Malicious PDF — malware analysis report

Static analysis result for SHA-256 514e9a38a96c78e9…

MALICIOUS

PDF

38.9 KB Created: 2020-08-19 10:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a7a6dad9e7306943fef6ea26df5369b SHA-1: ae0d207555192f84722af7bf4e3768d50249a7fc SHA-256: 514e9a38a96c78e939c10767c20f50921db74b8164ef439d44e09f890efa7cc8
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes the URL that is also present in the malicious redirector link. This suggests the primary goal is to trick the user into visiting the malicious URL by clicking on the link within the PDF.

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=advantages+and+disadvantages+of+lifi+technology+pdf
    • http://pudemenob.louise-roberts.net/uploads/1/3/2/8/132814930/wowogebexixezuginufe.pdf
    • https://cdn.shopify.com/s/files/1/0430/5541/5445/files/gizufusejofaxas.pdf
    • https://cdn.shopify.com/s/files/1/0435/9254/8515/files/min_heap_implementation_java.pdf
    • https://cdn.shopify.com/s/files/1/0447/9755/8941/files/anuradhapura_map.pdf
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/223363937.pdf
    • https://cdn.shopify.com/s/files/1/0440/0765/3526/files/genaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2475/files/50807340233.pdf
    • https://cdn.shopify.com/s/files/1/0431/6174/7605/files/zowadunebinowowuralawebi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3654/9018/files/depujezijitid.pdf
    • https://cdn.shopify.com/s/files/1/0432/3010/1668/files/nokubanufojedonolasak.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_off00005957.bin
e7a470e004b8ae076ac0757028c81ad2a758200cb0b5c82d0d8507fc432becd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5957 5472 bytes
font_01_sfnt_off00006c06.bin
094f8597d9359a2c9b7f7e216d9e254b97c168c6dfb0018fba0fe2649cacd13f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C06 10240 bytes

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