PDF malware analysis — malicious · a35d8368c14a59c8

MALICIOUS

PDF

47.3 KB Created: 2020-08-04 23:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a638a13d371ba051287d3d2eac8474a1 SHA-1: 816e1338831088f9fe4c2a607a2dd39048c69b9f SHA-256: a35d8368c14a59c81fb66f9746f11637724bfb80e10232524aec4e5b1f306298

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical link to a known malicious redirector infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=malaria+parasite+picture+pdf', suggesting a lure to trick users into clicking on malicious links. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm designed to manipulate search engine results.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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=malaria+parasite+picture+pdf
- http://files.handmadebylouisa.com/uploads/1/3/0/7/130775827/25f7f89e987e0.pdf
- http://files.ondragonwingsstudio.com/uploads/1/3/1/3/131398046/16d36d066.pdf
- http://files.foundationsofadolescentministry.com/uploads/1/3/1/4/131408027/baligaxaxe.pdf
- http://files.saidivinefoundation.org/uploads/1/3/1/0/131070846/motofime.pdf
- https://cdn.shopify.com/s/files/1/0427/7708/4070/files/41744283656.pdf
- https://cdn.shopify.com/s/files/1/0429/8565/2375/files/lareribiramiridesegibejin.pdf
- https://cdn.shopify.com/s/files/1/0431/1682/2692/files/bezolon.pdf
- https://cdn.shopify.com/s/files/1/0430/9866/9220/files/dadaxijidubabegix.pdf
- https://cdn.shopify.com/s/files/1/0430/7261/8657/files/12530236442.pdf
- https://cdn.shopify.com/s/files/1/0431/7977/0019/files/pugemoxefokid.pdf
- https://cdn.shopify.com/s/files/1/0429/6107/6375/files/49973582515.pdf
- https://cdn.shopify.com/s/files/1/0438/2484/0861/files/23100520196.pdf
- https://cdn.shopify.com/s/files/1/0435/9749/6477/files/guletubalegovat.pdf
- https://cdn.shopify.com/s/files/1/0433/1657/6424/files/sewedipadofesolu.pdf
- https://cdn.shopify.com/s/files/1/0434/7048/7712/files/33335106106.pdf
- https://cdn.shopify.com/s/files/1/0427/4647/8759/files/87332244180.pdf
- https://cdn.shopify.com/s/files/1/0437/1959/0040/files/senaxosodigomi.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/
- https://cdn.shopify.com/s/files/1/0427/4647/8759/file

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007a03.bin` `0ad80da5bdfa007c34d092f40f74da861784d4edf933180a81abb3729b7c65e4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A03	5156 bytes
`font_01_sfnt_off00008ba8.bin` `f45ea0f0ed66011f7bfb7637d38493200e57a433874c294b4deca7847cb0f236`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BA8	10740 bytes

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