Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7fe5cd9be9a5d76…

MALICIOUS

PDF

41.8 KB Created: 2020-08-29 01:13:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71b2788cbd37b32d2f55d9a3b2e68d0e SHA-1: cf1d22bc9acff4303d5ad19f5eb04d99354132f9 SHA-256: d7fe5cd9be9a5d76146ddba7bdb0ce1e3b4f746849b62649bbb356997ec53b0b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many pointing to Shopify domains, suggesting an attempt at SEO poisoning or link farming. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/wix?keyword=barbie+doll+wallpaper++hd'. The document body, though heavily obfuscated, contains references to 'barbie doll wallpaper hd' and the authoring application 'wkhtmltopdf', indicating a lure to a malicious site disguised as content. No scripts were extracted from this sample.

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.com/wix?keyword=barbie+doll+wallpaper++hd
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/mijuxuvigiwemezupasigit.pdf
    • https://cdn.shopify.com/s/files/1/0438/0858/7938/files/prisms_and_cylinders_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0457/4448/8604/files/louisiana_criminal_justice_reform_2018.pdf
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/fapatifupininagap.pdf
    • https://static.usrfiles.com/ugd/b8c837_52db3154e7c3442d9f3b20996c601b15.pdf
    • https://static.usrfiles.com/ugd/b8c837_ee156484cb8940ff8acfb0f0c7cf1a97.pdf
    • https://static.usrfiles.com/ugd/b8c837_96bb1220464242ba9e414e2cc5540424.pdf
    • https://static.usrfiles.com/ugd/b8c837_f2bf66bbaf7a4b95838343b21e832e35.pdf
    • https://static.usrfiles.com/ugd/b8c837_dcae2287c2444677980c1b0ab658b60f.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/980195019.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/12320026683.pdf
    • https://cdn.shopify.com/s/files/1/0431/9730/0885/files/obey_70_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9219/files/gorasepiwosilomabugum.pdf
    • https://cdn.shopify.com/s/files/1/0438/2271/0941/files/tubolegaterivuvam.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.

FilenameKindSourceSize
font_00_sfnt_off000065f4.bin
47f88c03b00e849e43c24d7ea7df57996a02402386df6f605bf7ff511e7991a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65F4 5152 bytes
font_01_sfnt_off0000777d.bin
7a247c70544f69fbc394bec358dfc42a571dbf1d7cdbcb2a03910da862da2e54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x777D 10352 bytes

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