Malicious PDF — malware analysis report

Static analysis result for SHA-256 32a97d44d3827920…

MALICIOUS

PDF

36.6 KB Created: 2020-08-20 07:39:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cf0a2d26f6b866294eab828a4155ce1 SHA-1: f99665b944ecc873d8e280a2cc9152746150bf91 SHA-256: 32a97d44d38279200f1bed13a6b2ae3e915475656447760585182790d4c0a94b
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document also functions as a link farm, directing users to numerous PDF files hosted on Shopify, with one of these links also identified as a potential malicious redirector. The primary lure appears to be educational content, specifically 'Milady esthetics chapter 9 workbook answers'. No scripts were extracted, but the presence of malicious redirectors and link farming indicates a social engineering attack aimed at driving traffic to malicious sites.

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/pify?keyword=milady+esthetics+chapter+9+workbook+answers
    • http://fimujok.leavesbyjenney.com/uploads/1/3/1/0/131070450/kitew.pdf
    • https://cdn.shopify.com/s/files/1/0450/9204/4963/files/zujupi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8833/7313/files/menabikukogomedam.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0314/files/chemistry_semester_1_final_exam.pdf
    • https://cdn.shopify.com/s/files/1/0437/7988/3170/files/33081911311.pdf
    • https://cdn.shopify.com/s/files/1/0434/0701/6103/files/vebosukinowojutaga.pdf
    • https://cdn.shopify.com/s/files/1/0430/3778/6266/files/latikazusuwutuvagewemaxu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/86698589550.pdf
    • https://cdn.shopify.com/s/files/1/0433/7080/7461/files/abolition_of_transatlantic_slave_trade.pdf
    • https://cdn.shopify.com/s/files/1/0464/1226/7688/files/27452940131.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/23953682430.pdf
    • https://cdn.shopify.com/s/files/1/0431/1711/7589/files/semir.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000044b1.bin
0e75e41795d5d1ce464a2e6bc7491af06ff3177006846fa1721545a561cb6a73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44B1 5508 bytes
font_01_sfnt_off0000576d.bin
fe320da7ad883ac512b9255e858388048617f869d6a551d19424881a82182433		 pdf-font-stream PDF embedded font (sfnt) at offset 0x576D 9432 bytes
font_02_sfnt_off00007736.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7736 4324 bytes

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