Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fd08fd8897c3e24…

MALICIOUS

PDF

44.3 KB Created: 2020-08-29 23:50:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 881e140b900e87e54c454339d398ce5a SHA-1: 587c2d8e8ef1b86b188ed264e66bd928925f7b5d SHA-256: 1fd08fd8897c3e24c76b4e4329de832c9b5cdcdec5b99f9b1f46df93f9bd122e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=el+luchador+pelicula+completa+repeli'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to 'static.usrfiles.com'. The document body, though heavily corrupted, contains fragments suggesting a lure related to a movie title, reinforcing the malicious redirector's purpose. No scripts were extracted from this sample.

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.me/wix?keyword=el+luchador+pelicula+completa+repeli
    • https://static.usrfiles.com/ugd/b8c837_1638111e37bd4c80b3b30bbc8a6ccb82.pdf
    • https://static.usrfiles.com/ugd/b58d21_e0872c4e02e04903899afcb53ff9c969.pdf
    • https://static.usrfiles.com/ugd/16a96a_6b78f2a74ebd4c779c7abb01edf4518b.pdf
    • https://static.usrfiles.com/ugd/b8c837_22813a1d775f470e99dea0f87da2c60b.pdf
    • https://static.usrfiles.com/ugd/b8c837_4e20110fd41f4636b6ca4aa6395a8683.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifivejeg.pdf
    • https://static.usrfiles.com/ugd/b8c837_b11d34bfef5b4b889ad007d69733c5ae.pdf
    • https://static.usrfiles.com/ugd/b8c837_f0364a0c79614c7c8e994394df21ac15.pdf
    • https://static.usrfiles.com/ugd/b8c837_0886d31f1664441f8bb7cbfafe06eb2f.pdf
    • https://static.usrfiles.com/ugd/b8c837_29702eee934542ef97ce5f83ed0a6068.pdf
    • https://static.usrfiles.com/ugd/93971e_498f5d32baad4bb09f03c038508ce6a0.pdf
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/26041101021.pdf
    • https://cdn.shopify.com/s/files/1/0431/4906/6394/files/dabomurabinogidi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9812/9059/files/bseb_12th_exam_date_2020_time_table.pdf
    • https://cdn.shopify.com/s/files/1/0435/0889/1807/files/gamof.pdf
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/71580794937.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_off000061cd.bin
978e8cbc5d7a025a6591705cd1c43aa060033ca268acb9900ee2bceaf921129c
pdf-font-stream PDF embedded font (sfnt) at offset 0x61CD 4868 bytes
font_01_sfnt_off00007253.bin
56bfe007ab0519460f8ff68fa6ec36b9cd090c0e4f03e42b92667b4e493f8bea
pdf-font-stream PDF embedded font (sfnt) at offset 0x7253 10704 bytes
font_02_sfnt_off00009633.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x9633 4324 bytes