Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aecc0460e8c8932…

MALICIOUS

PDF

37.1 KB Created: 2020-08-19 14:26:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fc09d0ee320d4a7716f131a79c621a8 SHA-1: fe19cf088137c4142e0ccae9bd4aa9d6656aa466 SHA-256: 8aecc0460e8c89326d256156c5d9ff70271f609e72525ee067dc36fb35fa24c8
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search engine results, directing users to a malicious redirector at 'https://ttraff.com/pify?keyword=greenside+primary+school+ofsted+report'. This suggests a phishing or credential harvesting campaign. The document body, though heavily obfuscated, contains text related to an 'Ofsted report' and the authoring application 'wkhtmltopdf', reinforcing the lure. No scripts were extracted from this sample.

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=greenside+primary+school+ofsted+report
    • http://files.thenutritionists.ca/uploads/1/3/0/7/130775379/a1b2bf9b5.pdf
    • http://files.imajicatheatrecompany.co.uk/uploads/1/3/0/7/130775543/sapidovomoxixop-mizuxa-rorekineluwukim-laguwa.pdf
    • http://files.wacc.co.nz/uploads/1/3/1/4/131408741/kebopidonetip_wurirewem.pdf
    • http://files.pack23scouts.com/uploads/1/3/1/3/131397973/ratowibur.pdf
    • http://files.joymcdanieldance.net/uploads/1/3/1/3/131379443/kitajanaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/3519/6568/files/1478173478.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/7789513209.pdf
    • https://cdn.shopify.com/s/files/1/0435/3330/3976/files/gisiwovo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6022/3382/files/84667312547.pdf
    • https://cdn.shopify.com/s/files/1/0438/8595/3192/files/dharmayoddha_kalki_avatar_of_vishnu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kamunikizesow.pdf
    • https://cdn.shopify.com/s/files/1/0429/1300/5724/files/27775684099.pdf
    • https://cdn.shopify.com/s/files/1/0436/2688/9369/files/52927518648.pdf
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/22254238704.pdf
    • https://cdn.shopify.com/s/files/1/0429/8761/8463/files/daxipu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3883/3816/files/nelixelopakinemugajude.pdf
    • https://cdn.shopify.com/s/files/1/0432/9439/2485/files/raturibibufofoge.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_off000046ee.bin
f5fc83d3747800bc39aeb698ba50ba10b6e64423b4bf578aff248d668deb50f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x46EE 5316 bytes
font_01_sfnt_off000058cf.bin
242c8cd749550d649b7925276db39402c8d65185d7bbfd7ed61d45f1bacfadae
pdf-font-stream PDF embedded font (sfnt) at offset 0x58CF 9492 bytes
font_02_sfnt_off00007937.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7937 4324 bytes