Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a34fb3552301177…

MALICIOUS

PDF

38.3 KB Created: 2020-08-15 01:31:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92c379ce9fd3ab9cfc4213cd5a5be53c SHA-1: 49b865cce3f4d0d9880529eefc86ff12b3a1013a SHA-256: 1a34fb35523011777fb4c76bf36add13caf634a31d97011454a6f5fdf48fc8e1
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one prominent link pointing to a known malicious redirector. The document body, though partially corrupted, suggests a lure for 'Luminar 4 user guide'. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for malicious content or to obscure the true destination. The primary malicious URL is https://ttraff.cc/pify?keyword=luminar+4+user+guide, which likely serves as a gateway to further malicious content or phishing pages.

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.cc/pify?keyword=luminar+4+user+guide
    • http://baguxe.shore2shoretravel.com/uploads/1/3/0/7/130776046/temivirakinol_gowokivu_kujaku.pdf
    • http://files.whitepeacockcoffee.com/uploads/1/3/1/4/131436971/7dad80.pdf
    • http://gafikeve.flourishphd.com/uploads/1/3/1/1/131164132/57ab1054.pdf
    • https://cdn.shopify.com/s/files/1/0437/0078/1208/files/virology_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/sixikofetaxanojemunamise.pdf
    • https://cdn.shopify.com/s/files/1/0432/9416/3109/files/mobifigikel.pdf
    • https://cdn.shopify.com/s/files/1/0437/8843/5613/files/vobizik.pdf
    • https://cdn.shopify.com/s/files/1/0431/6482/7805/files/advanced_materials_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/aircraft_design_a_systems_engineering_approach_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/87155989766.pdf
    • https://cdn.shopify.com/s/files/1/0432/6565/4939/files/bifapoxumajilonaladur.pdf
    • https://cdn.shopify.com/s/files/1/0429/4085/8527/files/59905834248.pdf
    • https://cdn.shopify.com/s/files/1/0448/8052/7527/files/72267767487.pdf
    • https://cdn.shopify.com/s/files/1/0430/7563/3306/files/20471428650.pdf
    • https://cdn.shopify.com/s/files/1/0432/0873/6928/files/kezokinixeposezijole.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_off0000586d.bin
accbaffe1a36c4d2d135a4b108d73cbb960efe496d29824246b4c6bfdb87b75a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x586D 5140 bytes
font_01_sfnt_off000069cc.bin
e5ab8d78311abf722dcc6b6bbb03b0c39486bc11d35403bf4a55f0afb3879681		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69CC 10232 bytes

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