Malicious PDF — malware analysis report

Static analysis result for SHA-256 67755cd4ecc270d3…

MALICIOUS

PDF

32.6 KB Created: 2020-09-03 01:27:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b68e620e7c267c3f802dfa121b5fee04 SHA-1: 240c27ab99a0c4a2246340b6bc49c5e14a770ba5 SHA-256: 67755cd4ecc270d377bdc72f1f08955d34dc149a8f31e8bb9d7944a7c14cd746
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL is 'https://ttraff.me/wix?keyword=panchatantra+kannada+film+song', which is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other links to PDF files, suggesting a link farm or SEO poisoning tactic to drive traffic to malicious infrastructure. No scripts were extracted, but the presence of numerous malicious links indicates a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.me/wix?keyword=panchatantra+kannada+film+song
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/a382ee_9b3ff5bcd4384a8cb8f95b1620f3508a.pdf
    • https://static.usrfiles.com/ugd/6f9b04_2468768c7a3f4b6ea65163852b41f1e5.pdf
    • https://static.usrfiles.com/ugd/191a6d_87ef3ce10de54c6abc95a0cb39c8793e.pdf
    • https://static.usrfiles.com/ugd/0bcf16_58f8e413e77d44beb6103dc4ee3a28b4.pdf
    • https://static.usrfiles.com/ugd/b8c837_d3eeb3ced771494d89cdb5f217548af8.pdf
    • https://static.usrfiles.com/ugd/296484_dbf10df307c64f96948275e7f11349dc.pdf
    • https://static.usrfiles.com/ugd/906e9f_d2a92267fbf24a5caa1a901bc4b036a8.pdf
    • https://static.usrfiles.com/ugd/9f69bd_8a6f136f78b24601b398e57a58e7c536.pdf
    • https://static.usrfiles.com/ugd/aff7ca_5433198f572d4230b0da05a0fa9e34a1.pdf
    • https://static.usrfiles.com/ugd/b8c837_f3b86c16dfe740c0a94601885d5d65a7.pdf
    • https://static.usrfiles.com/ugd/f84671_d979b97d5b0b42daa57bc96c19949285.pdf
    • https://static.usrfiles.com/ugd/de60da_7c785034c26645948d1f99a764e4f03d.pdf
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/savejawekajifu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4875/4600/files/alexander_rybak_fairtayle.pdf
    • https://cdn.shopify.com/s/files/1/0429/9417/2058/files/john_deere_1070.pdf
    • https://cdn.shopify.com/s/files/1/0433/7208/5397/files/99500635176.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000438e.bin
a11d0168af24da2f4470627860e56c2cbe9570f38247407ffa672313e14eec91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x438E 5500 bytes
font_01_sfnt_off00005619.bin
fccc76e0151cf2095797dd179371d91fe11c5a6206e90468d126cc861e7a2e48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5619 9304 bytes

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