Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5eec85fac71bea0…

MALICIOUS

PDF

37.2 KB Created: 2020-09-04 12:54:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82b6f1e04cb6222c0caa4ed1d6dfb391 SHA-1: d10ab4c98675cbc0cfdd1507e30bccb67431ceae SHA-256: e5eec85fac71bea09f76f0e1536d46ad86655f613e121b4f7f60a0ed3b86455e
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 external PDF files hosted on Shopify and static.usrfiles.com. One prominent link, 'https://ttraff.me/wix?keyword=odia+new+movie+all+dj+song', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. No scripts were extracted from this sample.

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.me/wix?keyword=odia+new+movie+all+dj+song
    • https://cdn.shopify.com/s/files/1/0430/8008/9760/files/sabowikitanuk.pdf
    • https://cdn.shopify.com/s/files/1/0440/6103/2598/files/99618653197.pdf
    • https://cdn.shopify.com/s/files/1/0435/6171/3813/files/water_jet_cutting_seminar_report_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/1136/7331/files/84923668756.pdf
    • https://cdn.shopify.com/s/files/1/0435/7075/7791/files/auma_actuators_wiring_diagram.pdf
    • https://static.usrfiles.com/ugd/b8c837_e2aa5f7c293f40e8a49fb8af0b84d0d0.pdf
    • https://static.usrfiles.com/ugd/1ebe14_b5571d27a349410bb094067b4ee101dc.pdf
    • https://static.usrfiles.com/ugd/756799_0903851a5239433b9ec27af7537811ed.pdf
    • https://static.usrfiles.com/ugd/b8c837_fcbed99362e3420ea838c0c4bbed583e.pdf
    • https://static.usrfiles.com/ugd/9219f8_8c53d9a013cd42a48af542396ccb1b7d.pdf
    • https://static.usrfiles.com/ugd/bf57b5_57e8fb13ce3a48c58371c7903efcb7c3.pdf
    • https://static.usrfiles.com/ugd/493135_7b9bc05df96842f4a7e2495047861cc2.pdf
    • https://static.usrfiles.com/ugd/b7ed05_c992abda1c8a411d9150bb54cbd59952.pdf
    • https://static.usrfiles.com/ugd/3b7182_f2229454dc8f422982d315b84be06ffd.pdf
    • https://static.usrfiles.com/ugd/f08e01_20c0094a1bf24142a49ab174bafa901c.pdf
    • https://static.usrfiles.com/ugd/8c7d07_d59e8822b10b4a0db9eff19c44c79d81.pdf
    • https://static.usrfiles.com/ugd/c345b0_5ee3087fd87a400bac7c743ecbfae09f.pdf
    • https://static.usrfiles.com/ugd/34ec99_a9346374d4be449485a2d3f7b241068d.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_off00005258.bin
94a26ceb580e5a9824f364a27759d777eb39c086de8df5e251b49c0ca259faa2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5258 5304 bytes
font_01_sfnt_off0000646b.bin
264ae3de81a2efaf4cb8a76a427c64e0ed533f8103ee01a106cf95edcafab803
pdf-font-stream PDF embedded font (sfnt) at offset 0x646B 10904 bytes