PDF malware analysis — malicious · 249065002365f346

MALICIOUS

PDF

42.6 KB Created: 2020-08-08 11:22:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5f21139b3d9e3e090aabf41ad9e21110 SHA-1: ff8fb90c9755a74074f6c57ce0f05c4638527ac6 SHA-256: 249065002365f346f7218f06eaafca1b0434032ce5c10e2d2f205facdd78791f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=arthritis+definition+pdf', indicating a lure to a malicious site. The primary attack pattern involves redirecting users to malicious infrastructure via embedded links.

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.ru/pify?keyword=arthritis+definition+pdf
- http://files.longxarts.com/uploads/1/3/1/3/131380889/5276103.pdf
- http://files.taoacupuncturemarin.com/uploads/1/3/1/8/131856290/d1da8948.pdf
- http://files.kmgartistry.com/uploads/1/3/2/3/132303269/8702585.pdf
- http://nizaba.procure-ico.eu/uploads/1/3/2/7/132740214/b29eccda7.pdf
- http://butop.smalltowntoffee.com/uploads/1/3/1/4/131453194/gisitokuguwo.pdf
- https://cdn.shopify.com/s/files/1/0431/6954/6395/files/sovumugewogusaxogutixot.pdf
- https://cdn.shopify.com/s/files/1/0437/4292/0869/files/pdf_autocad_converter_online.pdf
- https://cdn.shopify.com/s/files/1/0436/3531/0752/files/bibejotoxuwosivimawog.pdf
- https://cdn.shopify.com/s/files/1/0432/4586/3067/files/vikuxonekifevizeri.pdf
- https://cdn.shopify.com/s/files/1/0430/5698/8317/files/breast_cancer_awareness_campaign.pdf
- https://cdn.shopify.com/s/files/1/0431/2891/4074/files/86911953703.pdf
- https://cdn.shopify.com/s/files/1/0446/9299/6252/files/taoist_shaman_practices_from_the_wheel_of_life.pdf
- https://cdn.shopify.com/s/files/1/0431/5322/7936/files/biriga.pdf
- https://cdn.shopify.com/s/files/1/0440/7905/5000/files/aromatic_hydrocarbons.pdf
- https://cdn.shopify.com/s/files/1/0429/2627/6775/files/waletumavelojinibuz.pdf
- https://cdn.shopify.com/s/files/1/0440/8344/5925/files/aliphatic_and_aromatic_compounds.pdf
- https://cdn.shopify.com/s/files/1/0432/3000/3357/files/38521941154.pdf
- https://cdn.shopify.com/s/files/1/0448/0620/9702/files/business_case_study_example.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006aa5.bin` `de07d8d09f5c534280382a4031039215d8a208bb84a3cecff64dfba67ae8d87d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6AA5	4876 bytes
`font_01_sfnt_off00007b39.bin` `dc717981074ffbcebc84b79dfa868a77f83b35189c80a3429ea75619bcd90d3d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B39	10096 bytes

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