Malicious PDF — malware analysis report

Static analysis result for SHA-256 95a740b08b0a43fd…

MALICIOUS

PDF

41.2 KB Created: 2020-08-02 08:00:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fed0c013f23588a7d90d2b46bffb19f SHA-1: e8abd055fefcdddb4076394aa624063d5613d060 SHA-256: 95a740b08b0a43fd7d014fd3c6506dbeab42367bddd8600314c61edab7f622b9
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. This URL is presented in a way that suggests it's related to a 'random string generator', likely as a lure. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm techniques used to distribute malicious content. No scripts were extracted from this sample.

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=random+string+generator+c%252B%252B
    • http://files.acceptbc.ca/uploads/1/3/1/0/131070450/rimaruwesijapu_jupowo_jejamonudo.pdf
    • http://files.carambola.ie/uploads/1/3/0/7/130739906/dutokisot.pdf
    • http://files.upcen.org/uploads/1/3/0/8/130874678/19a813c07c.pdf
    • http://files.musicachievers.net/uploads/1/3/1/0/131070895/jopogiteribur.pdf
    • https://cdn.shopify.com/s/files/1/0431/6443/4592/files/43716019056.pdf
    • https://cdn.shopify.com/s/files/1/0428/1240/7967/files/woxopojugifabudo.pdf
    • https://cdn.shopify.com/s/files/1/0433/2670/1723/files/gosolukakipufuwazalulunu.pdf
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/wuxaruxagokakuwerip.pdf
    • https://cdn.shopify.com/s/files/1/0428/5726/7359/files/49772272954.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/25305564297.pdf
    • https://cdn.shopify.com/s/files/1/0431/2629/2629/files/tologexivovepivo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9603/9839/files/46486747328.pdf
    • https://cdn.shopify.com/s/files/1/0438/4423/9510/files/96498584437.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/vuwegududaworanujen.pdf
    • https://cdn.shopify.com/s/files/1/0436/0149/4178/files/10488219752.pdf
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/jesobipuxapurowomav.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_off00005f88.bin
b964717d6a5ada924a470cfa6cc20b37f22e811151d527d448d6aef6cad71af5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F88 5232 bytes
font_01_sfnt_off00007144.bin
ff5e645a451718cc75eddfe9e29cd1759c228c43f9c4c6ceb7fc45c19a1a77b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7144 11408 bytes

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