Malicious PDF — malware analysis report

Static analysis result for SHA-256 b69278da72352706…

MALICIOUS

PDF

42.6 KB Created: 2020-08-31 08:31:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b106af5198fc111fe16434b9801069e SHA-1: 0699886ad91c92523e2c360e45e1d81e32d7145a SHA-256: b69278da72352706cf1448f14757332358a47bb140898dd41e179cbcd5907d76
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the one identified by the heuristic. This suggests the primary purpose is to redirect users to a malicious site, likely for phishing or malware distribution. 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=basic+technical+mathematics+with+calculus+ebook
    • https://static.usrfiles.com/ugd/96bf9d_fc05b71062874f3abbd8dc3304ca528d.pdf
    • https://static.usrfiles.com/ugd/eb4c03_96d178bb2c2f475188d45de7d9827b8e.pdf
    • https://static.usrfiles.com/ugd/d1c05f_fe1ccceb9ee441c8b921bfa0c8a7c7ce.pdf
    • https://static.usrfiles.com/ugd/9edd50_cb57e550275e4a46bc6609087ed92fad.pdf
    • https://static.usrfiles.com/ugd/5be868_c7579b65c1604b2e96087bdf620fcb55.pdf
    • https://static.usrfiles.com/ugd/09c3c7_01f5359bb10d49ee9af5127552994358.pdf
    • https://cdn.shopify.com/s/files/1/0439/9484/1246/files/reporter_news_ethiopian.pdf
    • https://cdn.shopify.com/s/files/1/0435/6122/2307/files/arifureta_from_commonplace_to_world_s_strongest_light_novel.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/buxidumex.pdf
    • https://cdn.shopify.com/s/files/1/0435/8995/9843/files/kajububoruterutop.pdf
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/34113801290.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_off0000615a.bin
0e5243aff71e41ce771220fa761a8ca789f3b9d03ed394341941239ec9635cad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x615A 5288 bytes
font_01_sfnt_off00007336.bin
ddd3d581d5e741fefd9bb52cd9fe824efcdea5f6bd752fbff268c08a4eb2fd4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7336 13192 bytes

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