Malicious PDF — malware analysis report

Static analysis result for SHA-256 e46833d1f9563cd1…

MALICIOUS

PDF

70.6 KB Created: 2020-08-18 22:18:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b3ac8b0fff2cb788e295e64f0764a49 SHA-1: 2a542bf06bf87a43d3e49bc5e5c98e6272d4b25f SHA-256: e46833d1f9563cd1dbb111c8f0bc9e74ac14b14997b8e5f88383590bcaf77921
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the text 'Honeywell air purifier manual 50250' and the malicious URL, indicating a lure to trick users into clicking the link. The presence of a PDF link farm heuristic further suggests a campaign distributing malicious links via PDFs. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=honeywell+air+purifier+manual+50250
    • http://wagexi.rinconcasa.com/uploads/1/3/0/7/130775413/zudawimuxi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2050/1660/files/toyota_sienna_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/4320/9895/files/80149408303.pdf
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/swot_analysis_example.pdf
    • https://cdn.shopify.com/s/files/1/0431/6571/2535/files/17571525180.pdf
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/airmail_special.pdf
    • https://cdn.shopify.com/s/files/1/0436/9183/5547/files/mozafijipuwox.pdf
    • https://cdn.shopify.com/s/files/1/0437/3970/9589/files/sikerikis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/meragavafeduxilaxopuxaw.pdf
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/astronomy_and_astrophysics_journal.pdf
    • https://cdn.shopify.com/s/files/1/0429/4246/4163/files/38844152751.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd15.bin
f4e1d25c0252d91ef95b26a09f77cec2353c3f5e697de7aa2e997e3ca4da1b0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD15 5420 bytes
font_01_sfnt_off0000df83.bin
246569b5fd7226bd0ebf3c016de7ba0bf82e996896d660a08030b2af0a08efd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF83 1936 bytes
font_02_sfnt_off0000e8c4.bin
33b344c46f8840de011ccb7a8de4e6a3c8debe185d835d2f14a25fa850885c57		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C4 10652 bytes

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