PDF malware analysis — malicious · 7f75bf4286f28b85

MALICIOUS

PDF

45.7 KB Created: 2020-08-02 22:38:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a900dccb0a2a5504cbd0c97d99920d39 SHA-1: 5cf4f64fdf40d07e77e27c907621ace4173d6cd4 SHA-256: 7f75bf4286f28b852ada89d0b68ec3d84e2f40bcbfaf3c670cc68ee53a8c1348

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF document contains a mass of external links, many of which point to a redirector service (ttraff.ru) known for malicious activity. The document body, though partially obfuscated, contains the string 'Sally salons games' and a URL that appears to be part of this redirection scheme. The presence of numerous PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the primary attack vector is the redirection to malicious URLs.

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.ru/pify?keyword=sally+salons+games
- http://files.manorfieldspark.org/uploads/1/3/0/7/130739132/lopalaziro_niguzuzaloja.pdf
- http://files.greenmeadowsbaptistchurch.com/uploads/1/3/0/8/130814258/1127575.pdf
- http://files.outloudvideo.com/uploads/1/3/1/6/131606454/sotupumaj-newuxu.pdf
- http://files.concretebendoregon.net/uploads/1/3/2/6/132682542/773040.pdf
- https://cdn.shopify.com/s/files/1/0433/5003/2549/files/98859039890.pdf
- https://cdn.shopify.com/s/files/1/0430/3772/0733/files/mabibuzim.pdf
- https://cdn.shopify.com/s/files/1/0440/8626/3960/files/complete_guide_to_drawing_from_life.pdf
- https://cdn.shopify.com/s/files/1/0428/8249/8716/files/zudatesi.pdf
- https://cdn.shopify.com/s/files/1/0430/5630/0186/files/nalepewituwubazokujudor.pdf
- https://cdn.shopify.com/s/files/1/0430/9496/6436/files/vigojig.pdf
- https://cdn.shopify.com/s/files/1/0433/8706/0378/files/4405368732.pdf
- https://cdn.shopify.com/s/files/1/0431/0925/3281/files/fogozinuxeruwo.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gekisemegudifusoledo.pdf
- https://cdn.shopify.com/s/files/1/0432/3452/5352/files/41193611203.pdf
- https://cdn.shopify.com/s/files/1/0430/8844/5591/files/rigutirenatuduwazu.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006ad4.bin` `a1420cfb9d53623bc915f9cbd6aa6429574b55a7ff245c3418c3d317148177d1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6AD4	5116 bytes
`font_01_sfnt_off00007c29.bin` `b45c62d5613ddef6e7e0f70851ad0cdbca2410a55d14d40e71b7f596dccccee6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C29	1884 bytes
`font_02_sfnt_off0000854b.bin` `c8b133ed61f91cf36acdec05d6efd1d74130ffa94c003a4a9d932669276d3b6d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x854B	10724 bytes

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