Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e013901752105ef…

MALICIOUS

PDF

44.0 KB Created: 2020-08-31 07:06:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 284b2943cae82c30ae5942e4225d63b9 SHA-1: 91da8fd0f9996b6c1996031487eca6526465c760 SHA-256: 1e013901752105ef88ecf245492ea08690ed3c46c40eaa2d520c14802dfd50c6
154 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is likely used to distribute malware or unwanted software. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of a PDF link farm heuristic further indicates a malicious intent to drive traffic to external resources. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=serial+daemon+tools+lite+2018
    • https://static.usrfiles.com/ugd/4cf28d_8a2ee1f018c64c85bd7684c585d1aa5c.pdf
    • https://static.usrfiles.com/ugd/c836c3_fdc9c988844e48bfbcdaeaca29e43bb9.pdf
    • https://static.usrfiles.com/ugd/3aca14_3c0762a3891245fa931b22b6aad8234c.pdf
    • https://static.usrfiles.com/ugd/253000_719059515e6642dfab0b5c56c7fa1396.pdf
    • https://static.usrfiles.com/ugd/764aaa_d01855b0bf8d4e70b0e2a064c5cd3f71.pdf
    • https://static.usrfiles.com/ugd/24853a_c0823e5977ba4e0cbe7696ea463d2a58.pdf
    • https://static.usrfiles.com/ugd/1c8c6c_ef31067201b34c14a10bf04e7a69ee11.pdf
    • https://static.usrfiles.com/ugd/74c34a_27abba47482c4579a04019bb2072e21b.pdf
    • https://static.usrfiles.com/ugd/d94ae5_b45157ac79544b7381f91ebcdd2ea427.pdf
    • https://static.usrfiles.com/ugd/b8c837_b65c760b31a648a095036790a0873184.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_off0000673d.bin
84947947e621d65c7e7c1cd6e670e3073787712ff0067716bd915dda6b6ce7df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x673D 5596 bytes
font_01_sfnt_off00007a1f.bin
1cf379879c8f4e5009bc11010efa8dba0b7f2469edbc33ada22a26d5c1beeab4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1F 12948 bytes

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