PDF malware analysis — malicious · 767ab267c5d39bee

MALICIOUS

PDF

35.9 KB Created: 2020-08-19 20:32:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: fb44e425512b8c0c2ff1e3ce12327415 SHA-1: f7fe66b17cc2389f19549cc7e9e77bef612d21e1 SHA-256: 767ab267c5d39beeb0c3b889456b9e2837b7d6befde55cf7852432a68d524853

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link redirects to a known malicious domain (ttraff.cc). The document body, though heavily obfuscated, contains the same malicious URL. This suggests a phishing or redirection attack aiming to lead users to harmful content.

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/pify?keyword=android+meaning+in+malayalam
- http://gabij.bassreevesconference.com/uploads/1/3/1/3/131381612/19494ebed57bb.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/6579/4965/files/42588196523.pdf
- https://cdn.shopify.com/s/files/1/0433/8437/3406/files/canticle_of_mary.pdf
- https://cdn.shopify.com/s/files/1/0438/6711/1584/files/acarology_books.pdf
- https://cdn.shopify.com/s/files/1/0430/3188/8035/files/ccna_security_topics.pdf
- https://cdn.shopify.com/s/files/1/0428/8679/1334/files/antimicrobial_activity_of_allium_sativum.pdf
- https://cdn.shopify.com/s/files/1/0431/0358/4409/files/76912830906.pdf
- https://cdn.shopify.com/s/files/1/0432/6552/3862/files/faxodiwifen.pdf
- https://cdn.shopify.com/s/files/1/0451/0469/3400/files/afcat_mock_test_papers.pdf
- https://cdn.shopify.com/s/files/1/0434/8336/5528/files/butterfly_wallpaper_free.pdf
- https://cdn.shopify.com/s/files/1/0433/9220/4950/files/rinosixasodasijox.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_off00004f3d.bin` `46de07f36650d186c5c352a9f2dea8a6cbf7620af3ebab39c903d015d0eb89c4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4F3D	5056 bytes
`font_01_sfnt_off00006056.bin` `2341f14260e344a1a8da1c9fef1e407d03f87ac6421734a9b591913b7d4f8b31`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6056	10188 bytes

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