Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c2f207907089982…

MALICIOUS

PDF

44.5 KB Created: 2020-08-22 16:41:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b0fd5a6e406fc289bd32f672332850a SHA-1: b35bfcfd8ee4a31e8bdc0713b3bd10eb1e800550 SHA-256: 4c2f207907089982e80b96084f0f923fa5c8e84e40631181ecdffa1dac8d8dcb
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, specifically pointing to 'https://ttraff.com/pify?keyword=appium+studio+latest+version'. This link is presented in a context that suggests a lure related to software, likely to trick the user into clicking. The document also contains a large number of embedded links, many of which point to benign Shopify URLs, but the presence of the malicious redirector is the primary indicator of malicious intent.

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=appium+studio+latest+version
    • http://files.truelivingcounselling.com/uploads/1/3/0/7/130738939/saravawirijitot.pdf
    • http://ludaf.seibelfamily.net/uploads/1/3/1/6/131636725/surizobujat-rinereva-jagigup-kobeja.pdf
    • http://vununos.wildhoneyonline.co.uk/uploads/1/3/0/7/130776485/kifoseradozowaxum.pdf
    • https://cdn.shopify.com/s/files/1/0435/3880/8991/files/windows_server_2019_cal_licensing_guide.pdf
    • https://cdn.shopify.com/s/files/1/0457/6680/3622/files/ffxiv_heaven_on_high_weapon_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/2418/7549/files/44416893562.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9467339244.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/alphabet_missing_letters_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/theatre_cover_letter.pdf
    • https://cdn.shopify.com/s/files/1/0429/7618/2426/files/rewifalazanizipuwake.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/81924764.pdf
    • https://cdn.shopify.com/s/files/1/0446/0973/2771/files/functional_data_analysis_ramsay_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7348/files/navekidoxasokukegarif.pdf
    • https://cdn.shopify.com/s/files/1/0429/8519/3621/files/cbse_class_10_sample_paper_2020_20_with_solution.pdf
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/80914972192.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_off000063b6.bin
89066dfc017ec74d021dc8981109486a993e503fc5699c2bdaed21ab9b743ec3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B6 5156 bytes
font_01_sfnt_off00007527.bin
ee350776a384bc52a2bafb4d120b0f85757d16e3096396d5427ba8c5276c37ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7527 15056 bytes

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