PDF malware analysis — malicious · 9d6bfc6ef9733da0

MALICIOUS

PDF

84.6 KB Created: 2021-05-22 00:59:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23

MD5: f0e48768180e300958867134bc793244 SHA-1: 70fed6e39f47c3932722249d3e2ca6d9676bd8ac SHA-256: 9d6bfc6ef9733da048e7c0314972183e3e2285d46172746b5378ae8344e97ab3

156 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 0.9955

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.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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/strik?utm_term=communication+in+conflict+resolution+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4456728/normal_60403f947e0a1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480899/normal_60197bdd55b0d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381751/normal_602207c542c16.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4448332/normal_5ffcf25ba3c71.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380699/normal_6026c0cabe5c6.pdfIn PDF document text
- https://gofadoden.weebly.com/uploads/1/3/4/6/134615513/3918484.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479688/normal_6044dcff827bb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450511/normal_603f5f994266b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386073/normal_604035e4b8ba2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449630/normal_603ebad6d7d8e.pdfIn PDF document text
- https://toxutumopomepe.weebly.com/uploads/1/3/5/3/135327812/ruvodesizubuz.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4474449/normal_5ffa6ad123d84.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4445573/normal_6003dfe36786c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4493221/normal_5ff81f691b578.pdfIn PDF document text
- https://dudosixe.weebly.com/uploads/1/3/4/3/134323580/9013073.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501975/normal_6052a91e06f59.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393020/normal_5fd7689c5831b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/2b91ec88-cb7c-49a5-a990-39c2679eea7c/britax_marathon_car_seat_cleaning.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/91eb4f5f-50e0-4417-b1f9-d7455d6ce885/sopojubiwel.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5a711a67-2099-4be4-a4eb-d8b6d5a352a2/pokemon_blaze_black_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d6635d13-67d0-44be-a0c3-3d0d28843f5a/8027346621.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0f27a6ee-81ae-4be5-83ce-d0383382f530/dipofuzopajososedugunu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ff151603-f8b7-4023-ac98-c9ce0a21ae44/smart_calling_watch.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5f4a9b58-087f-4960-bf51-7a960f3550a9/fipud.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d6ae05d6-d3c2-4cfb-9afc-54289685756c/exercices_sens_des_prfixes_et_suffixes_cm2.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/35c41eda-15a5-4309-b633-596a6d12ceab/roxeziferir.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0001018f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1018F	5208 bytes
SHA-256: `1d3b3642f66bc951a5eaf4a28ecde612b0ae383bc1e514507c4703c66f882568`
`font_01_sfnt_off00011329.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11329	10420 bytes
SHA-256: `8b2b124bc234544d4f9b2c6d05750be7c068b9f34f8256c7693b8bea58e7440c`
`font_02_sfnt_off0001367e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1367E	4324 bytes
SHA-256: `7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71`

Open this report in the interactive analyzer, or submit your own file for analysis.