Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc0c242f5fd8ae4a…

MALICIOUS

PDF

50.0 KB Created: 2020-09-01 02:03:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6686509c5d7a7f65d70ebec86389d726 SHA-1: 30c32eab1d5adcf88453cb3400e83bb62108e13d SHA-256: fc0c242f5fd8ae4a2801cc950f4054bf545d7926aeb368564e06c8881f6c29f7
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing for a PDF link farm. One of these links points to a known malicious redirector. The document body contains garbled text but also includes the malicious redirector URL, suggesting an attempt to lure users to malicious content. The presence of numerous external PDF links indicates a potential SEO poisoning or redirection attack.

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.cc/wix?keyword=p+name+status+video++mirchistatus
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/airbrush_techniques_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0437/0880/9384/files/improving_boiler_efficiency.pdf
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/fobanaxaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/6993/1673/files/asterix_y_los_pictos_gratis.pdf
    • https://static.usrfiles.com/ugd/ae15ca_c695d9235fe94f27a789a174c0368a3b.pdf
    • https://static.usrfiles.com/ugd/d4a9d6_2310ab1562d8406e985a6a7faaa7fe6a.pdf
    • https://cdn.shopify.com/s/files/1/0431/5866/7415/files/duzusu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7670/5690/files/design_patterns_explained_2nd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0439/1131/5611/files/votonudasu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/vidas_3_biomerieux.pdf
    • https://cdn.shopify.com/s/files/1/0438/4518/9797/files/taruvi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/nelly_fortado_all_good_things.pdf
    • https://cdn.shopify.com/s/files/1/0437/0091/2278/files/50906737119.pdf
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/53460134803.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_off00008409.bin
e2f7b6b1405297307b9f51010718d90d497040d53dfddbe9bdd6585fd5b97fd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8409 5208 bytes
font_01_sfnt_off0000959b.bin
cde801a5fcb274b71080d8b13d6238f3588a189a48533430b5de0ee9469fea44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x959B 11796 bytes

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