Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e2cfd7fe807a4b4…

MALICIOUS

PDF

49.4 KB Created: 2020-08-24 02:27:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4151521b287a2e3c99daf4a887803649 SHA-1: 30baa1fb449661f21d9519e9b87c3c99bc8fc655 SHA-256: 4e2cfd7fe807a4b4212f832ea8276f3ac6fab0717f65002227b5bc5f65fe1626
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.ru/pify?keyword=riven+guide+aram', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF links, suggesting a social engineering lure to drive traffic to malicious infrastructure.

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=riven+guide+aram
    • http://magif.seaofqibodywork.com/uploads/1/3/2/6/132695832/raviwebek-zawazawokom-rimelanasukiba.pdf
    • http://files.bethinkcreate.com/uploads/1/3/2/7/132740218/70bd1ff781.pdf
    • https://cdn.shopify.com/s/files/1/0433/2008/2590/files/50288093794.pdf
    • https://cdn.shopify.com/s/files/1/0434/4755/0119/files/greek_mythology_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/understanding_business_nickels_12th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/70278858726.pdf
    • https://cdn.shopify.com/s/files/1/0440/7053/5318/files/allscripts_training_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/0564/8807/files/2614731155.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1030/files/kexejenesaxumesejisaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8351/3499/files/9641422204.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8487/files/39197528903.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/files/1/0431/0564/88

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000708f.bin
cf395f0cb03f6cd04d8b1e076f25ee4bff01f76032570071c3a227b216ce1dfb
pdf-font-stream PDF embedded font (sfnt) at offset 0x708F 5004 bytes
font_01_sfnt_off00008185.bin
4abb36756971de2304fffc756e94e4a3111c0ae38c306f97fbf7ab27638c70e4
pdf-font-stream PDF embedded font (sfnt) at offset 0x8185 20164 bytes