Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d50e05ea7540026…

MALICIOUS

PDF

79.6 KB Created: 2020-09-20 20:55:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9483d42acabb491be6669dcb6b3d928c SHA-1: d9436783e40c7447a57a8ef601a0556fbc0ec4e3 SHA-256: 8d50e05ea7540026362313bf9c80a1b922e012fe7999013a1ae9833e14985cc4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=mts+assay+protocol+promega'. This indicates the document's primary purpose is to redirect users to a potentially harmful site. The file also exhibits characteristics of a link farm, embedding numerous external links, further supporting the malicious redirection 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/wix?keyword=mts+assay+protocol+promega
    • https://7c025819-d471-443f-a75e-333a1df6fde7.filesusr.com/ugd/c618e9_82cbffc54a8140c2a07cdaf9f419ee22.pdf?index=true
    • https://c4b48df4-7e84-454f-921f-21ef8f470ce4.filesusr.com/ugd/7f614e_270ade8991f54a64baed58fcee1732cf.pdf?index=true
    • https://bff600fb-c2e9-419e-a356-269ed3d78a19.filesusr.com/ugd/8a4248_92012e4ac50f443a90572fa95a61d6c0.pdf?index=true
    • https://b41c0c35-b66c-44bb-b501-f5157ae16fe4.filesusr.com/ugd/e3c460_1430630c50e8441ba68d36b53dbd0612.pdf?index=true
    • https://26f42596-fc8e-4eed-b288-be7a29a885e8.filesusr.com/ugd/0f1814_776e9e1bc468440e936180e02a40e969.pdf?index=true
    • https://ef223635-fe2a-418a-af99-efcef166def2.filesusr.com/ugd/b52961_693f22e2b07a4d6ca61a31e9bf01a873.pdf?index=true
    • https://10356b89-29df-4697-b5e7-a52be8add65a.filesusr.com/ugd/ad8f3a_aa4288a31aa241e589363d7b1c58b997.pdf?index=true
    • https://ec49e4ec-2e2d-4765-84ce-6ec5a2e72896.filesusr.com/ugd/493135_bf416ec9f7224bad92c00e7b0b02fb11.pdf?index=true
    • https://fc100173-42b0-467a-955a-06761c905ded.filesusr.com/ugd/1e32c2_4871241f3967436caf61d169646c5f57.pdf?index=true
    • https://99a0c1f9-8985-4dbb-956f-800092bf1ee6.filesusr.com/ugd/1decf9_4f0dfe3cfa834e6fb1708d2c8581e648.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0432/1034/2563/files/manual_de_cargos_opsu_obreros.pdf
    • https://cdn.shopify.com/s/files/1/0431/9186/1410/files/analyzing_literature_the_formalist_perspective.pdf
    • https://cdn.shopify.com/s/files/1/0428/9485/2252/files/90124196958.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3639/files/metaphysical_bible_dictionary_download.pdf
    • https://cdn.shopify.com/s/files/1/0479/3152/3239/files/gatutizifuwin.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_off0000f265.bin
507a94383b9b44e98f535713fab83d176eac69b7eff4be81be60aa108604ebe3
pdf-font-stream PDF embedded font (sfnt) at offset 0xF265 5360 bytes
font_01_sfnt_off000104a5.bin
80b813035a5d0ae3a8f381c9de7654e7804d6964e4693459e2ccd23695965944
pdf-font-stream PDF embedded font (sfnt) at offset 0x104A5 13860 bytes