Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab8925481a36f18…

MALICIOUS

PDF

78.7 KB Created: 2020-08-31 20:40:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c7224e3c55b16eb5c8191fd37c9b6faa SHA-1: 8accfadaec7ffa8a9174d4edcd960229c105c5ae SHA-256: dab8925481a36f18feaa545bcb31039d153ad8df7728083a5b037a5c7d67d474
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link and a lure for a payment redirection, indicating a phishing attempt. The document body, though heavily obfuscated, contains the malicious URL. The presence of a download button lure further supports the phishing attack pattern. No scripts were extracted, limiting the analysis of the payload.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.link/wix?keyword=free++basecamp+garmin+for+windows+7
    • https://cdn.shopify.com/s/files/1/0433/0727/0297/files/44697404650.pdf
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/medication_adherence_rating_scale_mars.pdf
    • https://cdn.shopify.com/s/files/1/0429/5580/0739/files/boughton_leigh_junior_school_uniform.pdf
    • https://static.usrfiles.com/ugd/02beb7_8d0014545bba47e28c5af83ea2d47cbd.pdf
    • https://static.usrfiles.com/ugd/0aab01_2e72bff48fac41b7bc4125859e544618.pdf
    • https://static.usrfiles.com/ugd/d3758e_ae9ec1fb98ee45d6b0e9dd81338bd107.pdf
    • https://static.usrfiles.com/ugd/c0fca2_a043d261a003416ba611d3c623a89be1.pdf
    • https://static.usrfiles.com/ugd/76156b_b46bfb99ad624389b7d5ac2d5e141718.pdf
    • https://static.usrfiles.com/ugd/60933b_94d0eb02c3f54b2aada20cd777963426.pdf
    • https://static.usrfiles.com/ugd/9374a7_d0f69351edc34873a4b83108a6a2f118.pdf
    • https://static.usrfiles.com/ugd/3eed2b_85ec92ef677c4729bb7ebe3baa8b9529.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_off0000f658.bin
67993a688fb89071a442b683fc205ffb9b4a40bdb56ecfd50fa0a80ab2c00178		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF658 5712 bytes
font_01_sfnt_off000109ce.bin
414c7380d91b2d53a9971b7c7f4ff2f0c1a7e439534c6749bc60812a7fedfc27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109CE 10560 bytes

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