Malicious PDF — malware analysis report

Static analysis result for SHA-256 43aca90a9f8e124b…

MALICIOUS

PDF

45.8 KB Created: 2020-08-29 20:31:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 504d342d137b46d9ef81fb3d18c43388 SHA-1: 29a280ca0a6c2b6fab4f8830490ebf4c34b9b5f6 SHA-256: 43aca90a9f8e124b39a50923865cff4b990cdad80be0545cf7ae251726bf6f3b
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 pointing to 'ttraff.cc', which is used to lure users to a malicious site. The document body, though partially corrupted, contains text related to the 'Insan genom projesi' and the malicious URL. The presence of a link farm heuristic further suggests an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The primary attack vector appears to be a phishing lure disguised as relevant content.

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/wix?keyword=insan+genom+projesi+slayt
    • https://cdn.shopify.com/s/files/1/0439/2547/1400/files/50578419864.pdf
    • https://cdn.shopify.com/s/files/1/0433/3735/1323/files/78763507017.pdf
    • https://cdn.shopify.com/s/files/1/0435/8579/8301/files/fakofuromilos.pdf
    • https://cdn.shopify.com/s/files/1/0431/7049/6661/files/present_perfect_continuous_tense_in_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1781/files/68510840090.pdf
    • https://cdn.shopify.com/s/files/1/0462/5943/7717/files/xogajo.pdf
    • https://static.usrfiles.com/ugd/f0e51d_66dd44ec2872408db4d0fe5b575056dd.pdf
    • https://static.usrfiles.com/ugd/b8c837_810b0651ded14a6692ae7a369acc15a9.pdf
    • https://static.usrfiles.com/ugd/b8c837_1068a86272d44ee79c5c33a8e5e7a9ab.pdf
    • https://static.usrfiles.com/ugd/b8c837_07d40035df2a43baafe2e9f9bf9476f1.pdf
    • https://cdn.shopify.com/s/files/1/0437/4642/7034/files/fegukaxi.pdf
    • https://cdn.shopify.com/s/files/1/0434/8028/5348/files/70280422301.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19441108854.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/ledovusedibow.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/
    • https://cdn.shopify.com/s/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007182.bin
a39d4342c1826faf3c2432dad4623cac6513a10ef09239cb561132f186c45827		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7182 5252 bytes
font_01_sfnt_off00008355.bin
1dde6a4275f76cf8a8f5c64ac7a95d6427d3aee2ddc41a8bdeead43dfc7e4054		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8355 12144 bytes

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