Malicious PDF — malware analysis report

Static analysis result for SHA-256 49099a081197c17c…

MALICIOUS

PDF

105.8 KB Created: 2020-09-03 00:00:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a13f76ccaad5d96fe620892d2f6327bd SHA-1: d864cb490564b38ad6feb791d630cb300871026b SHA-256: 49099a081197c17cee9ade225ac1a7aea704791019cd2e6599fe264b019d1c28
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=api+testing+manual+test+cases'. The document body, though heavily obfuscated, appears to contain this URL and text related to 'api testing manual test cases', suggesting a lure. The file also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, likely to improve search engine ranking for malicious content.

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.cc/wix?keyword=api+testing+manual+test+cases
    • https://scrolltest.com/api/day24����
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/66889252377.pdf
    • https://cdn.shopify.com/s/files/1/0427/6381/3020/files/bawonirujegijikelixas.pdf
    • https://cdn.shopify.com/s/files/1/0431/9536/7585/files/xaridifepajijisofexafi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2661/2378/files/64972157422.pdf
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/11837430491.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2479/files/wagitirodekotusa.pdf
    • https://cdn.shopify.com/s/files/1/0434/7805/7122/files/76308057754.pdf
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/sewowogo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4550/2626/files/sims_4_beard_cc.pdf
    • https://cdn.shopify.com/s/files/1/0432/0277/3156/files/42814509609.pdf
    • https://cdn.shopify.com/s/files/1/0431/5221/2130/files/thalapakattu_mutton_biryani_recipe_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0439/2553/6936/files/agni_kai_soundtrack.pdf
    • https://static.usrfiles.com/ugd/e32576_de535e864f3548aa8fdf1add6dc5a050.pdf
    • https://static.usrfiles.com/ugd/8bc2a6_1ef2020d4d6f4376a3e82ffe865a9208.pdf
    • https://static.usrfiles.com/ugd/704566_e7bb5b1092fd4730aed64103f2beb8e6.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001339c.bin
530cad6ad19a53f20f7a21433c96a117fc98f147189afb96d06653c38fe84d21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1339C 5144 bytes
font_01_sfnt_off00014508.bin
a6a8686b8fb15c9717d15c6992f5cb6599fab98c9eb18a738509255b94a7d84e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14508 2252 bytes
font_02_sfnt_off00014f48.bin
fddd5b67793568984e0154b7afb10c54a6394af25e83b2aecf762ea5ff55055f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14F48 16388 bytes
font_03_sfnt_off0001824b.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1824B 16204 bytes

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