Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de7d18b20360519…

MALICIOUS

PDF

43.1 KB Created: 2020-08-21 12:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bbf61d2f782348604dd028f8c5ece0a3 SHA-1: 24eb20c6db212b929a73709afc4792268af8d729 SHA-256: 4de7d18b20360519f9749df6825ed24d9d658a7dbb227a5a60103c25d3c70531
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm. One of these links leads to a redirector URL, 'https://ttraff.com/pify?keyword=garmin+basecamp++windows+8', which is flagged as malicious. This suggests the document is designed to direct users to malicious content, likely for phishing or malware delivery. The presence of a 'download button' heuristic further supports a lure-based attack pattern.

Heuristics 4

  • 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.
  • 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=garmin+basecamp++windows+8
    • http://files.currantcreekoutfitters.net/uploads/1/3/1/4/131406662/kuruditomum.pdf
    • https://cdn.shopify.com/s/files/1/0435/8701/0715/files/jovaverenofikarab.pdf
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/45741424508.pdf
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/sebaximatab.pdf
    • https://cdn.shopify.com/s/files/1/0430/3811/3955/files/ziwekodibonodomuniti.pdf
    • https://cdn.shopify.com/s/files/1/0430/1642/1529/files/euclidean_algorithm_examples.pdf
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/81372546787.pdf
    • https://cdn.shopify.com/s/files/1/0430/7150/4537/files/jataloferikopadesuxek.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/9426277119.pdf
    • https://cdn.shopify.com/s/files/1/0431/1675/7153/files/anime_pose_reference.pdf
    • https://cdn.shopify.com/s/files/1/0431/1177/6416/files/suwekibesuze.pdf
    • https://cdn.shopify.com/s/files/1/0432/6329/5650/files/auto_tune_efx_crack_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/icy_veins_ret_paladin_talents.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_off000068ba.bin
f411bee881c8825cc5a2d7d3c6e347b2cc1e2048cb59124f7a6399c2d69eaf0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68BA 5644 bytes
font_01_sfnt_off00007be2.bin
dbbdefdb43fc630b9cd7c96758a573ad4dd634d7cf8f4a17bb2666810c760858		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE2 10720 bytes

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