Malicious PDF — malware analysis report

Static analysis result for SHA-256 a505d53a21502a43…

MALICIOUS

PDF

44.9 KB Created: 2020-08-12 20:59:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7982e6f8050782aeb27ee6433b45cf75 SHA-1: d9c5d48d50a4e7cb184dc6bf5eff5fa09da82f97 SHA-256: a505d53a21502a43d51e862a7e416692350a6621bf3a50cb81856369880bf7c7
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wb?keyword=abbyy%20pdf%20editor%20full'. This indicates the document's primary purpose is to redirect users to potentially harmful content, disguised as a software download. The presence of a PDF link farm further supports a malicious distribution strategy. No scripts were extracted, limiting the analysis of direct execution behavior.

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/wb?keyword=abbyy%20pdf%20editor%20full
    • http://files.anna-abraham.com/uploads/1/3/0/7/130740211/2675710.pdf
    • http://files.unionpressalters.com/uploads/1/3/0/8/130873902/4efcb9fd3aca.pdf
    • http://files.whypetaeuthanizes.com/uploads/1/3/0/8/130814769/4941356.pdf
    • http://files.cashfromtreasures.net/uploads/1/3/1/3/131379054/doxajegom.pdf
    • https://cdn.shopify.com/s/files/1/0431/3432/0794/files/8544267830.pdf
    • https://cdn.shopify.com/s/files/1/0448/2547/7277/files/adverbs_of_manner_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51220099535.pdf
    • https://cdn.shopify.com/s/files/1/0438/2100/7005/files/fitodufozinamunu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9765/3397/files/nezimamonopamexirejopas.pdf
    • https://cdn.shopify.com/s/files/1/0435/6908/6623/files/wow_beast_mastery_hunter_talents.pdf
    • https://cdn.shopify.com/s/files/1/0437/3273/0017/files/matrix_socolor_chart.pdf
    • https://cdn.shopify.com/s/files/1/0433/2742/2632/files/63919815213.pdf
    • https://cdn.shopify.com/s/files/1/0437/7346/0631/files/lalupezijoxifon.pdf
    • https://cdn.shopify.com/s/files/1/0434/0314/9477/files/47538355670.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_off00005f1f.bin
96f3594473d3429a8614a999f0882bfd705590ba8ef5f137ba9ee7da3febfd6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1F 4876 bytes
font_01_sfnt_off00006fc3.bin
a1dbbb00e7c87283e50434f6083d1dde58cdf362b8b8dc4316b6385d537b55a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC3 23576 bytes

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