Malicious PDF — malware analysis report

Static analysis result for SHA-256 da3bd406048c44e5…

MALICIOUS

PDF

49.8 KB Created: 2020-08-07 05:40:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69254b136177ab8e9be5c3c0445808e1 SHA-1: 0fda03847f8f60ce0fd90131fda6fab811038a61 SHA-256: da3bd406048c44e56fa4c58983bb16c6df851c0052656bea327aef2d45843832
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though partially garbled, contains text related to 'Search engine marketing definition pdf' and the malicious URL, suggesting a lure to trick users into clicking the malicious link.

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.com/pify?keyword=search+engine+marketing+definition+pdf
    • http://files.tbcwp.org/uploads/1/3/1/4/131453818/6777306.pdf
    • http://files.michellexiao.net/uploads/1/3/2/7/132712222/bavulawa.pdf
    • http://files.trainlikeaprodc.com/uploads/1/3/1/8/131856476/retiweje.pdf
    • https://cdn.shopify.com/s/files/1/0433/1218/5494/files/fafedunolixuwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/9255/7462/files/53007826899.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/iris_dataset_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/3094/4671/files/you_can_win.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tufajotojitumawudawemir.pdf
    • https://cdn.shopify.com/s/files/1/0432/3062/5950/files/lisavazudejadi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6944/8096/files/jeff_buckley_hallelujah_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0433/6241/8846/files/42159196211.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49893706483.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/89779219626.pdf
    • https://cdn.shopify.com/s/files/1/0432/2610/3971/files/90530608947.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_off00008459.bin
ae6e5670b746e670fb36fd285a8af3b5e1dea05562034759ab7b47ccc1b119b7
pdf-font-stream PDF embedded font (sfnt) at offset 0x8459 5528 bytes
font_01_sfnt_off000096f9.bin
b53f250296823bfd351e4a2bcaffc3660d57cb990af874fea2d6c45c5dbf84a6
pdf-font-stream PDF embedded font (sfnt) at offset 0x96F9 10364 bytes