Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2f0d59c2ef690c6…

MALICIOUS

PDF

41.7 KB Created: 2020-08-18 21:02:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4104b15f7f51a1a27efc93f013dfe67e SHA-1: 523027024f611c5a3d2fc7ecd44084cb0a8d00d6 SHA-256: d2f0d59c2ef690c6f8f2760d611c1d98ab15972bee71516edc03a0872b7ff0a4
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=h+love+k+whatsapp+status', leads to a link farm hosting numerous PDFs, as indicated by another critical heuristic. The primary purpose appears to be directing users to potentially malicious content through a deceptive lure.

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=h+love+k+whatsapp+status
    • http://files.nocolonnoworries.com/uploads/1/3/0/7/130775171/0f39929.pdf
    • http://files.evil-dog.com/uploads/1/3/0/7/130775470/lotolamuzebiw.pdf
    • http://gasugumi.scottishpinesrehab.com/uploads/1/3/0/8/130874064/dulufefidebas.pdf
    • http://files.crossfitsouthforney.com/uploads/1/3/1/3/131398347/3201393.pdf
    • http://files.caymanease.org/uploads/1/3/0/8/130813644/zejuw.pdf
    • https://cdn.shopify.com/s/files/1/0440/1407/6069/files/regular_expression_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/jajuviga.pdf
    • https://cdn.shopify.com/s/files/1/0433/2381/8139/files/7524734899.pdf
    • https://cdn.shopify.com/s/files/1/0430/8094/1729/files/allen_asat_sample_papers.pdf
    • https://cdn.shopify.com/s/files/1/0431/7036/5589/files/busowubesufimixa.pdf
    • https://cdn.shopify.com/s/files/1/0440/8187/3048/files/35225433981.pdf
    • https://cdn.shopify.com/s/files/1/0431/7731/2405/files/59898855693.pdf
    • https://cdn.shopify.com/s/files/1/0434/1910/7480/files/fakomosod.pdf
    • https://cdn.shopify.com/s/files/1/0432/6549/1107/files/fufunapabuxubefavadapaves.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_off00006758.bin
54e554e56b0a8d9517e7eb034e3d26212997f9a8f5afd7fa05f8b650802b427b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6758 4988 bytes
font_01_sfnt_off0000785e.bin
cd8bd03cd61e84807e0d2556999cf616fd1eaa2adc89701fa683397776c0c987		 pdf-font-stream PDF embedded font (sfnt) at offset 0x785E 9964 bytes

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