Malicious PDF — malware analysis report

Static analysis result for SHA-256 f69d72c027eb77a1…

MALICIOUS

PDF

40.9 KB Created: 2020-08-26 22:41:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c165607084e9ce541fff4298946a4f22 SHA-1: feab9c76e5ceca04a6d9df751f9a71a0fc525169 SHA-256: f69d72c027eb77a1f593db43b7e2778cc9a8a12b531227b9a14ecd4a3031c7c2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains text that appears to be a movie title, likely used as a lure. The PDF also contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to the malicious 'ttraff.ru' domain. This suggests the primary attack pattern is to trick the user into clicking the malicious link, which then redirects them to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=a+guide+for+the+married+man+1967+full+movie
    • http://lelowo.pantherbrake.com/uploads/1/3/2/6/132696212/1232641.pdf
    • http://files.jamaicabreakfastprogram.com/uploads/1/3/0/7/130740573/fb9bf6a0.pdf
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/sens_propre_sens_figur_expressions.pdf
    • https://cdn.shopify.com/s/files/1/0428/9455/7350/files/simple_partnership_agreement_template_australia.pdf
    • https://cdn.shopify.com/s/files/1/0429/3050/3846/files/7061826949.pdf
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/zodojedikome.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/21440936943.pdf
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/1984333431.pdf
    • https://cdn.shopify.com/s/files/1/0432/9721/0532/files/28877336719.pdf
    • https://cdn.shopify.com/s/files/1/0438/2231/7725/files/kopow.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xewujixamugovaginebutomo.pdf
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/12459142111.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_off00005e53.bin
d33d810ee77836eb4774ff658992bb98aa3971398f9e26a11b51f23e98bb92cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E53 5632 bytes
font_01_sfnt_off00007169.bin
0f3b054ee699883d93f8d4e4eba17755629cbe504f30d7bda4346d1dede4a2ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7169 10984 bytes

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