PDF malware analysis — malicious · 53858871496ea4d2

MALICIOUS

PDF

35.9 KB Created: 2020-09-03 03:46:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e658a50da8dcee3422d625d289b995e5 SHA-1: 433f0075aacfd5bdafe6c45216f70c6bfe2a18f4 SHA-256: 53858871496ea4d22daa946abe5388a8b488cd7582eb39e670760e7ce8add628

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves luring the user to click on the malicious redirector URL, which likely leads to further malicious content or exploitation.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://ttraff.link/wix?keyword=bawra+mann+dekhne+song+free
- https://cdn.shopify.com/s/files/1/0432/3459/0888/files/nejutuwozalajugowukarif.pdf
- https://cdn.shopify.com/s/files/1/0433/0926/9156/files/nonufuwazojojeripeb.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wurawosupamajo.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/traitement_thermique_des_alliages_d_aluminium.pdf
- https://cdn.shopify.com/s/files/1/0430/2965/9797/files/37599157202.pdf
- https://cdn.shopify.com/s/files/1/0430/0609/9605/files/mozabokojubuko.pdf
- https://cdn.shopify.com/s/files/1/0430/8982/1845/files/nefefojuzepama.pdf
- https://cdn.shopify.com/s/files/1/0431/8098/2438/files/schengen_visa_application_form_italy.pdf
- https://cdn.shopify.com/s/files/1/0433/0058/5636/files/kesemoz.pdf
- https://cdn.shopify.com/s/files/1/0432/8452/9310/files/varesuzuje.pdf
- https://static.usrfiles.com/ugd/02ccf7_0bd058ad3ace4ee19ae74261b2ea46fc.pdf
- https://static.usrfiles.com/ugd/79e5df_d0b7be98a44142c6a16019e4794286f5.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004983.bin` `51a59d267045abe10bd099cce10c567b205d9c29e0914d6a2a40cab785e08c21`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4983	5496 bytes
`font_01_sfnt_off00005c22.bin` `55160afc9761b7841f93120f44d152e7cbc984965b8b42464375113205a68a37`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C22	12368 bytes

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