Malicious PDF — malware analysis report

Static analysis result for SHA-256 064ad975ea01a4d6…

MALICIOUS

PDF

42.7 KB Created: 2020-09-02 09:25:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c8cc6634245678b1860b38d3c85e624 SHA-1: e6ba01c8c9b44d339b78aaa11f8e3a64bd727022 SHA-256: 064ad975ea01a4d69e74f9bc86a839e25d90934d4e67833e3d20e060fecfe09d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a critical alert for linking to known malicious redirector infrastructure. The document body, though partially obfuscated, contains URLs that appear to be part of a link farm designed to attract search engine traffic. The primary malicious URL identified is https://ttraff.cc/wix?keyword=cara+membuat+bookmark+pdf+dengan+adobe+reader, which likely serves as a gateway to further malicious content or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/wix?keyword=cara+membuat+bookmark+pdf+dengan+adobe+reader
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/39cb9d_a77c57b338684f20ba79c82f5469ce15.pdf
    • https://static.usrfiles.com/ugd/accd1f_1be772c63acc4b7b9817b0c510e08e67.pdf
    • https://static.usrfiles.com/ugd/77d535_38d259c71c394775a0323673a96ce0c0.pdf
    • https://static.usrfiles.com/ugd/3e5db3_f5438e48c61d451c9baffad19db597b4.pdf
    • https://static.usrfiles.com/ugd/f103bb_2fe267ec53a74d7aa8417d85d3fb99c0.pdf
    • https://static.usrfiles.com/ugd/d902bb_76c10a4863c44f46957c7007332a225c.pdf
    • https://static.usrfiles.com/ugd/edb4a7_47ae911207824f08a13d03bfba79a6ac.pdf
    • https://static.usrfiles.com/ugd/0adedf_8ae808b6356a44e88832fd47faeb07c6.pdf
    • https://static.usrfiles.com/ugd/4d400c_c37ba31dae3c4284b08dfd3603bf521f.pdf
    • https://static.usrfiles.com/ugd/39cb9d_54d0f1f95d5a4e55a3093f28ffdb6ac3.pdf
    • https://cdn.shopify.com/s/files/1/0436/4029/1486/files/qualcomm_atheros_ar9485wb_eg_wireless_network_adapter.pdf
    • https://cdn.shopify.com/s/files/1/0431/2832/4257/files/dawigorixibidit.pdf
    • https://cdn.shopify.com/s/files/1/0462/9505/6545/files/lizarijazu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/vutuxoludukoxiga.pdf
    • https://cdn.shopify.com/s/files/1/0432/3459/0875/files/mizidalaxapazudo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9548/1750/files/46237049605.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068e8.bin
34029a3950402d28b682447f4fbcbfaef853c3dc2c8ad7b7c4595e2505f1da82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68E8 5260 bytes
font_01_sfnt_off00007ab6.bin
ce53bcaba4282995d8ff63e869a4d24c621a3e214759ebf06e6c37450dca59e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB6 10352 bytes

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