Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b909b067da3290e…

MALICIOUS

PDF

56.8 KB Created: 2020-08-23 16:40:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 947be0781defe97460c70744a62e97e7 SHA-1: 8df136670e9858e80f81abadea3b9416f63b54e1 SHA-256: 3b909b067da3290ef1ccc7b59c27fcc4e846545f8e92b8153aa97411173d32fb
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic identifying a malicious redirector. The primary malicious URL is https://ttraff.ru/pify?keyword=jb+background+hd+new+2018, which is likely used to funnel users to a malicious site. The document body contains garbled text but also includes the malicious URL and several benign-looking PDF links hosted on Shopify, suggesting a link farm or redirection tactic.

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=jb+background+hd+new+2018
    • http://files.suffolktrainstation.com/uploads/1/3/1/3/131379099/7810936.pdf
    • http://xejedibi.briteinitiative.org/uploads/1/3/2/8/132814930/8c23221dd.pdf
    • http://files.ionajonesillustration.com/uploads/1/3/0/9/130969885/1797b.pdf
    • http://files.rubywallis.com/uploads/1/3/0/7/130775690/mivamawire.pdf
    • http://zuxumomup.diplomainprofessionalstudies.com/uploads/1/3/2/6/132680981/zoleve.pdf
    • http://jbeditzcom.com/picsart-manipulation-photo-editing/
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/3583/6063/files/cubic_spline_matlab.pdf
    • https://cdn.shopify.com/s/files/1/0432/9373/7118/files/developing_critical_and_creative_thinking_skills.pdf
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/soft_skills_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/4676/3677/files/tezulibiterofamekape.pdf
    • https://cdn.shopify.com/s/files/1/0438/1091/4466/files/vapegewosugerel.pdf
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/76552463033.pdf
    • https://cdn.shopify.com/s/files/1/0432/9917/6612/files/rationalizing_the_denominator_worksheet_doc.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000634b.bin
ffeb89eaad713c9717385028f79c9757067aafb2c2382ea8cbab0e6efe35a425		 pdf-font-stream PDF embedded font (sfnt) at offset 0x634B 6744 bytes
font_01_sfnt_off00007433.bin
92b0a06f480e82c31bc5d046869445b2b402cb719a7d19d268810351aa404812		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7433 5796 bytes
font_02_sfnt_off000087f7.bin
71e316bebf39209ac060a0650859062fc2566cbcf83e70c30b98ebde6bc660e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87F7 5228 bytes
font_03_sfnt_off00009b6c.bin
402fabb3d80306af16be2e4e5acb83037a6bafb5cb9bcef68263350ce9357853		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B6C 10260 bytes
font_04_sfnt_off0000bed0.bin
04e4216e2c0039b807b13bb2b3a6bc5ef7ff4a8f660b82a9e895f57f8359cb0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBED0 16704 bytes

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