Malicious PDF — malware analysis report

Static analysis result for SHA-256 d11b494722bec892…

MALICIOUS

PDF

43.6 KB Created: 2020-08-29 22:22:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 514fd0ab8f0f8b3a147939aa061d0b8b SHA-1: 3380a36033bca851de236b667d9c13ab39389849 SHA-256: d11b494722bec892d6d596c6d0e4f433da8838ce87d370145a15ccf6ba5ba953
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links directs to a known malicious redirector at ttraff.com, which is likely intended to lead the user to a malicious payload or phishing site. The document body, though heavily obfuscated, contains the target URL, suggesting a lure related to 'neko atsume cat guide 2019'.

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=neko+atsume+cat+guide+2019
    • https://cdn.shopify.com/s/files/1/0430/2117/2897/files/zudozu.pdf
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/pufowukedinonija.pdf
    • https://cdn.shopify.com/s/files/1/0436/1617/4243/files/47215977179.pdf
    • https://cdn.shopify.com/s/files/1/0435/1547/8176/files/22519851858.pdf
    • https://cdn.shopify.com/s/files/1/0435/4277/3914/files/acute_myocardial_infarction_treatment_protocol.pdf
    • https://cdn.shopify.com/s/files/1/0429/6101/0842/files/bodybuilding_exercise_chart.pdf
    • https://cdn.shopify.com/s/files/1/0435/4614/9023/files/48907852401.pdf
    • https://static.usrfiles.com/ugd/5360f8_516492cfc5334d4b8dd3ba8e11a524a5.pdf
    • https://static.usrfiles.com/ugd/b8c837_7561fce18c124605ba7d43927f70ad2c.pdf
    • https://static.usrfiles.com/ugd/74a852_6b57ab6efe0c42e2a406d2ddaeeca5a4.pdf
    • https://static.usrfiles.com/ugd/b65acf_23fa779745d7417887f4d10cc99643f1.pdf
    • https://static.usrfiles.com/ugd/0cd3a8_eded6f4176f94e4883f747b2afe05cb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_0202632f4e124db693db91f62f856c52.pdf
    • https://static.usrfiles.com/ugd/8de238_d7ca6d72b9b541689b828cf41f9bd178.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_off00006b56.bin
bdc82dcd75e669235677a8a25dea159bc7d71afb07837f5c8f45089e8cb97a6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B56 5644 bytes
font_01_sfnt_off00007e8d.bin
89ba02da1eb06de6c1cd388e84378fa22eb4edf55f1c096f91dc9dc941604a5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8D 10172 bytes

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