Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd3abca75c726fef…

MALICIOUS

PDF

47.1 KB Created: 2020-08-19 08:42:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c0e1afb1f60a5d5827bc655b620f958 SHA-1: 96e948f5bb76ee48d0474062e34007f4f1587ad8 SHA-256: cd3abca75c726fef68c78641e88ed87f3cdc84a0777a3d3636f0f705a2e9e107
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to shopify.com domains and one critical link to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=apa+format+citation+microsoft+word+2010', suggesting a lure related to academic citation formatting. The presence of numerous PDF links, including one to a malicious redirector, indicates an attempt to lead the user to harmful content.

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.cc/pify?keyword=apa+format+citation+microsoft+word+2010
    • http://dodota.thehipaaman.com/uploads/1/3/0/9/130969953/tifapoxujerakujuwol.pdf
    • http://tivav.joyandjoebaby.com/uploads/1/3/1/8/131858661/1103627.pdf
    • http://files.fcproducts.co.za/uploads/1/3/1/3/131379510/woneriratezefiwe.pdf
    • https://cdn.shopify.com/s/files/1/0444/7302/4679/files/netidutiwopizajezotu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1652/6752/files/possessivpronomen_im_dativ.pdf
    • https://cdn.shopify.com/s/files/1/0437/2905/9994/files/fipasuzevuzub.pdf
    • https://cdn.shopify.com/s/files/1/0433/4324/9576/files/acting_for_the_camera_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0557/files/classroom_management_techniques_cambridge.pdf
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/geputa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/24375498268.pdf
    • https://cdn.shopify.com/s/files/1/0427/6980/9564/files/najaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/2724/2903/files/66185122618.pdf
    • https://cdn.shopify.com/s/files/1/0430/5430/1338/files/2804423942.pdf
    • https://cdn.shopify.com/s/files/1/0438/5931/2800/files/wixutudabarowakesipegawat.pdf
    • https://cdn.shopify.com/s/files/1/0435/0862/9659/files/ruribijibivuserit.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/20040375180.pdf
    • https://cdn.shopify.com/s/files/1/0433/7103/6822/files/dowinezefulawodawilogo.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_off00006cd3.bin
56e4ecb2ef17fab383989202b119d63c5d968e6030aff37990ccb11a876a0f87
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD3 5344 bytes
font_01_sfnt_off00007eec.bin
c7f3c72313998fb044542bc989c6c95bf8bc675a485a7d9e9153535b8798e9f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEC 10044 bytes
font_02_sfnt_off0000a13a.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA13A 4324 bytes