Malicious PDF — malware analysis report

Static analysis result for SHA-256 e52f0f950e6343ad…

MALICIOUS

PDF

38.6 KB Created: 2020-08-24 20:24:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81dc43e29932ca3be91194b44df6bf91 SHA-1: c7c7faf7c34dd32368ceba08002a482dd03b693e SHA-256: e52f0f950e6343addf808be8e4594886534ad61a41b6edca82ca489b4d16a4b4
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'fall coloring sheets' and the malicious URL, suggesting a lure to disguise the malicious redirection. The presence of a link farm and a malicious redirector indicates an attempt to lead the user to a harmful site, likely for further exploitation or phishing.

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/pify?keyword=fall+coloring+sheets+for+middle+school
    • http://files.kattulafamilyfarms.com/uploads/1/3/0/8/130874620/lazufadexuril.pdf
    • https://cdn.shopify.com/s/files/1/0433/2421/1354/files/born_in_the_usa_piano.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3553/files/sowufokuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdf
    • https://cdn.shopify.com/s/files/1/0436/0785/1171/files/59037023958.pdf
    • https://cdn.shopify.com/s/files/1/0431/2960/2205/files/78170227758.pdf
    • https://cdn.shopify.com/s/files/1/0432/6018/2692/files/19857407725.pdf
    • https://cdn.shopify.com/s/files/1/0428/8207/2732/files/14608688939.pdf
    • https://cdn.shopify.com/s/files/1/0431/0607/4780/files/rutopegutuvujepezezuje.pdf
    • https://cdn.shopify.com/s/files/1/0432/6732/6112/files/calendario_liturgico_2020_chile.pdf
    • https://cdn.shopify.com/s/files/1/0434/7576/3353/files/wasuwoxinapolelix.pdf
    • https://cdn.shopify.com/s/files/1/0431/7793/5005/files/79888724795.pdf
    • https://cdn.shopify.com/s/files/1/0430/8510/3258/files/vodagamanu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2132/6742/files/safolasoruwakijiriwiru.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_off0000587c.bin
14a203d24a7b4e75252bad11a70a63691e298fe67087e8bf7eddc96524f2d1cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x587C 5392 bytes
font_01_sfnt_off00006a9e.bin
460266d852b54dc7a49f9eb8554162cc6fb7dd722c4d00d1751f296921d0a180		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A9E 10276 bytes

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