Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6ef3cdad7b5fd52…

MALICIOUS

PDF

76.2 KB Created: 2020-08-29 20:31:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 006cc0976cf662c258d614fd39d7eb85 SHA-1: 72884421c5aed8d387ff9c0b8f5813f48ada35d3 SHA-256: d6ef3cdad7b5fd52170b03034816bb59decf280d6bd8d36c2bc028e8f01ba711
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the presence of the URL 'https://ttraff.club/wix?keyword=diya+aur+baati+hum+punjabijunktion' strongly indicate a malicious intent to redirect the user. The 'PDF_SEO_LINK_FARM' heuristic suggests a tactic to manipulate search engine results or distribute malicious links widely. The ML classifier also flagged this PDF with high confidence.

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.club/wix?keyword=diya+aur+baati+hum+punjabijunktion
    • https://cdn.shopify.com/s/files/1/0431/1390/6333/files/kakipiterafewe.pdf
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/sanomutumu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1796/files/xamaxegapijes.pdf
    • https://cdn.shopify.com/s/files/1/0432/3144/5149/files/heavy_silk_bandage_vanilla.pdf
    • https://static.usrfiles.com/ugd/b8c837_40427c1de91b472eb12c545b3c415cf4.pdf
    • https://static.usrfiles.com/ugd/b8c837_f138cd7fbb4b470eb7a06957bac291b7.pdf
    • https://static.usrfiles.com/ugd/80c1db_2d86daa4922446f986e66ab543a9ca09.pdf
    • https://static.usrfiles.com/ugd/b8c837_5ab1b82ed94e4ee587a8b5fe8d80a4df.pdf
    • https://static.usrfiles.com/ugd/0c268c_2014fc9e38a24ce9b1467d29ca22793d.pdf
    • https://static.usrfiles.com/ugd/33a16d_f3f76986dfd04a22abdd6ffa95f92de2.pdf
    • https://static.usrfiles.com/ugd/704566_ac585c3c39c145858fc445504f13ffb3.pdf
    • https://static.usrfiles.com/ugd/b8c837_7fa2535818694b81aceba3a3a302fe1d.pdf
    • https://static.usrfiles.com/ugd/26481d_6c25c7389cca4e52b2d25df40c16afcf.pdf
    • https://static.usrfiles.com/ugd/565485_b6ef417bd0054eb3979002d206bcad16.pdf
    • https://static.usrfiles.com/ugd/bd5c68_f972664ad19542cd8d685e37b15597eb.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf2b371bcc72483caeeb6e56aeef2e0a.pdf
    • https://static.usrfiles.com/ugd/63d3ad_0d23af583ae842df863fbad0bc0d0564.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_off0000d133.bin
15ac32ef0a1ae76044527cd69d72d4f9581257cfafedfff60bfaeb6be65f388a
pdf-font-stream PDF embedded font (sfnt) at offset 0xD133 5228 bytes
font_01_sfnt_off0000e2e5.bin
6f48e0cdf76b082f05829016868793a1ef0fc8e4d7e4115cf5c39fb7ab68e263
pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E5 12508 bytes
font_02_sfnt_off00010a8e.bin
a697a56d8b7e52d59ee87ac5d46f1d07a69474d9ad4815ee162af1e669444ed2
pdf-font-stream PDF embedded font (sfnt) at offset 0x10A8E 17160 bytes