Malicious PDF — malware analysis report

Static analysis result for SHA-256 476e8a02b3fcf253…

MALICIOUS

PDF

109.2 KB Created: 2020-08-26 12:26:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fd68a83c728be71d05fdf908d2f6dd9 SHA-1: a14900770be3caba5da8885c81828468776dc8af SHA-256: 476e8a02b3fcf2538f91da62725f8498b7e33586ffae0d6db1663e713cb07876
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a significant number of external links, many pointing to Shopify domains, suggesting a link farm or SEO spamming tactic. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=how+to+use+rstudio+statistics'. The document body, though heavily obfuscated, contains this same URL, indicating it is the primary lure. The file's purpose appears to be directing users to malicious content through this redirector.

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.ru/pify?keyword=how+to+use+rstudio+statistics
    • http://talar.monicanicolaides.com/uploads/1/3/0/7/130738714/tisikereremupi.pdf
    • http://files.shooplr.com/uploads/1/3/0/8/130874278/vizowepelid-jedaki-kazibijamekag.pdf
    • http://files.escalantelife.com/uploads/1/3/1/4/131410158/9889461.pdf
    • http://files.mandala-ou.com/uploads/1/3/1/3/131380915/eddff.pdf
    • https://cdn.shopify.com/s/files/1/0438/7130/5896/files/bca_4th_sem_math_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/5548/0981/files/meniwafu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7330/files/62780299771.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/71095814070.pdf
    • https://cdn.shopify.com/s/files/1/0428/5094/3142/files/fupopirameburaz.pdf
    • https://cdn.shopify.com/s/files/1/0437/4174/1205/files/mexulibajodefogep.pdf
    • https://cdn.shopify.com/s/files/1/0431/0401/0389/files/wefuniden.pdf
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/animation_in_android_library.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasamonuje.pdf
    • https://cdn.shopify.com/s/files/1/0429/5183/5801/files/98000835374.pdf
    • https://cdn.shopify.com/s/files/1/0436/2679/1072/files/19364315756.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_off00015823.bin
58c2ae2bc720a2fe9bd797ecd45431cbae9fccb99143b653903fdafb8c892126		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15823 4732 bytes
font_01_sfnt_off00016856.bin
ad08028f6c74b5b9b2867f21abae3e6f33dfafeccffe1686f77e5e313189a63b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16856 15604 bytes
font_02_sfnt_off00019916.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19916 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.