Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae4112f5341ef687…

MALICIOUS

PDF

42.9 KB Created: 2020-08-28 06:32:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b11d9d4608e6acc63c3dbc85ac37bb75 SHA-1: eca721c702eeab71f600a714026067697f1fc7e9 SHA-256: ae4112f5341ef6871da388196529f6d8dfae85c2f07f8b4c067a3de6fc77e4ee
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=enfield+antique+clock, which is likely used to redirect the user to a malicious site. The document body contains garbled text but also includes the malicious URL, suggesting an attempt to disguise or obscure its true nature. The presence of a link farm further supports the malicious intent.

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.com/pify?keyword=enfield+antique+clock
    • http://bisojo.lodgefarmleisure.com/uploads/1/3/2/8/132815176/gizufolawigode.pdf
    • http://files.houseofgodusa1.com/uploads/1/3/1/0/131070151/kevijipasukepegexaj.pdf
    • http://wuworopiz.drumgownaschool.com/uploads/1/3/1/0/131070401/9353740.pdf
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/matrix_math.pdf
    • https://cdn.shopify.com/s/files/1/0465/0772/0854/files/board_size_guide.pdf
    • https://cdn.shopify.com/s/files/1/0439/3621/9291/files/50631051974.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3866/files/skyrim_ini_files_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/4138/0759/files/exemple_de_biographie_personnelle.pdf
    • https://cdn.shopify.com/s/files/1/0434/4489/5909/files/worevekavemabelepaxepegox.pdf
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/noxinizijojunobazuvub.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/ahk_auto_clicker.pdf
    • https://cdn.shopify.com/s/files/1/0432/1135/8369/files/transistor_biasing_and_stabilization_of_operating_point.pdf
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/73384417404.pdf
    • https://cdn.shopify.com/s/files/1/0429/5743/9129/files/ap_literature_and_composition_practice_test.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_off00006bee.bin
78f202113c93ec545372199a521c55113db47a7108cfe8ed6890b12c2a38b81e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEE 4888 bytes
font_01_sfnt_off00007ca3.bin
6c662227ecbc4791c2c3dd4080791216e602311a3f228b493aa1567dfcaa7d7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA3 10120 bytes

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