Malicious PDF — malware analysis report

Static analysis result for SHA-256 934919999fab3365…

MALICIOUS

PDF

50.4 KB Created: 2020-08-31 01:15:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 963aa4cb45ccce3be14c14df5235c8f4 SHA-1: 74980164fe8eed92dfc24bd123e2d54a668a9172 SHA-256: 934919999fab336550bb534b09c556da677fe281bc2f9f666b37e740070a99e4
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=total+abs+workout+at+home+pdf'. This URL is presented within the document body, disguised as a fitness PDF, to entice users to click. The file also contains a PDF link farm heuristic, indicating a large number of outbound links, many of which point to Shopify domains, likely for SEO manipulation or to obscure 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.ru/wix?keyword=total+abs+workout+at+home+pdf
    • https://cdn.shopify.com/s/files/1/0439/8543/6830/files/56095635242.pdf
    • https://cdn.shopify.com/s/files/1/0439/2583/1835/files/46706951552.pdf
    • https://cdn.shopify.com/s/files/1/0435/0181/3915/files/tusun.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nulifagavukaxubodipiripu.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb040bcb95aa4277aede3b1e3cf74351.pdf
    • https://static.usrfiles.com/ugd/b8c837_986d6d3f0bde48f389dc74c1d2969c71.pdf
    • https://static.usrfiles.com/ugd/5438e3_6b9bf6cf1b334f67a6711ce898886e9a.pdf
    • https://static.usrfiles.com/ugd/b8c837_93fb442f601d4f1396acf8fe3e42e002.pdf
    • https://static.usrfiles.com/ugd/3bca44_c7700b68c75442ee87082878d28f6a63.pdf
    • https://static.usrfiles.com/ugd/834936_1f081c2f12e347029929978768221eef.pdf
    • https://static.usrfiles.com/ugd/9b33c5_86dd585f857a4c3aa04b84b6a6ae3155.pdf
    • https://static.usrfiles.com/ugd/6cf392_d62984ff9d6349cbafef2ffb843d7050.pdf
    • https://static.usrfiles.com/ugd/b8c837_c8d3306c2b824d00b2be3f4974d08ef9.pdf
    • https://static.usrfiles.com/ugd/5ad03d_630ccfe0de804749b26f2d5ca71a14a1.pdf
    • https://static.usrfiles.com/ugd/b8c837_6422be812c0c43898afed07fbb5b8c8e.pdf
    • https://static.usrfiles.com/ugd/dd4472_7189638fa2704feca57203326dd9f741.pdf
    • https://static.usrfiles.com/ugd/07e02c_a8a874808d0347409346ebbe711272fa.pdf
    • https://static.usrfiles.com/ugd/b8c837_4c41bea29aba489cbd092bdc608078f5.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_off0000798c.bin
ca74870f332111e087067e04b47009aa409fbeadbda62172130ef5b89d0a624c
pdf-font-stream PDF embedded font (sfnt) at offset 0x798C 5252 bytes
font_01_sfnt_off00008b70.bin
032de66f34fa97a62719dbcb7b5b45c18a476819a6a79d69cadcc80899fca0d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B70 10316 bytes
font_02_sfnt_off0000ae2f.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE2F 4324 bytes