Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a3a0083dd8fca3f…

MALICIOUS

PDF

52.7 KB Created: 2020-08-18 16:57:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01205bab0c75ddbfaaa14ce895d65f6e SHA-1: 649ba673c3b4743de07b92610ea45c94a52caf7c SHA-256: 9a3a0083dd8fca3f8d0b0a42c38fa3c1346479fd9d3a6d700c9f65782c959a63
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The presence of a 'download button' lure reinforces this. The primary malicious IOC is the redirector URL which likely leads to further malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ameloblastoma+a+rare+case+report
    • http://files.kelownavacationseasonalrentals.com/uploads/1/3/0/7/130738912/koxofigoraxatoviteb.pdf
    • http://files.root2riseyogaandfitness.com/uploads/1/3/0/7/130776088/7716605.pdf
    • http://files.thesociablehome.com/uploads/1/3/1/4/131437601/4a673cfb1c406f.pdf
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/50594625964.pdf
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/zara_bedding_size_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/5481/6665/files/zirovamimuxipugavurotir.pdf
    • https://cdn.shopify.com/s/files/1/0430/3772/0733/files/8208550153.pdf
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/jedeginamimototudujizari.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/67077081524.pdf
    • https://cdn.shopify.com/s/files/1/0449/7191/7471/files/asean_regional_forum.pdf
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/bibezadezot.pdf
    • https://cdn.shopify.com/s/files/1/0459/9126/4413/files/ashe_guide_9._15.pdf
    • https://cdn.shopify.com/s/files/1/0434/1481/4882/files/24283438664.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_off00008bad.bin
750b0fcc80caa7d09cf47101cc29d36510494cb4107ec373494aa870d36c2e25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BAD 5208 bytes
font_01_sfnt_off00009d3f.bin
959bf32e35592bbdba3fd2115098fc9a40e3e54b3c07c3123f26b3169917b756		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D3F 12432 bytes

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