Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed9f3f5282fbf947…

MALICIOUS

PDF

41.9 KB Created: 2020-08-19 14:44:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b93640f3ff6e2d2c2603ddb268576aa SHA-1: 48d3f7a4adc54e48804e434ea3020ebc89e44352 SHA-256: ed9f3f5282fbf947987f1b4324f31993bb77b7832f000ff2bc08d4e5f39c5c78
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious redirector. This suggests a link farm or SEO poisoning tactic designed to lure victims to malicious infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=dragon%2527+s+dogma+dark+arisen+starter+guide.

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/pify?keyword=dragon%2527+s+dogma+dark+arisen+starter+guide
    • http://files.theskinthatburns.com/uploads/1/3/1/1/131164534/f66e7e2f6bf.pdf
    • http://files.bamablastoff.com/uploads/1/3/1/3/131380895/rewufuki-nuludawow-nulopama.pdf
    • https://cdn.shopify.com/s/files/1/0433/7565/7121/files/every_good_endeavor.pdf
    • https://cdn.shopify.com/s/files/1/0440/5883/7142/files/ccna_voice_portable_command_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/6222/3263/files/94689925120.pdf
    • https://cdn.shopify.com/s/files/1/0432/9105/0137/files/mozajevugi.pdf
    • https://cdn.shopify.com/s/files/1/0431/0777/8711/files/31491842538.pdf
    • https://cdn.shopify.com/s/files/1/0428/8105/6935/files/technical_analysis_explained_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rimudunibodosugesujusuvud.pdf
    • https://cdn.shopify.com/s/files/1/0427/9471/3244/files/lovulopegabelalenozig.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/zeretuxejetaxupuvase.pdf
    • https://cdn.shopify.com/s/files/1/0436/9770/1032/files/zuxiduwiwubesurulejutudij.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_off00006518.bin
17dac9e294de5573756b5af51b475bb1d880c870a9cc80c8e3ce307ba1affa11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6518 5212 bytes
font_01_sfnt_off000076c2.bin
04170839f4b5c8c9310eb52cfdbb30f80d8ec0f5da103aa6db6bd917c4c6eac7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C2 10760 bytes

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