Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c8df42e1e8c8433…

MALICIOUS

PDF

41.3 KB Created: 2020-08-06 22:40:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c6daaa32459a0a26568ed090e2497ba SHA-1: 2105ea58485febeb8add17d55e603e5b53cbef13 SHA-256: 7c8df42e1e8c84332ea9dd04409612511da196ed0caa68b6041bee1adf66c600
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One prominent link, 'https://ttraff.com/wb?keyword=strategic%20cost%20management%20pdf%20notes', is identified as a malicious redirector. This suggests the document is designed to redirect users to malicious infrastructure, likely for phishing or malware distribution. No scripts were extracted, limiting the analysis of direct payload execution.

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/wb?keyword=strategic%20cost%20management%20pdf%20notes
    • http://files.marylendway.com/uploads/1/3/0/9/130968984/42be619b.pdf
    • http://files.observationsandconclusions.com/uploads/1/3/1/4/131453588/17a0e418a.pdf
    • http://fuzubabub.offthedirtroad.net/uploads/1/3/1/4/131407005/1645806.pdf
    • http://files.shanghaisimultaneousinterpretationequipment.com/uploads/1/3/1/0/131070859/6beb1b.pdf
    • http://files.supportiveimmersion.com/uploads/1/3/0/7/130775363/19a58f844281.pdf
    • https://cdn.shopify.com/s/files/1/0430/3260/8921/files/91474220413.pdf
    • https://cdn.shopify.com/s/files/1/0430/9988/1639/files/nizopenima.pdf
    • https://cdn.shopify.com/s/files/1/0431/9969/2958/files/ain_t_no_sunshine_bass_tab.pdf
    • https://cdn.shopify.com/s/files/1/0434/0505/0021/files/65549939990.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/11725393081.pdf
    • https://cdn.shopify.com/s/files/1/0436/1460/1378/files/lepigigukamopamipuluwom.pdf
    • https://cdn.shopify.com/s/files/1/0434/0567/2597/files/lunefanenulunusobapur.pdf
    • https://cdn.shopify.com/s/files/1/0431/9651/4461/files/check_if_homebrew_is_installed.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/babape.pdf
    • https://cdn.shopify.com/s/files/1/0431/9156/6493/files/boxexoralevukojesaf.pdf
    • https://cdn.shopify.com/s/files/1/0438/2697/0786/files/lange_case_files_emergency_medicine.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_off000063cd.bin
21fedd55248992b3364ab39bfa814af8c8230e4bbe44f6440bb6ba82edc0a0cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63CD 5544 bytes
font_01_sfnt_off00007698.bin
8b11a92ce707182f648a230d467cd7d0ec6f1a064140765d2a6f26615e40e2e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7698 9820 bytes

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