Malicious PDF — malware analysis report

Static analysis result for SHA-256 56ee07202a3a94c1…

MALICIOUS

PDF

40.6 KB Created: 2020-08-24 16:58:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b091f8a38db9e2bdad48a345eaabb369 SHA-1: 2c4d8d6de46f62d1d940b0b0e7a4890e316d1fa2 SHA-256: 56ee07202a3a94c186794d50135cd75eb064834453da21573d63869189b08647
150 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a high ML score and the presence of a critical heuristic firing for a malicious redirector link. The document body contains numerous embedded URLs, with the primary redirector being ttraff.com. This suggests a phishing or redirection attack where the embedded links are intended to lead the user to a malicious site, likely for credential harvesting or malware delivery.

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=bye+bye+baby+song
    • http://files.dedosdoamerica.com/uploads/1/3/1/0/131070792/guzan-ligaledakuf-sugegiwaxemude-wukalemub.pdf
    • http://files.awakeningofthegods.com/uploads/1/3/1/4/131453177/golisalinamuvik_wunov_zudap_dosalibaje.pdf
    • https://cdn.shopify.com/s/files/1/0431/9235/2931/files/nurazedumonadoperuxa.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/99320226057.pdf
    • https://cdn.shopify.com/s/files/1/0429/7683/7785/files/kuvazepofigedixubonej.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/93754742424.pdf
    • https://cdn.shopify.com/s/files/1/0434/6268/8918/files/vafodep.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/23099255513.pdf
    • https://cdn.shopify.com/s/files/1/0434/1540/4702/files/voicemeeter_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0431/4542/9160/files/zigujijikaf.pdf
    • https://cdn.shopify.com/s/files/1/0438/5731/3957/files/anaphylaxis_management_plan_form.pdf
    • https://cdn.shopify.com/s/files/1/0434/9159/0308/files/molibifalidabugusobap.pdf
    • https://cdn.shopify.com/s/files/1/0461/4271/8115/files/veterans_day_worksheets_for_highschool_students.pdf
    • https://cdn.shopify.com/s/files/1/0433/7968/7587/files/jojesofifuvubopuxalo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/tuty_alawiyah.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_off0000619c.bin
18ea78ea852ca612cc243eceb51550264aa3bb90c6937cd9a65383d377f9fbc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x619C 5016 bytes
font_01_sfnt_off000072cd.bin
6bba7b5eb3886258b62acf71bbbaf171ec8bf4a9fb2cc846763b349fa60b0478		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72CD 10264 bytes

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