PDF malware analysis — malicious · 5c7f08f6467a40dc

MALICIOUS

PDF

41.7 KB Created: 2020-08-30 06:57:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bd33f66cc28d84f35d48591e06f68b89 SHA-1: 2a78acccfbd74d1ae5b8f0f60f0bede4e8f16853 SHA-256: 5c7f08f6467a40dc6194ef6bc5d5dc7af79f917bf0d3228f276f77a5f2d810bb

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links, 'https://ttraff.cc/wix?keyword=zula+e+pin+hilesi+2018', is identified as a malicious redirector. The document's content and structure suggest it is part of a link farm designed to drive traffic to malicious sites, likely for phishing or malware distribution.

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=zula+e+pin+hilesi+2018
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/5537/3720/files/77174657564.pdf
- https://cdn.shopify.com/s/files/1/0431/6626/9597/files/risevu.pdf
- https://cdn.shopify.com/s/files/1/0435/7967/0689/files/rozavatamu.pdf
- https://cdn.shopify.com/s/files/1/0446/1517/2259/files/sewa_self_appraisal_form.pdf
- https://cdn.shopify.com/s/files/1/0431/2373/6725/files/1235131654.pdf
- https://cdn.shopify.com/s/files/1/0433/6268/0984/files/wozipalegidupisub.pdf
- https://cdn.shopify.com/s/files/1/0431/6574/5309/files/91059396409.pdf
- https://cdn.shopify.com/s/files/1/0432/5575/9011/files/76498966872.pdf
- https://cdn.shopify.com/s/files/1/0429/1713/4502/files/viveve.pdf
- https://cdn.shopify.com/s/files/1/0429/3538/6275/files/d_d_arcane_archer.pdf
- https://cdn.shopify.com/s/files/1/0435/0309/1872/files/daddy_sylvia_plath_analysis.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_off0000628b.bin` `66f0370f88759ea68fa8d2ac1db6b6d1da7e9394fb8b00ab0bfca39ec3bffc41`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x628B	5288 bytes
`font_01_sfnt_off00007482.bin` `0943e304f4ffff0d7544e8a741d052911ff64a01f95005e4c8f5487e2989e156`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7482	11736 bytes

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