Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b8d62e8738d390a…

MALICIOUS

PDF

44.5 KB Created: 2020-08-31 03:02:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93113c697d6608839f00a730ac356ffd SHA-1: 06ccefcc7cf6127c4970807a3a8982632c424cf1 SHA-256: 4b8d62e8738d390ac47f6e3ac70c870c6ae4d32e72b7bbc27bb362e594d38090
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=tipos+de+oraciones+compuestas'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including one to 'https://cdn.shopify.com/s/files/1/0430/7383/1072/files/lisozemasuravukoduvi.pdf'. The document body, though partially garbled, also contains the malicious redirector URL, suggesting an attempt to lure users to a malicious site under the guise of educational material.

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/wix?keyword=tipos+de+oraciones+compuestas
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/lisozemasuravukoduvi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0460/8155/files/moxapizuvivowu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5881/5398/files/class_9_10_biology_book.pdf
    • https://static.usrfiles.com/ugd/bb13a2_efacf0b77b5046f6a6d7b07e94f34feb.pdf
    • https://static.usrfiles.com/ugd/299074_9e8135e5776741249ecaa76578287fe5.pdf
    • https://static.usrfiles.com/ugd/b27199_a101c258b3bf485d84a950bf9d765691.pdf
    • https://cdn.shopify.com/s/files/1/0437/9449/7698/files/anatomy_of_monocot_and_dicot_leaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/8233/3851/files/mk_pandey_analytical_reasoning_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/mosoterim.pdf
    • https://cdn.shopify.com/s/files/1/0431/6413/9674/files/html_template_free_bootstrap_4.pdf
    • https://cdn.shopify.com/s/files/1/0432/0165/9043/files/22420506448.pdf
    • https://cdn.shopify.com/s/files/1/0459/5659/5871/files/sagaduxosaduzisixovefunij.pdf
    • https://cdn.shopify.com/s/files/1/0430/6462/3265/files/90485482403.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_off00006d7b.bin
518bcd541a95f3115f37e842e62ec2aac8259a9a2d615f055bb1ce2e326e68d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7B 5136 bytes
font_01_sfnt_off00007ecf.bin
24c2db5afd0e62b82d50f15e94ebfc82e6f5c902fba736300ba13d05de38e895		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECF 11540 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.