Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5f2648df0efd28…

MALICIOUS

PDF

43.2 KB Created: 2020-08-31 11:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 535f069a891a01fc88da1e2bf490d763 SHA-1: 111f32bcfc67eb9e35382ad9b5447bfd1c1034d9 SHA-256: 2e5f2648df0efd284d6c9be33e048ae5159810474ae56a2bb7e0f620aa46e4ed
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF SEO link farm. The primary malicious URL, 'https://ttraff.ru/wix?keyword=pomeranian+breeders+in+pennsylvania', is flagged as a known malicious redirector. While no scripts were extracted, the sheer volume of links and the presence of a malicious redirector suggest an attempt to lure users to potentially harmful content or manipulate search engine rankings.

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/wix?keyword=pomeranian+breeders+in+pennsylvania
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/bejopujotamediximajolaba.pdf
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/11763447489.pdf
    • https://cdn.shopify.com/s/files/1/0436/9275/3049/files/damedokujovonimepigovivi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7030/0065/files/vosefub.pdf
    • https://static.usrfiles.com/ugd/affb4a_5a0ec52e18fb496ea4536893bb7efbd8.pdf
    • https://static.usrfiles.com/ugd/f967ac_ad95ce901d1644ceb5480c8f04300987.pdf
    • https://static.usrfiles.com/ugd/4bb894_dc0ca9fcbb3f4211988528d3daf9f199.pdf
    • https://static.usrfiles.com/ugd/6f58fb_5ec8115b82594706ae083575d5eccfcd.pdf
    • https://static.usrfiles.com/ugd/599f1c_6779d5ff3daf440a8066e09a1d4689a9.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f19b026a2444fb8a703bc85c9544f80.pdf
    • https://static.usrfiles.com/ugd/b8c837_2df67ebf33d145a4a7d7626fcc6d1c51.pdf
    • https://static.usrfiles.com/ugd/73c254_15ddf2a98a3c45d0be1af133a66feb2a.pdf
    • https://cdn.shopify.com/s/files/1/0432/3413/2131/files/bekosofutirazetodin.pdf
    • https://cdn.shopify.com/s/files/1/0435/4175/8101/files/bolutinujore.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.

FilenameKindSourceSize
font_00_sfnt_off00005d66.bin
e3c1180d2f887b81ab2bb2d0af8f6c67ed87b9c48bd4e215da69dda58c73bd26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D66 5116 bytes
font_01_sfnt_off00006e99.bin
bfef3020180a42833870464837f388a03cb647dec53f09511f9e99dc8dfbc45b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E99 10480 bytes
font_02_sfnt_off000091ef.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91EF 4324 bytes

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