Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c537359fb75eb02…

MALICIOUS

PDF

50.5 KB Created: 2020-08-07 01:40:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8e6d53ca00322577607b8baa8f6d295 SHA-1: 633e7191047f66489da0f4a643658d97cc3755b4 SHA-256: 1c537359fb75eb022ba819baf74f3320fd14076a64aea5d3788f5f2acb35c91c
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is disguised as a game walkthrough. This indicates a phishing or social engineering attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of numerous embedded URLs, many pointing to Shopify, suggests a link farm or SEO poisoning technique to distribute the malicious content.

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.ru/pify?keyword=baldur+s+gate+2+enhanced+edition+walkthrough+pdf
    • http://files.pragmaticpassion.com/uploads/1/3/1/6/131636828/nenaleloraf.pdf
    • http://files.theidealtrip.com/uploads/1/3/1/1/131163780/4b94c9e.pdf
    • http://rizamegid.pyramidcafeshop.com/uploads/1/3/0/7/130738779/tejofokepog.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/85224788939.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xutowoterefabobenovise.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/zikaforilenonerepemex.pdf
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/79275241503.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/88978828558.pdf
    • https://cdn.shopify.com/s/files/1/0434/5557/8273/files/repegolegivi.pdf
    • https://cdn.shopify.com/s/files/1/0438/3830/8512/files/actuarial_science_exams.pdf
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/nomurolupidutiseb.pdf
    • https://cdn.shopify.com/s/files/1/0434/4584/6168/files/20623134613.pdf
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/viweragupesuv.pdf
    • https://cdn.shopify.com/s/files/1/0439/6836/4702/files/96727872057.pdf
    • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/59128058579.pdf
    • https://cdn.shopify.com/s/files/1/0431/1577/4108/files/pajimudogudakosiz.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_off0000853b.bin
2fffe1d9d6d19f3ce99328dcc9cd7096fd3d8fec1dd3677cf530bbd5ca5bb798		 pdf-font-stream PDF embedded font (sfnt) at offset 0x853B 5752 bytes
font_01_sfnt_off000098ea.bin
7d3c1edc8fab5ce044ecfc2b8897f1f564bfee3ea9cd6cfc0b9e1545b6d8ed72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98EA 10464 bytes

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