Malicious PDF — malware analysis report

Static analysis result for SHA-256 34c33da85726f676…

MALICIOUS

PDF

51.0 KB Created: 2020-08-29 20:02:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 515870de60f23c02b88b5859f922bc67 SHA-1: 39eda5c41d280393606500690e0beae48d392246 SHA-256: 34c33da85726f676d690f61e46af6217e82413abba8d6e9a3b14f59e66338cc7
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with the primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to contain text related to a 'Tekken 7 jin guide', suggesting a lure to entice users to click on the malicious links. The heuristic firings confirm the presence of a malicious redirector link and a link farm within the PDF.

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.ru/wix?keyword=tekken+7+jin+guide
    • https://cdn.shopify.com/s/files/1/0428/6434/5255/files/fibope.pdf
    • https://cdn.shopify.com/s/files/1/0429/6910/4540/files/tixoguvesilofala.pdf
    • https://cdn.shopify.com/s/files/1/0430/8667/6117/files/14573857843.pdf
    • https://static.usrfiles.com/ugd/e3ff21_9c636b99409f452398a86523ce9d0369.pdf
    • https://static.usrfiles.com/ugd/c5d40f_066f327eabf14160813a2ca321e37019.pdf
    • https://static.usrfiles.com/ugd/b8c837_fde0e5f9ecf94f0f8fa19f126ef7d74a.pdf
    • https://static.usrfiles.com/ugd/b8c837_175f96dd976f40d58580415c47c74b16.pdf
    • https://static.usrfiles.com/ugd/b8c837_a3b7f89ebf664e7781ebe8447bac87b9.pdf
    • https://static.usrfiles.com/ugd/b8c837_c70c64c97a5442d1a8edad5b0fde93f0.pdf
    • https://static.usrfiles.com/ugd/b8c837_3aad2279b46043f08493f4e1697926ed.pdf
    • https://static.usrfiles.com/ugd/b8c837_fcc17a7272924eab8106535be1aeb6b5.pdf
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/41852548363.pdf
    • https://cdn.shopify.com/s/files/1/0435/5247/3243/files/l_amnagement_du_territoire.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/release_notes_jira_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/34857068248.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_off00007cfe.bin
a8640cb23b15ac802f89dd0648c07b7ad030d8b62c5f78624c3814794ace58c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFE 1684 bytes
font_01_sfnt_off00008562.bin
640f12f83c4f1dae4b249dbc14a374b7b30d4dadd515e680ed2a3077d1ac0de0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8562 4644 bytes
font_02_sfnt_off00009555.bin
a6fe885ec49c36bf32959065f831d112a716034c8c0fad052a3042c0f86075a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9555 13380 bytes

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