PDF malware analysis — malicious · 664798a7d7279ebd

MALICIOUS

PDF

37.7 KB Created: 2020-08-29 02:06:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3050361b192e1d8fa21a42bb176f26ce SHA-1: 6c913099f7076ca1dcfb0b5d0856596479146e64 SHA-256: 664798a7d7279ebdb22f4744c75b5fbfc29e5d91fda0fd2a69589c8e74f55a21

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.cc/wix?keyword=ishq+wala+love+mp3+download'. This suggests an attempt to direct users to malicious content, likely for phishing or malware distribution. The presence of many external PDF links, some benign and some potentially malicious, indicates a link farm strategy. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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=ishq+wala+love+mp3+download
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_e434b962fda841f8a0d9fdcce1494d7c.pdf
- https://static.usrfiles.com/ugd/b8c837_88cab1e966274f4aa27a3ebed96c5585.pdf
- https://static.usrfiles.com/ugd/b8c837_95984a5f735046ce9fcdf2916bf839b3.pdf
- https://static.usrfiles.com/ugd/b8c837_0564db30819642d980ce7fa014338bad.pdf
- https://cdn.shopify.com/s/files/1/0435/8710/9023/files/55185348934.pdf
- https://cdn.shopify.com/s/files/1/0433/3309/1480/files/xojuwabobuwap.pdf
- https://cdn.shopify.com/s/files/1/0436/9511/2347/files/catharine_mackinnon_only_words.pdf
- https://cdn.shopify.com/s/files/1/0432/7538/7043/files/music_albums_2018.pdf
- https://cdn.shopify.com/s/files/1/0432/8315/3056/files/lupugibivoro.pdf
- https://cdn.shopify.com/s/files/1/0432/0667/2546/files/27591649622.pdf
- https://cdn.shopify.com/s/files/1/0432/5100/7638/files/34105887404.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_off000049c7.bin` `f1da67b0f008b96ae889ea326cd618b1cade07a6d4ef7654502bef7a0fd191b7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x49C7	5480 bytes
`font_01_sfnt_off00005c65.bin` `a2fd6d3eb30161c9c228d050fa849ab7ecf961604d4809d524697c8a24a496e6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C65	14840 bytes

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