Malicious PDF — malware analysis report

Static analysis result for SHA-256 44b7def8f00e4355…

MALICIOUS

PDF

42.2 KB Created: 2020-08-28 10:18:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77a43876e94293c1b7035978480a219d SHA-1: cd9af406daf7a9323f23449480161ad3381875ad SHA-256: 44b7def8f00e4355352a08a173da71c473cb8747afc38bb8775c12f8ac3573c2
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, disguised with text related to 'Watch the Passion of the Christ'. This heuristic firing, combined with the presence of a large number of embedded links pointing to various PDF files, suggests a link farm or redirection attack. The primary malicious URL identified is ttraff.com, which is flagged as a malicious 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=watch+the+passion+of+the+christ+engl
    • http://files.annakubitz.com/uploads/1/3/1/6/131606743/dikejuto-femoke-gapakebenizax-savifida.pdf
    • http://files.virgietovar.com/uploads/1/3/0/8/130874526/463847.pdf
    • https://cdn.shopify.com/s/files/1/0434/8814/9654/files/masenewikazakeluvatipop.pdf
    • https://cdn.shopify.com/s/files/1/0428/6231/3631/files/plataforma_scielo_brasil.pdf
    • https://cdn.shopify.com/s/files/1/0428/6231/3631/files/5888628603.pdf
    • https://cdn.shopify.com/s/files/1/0430/4044/0471/files/19630583104.pdf
    • https://cdn.shopify.com/s/files/1/0433/1018/6654/files/lexifil.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81397135942.pdf
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/89378565270.pdf
    • https://cdn.shopify.com/s/files/1/0429/3361/6803/files/17356906796.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.pdf
    • https://cdn.shopify.com/s/files/1/0432/4930/3720/files/51539864170.pdf
    • https://cdn.shopify.com/s/files/1/0440/8911/4789/files/geometric_optics_book.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_off0000683a.bin
c7bbc3586d245d4ecf2473610f2d4378d3e5fe8dd7dc97a09f58c463639d87e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x683A 5288 bytes
font_01_sfnt_off00007a3a.bin
300a65accf8118efa8546c3d7d14d8ce2b135d99c807a4a483dab25f432b3658		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3A 9864 bytes

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