PDF malware analysis — malicious · d0b5d7ef0623da2b

MALICIOUS

PDF

45.4 KB Created: 2020-09-07 13:43:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 05095ac977dddec80844f60f1919e98b SHA-1: a80dcc2e0cc40884f4934dae995db06a8d0cd2d5 SHA-256: d0b5d7ef0623da2b69b5c132408f4bc2fce9c7ac203890d611d401a3c83353a9

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious by a machine learning classifier and contains a high number of embedded external links, forming a link farm. One of these links, 'https://ttraff.link/wix?keyword=happy+birthday+to+you+song', is identified as a known malicious redirector. This suggests the document's primary purpose is to redirect users to potentially harmful websites.

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.link/wix?keyword=happy+birthday+to+you+song
- https://cdn.shopify.com/s/files/1/0459/6213/3663/files/online_schengen_visa_application_form_for_norway.pdf
- https://cdn.shopify.com/s/files/1/0430/8644/6746/files/nupanojorut.pdf
- https://cdn.shopify.com/s/files/1/0433/0445/2246/files/vobapuwelitixugogilewexip.pdf
- https://cdn.shopify.com/s/files/1/0437/2683/1784/files/mapujenitanenizorigudul.pdf
- https://cdn.shopify.com/s/files/1/0462/5019/7146/files/30021001137.pdf
- https://cdn.shopify.com/s/files/1/0431/3956/3686/files/womuverozaluril.pdf
- https://cdn.shopify.com/s/files/1/0431/2920/8992/files/beginning_programming_with_java_for_dummies_6th_edition.pdf
- https://cdn.shopify.com/s/files/1/0437/4098/7543/files/zepatinusuzud.pdf
- https://static.usrfiles.com/ugd/b8c837_d25d82c8fd9f4ffeb8bf7ae5e9b12481.pdf
- https://static.usrfiles.com/ugd/8e1900_e80706a9f256453da255d12fd68a97b9.pdf
- https://static.usrfiles.com/ugd/b8c837_4fcd7a7dfbf247f6a5a21191dec8e39c.pdf
- https://static.usrfiles.com/ugd/bc0d1e_463e39683fba4597834ebd0f711d76f3.pdf
- https://static.usrfiles.com/ugd/c836c3_59bad51294ca4f08bcaf3e592a514181.pdf
- https://static.usrfiles.com/ugd/e78b77_3b0f1102232a4a64ae1cb0dfb0866268.pdf
- https://static.usrfiles.com/ugd/bdeb4c_87c5cb2e1f24456785879da2b7b9f5d8.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_off000065de.bin` `6e461ce5971cdca8769b4dee41e56a33eb4e56ab2f54104d7f21c705731cb494`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65DE	5156 bytes
`font_01_sfnt_off0000774c.bin` `94f5e02ae3e7d067494ad558eb1423d16e34ddf80890f80d19dc02a8b585a098`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x774C	10272 bytes
`font_02_sfnt_off00009a88.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A88	4324 bytes

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