Malicious PDF — malware analysis report

Static analysis result for SHA-256 412b0ae0f2570409…

MALICIOUS

PDF

43.5 KB Created: 2020-08-24 18:49:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c365192e8e41bc2d65692f78c19e8194 SHA-1: e9c71efb859e9de0b5cdcec0ef91ffe6129e2725 SHA-256: 412b0ae0f25704096179f84d5b03c98c6a7f28a17e94c5b9aa0131e1ec1023e0
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external sites. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.com/pify?keyword=bleacher+report+new+england+patriots'. The document body, though heavily obfuscated, also contains this URL and other Shopify URLs, suggesting a link farm designed to drive traffic to malicious sites. The ML classifier strongly supports the malicious nature of this PDF.

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=bleacher+report+new+england+patriots
    • http://files.wordoflifemn.org/uploads/1/3/2/7/132740525/kozabepimojix-datarakawud.pdf
    • http://files.creatovative.com/uploads/1/3/1/4/131453401/pametoxiro_jadorupa_sasobisedipu.pdf
    • http://wesebado.katieanastas.com/uploads/1/3/1/8/131856543/bataxi.pdf
    • http://files.alondraparkchessclub.com/uploads/1/3/0/7/130738984/likoki.pdf
    • http://files.keithking.org/uploads/1/3/1/4/131411688/sewaropajutes.pdf
    • https://cdn.shopify.com/s/files/1/0437/0700/7127/files/26369226348.pdf
    • https://cdn.shopify.com/s/files/1/0437/1234/8315/files/pujaxumilenowop.pdf
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/activity_diagram_in_uml.pdf
    • https://cdn.shopify.com/s/files/1/0428/9377/0919/files/badlapur_film_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0428/4029/3543/files/dan_poynter_parachute_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/5869/1237/files/36819141320.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85583151980.pdf
    • https://cdn.shopify.com/s/files/1/0436/1145/5645/files/call_center_mock_calls_script_samples.pdf
    • https://cdn.shopify.com/s/files/1/0432/0326/4667/files/luxaxizofo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7618/9346/files/40067705919.pdf
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/30995184270.pdf
    • https://cdn.shopify.com/s/files/1/0431/7587/0630/files/dijuwesarelu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.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_off00006a6d.bin
ad330df5ffcfcb74f8b940f3722319799ffc33f13a0b1c094f95227f209e8c6d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6D 5476 bytes
font_01_sfnt_off00007d11.bin
f367b6f22feacc57314696ca5d0af39e20e426cd85a59a0ea02428ba1741bea1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D11 10568 bytes