Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e233bfd9046ab24…

MALICIOUS

PDF

47.8 KB Created: 2020-08-31 06:15:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b51cfc40fb90bc2078aa21e2d8bdd6b SHA-1: 7877be68e292035355ac3d8b8d86660b4f44834b SHA-256: 2e233bfd9046ab24569c977888c6527e1fe324b3779052f115f27acda8761f89
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, embedding a significant number of external links. One of these links, 'https://ttraff.com/wix?keyword=a+manuscript+of+some+authority', is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a deceptive lure designed to redirect users to potentially harmful 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/wix?keyword=a+manuscript+of+some+authority
    • https://static.usrfiles.com/ugd/b8c837_d286f79abf0644a5884526e690d2d844.pdf
    • https://static.usrfiles.com/ugd/b8c837_935a8343ec544018a841e5ed105e3f9f.pdf
    • https://static.usrfiles.com/ugd/b8c837_d877d489ded745c4a13b317d7fd2fbaa.pdf
    • https://static.usrfiles.com/ugd/5926b4_adc152f53ad7439f92a8abc951f45962.pdf
    • https://cdn.shopify.com/s/files/1/0457/6405/1100/files/riluximitesuf.pdf
    • https://cdn.shopify.com/s/files/1/0429/3646/7623/files/intel_hd_graphics_4400_driver.pdf
    • https://cdn.shopify.com/s/files/1/0432/4828/7912/files/23876684471.pdf
    • https://cdn.shopify.com/s/files/1/0431/1921/4758/files/czk_to_usd_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5671/files/69718555086.pdf
    • https://cdn.shopify.com/s/files/1/0461/3858/9352/files/clash_of_clans_game_play_store.pdf
    • https://cdn.shopify.com/s/files/1/0449/7352/3112/files/kedegun.pdf
    • https://cdn.shopify.com/s/files/1/0433/8964/9054/files/pujatapefudine.pdf
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/58963868721.pdf
    • https://cdn.shopify.com/s/files/1/0430/5335/1066/files/expenses_template_excel_personal.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/thompson_lightning_protection.pdf
    • https://cdn.shopify.com/s/files/1/0435/8491/3565/files/95086284784.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_off00007e41.bin
76caa0079dc646ddcdf7e06966c561a6899ea50a68e213985cf921eb2789f69a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E41 5312 bytes
font_01_sfnt_off00009029.bin
e1f78388f3c65143c2af142843f9fa1fe9b905145aebcf5dbde1cb7d5c42e455		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9029 10012 bytes

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