Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eb0c60773aaa40a…

MALICIOUS

PDF

36.3 KB Created: 2020-08-16 20:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b4664a0474dbe87aefebc3ebf16cce8 SHA-1: cdbec33da6b0905ce4f339958650e1be178c4095 SHA-256: 3eb0c60773aaa40a67a56e9844ae7fb33a01a01baaa82654b1f2e409a971d3aa
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous URLs. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=aarti+laxmi+mata+video', suggesting an attempt to lure users to malicious content. The document body, though heavily obfuscated, also contains this URL and other PDF links, reinforcing the attack pattern of SEO spam or phishing via a link farm.

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=aarti+laxmi+mata+video
    • http://files.hudsonfoodcollective.com/uploads/1/3/0/8/130874042/804d60e1414e.pdf
    • http://nemulodez.brettwalker.solutions/uploads/1/3/0/8/130814328/puguxojamal_ligatazer_bukof_belafelazawa.pdf
    • http://lovosoj.proteus-mrighifu.net/uploads/1/3/0/8/130814297/nobimojebi_dodawesamolida.pdf
    • https://cdn.shopify.com/s/files/1/0431/6338/6017/files/nokakagipotobusuxugu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0777/7702/files/mediocratie_alain_deneault.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/pex_permissions_example.pdf
    • https://cdn.shopify.com/s/files/1/0433/6369/6805/files/58182135145.pdf
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/69110816275.pdf
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/bloodborne_forbidden_woods.pdf
    • https://cdn.shopify.com/s/files/1/0431/4244/7265/files/mulivaveg.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kubogofire.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/nenonuruzip.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_off00005217.bin
4747fe5dbeaf6b6902871e0a040c073fc501e934b0698fbd911cd5ac1d45ba4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5217 4908 bytes
font_01_sfnt_off000062b4.bin
0a89633014460deb41e8a9d96fae6eae10d2512f516c03b52914da858ba77e6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62B4 9920 bytes

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