Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ed369bea1ffa26…

MALICIOUS

PDF

53.5 KB Created: 2020-08-12 03:38:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41adaf2567a5181409c3dc9bb1eaf60d SHA-1: ac517969009ab3d5db5df72095582e2cbe8c1768 SHA-256: 59ed369bea1ffa26c2787903c397db6a7205ff7a116e5c7991853ef9150cbc81
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external sites, indicating a link farm or redirection strategy. The primary URL, 'https://ttraff.com/pify?keyword=adolescent+psychology+syllabus+pdf', is flagged as a malicious redirector. The document body, though partially corrupted, contains text related to 'Adolescent psychology syllabus pdf' and includes the malicious URL, suggesting a lure to disguise malicious activity. No scripts were extracted from this sample.

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=adolescent+psychology+syllabus+pdf
    • http://files.chereeamourjewelry.com/uploads/1/3/2/6/132681885/7272518.pdf
    • http://kezedukub.myswimvillage.com/uploads/1/3/0/8/130873958/244a16c2d2749d.pdf
    • http://files.brotherlylovenation.com/uploads/1/3/2/6/132683251/zubotaliret-wikonepavi.pdf
    • http://miriz.myteachertoolbelt.com/uploads/1/3/1/4/131482975/vubesuwa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2889/8211/files/kodefig.pdf
    • https://cdn.shopify.com/s/files/1/0431/5008/2202/files/fakegafenafesedojotinelen.pdf
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/nezowo.pdf
    • https://cdn.shopify.com/s/files/1/0438/5121/9104/files/geloxisepudafujoji.pdf
    • https://cdn.shopify.com/s/files/1/0431/9834/9471/files/82257598612.pdf
    • https://cdn.shopify.com/s/files/1/0434/4925/4050/files/caracteristicas_de_los_enlaces_ionicos.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/33617645071.pdf
    • https://cdn.shopify.com/s/files/1/0438/8637/9160/files/98695264700.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kiwovanigefuminif.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/9513978907.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/labulusinubolefapox.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_off00009171.bin
356f5921f86f459dec33d77ede285bd10f301037ccb0ef5af3a6b88f754d9c34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9171 5552 bytes
font_01_sfnt_off0000a45e.bin
1d21df1c3a1c7f2143df6dc29d3c13bf14c1a963aa30bd1f179981d9181ba443		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA45E 10916 bytes

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