Malicious PDF — malware analysis report

Static analysis result for SHA-256 d286f0aa50da9f3c…

MALICIOUS

PDF

47.4 KB Created: 2020-09-01 08:50:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 624de8cc5e681da1f95957866862b4ae SHA-1: 8d189d150b343da8f0fcc7a11d9023f68b2ad464 SHA-256: d286f0aa50da9f3ca9a1d78cc22bcb741f51439657338375d123bfe4b5cd4050
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates the presence of numerous external PDF links, likely for SEO manipulation or to host further malicious content. The primary malicious IOC is the redirector URL, which is designed to lead users to harmful sites.

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.link/wix?keyword=asoosama+afaan+oromoo+pdf
    • https://cdn.shopify.com/s/files/1/0435/4398/6340/files/paxuzusoget.pdf
    • https://cdn.shopify.com/s/files/1/0434/1907/4712/files/hot_wheels_6_lane_race_track.pdf
    • https://cdn.shopify.com/s/files/1/0428/7492/9319/files/walobedodisukuvav.pdf
    • https://cdn.shopify.com/s/files/1/0431/4769/0145/files/viludebezebos.pdf
    • https://static.usrfiles.com/ugd/7e0eb0_91762d0886964ac88e9e4e221dae2ca2.pdf
    • https://static.usrfiles.com/ugd/1e32c2_8841f66e87214d469f4abc3316ffdc56.pdf
    • https://static.usrfiles.com/ugd/8d57bd_6762985a73234153a753b0f92ad813e4.pdf
    • https://static.usrfiles.com/ugd/f523c3_c86dcc2294be4700aa49068473267fa6.pdf
    • https://static.usrfiles.com/ugd/b8c837_19dd197a03cd45378ade5602fba8d609.pdf
    • https://static.usrfiles.com/ugd/9421c8_509e1da679e441699660c91723e88ed8.pdf
    • https://static.usrfiles.com/ugd/b8c837_7c5a5f1c004b43e59988ca5e22f8c7ce.pdf
    • https://static.usrfiles.com/ugd/8b49c6_63a90bafbb65463e8a9743688fd9fad6.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006701.bin
e2ac0b1a70962139d946d0e2f0c89b8d8efea0e2cc4d0eacb6dcec1f45e64ebf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6701 4688 bytes
font_01_sfnt_off000076b8.bin
2474d47aa5cb4f661b5245a831bc1ecdb38beee838d39b6660ae438adec53f21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76B8 14364 bytes
font_02_sfnt_off0000a2c5.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2C5 4324 bytes

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