Malicious PDF — malware analysis report

Static analysis result for SHA-256 562cfcfa6fbaee55…

MALICIOUS

PDF

46.2 KB Created: 2020-08-29 18:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 746b237ffbdb9fa4652b8ffa1a9a9dca SHA-1: ff6f8caa652d31417e84cfa306ea61df96b4779d SHA-256: 562cfcfa6fbaee55452df75012f21de1b5ebaf15b52ddac3f2ea7ead4be9f27e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains text that appears to be related to game guides, likely intended to entice users to click the malicious links. The primary malicious URL identified is ttraff.ru, which is flagged as a malicious redirector.

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=boom+beach+hile+nas%25C4%25B1l+yap%25C4%25B1l%25C4%25B1r+rootsu
    • https://static.usrfiles.com/ugd/b8c837_fa1f752720434b9f9ac4a1fb941376a8.pdf
    • https://static.usrfiles.com/ugd/b8c837_075b78366e3b4df1ba4a09d674a30a43.pdf
    • https://static.usrfiles.com/ugd/b8c837_4fb2f9cbee6942548e2d36f1f208073c.pdf
    • https://static.usrfiles.com/ugd/b8c837_cc392fe176fb4a268201b862ed063098.pdf
    • https://static.usrfiles.com/ugd/3cb679_1640718521274ec985d009d4b87e96b2.pdf
    • https://cdn.shopify.com/s/files/1/0427/8157/3279/files/simeloxeraw.pdf
    • https://static.usrfiles.com/ugd/b8c837_2d111c0e31f545549e6df551deddc367.pdf
    • https://static.usrfiles.com/ugd/a1fb72_2512f7b1816b42f78e2f5151df759af2.pdf
    • https://static.usrfiles.com/ugd/b8c837_5d7761434a5449a08151a7cdeeb9cc05.pdf
    • https://static.usrfiles.com/ugd/4b874d_cb5bb7bbc2b248618133ac8f7ea2a773.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5400/files/votupixajozididubo.pdf
    • https://cdn.shopify.com/s/files/1/0450/5288/7190/files/lic_jeevan_lakshya_brochure.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6165/files/local_anesthesia_systemic_toxicity.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_off0000628f.bin
dd23a0601ec03ab365b30fed502bdbaee99ce1dce65fcb1d8ecda1c32f9f09e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x628F 5496 bytes
font_01_sfnt_off00007511.bin
8db65adc699bed2ed4e99b174e414cace916d9ae25f4e5597e3d94de4d1667c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7511 2116 bytes
font_02_sfnt_off00007eb9.bin
b3532b7d9684d9917d31b5a292e38a81c4b504d110f937f7961b9e028dafe7e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB9 14552 bytes

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