Malicious PDF — malware analysis report

Static analysis result for SHA-256 370e474ac9364d6d…

MALICIOUS

PDF

46.4 KB Created: 2020-08-10 19:57:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1262ab1279f223c9de97ec85cf4837c SHA-1: 632d236116911a57dc525599782d57007a6b431f SHA-256: 370e474ac9364d6def948e2fb45a6a4eb9e6eaf60ab6f590ddfb34688ec70c2a
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body also contains this URL, suggesting it's the primary lure. The PDF is likely designed to trick users into clicking this link, possibly by impersonating a legitimate software update, leading them to malicious infrastructure.

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=adobe+pdf+viewer+for+chromebook
    • http://files.mirroryourbrilliance.com/uploads/1/3/0/7/130776403/bolok_likokorix_xepejelepapeja_dodokugusozal.pdf
    • http://files.kimbrulay.com/uploads/1/3/0/7/130740367/davububodono.pdf
    • http://files.nourishmeantshop.com/uploads/1/3/0/7/130775380/jufuweroxobedub.pdf
    • http://files.andyprice.net/uploads/1/3/1/0/131070374/c87b05b31b.pdf
    • https://cdn.shopify.com/s/files/1/0433/7673/8462/files/2185492718.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/pdf_to_editable_word_converter_software_free_download_full_version.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6958/8124/files/xuzax.pdf
    • https://cdn.shopify.com/s/files/1/0429/5272/0543/files/82567998285.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/vosekanazibusovid.pdf
    • https://cdn.shopify.com/s/files/1/0429/9731/7783/files/pazewowokomopijeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/55883461272.pdf
    • https://cdn.shopify.com/s/files/1/0437/6562/9077/files/excel_for_mac_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/7446/0579/files/lonamosamaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/6635/9962/files/13134021198.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_off00007646.bin
772eaaf6415f487a4ebff82fc4f47a51106978c5843e03e2051ad6c10444cc0b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7646 5320 bytes
font_01_sfnt_off00008849.bin
52dcbb8dce1b32ed5d6ebaa09f526fe1dddb6f3ec5723ccae7a6e0e236a3657a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8849 10588 bytes