Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1564dddd8b3168e…

MALICIOUS

PDF

45.3 KB Created: 2020-08-28 22:55:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63cc4adb5c8ea8774c113249f1a00bff SHA-1: 95591cde69d37d0b29ae13aef79f8f103c56ccf3 SHA-256: b1564dddd8b3168ef3389e86624c231dc1acafd86c2849f74d8776bd7fdc8e27
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a domain known for redirecting to malicious content. The document body itself contains a URL that appears to be a lure for media content, likely intended to trick users into clicking the malicious links. The primary malicious URL identified is https://ttraff.ru/wix?keyword=watch+doctor+house+season+1+online+f.

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=watch+doctor+house+season+1+online+f
    • https://static.usrfiles.com/ugd/b8c837_8a0b6046ad114dd39fdaab408f25ea4d.pdf
    • https://static.usrfiles.com/ugd/b8c837_ea5c6f37434c4358935f830292bf100c.pdf
    • https://static.usrfiles.com/ugd/b8c837_597443141cdd4dd08befe21a0b7ad014.pdf
    • https://static.usrfiles.com/ugd/b8c837_ca7214c10c1b47438db081708e9ff2ce.pdf
    • https://static.usrfiles.com/ugd/b8c837_9096d5bc6f8d4641a47c47d913564d34.pdf
    • https://static.usrfiles.com/ugd/b8c837_5ecbdfdbc4174a6387c801116fd50566.pdf
    • https://static.usrfiles.com/ugd/b8c837_a2321bc5fd6740268309fa9553565b9c.pdf
    • https://static.usrfiles.com/ugd/b8c837_1090561acb51407e9a75fb0299b9f7d8.pdf
    • https://static.usrfiles.com/ugd/b8c837_e74b192ddd1b4f3e8f1d9e7986e3cbf2.pdf
    • https://static.usrfiles.com/ugd/b8c837_2dfd60b35f3e44b8b92fc60f917c2efa.pdf
    • https://static.usrfiles.com/ugd/b8c837_694db9700031449888a3771616668c3d.pdf
    • https://static.usrfiles.com/ugd/b8c837_c7112932bd574c32bcf9b88ad9cab949.pdf
    • https://static.usrfiles.com/ugd/b8c837_7fc11c3a676642a194389e4fea123cbc.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
stream_005_off00008cda.bin
47bc7b3c213f0dff65a6a3ee4c46733249a32ffc58f2f4970f4455ca08bc36ec		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8CDA 17912 bytes
font_00_sfnt_off0000566b.bin
3d86a7dbdb6606671f89c73883c27090789322dcb645cf1ab78f8c89ad8a2fec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x566B 5172 bytes
font_01_sfnt_off0000680d.bin
dd8a927c337008cbf216d4e173855a59c7cc455021c7f6aa7268ab10816e2236		 pdf-font-stream PDF embedded font (sfnt) at offset 0x680D 10760 bytes

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