Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e2700e3ef7cfc30…

MALICIOUS

PDF

50.0 KB Created: 2020-08-16 17:45:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58303e474ffd32aa716c145681c865a6 SHA-1: e2316e3c8f24228bc00637e0550773d850e3b6ee SHA-256: 9e2700e3ef7cfc3002d5edeba70e5c464a7a82c0b6218cb5d6a46063d143694c
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF documents. One of these URLs, 'https://ttraff.cc/pify?keyword=behringer+x32+driver+mac', is identified as a malicious redirector. This suggests the document is likely used for SEO manipulation or to distribute malicious content through a chain of redirects. The presence of many benign-looking Shopify links alongside the malicious one is a common tactic to obscure 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.cc/pify?keyword=behringer+x32+driver+mac
    • http://saton.emeliakphotography.com/uploads/1/3/0/7/130776433/takujuxazoku_fokoti_xekuxuvawe_rapajofezapo.pdf
    • http://files.davegrenfell.co.uk/uploads/1/3/1/8/131871569/givetosa_xibizexi_pigizepepegef.pdf
    • http://gajud.divinesoulenergy.com/uploads/1/3/2/7/132712593/e6864991e8.pdf
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/tetafibijomeguri.pdf
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/will_you_be_there_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0439/7786/7422/files/89035978717.pdf
    • https://cdn.shopify.com/s/files/1/0436/4809/0270/files/gevowasixadu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8227/6257/files/aadhar_card_form_in_kannada.pdf
    • https://cdn.shopify.com/s/files/1/0437/9557/9029/files/vertical_axis_wind_turbine_project_report.pdf
    • https://cdn.shopify.com/s/files/1/0429/8830/6586/files/abide_with_me_score.pdf
    • https://cdn.shopify.com/s/files/1/0430/4705/9607/files/amsler_grid_test.pdf
    • https://cdn.shopify.com/s/files/1/0432/0244/5475/files/35618125808.pdf
    • https://cdn.shopify.com/s/files/1/0433/1316/8542/files/80183632565.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_off000081e9.bin
432488df4dc8d4636eb9c1407196e20c3d3076e15063de4213fed37aa309c993		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81E9 5616 bytes
font_01_sfnt_off000094dd.bin
412817db18bd9f1dba5b8aca6d839f8ac087cd27b9c7111e56f0cf6de70159d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94DD 10688 bytes

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