Malicious PDF — malware analysis report

Static analysis result for SHA-256 94e5440ebe91af03…

MALICIOUS

PDF

44.5 KB Created: 2020-08-24 04:08:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4890f687c01dd1566040fab7070ceb04 SHA-1: 173dea39766328ddc5bf81d8b917bb98f7dedb81 SHA-256: 94e5440ebe91af033075175574f55fa21d84cd3ca32b6deca3dc4636daef4852
120 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to the URL https://ttraff.cc/pify?keyword=piscatorial+pursuits+reports. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a mass of external PDF links, with the first identified link being to a Shopify domain. The document body contains garbled text but also includes the redirector URL, suggesting a lure to external content. 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.cc/pify?keyword=piscatorial+pursuits+reports
    • http://xugutafu.tdsdancespace.com/uploads/1/3/1/3/131398473/vugofu-bodabefokofa.pdf
    • http://files.dvorajewelrystore.com/uploads/1/3/1/3/131379312/tolurasitetifopu.pdf
    • http://files.teachingwithkasie.com/uploads/1/3/2/7/132712206/c6477d.pdf
    • http://gozajoto.marcoliva.com/uploads/1/3/2/3/132302780/xiniselejilo_tuxujalepi_rezunaninik_mifijavilexodok.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/veladazojex.pdf
    • https://cdn.shopify.com/s/files/1/0428/8829/8662/files/votigame.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/dimodasibunabufuxupova.pdf
    • https://cdn.shopify.com/s/files/1/0427/4618/3847/files/88479471995.pdf
    • https://cdn.shopify.com/s/files/1/0428/8764/3303/files/elite_knight_armor_ds3.pdf
    • https://cdn.shopify.com/s/files/1/0429/9997/1999/files/77649580310.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6295/files/22002076149.pdf
    • https://cdn.shopify.com/s/files/1/0431/6482/7805/files/6482000130.pdf
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/valepozawaxamaxinogumiz.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_off0000707a.bin
9fe4a8a81e2c27ee10d7d3280fae6ec1d748c22399a837a9791ee4e898825010		 pdf-font-stream PDF embedded font (sfnt) at offset 0x707A 4928 bytes
font_01_sfnt_off00008144.bin
2062e11cd43e40632188e5f003ca45b2314bb920591a5884679068824b0d7ad8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8144 10688 bytes

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