Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e226a68097c615b…

MALICIOUS

PDF

44.6 KB Created: 2020-08-31 05:10:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22138d95f6f37a056d4d127459c1e1be SHA-1: 6d1e8d3c28e39c077b02d7e603fb7045009c8358 SHA-256: 9e226a68097c615bd0d36a2c55e4d381cfd920c6dfcd86b43d84df04bae83de2
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that points to ttraff.com, a known malicious domain. The document also exhibits characteristics of a link farm, embedding numerous external links, one of which is identified as a potential redirector. The presence of a 'download button' heuristic further supports the attack pattern of luring users to click malicious links.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/wix?keyword=devirgilio+surgery+pdf+free
    • https://static.usrfiles.com/ugd/73c254_91a5f050b7ae4372a81fffcc5094daee.pdf
    • https://static.usrfiles.com/ugd/b8c837_41d13a3249a24646b06d8eedd46bd597.pdf
    • https://static.usrfiles.com/ugd/5ad03d_6053540d62b74fe9a3542c4ea8766fe7.pdf
    • https://static.usrfiles.com/ugd/2c8d66_72e4559ff91b495dbdb157c23fcd5860.pdf
    • https://cdn.shopify.com/s/files/1/0429/6074/8695/files/10762418826.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/tisezozijewumem.pdf
    • https://cdn.shopify.com/s/files/1/0432/0110/1985/files/astm_a193_grade_b7.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sikotifukiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/2109/1484/files/nogufotumowitexoweka.pdf
    • https://static.usrfiles.com/ugd/ea5d7b_3c83f3875baf414ca761c7f04dc3a6a0.pdf
    • https://static.usrfiles.com/ugd/b8c837_95d3cb5d56764b24be6e54d0e39ab094.pdf
    • https://static.usrfiles.com/ugd/f65518_23a6bf53ccdf4250a9971b11bca2d243.pdf
    • https://static.usrfiles.com/ugd/909b15_541854692d3243cb9628c3459d19f525.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_off0000678f.bin
927f0cee5c135b737efd3777b17253c3f31e3cbdd5b65831c6f25ae6a47fa345
pdf-font-stream PDF embedded font (sfnt) at offset 0x678F 5160 bytes
font_01_sfnt_off0000793b.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
pdf-font-stream PDF embedded font (sfnt) at offset 0x793B 1800 bytes
font_02_sfnt_off000081c9.bin
2999f8fbd28dc2c716bf3d4511f50b40ab25ea35379c01b53ecb2b9e8e163f99
pdf-font-stream PDF embedded font (sfnt) at offset 0x81C9 10308 bytes