Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdd669d851752c56…

MALICIOUS

PDF

53.3 KB Created: 2020-08-20 11:23:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 785875b6f56b4b98c0f1998421d462b5 SHA-1: a3bb8e1ce4f85e3658c2cf1d9b0fd3a66d2d4886 SHA-256: cdd669d851752c564bc832725df31a2d3b5ced596e75566d91667ca697cf644b
148 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'formal dress patterns' and includes the malicious URL, suggesting a lure. The presence of a 'callback phishing phone lure' heuristic further supports a phishing or scam intent. The file is identified as a PDF with a malicious redirector and a link farm, indicating an attempt to drive traffic to malicious infrastructure.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.com/pify?keyword=a+line+formal+dress+patterns
    • http://xixub.carolynnyounghusband.com/uploads/1/3/0/8/130814448/nakodarab.pdf
    • http://melexipiz.bulverdepregnancy.net/uploads/1/3/0/7/130776394/3704817823de.pdf
    • http://files.annaparkernaples.com/uploads/1/3/0/7/130739919/8324550.pdf
    • http://perir.virtualracesusa.com/uploads/1/3/0/8/130814328/gizureburibogat-pugigazarako-diwokov-detawomarezo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/86187089948.pdf
    • https://cdn.shopify.com/s/files/1/0441/3584/1944/files/xesavokixejuxidexekeguxi.pdf
    • https://cdn.shopify.com/s/files/1/0440/3062/3894/files/birth_certificate_amravati_municipal_corporation.pdf
    • https://cdn.shopify.com/s/files/1/0461/0723/0371/files/44395823009.pdf
    • https://cdn.shopify.com/s/files/1/0437/6713/6413/files/59933854428.pdf
    • https://cdn.shopify.com/s/files/1/0432/3672/0808/files/96309824694.pdf
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/sijaruwinefojuju.pdf
    • https://cdn.shopify.com/s/files/1/0432/8289/0912/files/dorn_baldur_s_gate.pdf
    • https://cdn.shopify.com/s/files/1/0434/3444/2908/files/emotions_worksheets_for_preschoolers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/balevogigadan.pdf
    • https://cdn.shopify.com/s/files/1/0435/2642/2687/files/kaganapan_ng_pandiwa.pdf
    • https://cdn.shopify.com/s/files/1/0434/3644/1767/files/stoner_s_cookbook.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_off00008ae7.bin
b6fa6a84c81151cdbc317cb8f1da2e0f5301198dddb258e64786afcf6658a5db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE7 5176 bytes
font_01_sfnt_off00009c5f.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C5F 1800 bytes
font_02_sfnt_off0000a4ec.bin
a6f6894008f67e80c20101909b441a0a7fb6927b13afc387c80988b4d5561854		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4EC 10192 bytes

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