Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e8ab794656a0032…

MALICIOUS

PDF

44.6 KB Created: 2020-07-30 03:35:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91ad60b261ed7277b72a06dfbde37ddb SHA-1: bd8c5d8e397995929997a6fcee2111bca8845347 SHA-256: 4e8ab794656a0032947906ca35aefa8050ca18adec6a4657785f233e96baf799
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=space+articulation+and+territoriality+in+architecture+pdf'. The document body is heavily obfuscated and unreadable, but the presence of the malicious redirector and link farm structure strongly suggests a phishing or malware distribution attempt.

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=space+articulation+and+territoriality+in+architecture+pdf
    • http://files.kg-games.com/uploads/1/3/1/4/131437885/3000916.pdf
    • http://files.taylorhobsonserviceusa.com/uploads/1/3/2/3/132303229/a4f609b3d1346.pdf
    • http://files.robesonlutheranpreschool.org/uploads/1/3/1/8/131856333/161cb7e698.pdf
    • http://files.mshabunal.com/uploads/1/3/1/3/131398560/5115393.pdf
    • http://files.mshabunal.c
    • https://cdn.shopify.com/s/files/1/0432/3206/7739/files/41107004431.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/rovesumatasur.pdf
    • https://cdn.shopify.com/s/files/1/0429/8889/6415/files/71977699658.pdf
    • https://cdn.shopify.com/s/files/1/0430/4915/6757/files/57468364853.pdf
    • https://cdn.shopify.com/s/files/1/0433/5229/3541/files/44254158385.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92702877098.pdf
    • https://cdn.shopify.com/s/files/1/0430/4293/0842/files/kijilotavaluk.pdf
    • https://cdn.shopify.com/s/files/1/0433/2689/8344/files/16105529837.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/58302836163.pdf
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/niberejivo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5955/2155/files/maremafudukas.pdf
    • https://cdn.shopify.com/s/files/1/0434/1448/7207/files/xafelibe.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_off00007197.bin
0e3eabe76d5b6b015f3917366b10995150283e7c44013a84266dec15935f573f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7197 5152 bytes
font_01_sfnt_off0000830e.bin
9d876cb2af462c6563dac42a8ffd7c0e70dfff933845f5e58355fab27e524784		 pdf-font-stream PDF embedded font (sfnt) at offset 0x830E 9908 bytes

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