Malicious PDF — malware analysis report

Static analysis result for SHA-256 d547583c484d0739…

MALICIOUS

PDF

41.0 KB Created: 2020-08-27 22:12:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e50db7682b56762ee57df266b49df15 SHA-1: 60662ab38da49e976d70aa6c679f8ff87df52fd1 SHA-256: d547583c484d0739a0b718bcbd082bfe21b3a64e51b018a5226dc45360304f55
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, with one identified as a known malicious redirector. The document body text is obfuscated and appears to be junk data, but the presence of numerous links, including one pointing to `ttraff.com`, strongly suggests a phishing or malware distribution attempt. The heuristic firings confirm the malicious nature of the embedded links and the link farm structure.

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.com/pify?keyword=a+new+pair+of+glasses+chuck+chamberlain
    • http://files.jamescookcomedian.com/uploads/1/3/0/9/130968920/7809545.pdf
    • http://diwewedew.shrevewoodpta.org/uploads/1/3/1/6/131606349/495148.pdf
    • http://files.glenridgetkd.com/uploads/1/3/1/4/131483282/2125531.pdf
    • http://dafofezak.altcoin-tax.com/uploads/1/3/1/1/131164250/vuvisakuboweduden.pdf
    • https://cdn.shopify.com/s/files/1/0431/7931/1268/files/86557787294.pdf
    • https://cdn.shopify.com/s/files/1/0434/8831/3506/files/83028186857.pdf
    • https://cdn.shopify.com/s/files/1/0430/2402/3715/files/medaxomexifakejo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sazofafusogowo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/74711609752.pdf
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/11350707937.pdf
    • https://cdn.shopify.com/s/files/1/0432/7342/0965/files/2812600581.pdf
    • https://cdn.shopify.com/s/files/1/0432/3550/8387/files/dinuwufefevifot.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_off00005399.bin
efc74c0cb265c55143a158f5cde5f6ebcc7f669201cfaafe81f9671c9e87053e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5399 5516 bytes
font_01_sfnt_off00006635.bin
5c4922e4cc861c6dedf331622c17dd91fcbc4326b1e9983e3fd394a3fcad3c6d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6635 10176 bytes
font_02_sfnt_off00008916.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x8916 4324 bytes