Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0bd935ff283de79…

MALICIOUS

PDF

46.1 KB Created: 2020-07-08 20:29:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61d34f48b5aa698d50c211649ad443a5 SHA-1: ac050854fc8530c356dbecbc0a5c98f3b8ea033e SHA-256: a0bd935ff283de79e99a25425682f751a1d7930bb789c2e2b608176e978bdaf4
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, identified as a link farm, with one link pointing to a known malicious redirector. The document body also contains a URL that appears to be part of a lure. This suggests the primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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/wb?keyword=alkalise%20or%20die%20pdf
    • http://files.crosslights.net/uploads/1/3/1/8/131872048/zuposaropefeva.pdf
    • http://files.rcdavis-tellinstories.com/uploads/1/3/1/3/131383624/ebc2656e5828c5.pdf
    • http://files.flatspokecycles.com/uploads/1/3/1/4/131408529/6549756.pdf
    • http://files.changingfutures.org.uk/uploads/1/3/1/6/131606087/mufegesitawiko-matuwomap-xivekun-vokozufeletefuz.pdf
    • http://files.lisassalonspa.com/uploads/1/3/2/3/132302999/3641bf5cc9242.pdf
    • http://files.peepspeak.com/uploads/1/3/1/8/131872285/wepudebatagu.pdf
    • http://files.cobilconnect.com/uploads/1/3/0/9/130969853/6ea8d66a.pdf
    • http://files.postichewigs.com/uploads/1/3/1/4/131454172/6562926.pdf
    • https://titoxed.files.wordpress.com/2020/07/lixiboder.pdf
    • https://riwozuxel.files.wordpress.com/2020/07/vufazoxifebajupuzuxawolu.pdf
    • https://puxofiguf.files.wordpress.com/2020/07/xejitudewedo.pdf
    • https://nojisaxopo.files.wordpress.com/2020/06/lotojixavinidorigilig.pdf
    • https://bikaluvamu.files.wordpress.com/2020/06/75839443471.pdf
    • https://fitugugapet.files.wordpress.com/2020/07/94440525176.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baxumedufimoval.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62114329075.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mujunevuduw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.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_off00007765.bin
25eba980d587bd3fcbc68d91d890047e4a87333e22b4cbb4a8d7c2ef2492f223		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7765 4692 bytes
font_01_sfnt_off0000875c.bin
126ab2098a00a6b9d8a3221e3f7b56672b2eb9f7891904d4fa61e33516bc14ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x875C 10628 bytes

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