Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c43ff0ac75cbb76…

MALICIOUS

PDF

43.6 KB Created: 2020-08-17 14:37:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f81a7f2261f267e54503b0dbb3594c5 SHA-1: 6752c8dd6c3b15acdadf70058ce7c70da93e4820 SHA-256: 7c43ff0ac75cbb767c86579ca6bc0efb9a744e2b2907b1939f082fc5f935e4b1
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=photo+to+cartoon+animation+software+free'. This indicates a social engineering attempt to trick users into visiting a malicious site, likely for further exploitation or credential harvesting. The document body, though heavily obfuscated, contains references to the same URL and other Shopify links, reinforcing the lure. The presence of a link farm heuristic further suggests a campaign to distribute malicious content.

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=photo+to+cartoon+animation+software+free
    • http://files.littleeedenfarm.com/uploads/1/3/2/6/132681144/mizifix_wagogimetoge.pdf
    • https://cdn.shopify.com/s/files/1/0435/8445/4817/files/71203242629.pdf
    • https://cdn.shopify.com/s/files/1/0433/3705/6414/files/73493798918.pdf
    • https://cdn.shopify.com/s/files/1/0428/9930/8700/files/bhagavad_gita_telugu_explanation.pdf
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/21917903453.pdf
    • https://cdn.shopify.com/s/files/1/0433/0812/2270/files/10328586739.pdf
    • https://cdn.shopify.com/s/files/1/0434/0711/4391/files/kejor.pdf
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/53477289002.pdf
    • https://cdn.shopify.com/s/files/1/0431/5637/3659/files/42142981400.pdf
    • https://cdn.shopify.com/s/files/1/0436/7355/1001/files/57683721288.pdf
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/sidijefaka.pdf
    • https://cdn.shopify.com/s/files/1/0439/5103/0430/files/anansi_stories.pdf
    • https://cdn.shopify.com/s/files/1/0437/6998/7223/files/fosoraxede.pdf
    • https://cdn.shopify.com/s/files/1/0432/4674/7805/files/8740819721.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_off00006dde.bin
aaa543fcbd44c3b325f562ad9152a10e51b2229e5c27cf16d1bb16dc439af96f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDE 5184 bytes
font_01_sfnt_off00007f61.bin
a5193d2211bde32ec6992e6933665f13eeb859c550de36e2a7fd4c8db2a1693e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F61 10060 bytes

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