Malicious PDF — malware analysis report

Static analysis result for SHA-256 d189f71023946a0a…

MALICIOUS

PDF

47.0 KB Created: 2020-08-20 18:18:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78724bec43d5346706abbf30280c82dc SHA-1: 830fd0da239ed4e9606d2a0759066472254a25b8 SHA-256: d189f71023946a0a42cf36250fa9edda0bdd4ed8f8924354e4ea25044d3e5de1
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which points to a URL that appears to be a lure for downloading software. The document body also contains the same URL, suggesting it's the primary mechanism for user interaction. The file also exhibits characteristics of a link farm, with numerous external PDF links, many of which are benign, but one critical link leads to a known malicious redirector.

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=ashes+cricket+2017+pc+setup
    • http://xaxuwi.thefabriclibraryenniskillenltd.com/uploads/1/3/0/7/130739897/mosogefegereguk.pdf
    • http://ranino.gesikpt.com/uploads/1/3/1/1/131163559/xatejexepup.pdf
    • http://files.shopitiswhatitis.com/uploads/1/3/2/7/132740275/618791.pdf
    • https://cdn.shopify.com/s/files/1/0434/5335/0040/files/que_es_arquitectura_libros.pdf
    • https://cdn.shopify.com/s/files/1/0449/8348/4574/files/yaseen_sharif_free.pdf
    • https://cdn.shopify.com/s/files/1/0454/0062/1224/files/1463774497.pdf
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/kuxev.pdf
    • https://cdn.shopify.com/s/files/1/0430/4879/6309/files/67171341333.pdf
    • https://cdn.shopify.com/s/files/1/0438/9991/2344/files/how_to_make_bookmarks_in_nitro.pdf
    • https://cdn.shopify.com/s/files/1/0434/6413/0725/files/brother_lock_1034d.pdf
    • https://cdn.shopify.com/s/files/1/0430/5305/6149/files/drilling_through_metal_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/8115/4198/files/9350654583.pdf
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/kagibujupujukuj.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_off0000639c.bin
49ac572e667cbbbe22edf9ae35607f0a47de20fce124c1ebee016f1d50637fdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x639C 5240 bytes
font_01_sfnt_off0000757b.bin
e0dff8c008cf10347a2089858229e2cbd35b1a0aca795df5a8c01ecf979ea03b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x757B 10252 bytes
font_02_sfnt_off000098cd.bin
71fe66e8a900eabe62c773f6b9b467243c87e6d484dd0ea34a22194082714177		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98CD 16660 bytes

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