Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f3e197c0405ba52…

MALICIOUS

PDF

38.0 KB Created: 2020-08-19 13:07:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f381ad9a133deb16fdd841622e4e47b SHA-1: e725d6577bf6198e1d110001e7b565d99f14cd4d SHA-256: 3f3e197c0405ba52814da155d080212af4e7ba1c93a717684c19d2b380fa4b73
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.ru/pify?keyword=dod+risk+management+framework+template'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains. The document body, though heavily obfuscated, contains the same redirector URL and a reference to a PDF file on Shopify, suggesting a lure to a malicious site disguised as a document. 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=dod+risk+management+framework+template
    • http://sonovupa.herbierguinee.org/uploads/1/3/0/7/130738765/6123855.pdf
    • http://files.myfaithonfire.com/uploads/1/3/1/6/131606951/6399676.pdf
    • https://cdn.shopify.com/s/files/1/0430/9195/1769/files/pigodabazibinijatixajisef.pdf
    • https://cdn.shopify.com/s/files/1/0441/1362/5240/files/48040916533.pdf
    • https://cdn.shopify.com/s/files/1/0434/2172/8919/files/adobe_premiere_text_effects_templates_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/5562/1031/files/welesozexikogafog.pdf
    • https://cdn.shopify.com/s/files/1/0429/6838/3641/files/conceptual_physics_answers_chapter_3.pdf
    • https://cdn.shopify.com/s/files/1/0432/5123/7032/files/salesforce_report_cross_filter_without.pdf
    • https://cdn.shopify.com/s/files/1/0433/0441/9478/files/vomiting_in_pediatrics.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/75847309826.pdf
    • https://cdn.shopify.com/s/files/1/0438/2746/2301/files/bluestack_app_free_for_ubuntu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sividejujim.pdf
    • https://cdn.shopify.com/s/files/1/0432/8131/8056/files/wijezobot.pdf
    • https://cdn.shopify.com/s/files/1/0431/2635/8173/files/kudibupopi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2027/1259/files/71308538217.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8074/files/wonderful_wonder_by_nathaniel_bassey.pdf
    • https://cdn.shopify.com/s/files/1/0428/1283/3959/files/61795837870.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_off00005741.bin
68b45e9c75c1a66ac2651f81fd323f27375c36bc9c3d1cf09d429b7a7cd31683
pdf-font-stream PDF embedded font (sfnt) at offset 0x5741 5516 bytes
font_01_sfnt_off00006a03.bin
634e2b5ab07bb7f603d02b066cce7172b8aba154a637db416e013e09994663b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A03 9632 bytes