Malicious PDF — malware analysis report

Static analysis result for SHA-256 be1ddfd27ecc5480…

MALICIOUS

PDF

32.7 KB Created: 2020-08-21 20:03:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ae06ad2e29f83645d5f24f1dd3e5641 SHA-1: 39d7d64bf3605617db596d371e2623be4df9f3b6 SHA-256: be1ddfd27ecc5480e7614eb87d9fde47c706872f035f601cc95dae9337616e89
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Boston terrier coloring sheet' and the malicious URL, suggesting a lure. The presence of numerous embedded links, many pointing to Shopify domains, indicates a link farm strategy, with the primary malicious link being the redirector.

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=boston+terrier+coloring+sheet
    • http://navujer.ellislakeresort.com/uploads/1/3/1/0/131069934/9122437.pdf
    • http://files.busybeesclifford.com/uploads/1/3/0/7/130739202/6537720.pdf
    • http://files.huronmarketing.com/uploads/1/3/0/9/130969645/wigaras.pdf
    • http://tizilozes.stincrowvoden.com/uploads/1/3/0/9/130969280/zagirajukas.pdf
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/96901467192.pdf
    • https://cdn.shopify.com/s/files/1/0430/6229/6725/files/4128342071.pdf
    • https://cdn.shopify.com/s/files/1/0435/4523/1509/files/lodoxitojogemugogabar.pdf
    • https://cdn.shopify.com/s/files/1/0435/2661/9288/files/watchmen_comic_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/9503/9905/files/zosekiduniwoninisolafu.pdf
    • https://cdn.shopify.com/s/files/1/0440/8508/4310/files/mercury_outboard_motor_manuals.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7305/files/permaculture_bill_mollison.pdf
    • https://cdn.shopify.com/s/files/1/0439/1033/2571/files/50340540021.pdf
    • https://cdn.shopify.com/s/files/1/0429/0691/0876/files/searching_and_sorting_algorithms_in_data_structure.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_off00004310.bin
32474cefd99e0a3893fc55064e15b126037f3ae918fc96ce133c2221875a2202		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4310 4900 bytes
font_01_sfnt_off000053b2.bin
a00af6647f10dff39ae2f61abe796cfafea222aa3e9d9b0c6681f42ef84e9078		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53B2 9656 bytes

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