Malicious PDF — malware analysis report

Static analysis result for SHA-256 9166965ceae3760a…

MALICIOUS

PDF

39.6 KB Created: 2020-08-07 07:05:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffb1d8e8bc1b695f6bc96d979a1aa0b0 SHA-1: cb88bf762a90956cb894fcd13236a312c13f653d SHA-256: 9166965ceae3760a12c9ff26cec59c32c08ee49d8e6cb847f20f3261f45672ec
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a link farm designed to appear as a lesson plan template, but the primary link redirects to malicious infrastructure at ttraff.com. This indicates a social engineering attempt to lure users into clicking a malicious URL. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the payload.

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=backward+design+lesson+plan+template+pdf
    • http://kavemu.alissamschmidtphotography.com/uploads/1/3/1/3/131398020/wanemapiw.pdf
    • http://files.niswongercare.com/uploads/1/3/1/0/131070849/28292b14cd31e.pdf
    • http://files.laviishluxxe.com/uploads/1/3/0/9/130969356/1636614.pdf
    • http://files.margaretmorrisonhighlanddance.com/uploads/1/3/1/3/131380175/0949698b1.pdf
    • https://cdn.shopify.com/s/files/1/0440/0293/4942/files/joradozivemupusojodez.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/sexizirepidorodajokudum.pdf
    • https://cdn.shopify.com/s/files/1/0431/6607/2994/files/begorepamovuvebubuxez.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64630415929.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dekafarisajanitid.pdf
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/simple_present_tense_interrogative_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kofuka.pdf
    • https://cdn.shopify.com/s/files/1/0432/8102/3140/files/96457813628.pdf
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/ahmad_shah_abdali_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/viduwidofokokidebafasomu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6481/1935/files/91962938604.pdf
    • https://cdn.shopify.com/s/files/1/0429/7628/0729/files/kaporapepefujegikisumide.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/
    • https://cdn.shopify.com/s/files/1/0429/6481/1935

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ee8.bin
733e3d3d5c4c160c74e47d1fad032b7bf292a6e3cee35c3ca63f7df97808fcf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE8 5680 bytes
font_01_sfnt_off00007243.bin
fabf5ab0530074048fab809461a6f5de5363dbd45d84e8ee36c729fddc49cf4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7243 9040 bytes

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