PDF malware analysis — malicious · 71100fbcc86624bb

MALICIOUS

PDF

37.9 KB Created: 2020-09-01 08:52:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 81afe7ee4e778481ad116ff96eb226eb SHA-1: 745e428e4b7e3c68b71e6bca3a85a05cda7a78f7 SHA-256: 71100fbcc86624bbc051779bac22059225fc9eb41e0b4dc3e1949b33cf43bbc1

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a large number of embedded links, masquerading as Drupal theme templates, which ultimately redirect to a malicious URL. The ML classifier strongly indicates malicious intent, and the presence of a redirector link confirms the attempt to lead the user to harmful infrastructure. No scripts were extracted, but the document body itself contains the malicious URL.

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.cc/wix?keyword=drupal+7+theme+templates+directory
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/d55797_c1d4656995464a748622fb56de9f92d9.pdf
- https://static.usrfiles.com/ugd/16a96a_dc2130e5036242cab014cbac6aa63cf1.pdf
- https://static.usrfiles.com/ugd/1fbf8b_fef67ab5e9814bc0b69db93623fa3337.pdf
- https://static.usrfiles.com/ugd/3dd68e_1e947e8576734c1a9a4ba1b060319bd3.pdf
- https://static.usrfiles.com/ugd/9cb927_13d557751cb54a3998445e4be64a7df1.pdf
- https://cdn.shopify.com/s/files/1/0432/9707/9460/files/zalefuruderefewawa.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lobusine.pdf
- https://cdn.shopify.com/s/files/1/0430/3847/4397/files/74209302959.pdf
- https://cdn.shopify.com/s/files/1/0467/8002/2937/files/tulurivakamuxomejejake.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/difetilijixe.pdf
- https://cdn.shopify.com/s/files/1/0431/1583/9645/files/behaviorism_meaning.pdf
- https://cdn.shopify.com/s/files/1/0433/2044/3045/files/mabunorimakexarabofepulef.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_off00004efa.bin` `b603e769d29ec44409c10406c650a912c303fb9a0dcb43ea62e09924a1960947`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4EFA	5492 bytes
`font_01_sfnt_off0000618e.bin` `71098746655a68dd1d96c9d6b4e898579ac7b66f4cbb720dba454fdebf33eded`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x618E	13008 bytes

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