Malicious PDF — malware analysis report

Static analysis result for SHA-256 59cb4a123313aee4…

MALICIOUS

PDF

38.6 KB Created: 2020-08-11 01:27:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a2456fd1aa9118cbeac610945f2de05 SHA-1: 05093cc355c5fd63030d7dbcfadb17533e2fe813 SHA-256: 59cb4a123313aee4fdfe9cdcd28acc148cf0a7ddecdc042c87cd35233a34b8ed
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=ugly+love+carte+pdf', is identified as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking malicious links, likely leading to further compromise.

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.cc/pify?keyword=ugly+love+carte+pdf
    • http://files.middlecedarwma.com/uploads/1/3/1/3/131379615/fetok.pdf
    • http://files.roadhousegrillandbar.com/uploads/1/3/0/8/130814630/4076373.pdf
    • http://files.thesharkeyvoicestudio.com/uploads/1/3/2/7/132740951/xijave.pdf
    • http://files.rachelmariephotography.net/uploads/1/3/1/3/131383837/zijal.pdf
    • https://cdn.shopify.com/s/files/1/0432/5454/6590/files/30990280281.pdf
    • https://cdn.shopify.com/s/files/1/0436/2865/8848/files/nozewogubazezuravaxixeta.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepudanunakadop.pdf
    • https://cdn.shopify.com/s/files/1/0438/3378/6530/files/artificer_ua.pdf
    • https://cdn.shopify.com/s/files/1/0433/9374/5046/files/30550617366.pdf
    • https://cdn.shopify.com/s/files/1/0431/8311/2341/files/ximikiwafuresiru.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xomekanob.pdf
    • https://cdn.shopify.com/s/files/1/0429/7529/7689/files/sinimuxup.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/towajudewamori.pdf
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/latitude_and_longitude_of_washington_dc.pdf
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/panasonic_kx-_tga931t.pdf
    • https://cdn.shopify.com/s/files/1/0428/8181/0595/files/mivasuti.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_off00005a3b.bin
23e16bdab5d8fc01f0d5e8d919eb1cfb514345792d815606918e65fa5aa04302		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3B 5300 bytes
font_01_sfnt_off00006c5c.bin
6fbe2b529394f840d3a1bd666bbcc6b62571d53870fb91abe7b3927faf36835d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C5C 9764 bytes

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