PDF malware analysis — malicious · 8182c46505311c6c

MALICIOUS

PDF

38.5 KB Created: 2020-08-29 13:06:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: f1bae8e0bcedf93bffce794959d991be SHA-1: 324d1c3054f7f878b8c1ed202f7a8d4b6ef4617d SHA-256: 8182c46505311c6cc181d95f797f9ba27621e98a0749a0bf0d3571712769e0db

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a link to a known malicious redirector, ttraff.club, which is likely used to obscure the final destination of the malicious content. The document body, though heavily obfuscated, contains the same malicious URL. The presence of numerous benign Shopify links suggests an attempt to blend in with legitimate content, a common tactic in phishing campaigns.

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.club/wix?keyword=lotfp+summon+spell
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/5316/1367/files/aliquot_method_of_weighing_and_measuring.pdf
- https://cdn.shopify.com/s/files/1/0427/4615/1078/files/aqa_mera_sohna_free.pdf
- https://cdn.shopify.com/s/files/1/0430/5597/2506/files/sub_zero_combos.pdf
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/serviceability_and_durability_of_concrete_download.pdf
- https://cdn.shopify.com/s/files/1/0433/7047/9766/files/xiwuvarifobisi.pdf
- https://cdn.shopify.com/s/files/1/0433/0071/6694/files/16935952428.pdf
- https://cdn.shopify.com/s/files/1/0432/2597/2904/files/62090688135.pdf
- https://cdn.shopify.com/s/files/1/0437/3495/8229/files/91974507965.pdf
- https://cdn.shopify.com/s/files/1/0434/6170/5890/files/4157472767.pdf
- https://static.usrfiles.com/ugd/b8c837_85e1aaeea572428bad9bc86ed7fca052.pdf
- https://static.usrfiles.com/ugd/b8c837_59240b87a2df4a82886d87d09c4257d1.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_off00005b42.bin` `961ceb030254ee68779ff6d7856fd8f6853bc047fba0c929581ed1349e397d96`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B42	4680 bytes
`font_01_sfnt_off00006b24.bin` `241559e342ca7932aaee8e4060bb3ebabd89ba779a00d12f43d1e9919e213c9d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B24	10108 bytes

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