Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f5ed56de3fce864…

MALICIOUS

PDF

43.8 KB Created: 2020-08-31 04:59:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5de05ed86d20f5476f409cc5535fabfc SHA-1: 2c4ad2b2405eb19533645b588f10bee59501867e SHA-256: 7f5ed56de3fce86421a3414aa9d48e5e27deae2843fa6d63eb3471efc27cb7e1
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text that appears to be a lure for a manual, and the embedded link points to a URL with a keyword related to a manual. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, suggesting a link farm or SEO poisoning attempt to distribute malicious content.

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=kent+moore+el+50448+manual
    • https://static.usrfiles.com/ugd/353d00_ca192ec356b845929a2c531380841084.pdf
    • https://static.usrfiles.com/ugd/b8c837_321509018dc64367ae7f55a15431404a.pdf
    • https://static.usrfiles.com/ugd/bb13a2_2ecf986a14fa4aaf8772931bdd9b9304.pdf
    • https://static.usrfiles.com/ugd/76b6de_068e09a7a1f34884a988bd88e605dd47.pdf
    • https://static.usrfiles.com/ugd/11f207_b196d9f7f51b4438b73a2bbbd7d02f47.pdf
    • https://static.usrfiles.com/ugd/10b11f_601ef5a58f004aa6afb9687e4c468db8.pdf
    • https://static.usrfiles.com/ugd/b8c837_67a5ee8dde504dfd8d09119a4d987df7.pdf
    • https://static.usrfiles.com/ugd/111c46_551497e1951841acaa2b96e1550973e3.pdf
    • https://static.usrfiles.com/ugd/cec570_0ecab66bd4c24c5294e95dacd5d79b4f.pdf
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/40820134345.pdf
    • https://cdn.shopify.com/s/files/1/0434/3771/9717/files/check_your_aviation_english_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8034/3967/files/sepsis_pathophysiology_and_clinical_management.pdf
    • https://cdn.shopify.com/s/files/1/0464/8104/7720/files/57393849795.pdf
    • https://cdn.shopify.com/s/files/1/0435/2344/0804/files/xonemawufebedate.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_off00005fd5.bin
4aaba9dfed4a279807d6e2bc45c33fdab650ea6996260e1d62b84d872093ec6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD5 5172 bytes
font_01_sfnt_off00007161.bin
f418d932862bb67660db2ca259fba8b2c3cec53041e6dde08e52d5f515142811		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7161 16020 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.