Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e61cbdffd93e3d1…

MALICIOUS

PDF

42.4 KB Created: 2020-08-11 18:27:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a9030d6c90e538997c03c4726a17d78 SHA-1: 9a7bc8e92e8007fd722305af3f22387ab1a81f69 SHA-256: 7e61cbdffd93e3d1df6836ae10f0744ff6c32d347e863548804e6b3fba3872a3
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, but one critical link redirects to a known malicious domain (ttraff.cc). The document body, though heavily obfuscated, contains text related to a restaurant menu and the URL https://ttraff.cc/pify?keyword=annalakshmi+restaurant+menu+pdf, suggesting a lure to disguise malicious activity. The presence of a malicious redirector indicates an attempt to lead the user to a malicious site, likely for phishing or malware delivery.

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.cc/pify?keyword=annalakshmi+restaurant+menu+pdf
    • http://files.homegrownpets.com/uploads/1/3/1/4/131437333/gitedufoxeximimipede.pdf
    • http://files.dript.org/uploads/1/3/1/3/131379439/97f2cb6ece34.pdf
    • http://files.thewrittenremains.com/uploads/1/3/0/7/130775649/ffbd5f1be.pdf
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/rubirekidelaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/8286/6083/files/75713902926.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/wewumegiri.pdf
    • https://cdn.shopify.com/s/files/1/0431/6528/6566/files/ziwoxawobofetuwig.pdf
    • https://cdn.shopify.com/s/files/1/0434/0734/3772/files/metro_line_map_delhi.pdf
    • https://cdn.shopify.com/s/files/1/0436/9927/3896/files/xetaviv.pdf
    • https://cdn.shopify.com/s/files/1/0429/0940/1251/files/26203369087.pdf
    • https://cdn.shopify.com/s/files/1/0430/7383/1073/files/ainsi_parlait_zarathoustra_partition.pdf
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/busomokoruwarajiradu.pdf
    • https://cdn.shopify.com/s/files/1/0435/7485/3793/files/4597661174.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_off000068ee.bin
6b04b216e9bd57c20bae46e64757f7fb1f128b7c2e492c68c940f365074fa89e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68EE 5336 bytes
font_01_sfnt_off00007ae1.bin
dd68a0dfd158d9c642e5447c430d285e73dca5bf2b4a64dc4db0424562f64286		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE1 9840 bytes

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