PDF malware analysis — malicious · 2fab9d6b10bf325a

MALICIOUS

PDF

35.4 KB Created: 2020-08-31 07:52:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: dbbfafec3a302d728e4cb01c455d8c9e SHA-1: 0dd2cff0ef0ebcfa7a79bce4cae82568e29b850d SHA-256: 2fab9d6b10bf325a37e4aa2a99d09e830522c3ac8ecf04d4d5955411bf1c9b21

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.ru'. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to PDFs hosted on Shopify. The ML classifier also strongly indicated maliciousness. The embedded document body contains the malicious URL, suggesting a lure or redirection mechanism.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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/wix?keyword=jung-+und-+frei-+magazine
- https://cdn.shopify.com/s/files/1/0433/4790/2623/files/vocabulaire_juridique_franais_espagnol.pdf
- https://cdn.shopify.com/s/files/1/0434/1907/4716/files/calendario_2020_mensile_gratis.pdf
- https://cdn.shopify.com/s/files/1/0432/5123/7032/files/52114577463.pdf
- https://cdn.shopify.com/s/files/1/0429/8106/4853/files/combine_arrays_javascript.pdf
- https://static.usrfiles.com/ugd/b8c837_27577276623640c6a825ef9012684114.pdf
- https://static.usrfiles.com/ugd/4117a9_d54637c603bc4b66b56de6002bec6667.pdf
- https://static.usrfiles.com/ugd/fbccce_8e2dfbe5a86a420499205910eece63fa.pdf
- https://cdn.shopify.com/s/files/1/0431/9150/0961/files/ripazawuv.pdf
- https://cdn.shopify.com/s/files/1/0451/0665/9493/files/secured_copy_text.pdf
- https://cdn.shopify.com/s/files/1/0427/7728/0671/files/xoxefuxezakiloxe.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_off00004020.bin` `d58ebd8a7035f54ad3a6049c9311364916d5679e48798e2aa3d0ab525a1f94a1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4020	4780 bytes
`font_01_sfnt_off0000503e.bin` `01afdc6e008065f968dcff94d90e65e224302559c72de230b056dd7a49b50a12`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x503E	9920 bytes
`font_02_sfnt_off00007183.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7183	4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.