PDF malware analysis — malicious · 7281568b6810c898

MALICIOUS

PDF

52.9 KB Created: 2020-08-30 11:54:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 41adaa6479bea79ef0360018d3a1354f SHA-1: 9ce35f8493cc2deebc70e4a0acf8a26e84a92c9c SHA-256: 7281568b6810c8981547b7b083863b17d8541a83f42b2b48ec763b13c6c9bfd9

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL https://ttraff.com/wix?keyword=complete+french+grammar+pdf, which is likely intended to deceive the user into believing it is related to grammar resources. The PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger link farm, further indicating malicious intent.

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.com/wix?keyword=complete+french+grammar+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/cd79e3_99776dba7b294823a729bdaa2482b6ad.pdf
- https://static.usrfiles.com/ugd/a18aa6_49b5bf60a3ea4f578cf66b0b62c97409.pdf
- https://static.usrfiles.com/ugd/6116da_a42101d921524b62934ce2478c0e50e1.pdf
- https://static.usrfiles.com/ugd/b8c837_49773783d9b1483f950c79338b3366ba.pdf
- https://static.usrfiles.com/ugd/b8c837_4599b1e1f34d4d9885625c493d52c647.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lipowu.pdf
- https://cdn.shopify.com/s/files/1/0435/7442/7806/files/91323637371.pdf
- https://cdn.shopify.com/s/files/1/0433/9430/2117/files/69049899394.pdf
- https://static.usrfiles.com/ugd/b8c837_321e63a406674f84b0232b4cc4073adf.pdf
- https://static.usrfiles.com/ugd/430cb2_ed8b8d438e6944249dec16317cc072c0.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_off00009270.bin` `3172eb16dbb0e48361a7b214fc95dcfc575ef021d4326735dd4282f5501c79b9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9270	5296 bytes
`font_01_sfnt_off0000a443.bin` `bd701bd13fd0932b9b2a6161a6f06834f02fd9c1c79906b6c4d4391c753e72b8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA443	10240 bytes

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