Malicious PDF — malware analysis report

Static analysis result for SHA-256 dea9deb59bc312c4…

MALICIOUS

PDF

44.9 KB Created: 2020-08-09 21:51:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 693eb3b24c2bcdfd57afa6ccd22fde9d SHA-1: 7d03bfa30941cae48d8b85afd647ae46569267bf SHA-256: dea9deb59bc312c465ca9b0f1b7e6dc4a8bf78082b4549d9b5e9550ff1bcea39
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, contains text suggesting a lure related to 'citation philosophique sur le travail et le bonheur pdf' and includes the malicious URL. This indicates a social engineering attack aiming to redirect users to potentially harmful content.

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=citation+philosophique+sur+le+travail+et+le+bonheur+pdf
    • http://files.usydfoodcoop.org/uploads/1/3/1/3/131398246/a371099d3.pdf
    • http://files.nicolewebster.ca/uploads/1/3/0/8/130815277/0dcc9aace22.pdf
    • http://files.macbma.net/uploads/1/3/1/4/131437873/620684711f7b.pdf
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/lozelorikinek.pdf
    • https://cdn.shopify.com/s/files/1/0440/6041/0021/files/lebobobazujine.pdf
    • https://cdn.shopify.com/s/files/1/0448/3697/8850/files/credit_risk_in_banks.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4447/files/lesekiwuwumivepawuvezese.pdf
    • https://cdn.shopify.com/s/files/1/0440/7528/6693/files/31405056512.pdf
    • https://cdn.shopify.com/s/files/1/0439/3651/4216/files/pexijipesukenorimerugix.pdf
    • https://cdn.shopify.com/s/files/1/0431/8488/1824/files/fewiniwewibapamif.pdf
    • https://cdn.shopify.com/s/files/1/0432/2020/5726/files/ceneval_medicina.pdf
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/kentucky_driver_s_manual_2016.pdf
    • https://cdn.shopify.com/s/files/1/0433/9925/0072/files/bebunuru.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/87230603382.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_off00006d01.bin
177dd66d872c6cf77aed1bddcb38493c2b93f00d534ab4ce81167954c9fd8a65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D01 5360 bytes
font_01_sfnt_off00007f2d.bin
dbd0584839ee66e023ad2cdb034ba9523b07f0a5efd40f3a8e3ed22e893ed787		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2D 12004 bytes

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