Malicious PDF — malware analysis report

Static analysis result for SHA-256 1da3458d31ca30e5…

MALICIOUS

PDF

40.1 KB Created: 2020-09-04 01:09:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41aa1e21cf1b5c542b1f82373de7b9b9 SHA-1: 5b86a596dd05983cd8cb2af6bb2be9df7af55f86 SHA-256: 1da3458d31ca30e59b4f0c7f80c6ac2eab53534e49c494d2ac2b59ba5da49bae
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 pointing to Shopify domains, which is indicative of a link farm. One of these links, 'https://ttraff.me/wix?keyword=lalala+song++neha+kakkar', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this malicious URL, suggesting the primary purpose is to lure the user to this external resource. No scripts were extracted, limiting the analysis of direct payload execution.

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.me/wix?keyword=lalala+song++neha+kakkar
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/rovutalipujosawemi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/conditional_formatting_in_excel_for_all_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0437/1818/1016/files/information_of_dendritic_drainage_pattern.pdf
    • https://cdn.shopify.com/s/files/1/0446/2352/8099/files/37196774972.pdf
    • https://static.usrfiles.com/ugd/eb2f7d_a389e592ed614830926ce49b4ce35758.pdf
    • https://static.usrfiles.com/ugd/b8c837_bead14dc75514ce09023503be16ca3a7.pdf
    • https://static.usrfiles.com/ugd/027f51_1dbf10844b7e4849bf61ea1491643cc3.pdf
    • https://cdn.shopify.com/s/files/1/0437/3459/7784/files/93757029.pdf
    • https://cdn.shopify.com/s/files/1/0428/8646/3647/files/kawodisubem.pdf
    • https://cdn.shopify.com/s/files/1/0436/5497/1557/files/26688371305.pdf
    • https://cdn.shopify.com/s/files/1/0434/2313/7957/files/the_promise_cast.pdf
    • https://cdn.shopify.com/s/files/1/0432/2086/1092/files/new_revised_standard_version_online.pdf
    • https://cdn.shopify.com/s/files/1/0430/1501/2511/files/nojugilulatatew.pdf
    • https://cdn.shopify.com/s/files/1/0434/4948/3420/files/pivanakimedip.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_off00004a9e.bin
5abe56ebadb239cd343c1475e17842a9fac12a59361ba39be2bd39541637e4a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A9E 4612 bytes
font_01_sfnt_off00005a29.bin
ff5197a15b993f48f04a4c6161f84a2632adced9f16f53266516c930fc168673		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A29 14000 bytes
font_02_sfnt_off00008575.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8575 4324 bytes

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