Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6a8f89a0b628e61…

MALICIOUS

PDF

40.3 KB Created: 2020-08-02 23:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b77eff4f0720c4cf1ee4519d196920f SHA-1: d06d1f9a75d8c90051af3803838f2f7591156b53 SHA-256: e6a8f89a0b628e61e5061631156d2171e409ae69c680b491bf51f615dd66d6cc
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, including a critical redirector link to ttraff.ru. This indicates a link farm or phishing attempt designed to lead users to malicious infrastructure. The document body itself is heavily obfuscated and contains embedded URLs, further supporting the malicious intent of redirecting users. 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.ru/pify?keyword=lowes+cumberland+md
    • http://files.henryhomesconsulting.com/uploads/1/3/1/6/131636726/nonerovi.pdf
    • http://files.whitelionbeauty.com/uploads/1/3/0/8/130814208/fulumipid-nigevopilak-vumibe.pdf
    • http://files.piommiami.org/uploads/1/3/1/4/131454581/b1ab428b.pdf
    • https://cdn.shopif
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/zowimegotunivujonuvezas.pdf
    • https://cdn.shopify.com/s/files/1/0436/1604/3171/files/jarazuxij.pdf
    • https://cdn.shopify.com/s/files/1/0428/6706/4998/files/gibedetolememosewulag.pdf
    • https://cdn.shopify.com/s/files/1/0439/1511/6696/files/pibivimunesefal.pdf
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/60765298269.pdf
    • https://cdn.shopify.com/s/files/1/0434/9696/4261/files/15372295550.pdf
    • https://cdn.shopify.com/s/files/1/0438/1910/6461/files/twitch_animated_emotes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9842/3967/files/30250917401.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nakawefefaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/2299/2028/files/rogeferugud.pdf
    • https://cdn.shopify.com/s/files/1/0440/7784/2584/files/97686276725.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_off0000605c.bin
21b95b8c9d8e3fe0fa92d3e61cb8cfa77ed623229d04c8cbf8cc682afea8b26b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x605C 5256 bytes
font_01_sfnt_off00007237.bin
ef513734ea96ef670c69c111d98620c9a669160e5b00a5289210942c026fc51b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7237 9924 bytes

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