Malicious PDF — malware analysis report

Static analysis result for SHA-256 85fa5de8fb14bcdd…

MALICIOUS

PDF

52.8 KB Created: 2020-08-18 17:55:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 822614d0acd3f7d3427ac7e6e29f3143 SHA-1: 918980a95ee881eb21aa1ef4d162ccf5cc54c150 SHA-256: 85fa5de8fb14bcdd90b9a09097fa22f62b770341896980aec08ddac0fcccff63
120 Risk Score

Malware Insights

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

The PDF file contains numerous links to external resources, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains a URL that points to a redirector service. This suggests the primary intent is to redirect the user to malicious content, likely for phishing or malware distribution, disguised as a business plan template.

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=car+repair+business+plan+template
    • http://files.stgeorgecountrydancing.com/uploads/1/3/1/4/131407080/3562928.pdf
    • http://files.teaysvalleyfire.com/uploads/1/3/1/3/131380052/6576158.pdf
    • http://files.shureunderwater.com/uploads/1/3/2/8/132814949/8479f5.pdf
    • http://files.monmouthfppa.com/uploads/1/3/0/7/130739238/af2cb0a8c3b.pdf
    • http://files.naomibourque.com/uploads/1/3/0/8/130813427/5235001.pdf
    • https://cdn.shopify.com/s/files/1/0447/3955/9578/files/ridiwirefojomenabovisujet.pdf
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/kopofuziregebusezuduvab.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/37667917211.pdf
    • https://cdn.shopify.com/s/files/1/0437/4659/0872/files/statistical_process_control_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/69433921109.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7064/files/35814614219.pdf
    • https://cdn.shopify.com/s/files/1/0433/5848/6678/files/talagexizeboxikinipeze.pdf
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/arabesque_no_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/hamara_quetta_fa_fsc_date_sheet_2019.pdf
    • https://cdn.shopify.com/s/files/1/0430/8199/0295/files/22466335736.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_off0000923d.bin
692f14e13c18f6518f274ac47e58376a01b79d3925ee5208abe4049974479a4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x923D 5012 bytes
font_01_sfnt_off0000a323.bin
6e19112aa6c0d80b0d75c2481756da1b57400329b96a6026a12233be3b3eeea9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA323 10248 bytes

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