PDF malware analysis — malicious · 09b6785f1795357e

MALICIOUS

PDF

42.2 KB Created: 2020-08-30 23:29:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5bdbf5686a39a21dd79d1f1935f65750 SHA-1: 52a241ebf69fe9be44782e7b35fcdb2f24a3c97f SHA-256: 09b6785f1795357eceaa2b819469c0091590c0e2a4ad57a994f96fc4dde8ebbe

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1190 Exploit Public-Facing Application

The PDF file contains a significant number of embedded URLs, forming a link farm. One of these URLs, 'https://ttraff.ru/wix?keyword=sedona+method+chart+of+emotions', is flagged as a malicious redirector. The presence of numerous external links suggests an attempt to manipulate search engine results or distribute further malicious content, aligning with tactics used in phishing or SEO spam 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.ru/wix?keyword=sedona+method+chart+of+emotions
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b4a829_6e733bd3ab764dadac8e865834c66515.pdf
- https://static.usrfiles.com/ugd/b8c837_6f6c7368f94247e494fa07c04dd2c076.pdf
- https://static.usrfiles.com/ugd/21e6f2_b03dd9a5907f412594eadc20f65a6cc1.pdf
- https://static.usrfiles.com/ugd/b8c837_982450f31caa47e49c2610d71b46073b.pdf
- https://static.usrfiles.com/ugd/eaf48f_5d0acf37087248a595248a3e7aa0d348.pdf
- https://cdn.shopify.com/s/files/1/0431/9546/5892/files/karuvifamafew.pdf
- https://cdn.shopify.com/s/files/1/0431/5571/8298/files/gutalesujipetoloxup.pdf
- https://cdn.shopify.com/s/files/1/0429/7749/3146/files/fiwizogijuga.pdf
- https://cdn.shopify.com/s/files/1/0427/5847/1846/files/muwoxe.pdf
- https://cdn.shopify.com/s/files/1/0428/7581/4047/files/update_android_samsung_y_duos.pdf
- https://cdn.shopify.com/s/files/1/0447/9719/8487/files/assemblies_of_god_four_cardinal_doctrines.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_off0000630c.bin` `239300bf406ecf9caf627ce2a3ec4fc33193dc5e11a3600ce07d5d008cf6c32c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x630C	5332 bytes
`font_01_sfnt_off000074f4.bin` `7dd024820771fccf20cc24a9ec93dd70516a1b81ac41b4a7964d1fad05ac0da7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74F4	12280 bytes

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