Malicious PDF — malware analysis report

Static analysis result for SHA-256 bde570a69cd352c7…

MALICIOUS

PDF

41.8 KB Created: 2020-08-30 23:10:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: de11a37483d3ecb714e0d8ac1aad3eee SHA-1: b10f771d4422ec5bda19ee21792f26ee244c0816 SHA-256: bde570a69cd352c79af168ac2857a590a68fb8fc1d8c41da64a8543ed8225537
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link pointing to 'ttraff.cc', which is flagged as malicious. Additionally, it hosts a large number of external PDF links, many of which point to benign Shopify domains, suggesting a link farm SEO tactic. The presence of a 'download button' lure further supports the malicious intent. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link within the document.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=laurentiu+damir+price+action+breakdown+pdf
    • https://cdn.shopify.com/s/files/1/0432/6991/4782/files/tutebinukiza.pdf
    • https://cdn.shopify.com/s/files/1/0431/1787/1266/files/vobobuzufumakitakuvoguti.pdf
    • https://cdn.shopify.com/s/files/1/0428/3305/1814/files/38528303569.pdf
    • https://cdn.shopify.com/s/files/1/0440/7505/7302/files/asymmetric_information_definition_economics.pdf
    • https://cdn.shopify.com/s/files/1/0453/4947/0363/files/nakezizipur.pdf
    • https://cdn.shopify.com/s/files/1/0431/7957/3414/files/2003_beachcomber_hot_tub_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/8619/9461/files/shopping_mall_girl_mod_apk.pdf
    • https://cdn.shopify.com/s/files/1/0434/3939/0872/files/gixaz.pdf
    • https://cdn.shopify.com/s/files/1/0448/0398/1463/files/golwala_clinical_medicine_book.pdf
    • https://cdn.shopify.com/s/files/1/0435/8068/6495/files/berapusifevekemuwaki.pdf
    • https://static.usrfiles.com/ugd/c1108c_9f01ac10adbd47499e06129db27cf0ff.pdf
    • https://static.usrfiles.com/ugd/26481d_36dec261e9f446999149d24f5c271618.pdf
    • https://static.usrfiles.com/ugd/b8c837_f4d1795872284ea3bb9cfaff6d7a7e8d.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_off0000609a.bin
578174fcc2ea862b66a89eabe7a76439965b7bae3310768690c07c0a0f5ba79e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x609A 5328 bytes
font_01_sfnt_off000072b4.bin
7cd6f9bb6c3f610e74faddc51364a5c5d1d7a8511f09c411457ee83f6a1c7206		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72B4 12392 bytes

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