Malicious PDF — malware analysis report

Static analysis result for SHA-256 59d55f784bfba698…

MALICIOUS

PDF

69.0 KB Created: 2020-08-29 23:58:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 408d2c1c5b0121babf57571a152367c7 SHA-1: 6d005df05fc4acc89e97365d18bb7993fc17bd64 SHA-256: 59d55f784bfba6987a29295cc0bd6187333b619c904c7cb58a0e30416345c173
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to Shopify-hosted PDF files, suggesting a link farm for SEO manipulation. One of these links, 'https://ttraff.ru/wix?keyword=if+i+lose+myself+camren+chapter+16', is identified as a known malicious redirector. This indicates an attempt to lure users to malicious infrastructure, likely for further exploitation or phishing.

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/wix?keyword=if+i+lose+myself+camren+chapter+16
    • https://cdn.shopify.com/s/files/1/0430/7812/3669/files/medogesevozusume.pdf
    • https://cdn.shopify.com/s/files/1/0431/7675/5349/files/change_font_in_latex.pdf
    • https://cdn.shopify.com/s/files/1/0430/4227/5479/files/muse_butterflies_and_hurricanes_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0437/1342/9655/files/cedula_rfc.pdf
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/84131564619.pdf
    • https://cdn.shopify.com/s/files/1/0427/7259/4844/files/xepajadipepevev.pdf
    • https://cdn.shopify.com/s/files/1/0435/8206/2753/files/daruduni.pdf
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/90646789639.pdf
    • https://cdn.shopify.com/s/files/1/0430/6662/2106/files/tavusijudokurofozo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/baduximigorup.pdf
    • https://cdn.shopify.com/s/files/1/0432/6794/8706/files/wewem.pdf
    • https://cdn.shopify.com/s/files/1/0433/8178/4734/files/wowosawobodozazu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3473/0911/files/how_to_convert_to_excel_in_blueb.pdf
    • https://cdn.shopify.com/s/files/1/0432/1466/7934/files/mumoradafa.pdf
    • https://cdn.shopify.com/s/files/1/0447/0043/4586/files/cessna_421_parts_manual.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_off0000d368.bin
a350eba08ac5d1a1e0ed8a083d17456191c19d5c59ba4a0a2ff816e6e235ee2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD368 5500 bytes
font_01_sfnt_off0000e5f9.bin
8a53db605ee6f9e046bd76ee2bbca0751dd2e2e2f1f07fa106a54101ac4448e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F9 9048 bytes

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