Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c199d819adb335…

MALICIOUS

PDF

37.1 KB Created: 2020-08-13 22:48:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 771419eac57feb3c31ae5b21ff511cb0 SHA-1: 11cddf73f7bfe2fda3a6b9751efcb3420ebef62a SHA-256: 46c199d819adb335827ad515efd63c8ca8a6b082a2469bde421497b7f4199241
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to Shopify domains hosting other PDFs, which is characteristic of a link farm. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com'. This suggests the document's primary purpose is to direct users to malicious infrastructure, likely for phishing or to serve further malware. No scripts were extracted, and the document body was heavily obfuscated.

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=beechen+cliff+sixth+form+dress+code
    • http://risuw.nationaladresource.com/uploads/1/3/0/7/130775432/6280647.pdf
    • http://files.thegreatestpuzzleever.com/uploads/1/3/2/7/132712005/4747756.pdf
    • http://files.womens4miler.org/uploads/1/3/1/3/131384306/notudewupuxatet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mozesuseb.pdf
    • https://cdn.shopify.com/s/files/1/0447/0043/4586/files/sahih_bukhari_hadees_in_urdu_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/5428/5479/files/jujokewutakerefuwalodeje.pdf
    • https://cdn.shopify.com/s/files/1/0435/5165/4047/files/67119504557.pdf
    • https://cdn.shopify.com/s/files/1/0431/4542/9160/files/44096992774.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/39824303525.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdf
    • https://cdn.shopify.com/s/files/1/0431/2632/5402/files/ruvamosafawutet.pdf
    • https://cdn.shopify.com/s/files/1/0428/7165/2508/files/hiv_lipodystrophy_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0455/files/pazuwakozenivipopeva.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2520/files/sexik.pdf
    • https://cdn.shopify.com/s/files/1/0427/6027/4087/files/74602744128.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_off00005390.bin
ecf0a68b9502f658de33ccd2bfdff9caa3b9f5d60324ac866f368152a4ac9d9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5390 5168 bytes
font_01_sfnt_off000064f2.bin
2e7f8a52fd03d3a5161972b32c5756c3b5addc8f45b1f4b4503c2e614ceca7e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64F2 10172 bytes

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