Malicious PDF — malware analysis report

Static analysis result for SHA-256 97e7c52c15a522c5…

MALICIOUS

PDF

53.4 KB Created: 2020-08-20 06:18:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a0daa5b59bd9b90f9a77f0805a46a44 SHA-1: 76befcb1b6e09eb55c46c54570b0ea36d2f4a334 SHA-256: 97e7c52c15a522c5f4c37bd697ba6c81044f4496135ffa206a4bce4e2437b2b0
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with a critical heuristic firing for a PDF link farm. One of the primary links points to a known malicious redirector. The document body contains garbled text but includes the URL 'https://ttraff.ru/pify?keyword=peoples+encounter+movie+songs+free', which is flagged as malicious. This suggests the document's purpose is to lure users to malicious infrastructure, likely for further exploitation or phishing.

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=peoples+encounter+movie+songs+free
    • http://files.tattnallarchives.org/uploads/1/3/1/3/131383763/8940685.pdf
    • https://cdn.shopify.com/s/files/1/0463/0675/4717/files/41352774522.pdf
    • https://cdn.shopify.com/s/files/1/0434/8674/0646/files/87245970750.pdf
    • https://cdn.shopify.com/s/files/1/0435/2563/6250/files/breaking_the_habit_of_being_yourself_summary.pdf
    • https://cdn.shopify.com/s/files/1/0431/7731/2405/files/zegegori.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8357326041.pdf
    • https://cdn.shopify.com/s/files/1/0440/8826/2821/files/sewibubataxavefadudaro.pdf
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/kosemivovititiguwokaraba.pdf
    • https://cdn.shopify.com/s/files/1/0454/7008/9382/files/gazosizujowat.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0840/files/aqa_physics_trilogy_textbook_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38804475130.pdf
    • https://cdn.shopify.com/s/files/1/0429/1526/6723/files/17613234500.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_off00008a3d.bin
46a5441f30124860404f338fb6ae5f3d0c64be945745c3bc4e9700fef07e7c2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A3D 5184 bytes
font_01_sfnt_off00009bd6.bin
1898ed9a816dab3262df2427c89c0d048256c6ae2ef5f5101c82029edd7b06e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BD6 14424 bytes

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