Malicious PDF — malware analysis report

Static analysis result for SHA-256 da76082159835f26…

MALICIOUS

PDF

52.0 KB Created: 2020-08-22 20:43:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4eba597095a0014bd1fcad0fb68ec443 SHA-1: af0fd02d72c599b9b5ac6e6b59332e9d301d7932 SHA-256: da76082159835f26489647990de84d3357fd06f29d79d5c4fad9245ba5a73d1d
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector. One of the primary links, 'https://ttraff.cc/pify?keyword=cebu+tourist+map+guide', is identified as a malicious redirector. Another heuristic flags the document as a PDF link farm, with many links pointing to Shopify domains, likely for SEO manipulation to increase visibility. The document body contains text related to 'Cebu tourist map guide', suggesting a lure to entice users to click the malicious link.

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/pify?keyword=cebu+tourist+map+guide
    • http://xefap.veronicablight.com/uploads/1/3/1/4/131406263/xikivuzisigasotizigi.pdf
    • http://files.transitiontownjericho.net/uploads/1/3/1/1/131164016/22d01c224b7.pdf
    • https://cdn.shopify.com/s/files/1/0429/2739/0887/files/rarej.pdf
    • https://cdn.shopify.com/s/files/1/0433/9597/3276/files/aneurisma_bone_cyst_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0440/1987/5998/files/nelson_math_textbook_grade_12_advanced_functions.pdf
    • https://cdn.shopify.com/s/files/1/0433/9820/1502/files/fluid_catalytic_cracking.pdf
    • https://cdn.shopify.com/s/files/1/0438/5459/4213/files/71826503924.pdf
    • https://cdn.shopify.com/s/files/1/0430/0403/5221/files/2095006312.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38746106010.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1317992411.pdf
    • https://cdn.shopify.com/s/files/1/0438/0635/9713/files/97757655440.pdf
    • https://cdn.shopify.com/s/files/1/0439/1829/5195/files/gededixigikezuxemob.pdf
    • https://cdn.shopify.com/s/files/1/0435/7164/2527/files/65521421587.pdf
    • https://cdn.shopify.com/s/files/1/0436/4586/2041/files/50297050618.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000078e3.bin
fe50e7f926f7b17f1601b604002e2ae70bc81768436d906c8a20b28942111201		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78E3 5292 bytes
font_01_sfnt_off00008ab9.bin
940438034dd1a9fd8c0989c09e6890c606876dc9574930199357d8a1560bd1c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB9 10156 bytes
font_02_sfnt_off0000ad99.bin
aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD99 16312 bytes

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