PDF malware analysis — malicious · 084213b01bbf8e14

MALICIOUS

PDF

66.4 KB Created: 2020-08-31 00:25:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e8eb6b5909b75af377fa5a18607055dd SHA-1: 28cef421583e67ad306c0d19585663a1105cc558 SHA-256: 084213b01bbf8e148d1cdf72071bf4704d6a480643f9b479c87ec0d4a4ed6496

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains embedded links that redirect to malicious infrastructure, specifically the URL https://ttraff.com/wix?keyword=avatar%253A+the+last+airbender+season+2+episode+19. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to a malicious site. The presence of numerous PDF links, many pointing to benign Shopify URLs, indicates a potential SEO link farm tactic to obscure the malicious redirector.

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=avatar%253A+the+last+airbender+season+2+episode+19
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/0403/5221/files/vigawevovino.pdf
- https://cdn.shopify.com/s/files/1/0434/1540/4711/files/33661225772.pdf
- https://cdn.shopify.com/s/files/1/0437/0219/0235/files/schneider_electric_product_catalog.pdf
- https://static.usrfiles.com/ugd/238140_689b1f2325164b57a705b751a241adb1.pdf
- https://static.usrfiles.com/ugd/ce0e6d_2db32ebf32b54bfa9981f56a006bdc2f.pdf
- https://static.usrfiles.com/ugd/a44510_21968f0b15ae473b9ff59bd41c1c3a41.pdf
- https://static.usrfiles.com/ugd/b8c837_f23478dd962a49229d888a6a32ad5557.pdf
- https://static.usrfiles.com/ugd/837d34_079ce783a6f74c78b181a6be231b9369.pdf
- https://static.usrfiles.com/ugd/99afdc_c3624e09650d419e99486921596cfb1e.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vexib.pdf
- https://cdn.shopify.com/s/files/1/0432/3095/3627/files/61353261299.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_off0000c60f.bin` `d576e9e1c4c8229b06cc1dc25ac7196747fc1225b29567c1028323a2b9bbf97d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC60F	5624 bytes
`font_01_sfnt_off0000d925.bin` `269f49d0105bb0028331d2fd0a92698320d495031e223079a249cad90265ed42`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD925	10516 bytes

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