Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec7f2ed641434e8b…

MALICIOUS

PDF

42.5 KB Created: 2020-08-30 00:09:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73806afe2ecf6620cf0e9c74693182d4 SHA-1: f771ed78c5660814c9937ec442422004558c1a4e SHA-256: ec7f2ed641434e8b607d86eeb940853b71cb83eb90e0d0889b7435e0b1887483
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 of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.com/wix?keyword=silence+on+the+wire', is identified as a malicious redirector. The document body, though heavily obfuscated, contains the title 'Silence on the wire' and the same malicious URL, suggesting a lure to a malicious site.

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/wix?keyword=silence+on+the+wire
    • https://cdn.shopify.com/s/files/1/0434/0845/7877/files/somovenusipepuvugop.pdf
    • https://cdn.shopify.com/s/files/1/0434/8733/0464/files/sujazonidovijobopuvuka.pdf
    • https://cdn.shopify.com/s/files/1/0430/4273/4229/files/tewijivelafisapusi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5349/8014/files/gizitagotesokakuzuzileko.pdf
    • https://static.usrfiles.com/ugd/10e3af_0f6e54fe90544f98b360e47fbe9a3f3e.pdf
    • https://static.usrfiles.com/ugd/2813e2_bb9571fdd1f14a05ac479b987c980c98.pdf
    • https://static.usrfiles.com/ugd/b8c837_5986915969f74969a5492d46c90c2f72.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/26958905834.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/troybilt_horse_tiller_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0446/3896/1827/files/asking_for_help_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/3406/6594/files/85562440070.pdf
    • https://cdn.shopify.com/s/files/1/0433/4639/5304/files/topemavejuvidowes.pdf
    • https://cdn.shopify.com/s/files/1/0432/5592/2856/files/bending_light_experiment.pdf
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/tofuwiladoxamodirodiwisu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6309/9040/files/noxumagunoluz.pdf
    • https://cdn.shopify.com/s/files/1/0437/0530/3205/files/tecnologia_da_informao_e_comunicao_na_educao.pdf
    • https://cdn.shopify.com/s/files/1/0435/3458/1919/files/widemoj.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_off00006b5b.bin
74916763a87c44b9a383bb6789eaaefff7e2c19ad91f7959936822b0f51948c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5B 4692 bytes
font_01_sfnt_off00007b53.bin
0f119a6939dce202314fdce80bc897339b8241702771c9256b7f83cf5da46657		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B53 9920 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.