Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7e7fd67c8e5a70c…

MALICIOUS

PDF

33.3 KB Created: 2020-08-08 14:32:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bcfe87e872fc92f1afdf7199e776391 SHA-1: 396f4e4ed6316261aa9b5fa73fd4c885adf2ec83 SHA-256: e7e7fd67c8e5a70cff585e92864e1764b9fd5cfc45790ab37805c1c18e9b4ec7
120 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com. The document body, though partially corrupted, includes text suggesting it is related to 'Oxford discover science 3 pdf', likely a lure to encourage clicks. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the redirector.

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=oxford+discover+science+3+pdf
    • http://files.youthdigital.com/uploads/1/3/1/8/131871477/butojafes.pdf
    • http://files.allbookedup.ca/uploads/1/3/0/8/130874317/mitixagiduv.pdf
    • http://files.dogwaydogrescue.org/uploads/1/3/1/4/131452861/1960213.pdf
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/2599421324.pdf
    • https://cdn.shopify.com/s/files/1/0436/4635/3561/files/boxudebexetenabavelulun.pdf
    • https://cdn.shopify.com/s/files/1/0429/1624/9767/files/garmin_dezl_770_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/6618/6135/files/muxenigereje.pdf
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/fisigiretutigolased.pdf
    • https://cdn.shopify.com/s/files/1/0429/5675/1002/files/vevewesimaroboretavujegi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2974/2246/files/adding_fractions_coloring_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9799/7991/files/22219681929.pdf
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/prodigy_brake_controller.pdf
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/39129553345.pdf
    • https://cdn.shopify.com/s/files/1/0435/1534/7103/files/cards_against_humanity_with_pictures.pdf
    • https://cdn.shopify.com/s/files/1/0436/6244/2661/files/bozijufudolotizukulini.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_off00004544.bin
df7061bf119531474eb7fa3ae373416c378b2da9d4d251cb610c5d05ac67622c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4544 5224 bytes
font_01_sfnt_off0000572e.bin
b4070c586bc249676f4f895af0ba81793e09e748740fe04b355cdfe7f4b307c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x572E 9720 bytes

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