Malicious PDF — malware analysis report

Static analysis result for SHA-256 395240502122db7f…

MALICIOUS

PDF

39.0 KB Created: 2020-08-29 20:17:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 39191b262f8a80fd2c9ea82a49e63934 SHA-1: f100cbbb7899275695007671866954b74d1ba228 SHA-256: 395240502122db7f20b4e5bbb64894a0b4303935b2e9dc43c6019648b359cf02
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF contains a link that redirects to known malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, suggesting a link farm or redirection strategy. The SE_CALLBACK_LURE heuristic suggests a phishing or scam pretext, likely to trick users into clicking the malicious link. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=hb600-24b+wiring+diagram
    • https://static.usrfiles.com/ugd/b8c837_70c277f22ac2468082653bf955e79bc0.pdf
    • https://static.usrfiles.com/ugd/b8c837_eb86dd28dddd431db3c7d90919001e36.pdf
    • https://static.usrfiles.com/ugd/b8c837_3b80ef9bd19149168cb1e1563c759c2e.pdf
    • https://static.usrfiles.com/ugd/b8c837_fdac5216c419411fbf86e9ccc374eabb.pdf
    • https://static.usrfiles.com/ugd/b8c837_b576d709000b491d8c8a9ee063ba444f.pdf
    • https://static.usrfiles.com/ugd/b8c837_1866dd4e82ba4919bbc9956aab0c2f54.pdf
    • https://static.usrfiles.com/ugd/b8c837_2cef71c938cc471db271b92371283acb.pdf
    • https://static.usrfiles.com/ugd/b8c837_1bb2aa7339834f3a8358bd9568f5b3e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_1bb02df74e0c4388b2052b7cbe492e65.pdf
    • https://cdn.shopify.com/s/files/1/0430/4338/9597/files/darasewepiwebavuto.pdf
    • https://cdn.shopify.com/s/files/1/0429/5216/3481/files/sikaxilovogikikotokiginag.pdf
    • https://cdn.shopify.com/s/files/1/0447/6433/2181/files/knife_party_give_it_up.pdf
    • https://cdn.shopify.com/s/files/1/0438/8398/7096/files/foludinagumuzazoxad.pdf
    • https://cdn.shopify.com/s/files/1/0430/9952/1185/files/logo_game_answers_level_1_ea.pdf
    • https://cdn.shopify.com/s/files/1/0428/9177/2063/files/25130249156.pdf
    • https://cdn.shopify.com/s/files/1/0432/1899/3320/files/kefisi.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_off000059aa.bin
d8b058ae5d2139eaf527afd5d2b587828e19074edfb89149b5c1b5a3c129e08d
pdf-font-stream PDF embedded font (sfnt) at offset 0x59AA 5676 bytes
font_01_sfnt_off00006cef.bin
80dfd51a75e625a2ec59b7e60bc8a4c22e606e1bdf240b22d1925f2bf88fef23
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CEF 9976 bytes