Malicious PDF — malware analysis report

Static analysis result for SHA-256 46490f2733abdd07…

MALICIOUS

PDF

46.2 KB Created: 2020-08-01 04:32:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 851b8d89f932bdda430ac357cf602565 SHA-1: 00d896b764da9f976a256d4b4b47f61100301a93 SHA-256: 46490f2733abdd079fa98e6b359ab0e57e2d1f1552e33655137b9e33694ffc69
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. It also fired for PDF_SEO_LINK_FARM, suggesting a large number of outbound links, many of which point to Shopify domains. The document body contains the URL https://ttraff.cc/pify?keyword=cristina+aguilera+not+myself+tonight, which is the primary malicious redirector. The file's purpose appears to be to drive traffic to this malicious URL through a link farm.

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=cristina+aguilera+not+myself+tonight
    • http://files.thepeacesyndicate.org/uploads/1/3/1/4/131454521/tekavewilawulizijoni.pdf
    • http://files.sdkuykendall.com/uploads/1/3/1/6/131607103/9128155.pdf
    • http://files.emrglab.org/uploads/1/3/1/4/131483955/19ae7e07.pdf
    • http://files.fireflytoysandgames.com/uploads/1/3/2/7/132740445/matedopevuve_karudusokunum_kosix_rimukup.pdf
    • https://cdn.shopify.com/s/files/1/0429/6356/6755/files/99590827092.pdf
    • https://cdn.shopify.com/s/files/1/0430/1497/9737/files/sopififedivomivuzajele.pdf
    • https://cdn.shopify.com/s/files/1/0436/0290/3202/files/26216858112.pdf
    • https://cdn.shopify.com/s/files/1/0433/8666/7158/files/62782006389.pdf
    • https://cdn.shopify.com/s/files/1/0434/2484/1890/files/lunujilovu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8082/7558/files/biwosiwigusotum.pdf
    • https://cdn.shopify.com/s/files/1/0438/7300/9819/files/vamozawavekudelow.pdf
    • https://cdn.shopify.com/s/files/1/0431/9005/9157/files/serovujuvarizanovep.pdf
    • https://cdn.shopify.com/s/files/1/0430/7261/8657/files/74334769895.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006254.bin
5b5bbbdbb99d559746df4ed1fe12bb10c1b75cbcee285a50c4c3499a031de57f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6254 5188 bytes
font_01_sfnt_off000073d8.bin
87833ddea7f3061882628c7430066757924dd51c57fda86912130d89ee07dc30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73D8 13116 bytes
font_02_sfnt_off00009e3b.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E3B 4324 bytes

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