Malicious PDF — malware analysis report

Static analysis result for SHA-256 979155e7099ade2b…

MALICIOUS

PDF

49.0 KB Created: 2020-08-08 16:12:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40aa9f8d64d2c9e2f381336db50c44b6 SHA-1: 775025b8554e92544d75412fe7e8f4690d20c474 SHA-256: 979155e7099ade2bde90ca2b8a0ece65aea26d809f69da6948693f09a691c20d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link to 'ttraff.com'. The document body, though heavily obfuscated, contains this same URL, suggesting it is the primary lure. The presence of numerous other Shopify links suggests a link farm or SEO poisoning tactic to distribute the 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.com/pify?keyword=ir+table+functional+groups+pdf
    • http://files.crosswoods.com/uploads/1/3/2/6/132695489/rowag.pdf
    • http://files.brianboydmotorsports.com/uploads/1/3/0/8/130874642/8712781.pdf
    • http://gulinas.recoverycafelafayette.org/uploads/1/3/1/3/131398360/fujukameku-mizejunuloz-netumidutamej.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56317886700.pdf
    • https://cdn.shopify.com/s/files/1/0431/7623/1063/files/69520126030.pdf
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/45065221140.pdf
    • https://cdn.shopify.com/s/files/1/0430/9729/2967/files/35830559515.pdf
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/dobatexikegewokumuxet.pdf
    • https://cdn.shopify.com/s/files/1/0433/7418/2563/files/james_patterson_book_list.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2581582401.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6269/files/29304146121.pdf
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/kapodoxajiwukoge.pdf
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/bignoniaceae_family.pdf
    • https://cdn.shopify.com/s/files/1/0433/7487/0689/files/anorexia_nerviosa_en_adolescentes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10699911966.pdf
    • https://cdn.shopify.com/s/files/1/0431/4192/2977/files/fibonacci_sequence_calculator.pdf
    • http://www.chemistry.ccsu.edu/glagovich/teaching/472/ir/table.html
    • 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_off000067b9.bin
52fef96590d2d915db05dbd30cf38aa2fab37576340629d2726d83b953b94e0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x67B9 5280 bytes
font_01_sfnt_off000079a6.bin
06dbf371b164a8cb6aa91342a7d7c317ad8cb444d49195b6d486da4b284c849b
pdf-font-stream PDF embedded font (sfnt) at offset 0x79A6 14820 bytes
font_02_sfnt_off0000a84e.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA84E 4324 bytes