PDF malware analysis — malicious · e1eca6f0d5b0d9ea

MALICIOUS

PDF

140.8 KB Created: 2020-11-13 14:44:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 19a9962edcf93878aa3ec4d3487a9d59 SHA-1: 4e005c1e5c3b50bcd89c236984b7b4e3277d2d11 SHA-256: e1eca6f0d5b0d9eabf870da904d2fa67e1bc7123d5743319de1275c2a5dc8d03

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, many pointing to PDF files, suggesting a link farm or SEO manipulation tactic. The ClamAV detection and ML classifier indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious activity.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://trafffi.ru/123?utm_term=big+dan+teague+mtg
- https://vikumeniwexawud.weebly.com/uploads/1/3/0/9/130969440/d7dfa3bc38dcb.pdf
- https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/1452293.pdf
- https://melegejisud.weebly.com/uploads/1/3/1/3/131379421/3c48b.pdf
- https://sasepanubur.weebly.com/uploads/1/3/4/6/134600976/zigob.pdf
- https://cdn-cms.f-static.net/uploads/4377931/normal_5f8c016520d65.pdf
- https://cdn-cms.f-static.net/uploads/4412592/normal_5f9709efb8f7d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/wavunot/losaramemob.pdf
- https://s3.amazonaws.com/vufupu/74685598652.pdf
- https://s3.amazonaws.com/zemigiduwagafu/jobezexoripukeg.pdf
- https://s3.amazonaws.com/gupuso/wewires.pdf
- https://s3.amazonaws.com/tetazino/pdf_converter_to_autocad_free_download_full_version.pdf
- https://s3.amazonaws.com/gajejasa/adobe_zii_windows_2020.pdf
- https://s3.amazonaws.com/jezaxojipevu/45030747685.pdf
- https://uploads.strikinglycdn.com/files/7c357e56-3bcc-488d-99ac-0953ec34ee0e/exemple_de_morale_de_fable.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0001efad.bin` `18e2dbf00181db61eb3c3ed409c9c4ce757093696dcc0322ed3aa62ecb35b92c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1EFAD	4888 bytes
`font_01_sfnt_off00020045.bin` `2f026fd232e8c68156b71f4657e1be095a73204df80127ee6c52a01ac5d2892c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x20045	11508 bytes

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