Malicious PDF — malware analysis report

Static analysis result for SHA-256 2940f0468d160ee7…

MALICIOUS

PDF

48.3 KB Created: 2020-08-04 13:59:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 947b072994cbe416023c9b59aa492761 SHA-1: 3c10d4d4cde1ac8372d41c35c1e8f7cd3a988507 SHA-256: 2940f0468d160ee7d549c903c62cf8f87545376e6443e38e5f7d73fc348b5743
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of external links, a technique often used to redirect users to malicious sites. One critical heuristic firing indicates a link to known malicious redirector infrastructure. The document body contains garbled text but also includes the URL 'https://ttraff.cc/pify?keyword=17th+amendment+in+constitution+of+pakistan+pdf', which is flagged as malicious. The file's purpose appears to be a link farm designed to distribute malware or phish users.

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.cc/pify?keyword=17th+amendment+in+constitution+of+pakistan+pdf
    • http://files.thewallssager.com/uploads/1/3/0/7/130775846/zofudaxeluzun-vogake.pdf
    • http://files.aliandreali.com/uploads/1/3/0/8/130874524/6029995.pdf
    • http://files.julius-rosenwald-legacy.com/uploads/1/3/1/6/131607163/e957513ae5419c8.pdf
    • http://files.addisontreeremovalmemphis.com/uploads/1/3/1/4/131412858/8783338.pdf
    • https://cdn.shopify.com/s/files/1/0430/3260/8921/files/duduni.pdf
    • https://cdn.shopify.com/s/files/1/0431/6990/6854/files/minetolabo.pdf
    • https://cdn.shopify.com/s/files/1/0428/2351/6323/files/29337229099.pdf
    • https://cdn.shopify.com/s/files/1/0438/6209/8085/files/st_louis_weather_15_day_forecast.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunumegosuvuvorewufo.pdf
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/76641159328.pdf
    • https://cdn.shopify.com/s/files/1/0433/6585/9493/files/61166821667.pdf
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/womekomukuker.pdf
    • https://cdn.shopify.com/s/files/1/0434/2608/7064/files/shapes_in_gimp.pdf
    • https://cdn.shopify.com/s/files/1/0431/1737/9745/files/guretaro.pdf
    • https://cdn.shopify.com/s/files/1/0431/5771/7152/files/83665602833.pdf
    • https://cdn.shopify.com/s/files/1/0434/2684/0737/files/89385760225.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/65360150881.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_off00007ec8.bin
808010e2e397cdabc5b11e7abb674029b8735466e8d3836bb9bafbd84d6a47d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC8 5368 bytes
font_01_sfnt_off000090f9.bin
952aa76935cc2f86da2edb2227b7fbb9a23724d1ae5c7209d3b28beed1a57d89
pdf-font-stream PDF embedded font (sfnt) at offset 0x90F9 10132 bytes