Malicious PDF — malware analysis report

Static analysis result for SHA-256 e769cbd630a9ddec…

MALICIOUS

PDF

48.5 KB Created: 2020-08-31 03:31:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cef552e4de16b5c0bcc6007d12acb39b SHA-1: 95daaf6d937047befb5178bfb6400f1d382f8fc2 SHA-256: e769cbd630a9ddec2ce5ff111497efbe7e68c603dded7f7d7f99773469206734
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that aligns with the malicious redirector finding. The presence of a "download button" heuristic further suggests a lure to initiate a malicious download or redirect.

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.ru/wix?keyword=iphone+template+image
    • https://static.usrfiles.com/ugd/affb4a_c5032469f7b64b6bb8cf37924be9dd72.pdf
    • https://static.usrfiles.com/ugd/b8c837_942c5375e538440f8284ddcaf11f1afd.pdf
    • https://static.usrfiles.com/ugd/b8c837_15e476fb881f4d30ba11ea5f63b6d2c8.pdf
    • https://static.usrfiles.com/ugd/26481d_63ecca5d808543dd8f523d5d7b261d7a.pdf
    • https://cdn.shopify.com/s/files/1/0434/6052/6246/files/marvel_ultimate_alliance_2_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/95377301892.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/agrippina_libretto.pdf
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/12775989380.pdf
    • https://cdn.shopify.com/s/files/1/0429/2119/7724/files/19.3_adverb_clauses_practice_1_answe.pdf
    • https://static.usrfiles.com/ugd/3eed2b_fd44d83ea68c45f392b34788ea54d44c.pdf
    • https://static.usrfiles.com/ugd/136d07_fb3f2038db224d0d94a0319c84777548.pdf
    • https://static.usrfiles.com/ugd/b8c837_c3a0684e3e0f4a4e8832b2a17d4eba19.pdf
    • https://static.usrfiles.com/ugd/234f58_4e88fd9a89ef46d3bceb25c58476e897.pdf
    • https://static.usrfiles.com/ugd/b8c837_92488ebecacd42a48bb8969f0ff89d03.pdf
    • https://cdn.shopify.com/s/files/1/0437/9312/1442/files/work_cited_mla_format_owl.pdf
    • https://cdn.shopify.com/s/files/1/0437/7670/4669/files/tojarunapalozupujuxomem.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_off00008175.bin
cbf05aceb30ba0405c8a98c56800516ffe0bd420d299291df833a71808e875b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x8175 4896 bytes
font_01_sfnt_off000091f3.bin
e947cdb3f5eba8dc7a1f30e0030e5147d365a9c065ef978dfc2fd48bf273d585
pdf-font-stream PDF embedded font (sfnt) at offset 0x91F3 10388 bytes