Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bd96678bf34f526…

MALICIOUS

PDF

38.2 KB Created: 2020-08-23 23:27:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 621468f454082cedbf956795b04b6d06 SHA-1: ef2d35f338fa53cddc10ebe60624e2408bb1a820 SHA-256: 4bd96678bf34f526a756af32d11c46086d12af9970e5d114dd26e3bac41ca479
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at ttraff.ru. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload. The presence of a link farm suggests an attempt to game search engine results for the term 'windows media video maker free', likely as a lure.

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=windows+media+video+maker+free
    • http://files.powermoneywomen.com/uploads/1/3/1/4/131453144/sedarejajinobafulo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/labopulijitufupuzejulakid.pdf
    • https://cdn.shopify.com/s/files/1/0436/0486/9277/files/43868488416.pdf
    • https://cdn.shopify.com/s/files/1/0431/5725/8395/files/tabel_asmaul_husna_dan_artinya.pdf
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/78225127539.pdf
    • https://cdn.shopify.com/s/files/1/0432/3419/7666/files/xizelinugogakilekafalo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84574839703.pdf
    • https://cdn.shopify.com/s/files/1/0432/7381/4182/files/nadoxad.pdf
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/7571032127.pdf
    • https://cdn.shopify.com/s/files/1/0431/6617/1297/files/food_adulteration_project.pdf
    • https://cdn.shopify.com/s/files/1/0435/7862/2111/files/18602767542.pdf
    • https://cdn.shopify.com/s/files/1/0432/6211/6002/files/zavawirosezomogefomivejeb.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_off000058dc.bin
94ab7017073347301bc46323811fce7ec4acb3c3b538309306019d0d1d122c4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58DC 5248 bytes
font_01_sfnt_off00006abc.bin
dbec5ed292eb4d14d445c0dfa59873bf8b1f78e0f678a2ed6c8b4e04ca23a3fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABC 9836 bytes

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