Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e976d380ad58f80…

MALICIOUS

PDF

45.7 KB Created: 2020-08-02 13:59:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fea979dddbf12d750a864d08d1a68f0 SHA-1: fd2039fe965e87edd0222975ca9c00cf95712bc1 SHA-256: 1e976d380ad58f80db57cdc7e74c66db8952a53fbe5c0edde79dd0d625c5cc51
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=john+deere+la105+manual'. This URL is presented within the document body, suggesting a lure to download further content or visit a malicious site. The presence of a large number of external PDF links also indicates a link farm, likely for SEO manipulation or to host further malicious 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.ru/pify?keyword=john+deere+la105+manual
    • http://files.striba.net/uploads/1/3/0/7/130775275/furemetuva_vixoxusube_wagaranebi_fesuxazosame.pdf
    • http://files.fourcornersuk.com/uploads/1/3/1/4/131483020/beloju.pdf
    • http://files.toyaussietown.com/uploads/1/3/0/7/130776445/4625337.pdf
    • http://files.larte.us/uploads/1/3/0/7/130776131/narolikezezoluj.pdf
    • http://files.lakelandchoralsociety.org/uploads/1/3/1/4/131408439/guvugukes.pdf
    • http://files.larte.us/upload
    • https://cdn.shopify.com/s/files/1/0440/6591/5032/files/rajotipexiforarigasid.pdf
    • https://cdn.shopify.com/s/files/1/0434/2844/6358/files/jefopakekafigodoxekix.pdf
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/45506252797.pdf
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/dexasiwisu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/bejopunegigotutirutujime.pdf
    • https://cdn.shopify.com/s/files/1/0431/5119/6314/files/37061865096.pdf
    • https://cdn.shopify.com/s/files/1/0431/5355/5624/files/tulufiwajalivowazowozaruk.pdf
    • https://cdn.shopify.com/s/files/1/0438/8762/4344/files/78810762534.pdf
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/11361009737.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jerozex.pdf
    • https://cdn.shopify.com/s/files/1/0430/7084/9181/files/lesimejenowulijubidojad.pdf
    • https://cdn.shopify.com/s/files/1/0437/4616/4897/files/pevudajufafemebe.pdf
    • https://cdn.shopify.com/s/files/1/0432/5959/2864/files/vadogajoniworozaputowamer.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_off000068aa.bin
8d78ca97c233941025c3828ece3d68deed1b5d26ee5a7f7b1c2cfcbe8077627a
pdf-font-stream PDF embedded font (sfnt) at offset 0x68AA 5192 bytes
font_01_sfnt_off00007a2b.bin
5f354d0c854c9de3c7ae93bb2092272ced9869015c31b9bc00c35f900be2ac9b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2B 14880 bytes