Malicious PDF — malware analysis report

Static analysis result for SHA-256 57f178c60444d529…

MALICIOUS

PDF

41.8 KB Created: 2020-08-31 06:33:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cca9ecf557048220a49812240f7c828 SHA-1: 80dfebdf61db195d552b7bcfc45260d3e2a503d1 SHA-256: 57f178c60444d5294a5b753f167bfa8e5c2d6693fd4ae44bcd78b721c448f846
120 Risk Score

Malware Insights

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

The PDF file contains a link farm of numerous PDF documents hosted on Shopify and other domains, with one primary link pointing to a known malicious redirector. This suggests a social engineering attempt to lure users to malicious infrastructure. No scripts were extracted, and the document body was heavily obfuscated, but the presence of the redirector link and the link farm strongly indicate a malicious intent to direct users to 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.cc/wix?keyword=three+cueing+systems
    • https://cdn.shopify.com/s/files/1/0437/7441/0901/files/22108892235.pdf
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/isometric_view_angle.pdf
    • https://cdn.shopify.com/s/files/1/0432/8243/2160/files/burkhalter_holding_ag_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0432/6732/6110/files/70721661391.pdf
    • https://static.usrfiles.com/ugd/6cfc61_a541bb983f5144e2881fbff1a2b64ca0.pdf
    • https://static.usrfiles.com/ugd/e2c6c1_659c570347df48cdbcd9af17e7114184.pdf
    • https://static.usrfiles.com/ugd/b8c837_e743e309f0464d0c8406f27b12852f59.pdf
    • https://static.usrfiles.com/ugd/cbe7f7_1edb0d14b39d4083a0b1c8bc7acc9e1a.pdf
    • https://static.usrfiles.com/ugd/9e53d4_ea699c0c67cd47ef83402ab4a8451bcb.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97253363073.pdf
    • https://cdn.shopify.com/s/files/1/0433/9122/1911/files/artritis_reumatoide_juvenil_sistemica.pdf
    • https://cdn.shopify.com/s/files/1/0434/0993/2440/files/34909272875.pdf
    • https://cdn.shopify.com/s/files/1/0437/2722/4986/files/wow_macros_guide_paladin.pdf
    • https://cdn.shopify.com/s/files/1/0430/9647/3749/files/alif_lam_mim_para.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_off000066ca.bin
25e6e15585e7954f88dd82105cc09e1db65ae05928ca86af2c27384005673381		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66CA 5020 bytes
font_01_sfnt_off000077c2.bin
f3ac56775c71bc2539c7c4bdd41ad105a5e28d5aa6ef0dd28f4e6538e65315f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77C2 10256 bytes

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