Malicious PDF — malware analysis report

Static analysis result for SHA-256 200e5853d42bebca…

MALICIOUS

PDF

35.1 KB Created: 2020-08-19 14:55:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6eddd0706c94adfbcfcd0f4fb59d3c9e SHA-1: 54a9c43d7416f4686bccbd48141b2182df010531 SHA-256: 200e5853d42bebcac8846aee15b4a2092141b92b2bd85bea9669d5f29095b3cb
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=paper+moon+sheet+music+free'. The document body, though heavily obfuscated, also contains this URL and references to 'paper moon sheet music free', suggesting a lure. The PDF also contains a large number of embedded links to external PDFs, many hosted on shopify.com, indicating a link farm strategy. 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=paper+moon+sheet+music+free
    • http://files.fllgalaxygears.com/uploads/1/3/1/6/131607163/1522977.pdf
    • http://files.aquariancatholicspiritualcommunity.net/uploads/1/3/2/8/132814958/tezikabal.pdf
    • http://files.pawneecityactivities.org/uploads/1/3/1/4/131406811/sigasorirufajowot.pdf
    • https://cdn.shopify.com/s/files/1/0438/2566/0066/files/xenakevajubovun.pdf
    • https://cdn.shopify.com/s/files/1/0435/2851/9832/files/microbiology_lab_report_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/63140586659.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/41094940945.pdf
    • https://cdn.shopify.com/s/files/1/0437/9885/5837/files/sajoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/rezisel.pdf
    • https://cdn.shopify.com/s/files/1/0434/0885/1101/files/agnathavasi_bgm_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/giwapezi.pdf
    • https://cdn.shopify.com/s/files/1/0440/8786/9592/files/rumabapis.pdf
    • https://cdn.shopify.com/s/files/1/0435/5316/1367/files/xapukavefisoxixox.pdf
    • https://cdn.shopify.com/s/files/1/0440/5913/2056/files/beware_of_pity.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_off00004a63.bin
d5a9595776dfff32ca503f690755cbd41e48cbfa095a0a056aa01344d0df865d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A63 5224 bytes
font_01_sfnt_off00005bfc.bin
1f572594b0da840c68038326abc251106fbbd28794fa5e224afa62092b063297		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BFC 10428 bytes

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