Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8e612e3b7d21c48…

MALICIOUS

PDF

41.1 KB Created: 2020-08-01 19:37:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89c8a27f3f495862277d77fb354b0ee0 SHA-1: 7afa6ffa89e346d6ab972ea507f46e508327c7ae SHA-256: f8e612e3b7d21c48895e530df541b29e514fd35d1175cd10158c99a205518c46
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous links hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or engage in SEO abuse. The document body contains a URL that appears to be the initial lure for the malicious redirect.

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=vmware+workstation+15+download
    • http://files.armstrongchoirs.org/uploads/1/3/1/6/131606652/fejofabujizuzi.pdf
    • http://files.healingher.co/uploads/1/3/0/8/130813100/5453049.pdf
    • http://files.newleaforganizingllc.com/uploads/1/3/1/8/131857071/6418065.pdf
    • http://files.kayibmaedesigns.com/uploads/1/3/1/8/131871871/wofijeru.pdf
    • http://files.legendsgolfclub.org/uploads/1/3/0/7/130739101/6759429.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/mimuzamufanobexeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/0591/0935/files/maweratoselirixetivejebe.pdf
    • https://cdn.shopify.com/s/files/1/0430/7730/4481/files/2016_ford_escape_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/1783/7467/files/16150260181.pdf
    • https://cdn.shopify.com/s/files/1/0436/0998/1085/files/lekizowivaje.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93236297381.pdf
    • https://cdn.shopify.com/s/files/1/0434/6881/6544/files/musodev.pdf
    • https://cdn.shopify.com/s/files/1/0431/9520/3745/files/kevawovazutadixaman.pdf
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/zesisulijexokobalemokup.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/dikab.pdf
    • https://cdn.shopify.com/s/files/1/0434/4774/6710/files/rulonejomomix.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_off00006340.bin
6be6fa49be20173f6f21229e936069d981020226dfeb524c777aa5f4f693a128		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6340 5268 bytes
font_01_sfnt_off00007533.bin
f927c29b681981517e65314a523f1e7d9592512213ef93dfde745fd19fb5bcd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7533 10084 bytes

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