Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6359d931d3a171b…

MALICIOUS

PDF

36.5 KB Created: 2020-08-30 02:19:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9273177e5cfebd4a405e251aa3262052 SHA-1: 686aa5172cbd50c4ac9e1f2446ac16c0a62742fa SHA-256: a6359d931d3a171b6919a9a8207a2d2f3735a43852f56f98b45ecd62dfbd638f
160 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for 'Gta san andreas cheat menu by h.u.g rar'. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document likely provides instructions to decrypt a password-protected archive, a common tactic to bypass gateway security. The embedded URL points to a redirector that likely leads to the actual malicious payload. The PDF also contains a link farm, suggesting SEO poisoning as a delivery method.

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=gta+san+andreas+cheat+menu+by+h.u.g+rar
    • https://cdn.shopify.com/s/files/1/0429/7608/4117/files/64244759062.pdf
    • https://cdn.shopify.com/s/files/1/0463/9499/8939/files/etiology_of_community_acquired_pneumonia.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/zasirokuwujoxid.pdf
    • https://cdn.shopify.com/s/files/1/0459/2746/5127/files/umbrella_academy_season_2.pdf
    • https://cdn.shopify.com/s/files/1/0434/7854/8630/files/computer_science_question_and_answers.pdf
    • https://static.usrfiles.com/ugd/a382ee_bde3644e85ce48b5bc8c6d670031805e.pdf
    • https://static.usrfiles.com/ugd/b8c837_6aab9125c07940f88d7cef672e60a019.pdf
    • https://static.usrfiles.com/ugd/b8c837_f4afea57049f47549d6eebe7b958a90e.pdf
    • https://static.usrfiles.com/ugd/d2751c_d247b961c392438b95b1abcc2c006d8d.pdf
    • https://static.usrfiles.com/ugd/0e2875_41bffde7de2949768f242e33698ccf48.pdf
    • https://static.usrfiles.com/ugd/3aca14_3a57fe6e44974ba1bd68563218874e82.pdf
    • https://static.usrfiles.com/ugd/7198c1_34919c37b57748068f51d7cadf58966a.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_off00004d38.bin
7f0ad32930fb4cb206e3f666652db66ff7394a82d9bed36f7c5acfec1068f07c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D38 5624 bytes
font_01_sfnt_off00006036.bin
63a8358f8f90f06c554a40f5cc1de5dae2b2d40ab6e838405201de57d81b82aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6036 11148 bytes

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