Malicious PDF — malware analysis report

Static analysis result for SHA-256 b989cf1ad478a5fa…

MALICIOUS

PDF

42.8 KB Created: 2020-08-06 07:14:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61a9cac6c200eea54766e38c62e36762 SHA-1: 3cf609ea0bf3e0e59ea0867aa94e709ae1784231 SHA-256: b989cf1ad478a5fac58c60941b03a1adfa4beb9f3a194348017feccc77c6f864
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to malicious infrastructure, specifically a URL associated with a redirector. The document body, though heavily obfuscated, contains text related to 'csp back pain exercises pdf' and the malicious URL itself, suggesting a lure to trick users into clicking. The presence of numerous external PDF links further indicates a link farm or SEO poisoning tactic to distribute the malicious content.

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=csp+back+pain+exercises+pdf
    • http://files.tear-a-page.com/uploads/1/3/0/7/130738714/simeminom_rujozugexezaw.pdf
    • http://todegozo.punabaptistchurch.org/uploads/1/3/2/3/132303189/debisadow_lelufut_velapisi.pdf
    • http://files.lungtaworld.com/uploads/1/3/0/9/130969681/mafowuboni.pdf
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/zonedidekomud.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/56020961200.pdf
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/pinulagogefuzodobefiponel.pdf
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/40749861779.pdf
    • https://cdn.shopify.com/s/files/1/0437/5291/5098/files/jilodinofirusebak.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niwaragevutaxesidep.pdf
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/17111905214.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/vufosizemolo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20745245188.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/psychology_11th_edition_carole_wade.pdf
    • https://cdn.shopify.com/s/files/1/0437/7424/7069/files/kumemuwunasobezoke.pdf
    • https://cdn.shopify.com/s/files/1/0427/6404/2396/files/kogezesafejinikufap.pdf
    • https://cdn.shopify.com/s/files/1/0435/6076/3555/files/zisaki.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_off000068d2.bin
1bdca25f3fa0c45707d83488c494d6229541badb53aef8f1fcc83d7eca1548e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68D2 5292 bytes
font_01_sfnt_off00007ae0.bin
480ac333b03931fd027a184123ba07d8ffb7733fad0c774f983aea13e0162374		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE0 10288 bytes

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