PDF malware analysis — malicious · 5d703400afc9a03d

MALICIOUS

PDF

65.2 KB Created: 2020-08-29 05:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e5d5dcda57c58525cb20ae909dc83b49 SHA-1: 3fc8f12ac86bad045a4cc2eb8904b4a6a06a718a SHA-256: 5d703400afc9a03d03d478174af8a4ea0d2e724ae7ea837bda4cd3bb548be2d1

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to external PDFs, forming a link farm. One of these links, https://ttraff.cc/wix?keyword=ark+blaze+targeting, is flagged as a known malicious redirector. This suggests the document is part of a campaign to drive traffic to malicious infrastructure, 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=ark+blaze+targeting
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_971f29d3ee174c45a3ab1ecd491cf847.pdf
- https://static.usrfiles.com/ugd/b8c837_3e2e55e826c147e89ea81c4fdd77ff3e.pdf
- https://static.usrfiles.com/ugd/b8c837_dc995817c58b4ba49f064593be302df5.pdf
- https://static.usrfiles.com/ugd/b8c837_c53a84151ae34208987a1b55759b6a9b.pdf
- https://static.usrfiles.com/ugd/b8c837_41b445d729604eb491da607c374981f2.pdf
- https://cdn.shopify.com/s/files/1/0437/7647/5290/files/miller_furnace_parts.pdf
- https://cdn.shopify.com/s/files/1/0435/2635/7160/files/dexcom_g6_product_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/5280/1943/files/32892926284.pdf
- https://cdn.shopify.com/s/files/1/0435/7593/5134/files/mupumonixa.pdf
- https://cdn.shopify.com/s/files/1/0460/0001/3479/files/kavovujopixope.pdf
- https://cdn.shopify.com/s/files/1/0429/6228/8793/files/fidelide.pdf
- https://cdn.shopify.com/s/files/1/0447/5204/4181/files/18145162866.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_off0000b96a.bin` `19b9f6cf4112298aa58d81a193609ec28e002b9e7140e3f9048a2cea086e38af`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB96A	4916 bytes
`font_01_sfnt_off0000ca3c.bin` `217e634ce4424bc5618af8e1dfe1e41dac5879ddf3cc289a51d23705ec73c999`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA3C	14964 bytes

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