Malicious PDF — malware analysis report

Static analysis result for SHA-256 f93e0f296d12c9b1…

MALICIOUS

PDF

51.7 KB Created: 2020-08-30 21:21:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fe11acb89badec1640529af92a3b869 SHA-1: 1e1a2a275135b7a628903753e4a3eb6289e82103 SHA-256: f93e0f296d12c9b17f677602f7b2500179246f892946ac42de896b0dd49ee7dc
160 Risk Score

Malware Insights

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

The PDF file contains a link to a redirector URL, ttraff.ru, which is flagged as malicious. Additionally, the heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests that the document is designed to trick the user into believing they need a password to access an archive, a common tactic for delivering encrypted malware. The presence of numerous links, including the malicious redirector, points towards a phishing or social engineering attack aimed at delivering a secondary payload.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=chrysler+pacifica+2004+manual+espa%25C3%25B1ol
    • https://static.usrfiles.com/ugd/b8c837_363a21300852470bb82d5ec650e2785c.pdf
    • https://static.usrfiles.com/ugd/f84671_79dd6bfd01544cffb1b68de30a1d2136.pdf
    • https://static.usrfiles.com/ugd/b8c837_e81b3a8bda664ba2b2e53345be4cb0df.pdf
    • https://static.usrfiles.com/ugd/a2ebd8_4af8110f9df84ad8bd9b9d92b7cfe0b2.pdf
    • https://static.usrfiles.com/ugd/067ecb_b15fd7377536430c8a3e9d6a572cd52a.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/79939816862.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/libro_rojo_carl_jung.pdf
    • https://static.usrfiles.com/ugd/3649d2_d1b6092ba5f440f7ae3f81359f3fc29b.pdf
    • https://static.usrfiles.com/ugd/0d2908_d5653e154da349d6acb3ef2b81b601eb.pdf
    • https://static.usrfiles.com/ugd/ca300b_e50cec89f5404e63a3c10c0a6564ab45.pdf
    • https://static.usrfiles.com/ugd/b8c837_03e43f3c253b4dedb96b00dbd9981e3e.pdf
    • https://static.usrfiles.com/ugd/fe83c3_40244e66c4814352a3abc318b520d38e.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ce5197c9e444e41af22a31f73cc618d.pdf
    • https://static.usrfiles.com/ugd/05900a_8c3cdadc437145749f869d72d1d734fe.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_off00007d5f.bin
92d733b57e197e02bfda7f48fc75fb9c000aaa4b21404303ff51909ebce0797a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5F 5836 bytes
font_01_sfnt_off000090d7.bin
80ba739421865efba97e615a3b47662e02d54ab5799f16fc95d6b7167e7a1abf
pdf-font-stream PDF embedded font (sfnt) at offset 0x90D7 14920 bytes