Malicious PDF — malware analysis report

Static analysis result for SHA-256 c64bbefa0e619a7f…

MALICIOUS

PDF

64.4 KB Created: 2020-08-22 23:13:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92bb4087c8cf67c6bca8b99b38285cd0 SHA-1: 902f34b08f7ea6f0623a96ddd46becd9d24020c8 SHA-256: c64bbefa0e619a7f56a00a0e52f9466e62c750a819ed1fa9cc78e24ca5600c2b
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 benign-looking documents hosted on Shopify. However, one critical heuristic identified a link to a known malicious redirector, ttraff.com. This suggests the document is part of a link farm designed to obscure the ultimate malicious destination. The presence of the malicious redirector URL indicates a phishing or social engineering attempt to lead the user to harmful 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=jdbctemplate+callablestatement+rowmapper
    • http://lupodenop.berksonrealty.com/uploads/1/3/2/7/132740214/1944928.pdf
    • http://rusigepok.kamaroufi.com/uploads/1/3/2/6/132682156/63b6a2d1a0.pdf
    • http://notafaxep.cityofhopechurch.org/uploads/1/3/0/9/130969761/09a7c352cd.pdf
    • https://cdn.shopify.com/s/files/1/0433/2106/5640/files/application_for_child_passport.pdf
    • https://cdn.shopify.com/s/files/1/0437/5976/3617/files/direct_vs_indirect_cash_flow.pdf
    • https://cdn.shopify.com/s/files/1/0439/4146/2174/files/upper_in_python.pdf
    • https://cdn.shopify.com/s/files/1/0435/5774/8897/files/organisation_of_shoot_apical_meristem.pdf
    • https://cdn.shopify.com/s/files/1/0437/5796/1374/files/43857041511.pdf
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/lasuwivujabepodaja.pdf
    • https://cdn.shopify.com/s/files/1/0438/2821/5968/files/neet_biology_practice_papers.pdf
    • https://cdn.shopify.com/s/files/1/0437/0412/3557/files/xefokegemagazetub.pdf
    • https://cdn.shopify.com/s/files/1/0432/5366/1851/files/24376703313.pdf
    • https://cdn.shopify.com/s/files/1/0437/9885/5840/files/20_lectures_on_algorithmic_game_theory.pdf
    • https://cdn.shopify.com/s/files/1/0428/0349/5071/files/osteomyelitis_guidelines_idsa.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_off0000b098.bin
3ed965604fdfb95610b247b412a3e9f08603dac63e18f76add55fd71408e38ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB098 5440 bytes
font_01_sfnt_off0000c309.bin
46db861a782630de7ff34a30e689171ec21a9f0b3066d3557acf85f4756b0cc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC309 16148 bytes

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