Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0a61fa5430abac4…

MALICIOUS

PDF

45.0 KB Created: 2020-09-12 00:06:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 731c9376b9ff7982409ff576b78826ee SHA-1: 1d2bafe2b53f3c9e0f963e642d4b53646d97b7e1 SHA-256: f0a61fa5430abac4effe66c72a60dff82d6ef91f0577db65f682fae259c34642
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.link/wix?keyword=catch+and+kill+book+pdf'. The document body also contains this URL and references a 'catch and kill book pdf', suggesting a lure to trick users into clicking the malicious link. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on static.usrfiles.com.

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.link/wix?keyword=catch+and+kill+book+pdf
    • https://static.usrfiles.com/ugd/2274a7_28af29b435b54f91b8aad6a7b68ee460.pdf
    • https://static.usrfiles.com/ugd/cd79e3_aaeaaa9de6d34befb008afde43e259e8.pdf
    • https://static.usrfiles.com/ugd/217b8a_a4436412c2c24b10b0fcea1a26df7a05.pdf
    • https://static.usrfiles.com/ugd/136d3d_9bec09fd3ff042ac8e6aa5b5616b8554.pdf
    • https://static.usrfiles.com/ugd/2486b5_95e9d1b97dc24ad3b63188229977a40f.pdf
    • https://static.usrfiles.com/ugd/12f4eb_9ede4eeaa12b492089e18bd5181af5ba.pdf
    • https://static.usrfiles.com/ugd/f09a9d_b26fab688e3d412f8e8c0e5d7e237839.pdf
    • https://static.usrfiles.com/ugd/8ab72e_7f561031dcd14d9b83d39e090828c9bd.pdf
    • https://static.usrfiles.com/ugd/fd7405_b9739219fe8040918420ed333002c584.pdf
    • https://static.usrfiles.com/ugd/fafc38_5fb5b5d7f42d4e0c80a42b6e0b99eb30.pdf
    • https://cdn.shopify.com/s/files/1/0430/2592/4249/files/auditoria_interna.pdf
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/assertiveness_vs_aggressiveness.pdf
    • https://cdn.shopify.com/s/files/1/0437/1913/1285/files/keposawemuzebiboz.pdf
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/44187413437.pdf
    • https://cdn.shopify.com/s/files/1/0463/0819/6517/files/anticipation_inventory.pdf
    • https://cdn.shopify.com/s/files/1/0434/6170/5890/files/79769849945.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_off00007383.bin
ad95543e4c985d21617e77b8f6d7969a0aef27b9a9cc569414b4b18e8bd3fe3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7383 5080 bytes
font_01_sfnt_off000084c6.bin
577d56e6e51a9a71eb1dbaae2112d4047c4911318b3391cc129662443be7c287		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84C6 10192 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.