5: c6413783cee85fbc32d7d0e78423cd2a SHA-1: 9ce37ebd59416d3022a824424c6797839df237b3 SHA-256: 3767cca38b1192cd21eab19337a53de253f4dbf94f9cee5aca033fcf3d98c7a0

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.8760

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 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.
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://jacksth.ru/wb?keyword=bipolar%20sunshine%20daydreamer PDF link annotation
- https://fejilezujew.weebly.com/uploads/1/3/4/3/134340931/repigu-tifexebatu-felatuvedozarav.pdfIn PDF document text
- https://vapasunodisina.weebly.com/uploads/1/3/0/8/130873802/264462.pdfIn PDF document text
- https://walagewujiw.weebly.com/uploads/1/3/0/9/130968979/reforud.pdfIn PDF document text
- https://nolopatemima.weebly.com/uploads/1/3/4/5/134583633/desunulogipewazafev.pdfIn PDF document text
- https://vazaratel.weebly.com/uploads/1/3/4/0/134017227/zanogetadugobi-fepot-latesibogi.pdfIn PDF document text
- https://labajamipudoxa.weebly.com/uploads/1/3/5/3/135399896/9a7b11ab2.pdfIn PDF document text
- https://binazinir.weebly.com/uploads/1/3/4/1/134108718/bubinutosazofowinuno.pdfIn PDF document text
- https://dirivabekere.weebly.com/uploads/1/3/3/9/133999762/matubegex.pdfIn PDF document text
- https://tudogevu.weebly.com/uploads/1/3/2/7/132741144/4461645.pdfIn PDF document text
- https://tubidexoz.weebly.com/uploads/1/3/5/9/135994678/98e6d24e.pdfIn PDF document text
- https://suxegetolikas.weebly.com/uploads/1/3/4/0/134097713/3038288.pdfIn PDF document text
- https://waruzakelejabu.weebly.com/uploads/1/3/4/6/134600446/tunofuwumunemelamu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/fedojigudaj/anti_inflammatory_diet_list.pdfIn PDF document text
- https://s3.amazonaws.com/jufowokedunod/boulevard_of_broken_dreams_guitar_tabs.pdfIn PDF document text
- https://s3.amazonaws.com/fomudebipefasu/luvonozotilopituneked.pdfIn PDF document text
- https://s3.amazonaws.com/bikikanafopavu/dugipamekuf.pdfIn PDF document text
- https://s3.amazonaws.com/kopisigapub/jexumuni.pdfIn PDF document text
- https://s3.amazonaws.com/ponivotigegepub/73228970322.pdfIn PDF document text
- https://s3.amazonaws.com/wewiro/72630848442.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000b724.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB724	5348 bytes
SHA-256: `8fc14c8607b8a9c84885c4115d8cc7ec79258a6975dfb8a13705eba19318677a`

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