PDF malware analysis — malicious · d0052956e499355c

MALICIOUS

PDF

45.0 KB Created: 2020-08-20 19:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a994338532fd4a4996891a885b987857 SHA-1: 0807aa06b1dda1d3d37a32781ad2ef4e3d7deb18 SHA-256: d0052956e499355c85ee9e236a0dc2ef049ea8dfec99a7cd7807a61634177c71

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the lure. The PDF also contains a large number of external links, many pointing to Shopify, which is characteristic of SEO link farm abuse to disguise malicious content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=cushman+wakefield+market+research+reports.

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=cushman+wakefield+market+research+reports
- http://wikexita.lilaura.com/uploads/1/3/2/6/132681579/8da6a350eab863.pdf
- http://lugowuw.wechoosetoday.com/uploads/1/3/1/6/131637136/3741805.pdf
- http://files.sikhheritagegroup.com/uploads/1/3/1/6/131636655/kuputilu.pdf
- https://cdn.shopify.com/s/files/1/0429/5809/4495/files/animals_images_with_names.pdf
- https://cdn.shopify.com/s/files/1/0435/4395/3567/files/37208113817.pdf
- https://cdn.shopify.com/s/files/1/0431/3032/3101/files/workforce_diversity_policy_template.pdf
- https://cdn.shopify.com/s/files/1/0452/6866/4481/files/biochemistry_online_book.pdf
- https://cdn.shopify.com/s/files/1/0438/6576/8096/files/napezupadibe.pdf
- https://cdn.shopify.com/s/files/1/0431/8396/4324/files/vokuremozupakunotoru.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3750/files/dezemitexodaxigoruxemizip.pdf
- https://cdn.shopify.com/s/files/1/0434/6403/2421/files/78828691325.pdf
- https://cdn.shopify.com/s/files/1/0432/8852/7006/files/someone_named_eva.pdf
- https://cdn.shopify.com/s/files/1/0437/2827/3569/files/37201028077.pdf
- https://cdn.shopify.com/s/files/1/0435/9297/4499/files/xebuv.pdf
- https://cdn.shopify.com/s/files/1/0431/7508/4193/files/vowixuwanu.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_off000062c6.bin` `d936b7a2f11f9fc5303402b0c8daf06f1994f63ea7831e12649428eeda31221e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62C6	5456 bytes
`font_01_sfnt_off00007538.bin` `2078cfd7fe81f4ee835ee21606d39be21e3d3459bb842c3327581bceaf42ba89`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7538	10540 bytes
`font_02_sfnt_off000098f2.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x98F2	4324 bytes

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