Malicious PDF — malware analysis report

Static analysis result for SHA-256 58e0a07a07a15e9e…

MALICIOUS

PDF

61.1 KB Created: 2020-08-31 22:33:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d6516b5709f9d450858aa8a11dbeb57 SHA-1: d41afbd06d0912ae7156ce60ad1ab7b404cfff5e SHA-256: 58e0a07a07a15e9ea524c13d22e38e016c8d70638ce2649fc3a856e29f260a9b
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of the primary links points to a known malicious redirector. The document body, though heavily corrupted, contains the same search query as the malicious URL, suggesting a lure. The file's purpose appears to be to distribute malicious links or 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.ru/wix?keyword=anjaana+anjaani+video+song++pagalworld
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/ripojazisamudenategulorev.pdf
    • https://cdn.shopify.com/s/files/1/0437/0595/8553/files/organic_linen_sheets_canada.pdf
    • https://cdn.shopify.com/s/files/1/0438/6455/5680/files/relacion_entre_absorbancia_y_transmitancia.pdf
    • https://static.usrfiles.com/ugd/b5472a_4c1ec1bff74c498c89dfb146cb959c08.pdf
    • https://static.usrfiles.com/ugd/b8c837_053808e8de0a4b62b6f65f7f8946bbac.pdf
    • https://static.usrfiles.com/ugd/18f527_f259afea6a5a42b89fcf3b9967c9d964.pdf
    • https://static.usrfiles.com/ugd/b8c837_407c605c881c44f1a4d6a1741ebced12.pdf
    • https://static.usrfiles.com/ugd/e23fbb_3563387cf1cb47dfb410e2b4caf6e3e0.pdf
    • https://static.usrfiles.com/ugd/3f80ec_8595c074e37b47d4983a659b1ce3007b.pdf
    • https://static.usrfiles.com/ugd/b8c837_411da9f96bd64d42b5d9faf7ff2e1b4c.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce6eef643ae1473992e4e40a475ccbc1.pdf
    • https://static.usrfiles.com/ugd/b8c837_169c9eff585f45d593665a06615ddecc.pdf
    • https://static.usrfiles.com/ugd/8b4172_af210b2b9e4f464995ffc057fadba269.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009c0f.bin
e40e9e17056abee237e508794041cc6ddc49e04869a4a47d86f32831a1dc3975		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C0F 5344 bytes
font_01_sfnt_off0000ae67.bin
9b51c5e12980f9f9f537018c9a6e68bdbb6a9ad5ba42b56a9b47b531f8328e8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE67 10376 bytes
font_02_sfnt_off0000d231.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD231 16164 bytes

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