Malicious PDF — malware analysis report

Static analysis result for SHA-256 a357f48a0d004658…

MALICIOUS

PDF

45.5 KB Created: 2020-08-14 16:39:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bc7977e38fc3cab35e366b7493c3d2a SHA-1: 43c7795a912d6e036c92888caeb0348673f21f04 SHA-256: a357f48a0d004658d2717b2a6b8c8e60a5763c78129a611f2bbd4019723fccfd
128 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'free disney luggage tag template' and the malicious URL, suggesting a lure to entice users to click the link. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, further supporting the malicious redirection attempt.

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.com/pify?keyword=free+disney+luggage+tag+template
    • http://desavopo.archaeoacousticsscotland.org/uploads/1/3/1/6/131637047/fuluwez.pdf
    • https://cdn.shopify.com/s/files/1/0434/2359/6711/files/1587359507.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/adobe_illustrator_cc_2020.pdf
    • https://cdn.shopify.com/s/files/1/0435/6230/3637/files/spanish_numbers_practice_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0446/2444/5603/files/kugobebub.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/durinozube.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/cz_82_for_sale.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/vanilla_twilight_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/3420/5590/files/amumu_support_build.pdf
    • https://cdn.shopify.com/s/files/1/0436/4288/0160/files/dbms_mini_project_report.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_off00006b8c.bin
b2c544afad6b19b089dd581e594e6ed051c24747ad68a23ab6fac465db2dfba4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B8C 5336 bytes
font_01_sfnt_off00007d9b.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D9B 1800 bytes
font_02_sfnt_off00008629.bin
b99a5eb3eddf29794cecf8f7166aa90c8c40855bd8d136e9be120529432e008d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8629 10300 bytes

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