Malicious PDF — malware analysis report

Static analysis result for SHA-256 95f021f523ecb21c…

MALICIOUS

PDF

40.5 KB Created: 2020-08-23 20:32:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bc88d27e9f63d566f9c5a43b6f016d3 SHA-1: eb43d2d8607591abf21a6292deab3db80e8d2b96 SHA-256: 95f021f523ecb21c54677355270548fccae3faa6bfea5d5c9bb7842451088cd7
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the ultimate destination of the malicious payload. The document body, though partially corrupted, contains the same URL and a reference to 'absorption chillers and heat pumps free', suggesting a lure. The presence of many external PDF links, including those hosted on cdn.shopify.com, indicates a broad distribution strategy, possibly for SEO manipulation or to host further 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.cc/pify?keyword=absorption+chillers+and+heat+pumps+free
    • http://files.beckerpark.com/uploads/1/3/2/7/132712514/xuxukisoxoxeb_wupolamosafos_jawejukabodinax_fimaligamidiki.pdf
    • http://xiferimew.calilovewine.com/uploads/1/3/0/7/130740178/1a926.pdf
    • http://wemefel.ovband.org/uploads/1/3/0/7/130738848/simovuw.pdf
    • https://cdn.shopify.com/s/files/1/0432/5264/6050/files/peptic_ulcer_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0432/0293/6992/files/tuvepitedenotajoretezokeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/pajefoxuwijifudikokibapov.pdf
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/anatomy_for_sculptors_understanding_the_human_figure_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/12637432151.pdf
    • https://cdn.shopify.com/s/files/1/0433/9246/7109/files/68499507328.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7962/files/bakakesafevog.pdf
    • https://cdn.shopify.com/s/files/1/0434/7537/0136/files/73561091409.pdf
    • https://cdn.shopify.com/s/files/1/0445/2660/0351/files/alter_ego_5_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/7578/7162/files/dugojebakikojabaxo.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_off0000609f.bin
79e0e20ed630dc1a3bdcf0b0da82a9fcb88e033a748a47e5e2eb8134bf7470c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x609F 5524 bytes
font_01_sfnt_off0000732c.bin
c45c8eba2883fc78862f98316f30e23310cdda7fa8920b6811621bfc6a746eed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x732C 10192 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.