Malicious PDF — malware analysis report

Static analysis result for SHA-256 b010ed756d517321…

MALICIOUS

PDF

45.9 KB Created: 2020-09-03 00:02:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3eb5cc915366123d41f3159b4cc2c593 SHA-1: d4f238f19bc830181dde8dd165e58bfe64fbba24 SHA-256: b010ed756d517321fe0f491dd5787e9fa5cae733174543ba2c296ca8ec967bd4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a mass of external links, masquerading as an admissions form, to a known malicious redirector. The primary malicious URL is https://ttraff.com/wix?keyword=heckmondwike+grammar+school+admissions+form. The document also contains numerous links to PDFs hosted on static.usrfiles.com, which are likely part of a link farm to improve SEO for the malicious redirector. 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=heckmondwike+grammar+school+admissions+form
    • https://static.us
    • https://static.usrfiles.com/ugd/c1615c_cd9513e557ac4678a5ab39c4975b03c6.pdf
    • https://static.usrfiles.com/ugd/4b874d_0c8bc637002a4bd4be39a94895598876.pdf
    • https://static.usrfiles.com/ugd/78daac_82afa812a76b4ae9b184c2f0ff719f4b.pdf
    • https://static.usrfiles.com/ugd/7a11b0_85439d1ba8894908ad45bedfe82a3c45.pdf
    • https://static.usrfiles.com/ugd/b8c837_4f523f56af1f483e92e1b8739e9867df.pdf
    • https://static.usrfiles.com/ugd/824332_1ed6f382b77d498586c3a383251795a8.pdf
    • https://static.usrfiles.com/ugd/3bcfef_1f79dc2a60484af89ec185a4f2a1c44d.pdf
    • https://cdn.shopify.com/s/files/1/0432/5415/3371/files/dawiwaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/6604/8164/files/ato_company_tax_return_form_2016.pdf
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/53518122071.pdf
    • https://static.usrfiles.com/ugd/3826db_b4ef6edc617b4ca68d6e57ed8a941777.pdf
    • https://static.usrfiles.com/ugd/b916f4_29e41b48fc6d4be484782ff4a8fa93da.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_off00006659.bin
96bfa2cb8634ff03db1c13f257a2751ff7123cabe2ab9906d0a003d711d3533a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6659 5260 bytes
font_01_sfnt_off0000780c.bin
42b77a2074e40e42d793d4ee8e6d581463fd692be11fe95221532ea3a4072e9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x780C 10660 bytes
font_02_sfnt_off00009c67.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C67 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.