Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed84833ff330a7b7…

MALICIOUS

PDF

40.8 KB Created: 2020-08-10 02:14:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ee4591ec473b982ad1515cee5c3f207 SHA-1: 9a6d85133ac6156b6011727476fa74056a785623 SHA-256: ed84833ff330a7b7e3c3d6872e409e327c6f14e954aca607101f424f3e878948
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=ambush+paragraph+book+pdf. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on Shopify, suggesting a link farm or redirection scheme. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=ambush+paragraph+book+pdf
    • http://jadibejuz.dallingranch.com/uploads/1/3/1/0/131069934/posedudatig_fononur_totitibudo_danujik.pdf
    • http://files.mollymillerstories.com/uploads/1/3/2/7/132710776/gusolubojivad.pdf
    • http://files.editiononegallery.com/uploads/1/3/2/7/132741029/e6e467d0fb7.pdf
    • http://files.trianglewaterpartnership.org/uploads/1/3/2/6/132696263/1902638.pdf
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/34734920016.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/git_branch_name_rules.pdf
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/zuxedorujixuwufekuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/0392/8991/files/shaun_t_workout.pdf
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/87220145578.pdf
    • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/kawurivugivegu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/ponedomiveza.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3602/files/wexonewabefiwine.pdf
    • https://cdn.shopify.com/s/files/1/0431/9536/7585/files/bewobiratifupunubasusa.pdf
    • https://cdn.shopify.com/s/files/1/0433/5337/4874/files/38794602088.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_off00005fda.bin
3dee75ab027f3bf6b2ed1980aeceef6d5b38b1f0815d6b4529af6badf1c1e7f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDA 5616 bytes
font_01_sfnt_off000072c2.bin
e9ab892274c15540233636e161ba702adde336a33ff085fe5b6479dabfa8d2cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C2 10572 bytes

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