Malicious PDF — malware analysis report

Static analysis result for SHA-256 4365f945d86fdd21…

MALICIOUS

PDF

49.1 KB Created: 2020-08-15 05:47:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7242f86e3d9d31e95534710e66770a27 SHA-1: 511071aa25dacdb095cbb5584fdaa28177605929 SHA-256: 4365f945d86fdd219cf246a1197b98331e1fda5cb499e93a276367654b1c8f08
160 Risk Score

Malware Insights

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

The PDF file contains a lure for an advance-fee scam, presenting itself as a legal guide while embedding links to malicious infrastructure. The primary link, 'https://ttraff.ru/pify?keyword=investor+state+law+guide', is flagged as a malicious redirector. Additionally, the document hosts a large number of external PDF links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or traffic redirection.

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=investor+state+law+guide
    • http://jeweti.mccormickmasonry.com/uploads/1/3/0/8/130813747/34485d8bc.pdf
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/xaradi.pdf
    • https://cdn.shopify.com/s/files/1/0440/0827/6126/files/manual_ableton_live_10.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/pofixaruvunudakabufeto.pdf
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/e8_af_97_e7_bb_8f.pdf
    • https://cdn.shopify.com/s/files/1/0428/4832/1692/files/sosafivupugiwitepamebe.pdf
    • https://cdn.shopify.com/s/files/1/0433/9462/9788/files/lopisovubojajutibi.pdf
    • https://cdn.shopify.com/s/files/1/0438/9273/6155/files/amplifier_circuit_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/2790/7239/files/libros_epidemiologia_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0431/8514/3969/files/gerutibuxebapozenutizaji.pdf
    • https://cdn.shopify.com/s/files/1/0434/6596/5718/files/faziwosololevexinafura.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_off000082f9.bin
80d472da278079cabd8660d59dd8f91ed301f807d9fada33b03a756f700e5ee4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82F9 5084 bytes
font_01_sfnt_off0000945f.bin
83da926be67b64c15698682d634cd18ffdea4d62a39bd65c8011872ced661689		 pdf-font-stream PDF embedded font (sfnt) at offset 0x945F 10288 bytes

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