Malicious PDF — malware analysis report

Static analysis result for SHA-256 415d96f184620af2…

MALICIOUS

PDF

46.2 KB Created: 2020-08-31 01:49:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e0ca0fda7d2f23c6ace057ab778a11d SHA-1: 4f71f37a8fdff5e25a8ef8b29b558046cc0f7937 SHA-256: 415d96f184620af247006e20a1941fbef9676d4a51d37e8e000791eda950d7d9
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at `https://ttraff.ru/wix?keyword=nocturne+guide+s7`. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious infrastructure. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

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=nocturne+guide+s7
    • https://cdn.shopify.com/s/files/1/0434/1419/2285/files/ordo_arecales.pdf
    • https://cdn.shopify.com/s/files/1/0428/4809/2323/files/91507452001.pdf
    • https://cdn.shopify.com/s/files/1/0437/8345/4872/files/pegolowixizafu.pdf
    • https://static.usrfiles.com/ugd/9219f8_67109e28a53c4609bd0e67d21c62179c.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f497ba781d34cb5a5cacf40d1b91d67.pdf
    • https://static.usrfiles.com/ugd/b8c837_a7e8c56585f840e6b619c65076370ccf.pdf
    • https://static.usrfiles.com/ugd/b8c837_9545fc83364849ceb61819afe2b5c65b.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/cara_bongkar_password.pdf
    • https://cdn.shopify.com/s/files/1/0435/5060/5461/files/55987122768.pdf
    • https://cdn.shopify.com/s/files/1/0437/6671/0429/files/fixugiduzu.pdf
    • https://cdn.shopify.com/s/files/1/0436/0349/3022/files/55600955568.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_off000063e0.bin
1079ce5c3c3e1c0389afbfebaa093a6807b8073e14eba36397c95b4ae9b59f10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E0 4796 bytes
font_01_sfnt_off00007445.bin
906a6c7a7169a733fdb25b733aa10b6f0a3259580b2ed6c8fbc6be6454440c7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7445 13432 bytes
font_02_sfnt_off00009e73.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E73 4324 bytes

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