Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb6eb55490fff635…

MALICIOUS

PDF

44.2 KB Created: 2020-08-31 12:12:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6be060393e11da7359eede6938d59c60 SHA-1: 75938f3b512f400782a77af41726abc068e3acdd SHA-256: eb6eb55490fff63559ac6b68ce708d34dafdd48bb7e594f8f79d84bd1b53b0b9
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for "Kali linux tutorials for beginners pdf". This suggests the document's primary purpose is to redirect users to malicious infrastructure. 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/wix?keyword=kali+linux+tutorials+for+beginners+pdf
    • https://cdn.shopify.com/s/files/1/0432/1057/1940/files/90382796309.pdf
    • https://cdn.shopify.com/s/files/1/0430/4103/0293/files/54870714944.pdf
    • https://cdn.shopify.com/s/files/1/0433/4292/1886/files/73313685286.pdf
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/zifivavanokibejori.pdf
    • https://cdn.shopify.com/s/files/1/0459/1733/9797/files/lolojujajazaxu.pdf
    • https://cdn.shopify.com/s/files/1/0469/9793/0136/files/bdo_tamer_pve.pdf
    • https://cdn.shopify.com/s/files/1/0451/3683/8821/files/oxitetraciclina_veterinaria.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17612659915.pdf
    • https://static.usrfiles.com/ugd/d55797_a5de4a3053204335ae16ea50f6aca6e1.pdf
    • https://static.usrfiles.com/ugd/b27199_998fb8b2b1a5436882f6fb0ea03e83fc.pdf
    • https://static.usrfiles.com/ugd/b8c837_ae865658a48742c28b8f1544b0c5d915.pdf
    • https://static.usrfiles.com/ugd/18122d_194e06658f374420ad00f66105eee8a2.pdf
    • https://static.usrfiles.com/ugd/b8c837_70ecd7a810a944bd9e73a6ad259d29e1.pdf
    • https://static.usrfiles.com/ugd/b8c837_63922fa31b41428287cf2be7e624960d.pdf
    • https://static.usrfiles.com/ugd/286fb8_13922ad0d4e44ffbace8ff787a8e4d44.pdf
    • https://static.usrfiles.com/ugd/f84671_49ebb9c679d24ff4bed30af4f73cbf04.pdf
    • https://static.usrfiles.com/ugd/b8c837_28ee1430f79b46dc984a160ba83336f8.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_off00006dcf.bin
0ba2ef43994aa841bc52a20a7351cd6201da40e9e6e4548e2b239c56ec588580		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCF 5388 bytes
font_01_sfnt_off00008030.bin
233b7170f60cad86dbec6478d638f18c1b0f0ccbffb2911e6db961813e039602		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8030 10428 bytes

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