Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c143c657297039a…

MALICIOUS

PDF

51.7 KB Created: 2020-08-09 04:37:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6580af2fb6cced494e8b72559ef7edd6 SHA-1: d60f87419563b7acb0b6ad059ae07513cdd7c020 SHA-256: 2c143c657297039aed6d8ec5eb86d3a05b85ceafdb5a072c9dfc3b6817631330
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Federal supreme court cassation decision', suggesting a lure to trick users into clicking the malicious link. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a probable 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=federal+supreme+court+cassation+decision+volume+20+pdf
    • http://numofumi.4-states-irrigation.org/uploads/1/3/1/6/131636725/13374dd19d.pdf
    • http://rafezatog.python-blue.com/uploads/1/3/1/6/131606289/e49c571bf.pdf
    • http://files.plkpbsd.org/uploads/1/3/2/6/132682607/6958026.pdf
    • http://binodikax.cottonwoodendo.com/uploads/1/3/0/7/130775607/70c17e9d63e4a.pdf
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/40358150998.pdf
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/6787479180.pdf
    • https://cdn.shopify.com/s/files/1/0434/5954/3192/files/84073967208.pdf
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/44887594264.pdf
    • https://cdn.shopify.com/s/files/1/0450/0927/2990/files/xeliwalujebato.pdf
    • https://cdn.shopify.com/s/files/1/0437/1739/4586/files/85955592397.pdf
    • https://cdn.shopify.com/s/files/1/0432/7417/4624/files/2187331263.pdf
    • https://cdn.shopify.com/s/files/1/0433/0281/3849/files/function_prototype_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0429/5180/3033/files/16182351054.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/53523442413.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/
    • https://cdn.shopify.com/s/files/1/0430/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008996.bin
596bc7f2f7a8deb98dda23fa70e6e7f9099e18e22f650e9864780ce7dc874718		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8996 5592 bytes
font_01_sfnt_off00009c90.bin
e4d7221ec14b47e18e4da2b7951c1e8b55ff80328fde892e2ba69545d79dea67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C90 11368 bytes

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