Malicious PDF — malware analysis report

Static analysis result for SHA-256 47dd7ced764dc985…

MALICIOUS

PDF

44.3 KB Created: 2020-08-17 09:07:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53e4e86f113cdf025222fcdfdd6569ba SHA-1: 9a2b8c4552065d55ad70e4b854e6f60187ff0f5a SHA-256: 47dd7ced764dc985084d8e38cfc94cff9241c33de963c3a34e37880794432873
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to known malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of external PDF links, many hosted on Shopify, which are likely part of a link farm. The document body contains text related to 'bubble shooter game play' and a URL pointing to 'ttraff.ru', suggesting a lure to a malicious site. No scripts were extracted from this sample.

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.ru/pify?keyword=bubble+shooter+game+play
    • http://sateko.hospitalityministries.org/uploads/1/3/1/6/131636725/bfe7e87c9.pdf
    • http://files.caninesandkilos.com/uploads/1/3/1/4/131453990/gamufedefuto-basumibow.pdf
    • http://suvosone.chewinggumchains.com/uploads/1/3/1/4/131438397/bf8a2dff0e14.pdf
    • http://files.lakewoodpca.net/uploads/1/3/0/8/130874163/texolozavoseno.pdf
    • http://files.jamiegellingsmediablog.com/uploads/1/3/0/7/130740573/sebapidef.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/tevewitowizazuf.pdf
    • https://cdn.shopify.com/s/files/1/0434/8264/4642/files/vozuvem.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/35682166417.pdf
    • https://cdn.shopify.com/s/files/1/0436/5369/3593/files/autosar_sws_can_network_management._4._3.pdf
    • https://cdn.shopify.com/s/files/1/0434/0845/7877/files/73425206263.pdf
    • https://cdn.shopify.com/s/files/1/0436/6788/2134/files/suzuki_df140_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/4445/1990/files/applied_paleontology.pdf
    • https://cdn.shopify.com/s/files/1/0435/2606/2239/files/27809510728.pdf
    • https://cdn.shopify.com/s/files/1/0433/7444/4694/files/79089714392.pdf
    • https://cdn.shopify.com/s/files/1/0433/8712/5927/files/48881345514.pdf
    • https://cdn.shopify.com/s/files/1/0437/8486/3893/files/cat_battery_charger.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_off00006ed0.bin
655e7f9473de121ec908b8a8c81ff68b15b7ccbbb9ccfaf5985662e5c3b4ee8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED0 5524 bytes
font_01_sfnt_off00008176.bin
3242b6077f023ab60e85a0b219c1ba75bf4937eb3742ef922aa0cc3980673599		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8176 10276 bytes

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