PDF malware analysis — malicious · d8f422415ca6c459

MALICIOUS

PDF

38.8 KB Created: 2020-08-04 21:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b2a012af121305270ae8b7fe9bce8b3e SHA-1: edfe443da991f561ff84ba523441dd0e808a020e SHA-256: d8f422415ca6c4593d3fec8df952e3b6ce5723287ba015ffde7295a668887a5f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.ru. This suggests a link farm or SEO poisoning tactic designed to funnel users to malicious infrastructure. The ML classifier also strongly indicated maliciousness.

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=acidity+of+phenols+pdf
- http://files.americandrillreport.com/uploads/1/3/0/9/130969473/9322614.pdf
- http://files.chinoteaparty.net/uploads/1/3/2/8/132816041/vefavox-tomedidedejo-kifupeg-fawibirovunabij.pdf
- http://files.sswonline.com/uploads/1/3/0/8/130813757/6073405.pdf
- http://files.foosie.store/uploads/1/3/0/9/130969654/sokusudekagajuxinimo.pdf
- http://files.bodybrainexercise.com/uploads/1/3/1/3/131398097/fomuw-fuvonixudegetal-pumuduxev-lezekizewuzo.pdf
- https://cdn.shopify.com/s/files/1/0435/5004/8420/files/13934291608.pdf
- https://cdn.shopify.com/s/files/1/0430/3667/2162/files/rolling_with_the_flow.pdf
- https://cdn.shopify.com/s/files/1/0428/3629/5836/files/74038312800.pdf
- https://cdn.shopify.com/s/files/1/0428/8456/3110/files/logan_s_run_tv_series.pdf
- https://cdn.shopify.com/s/files/1/0429/6779/3820/files/reralajegedewo.pdf
- https://cdn.shopify.com/s/files/1/0433/1651/0873/files/latin_bass_book.pdf
- https://cdn.shopify.com/s/files/1/0428/6559/0438/files/lufenokibumanuwol.pdf
- https://cdn.shopify.com/s/files/1/0432/5824/9376/files/zebuvoperuxiji.pdf
- https://cdn.shopify.com/s/files/1/0434/0314/9462/files/37734199022.pdf
- https://cdn.shopify.com/s/files/1/0433/1231/6584/files/bagiriwixup.pdf
- https://cdn.shopify.com/s/files/1/0437/7994/8705/files/rawatafid.pdf
- https://cdn.shopify.com/s/files/1/0440/6453/8776/files/island_royal_hacks.pdf
- https://cdn.shopify.com/s/files/1/0436/8780/5081/files/reverse_list_python.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_off00005d99.bin` `f8f0a3ce494413fc3cb182d13027d4292d5424b3cb4f59c41403390004557625`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D99	5028 bytes
`font_01_sfnt_off00006ecc.bin` `8b9e714700a6b205731ce26180770ac5d9b962e28ec327fd2a76fb373dd173d1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6ECC	9328 bytes

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