Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc6f141b33a018d9…

MALICIOUS

PDF

114.8 KB Created: 2020-08-14 12:13:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94c6477ff1dad6bfca8ef649aa1d92c4 SHA-1: 7669171370199e011d6a0d617797beb63d7cd703 SHA-256: dc6f141b33a018d91253c68e9a00a9c0c0d73b7113d765fa0ad9ea2e5b3221f9
128 Risk Score

Malware Insights

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

The PDF file contains a mass external PDF link farm, with many links pointing to potentially malicious content. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/wb?keyword=urvashi%20ramdhari%20singh%20dinkar%20pdf%20free%20download'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to trick users into clicking this link, which likely leads to malware download or a phishing page. No scripts were extracted from this sample.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wb?keyword=urvashi%20ramdhari%20singh%20dinkar%20pdf%20free%20download
    • http://files.paavoladesign.com/uploads/1/3/1/6/131606201/db1fc2e94f54.pdf
    • http://xobanen.kansasalphadeltakappa.com/uploads/1/3/2/6/132683188/3362112.pdf
    • http://wojalud.lipstikalley.com/uploads/1/3/1/4/131483492/panebi.pdf
    • http://files.crystalcovenrmp.com/uploads/1/3/1/4/131453998/3232106.pdf
    • http://files.classicgatemakers.com/uploads/1/3/1/4/131406068/genipeko.pdf
    • https://cdn.shopify.com/s/files/1/0435/3179/6632/files/bakasura_kannada_movie_full.pdf
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/68223097820.pdf
    • https://cdn.shopify.com/s/files/1/0433/9548/1750/files/76433859569.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/wogafexusewadesewaf.pdf
    • https://cdn.shopify.com/s/files/1/0434/6963/5749/files/45102962848.pdf
    • https://cdn.shopify.com/s/files/1/0432/2649/7182/files/naniwunuvolarifimidozasa.pdf
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/43297986090.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/81389005311.pdf
    • https://cdn.shopify.com/s/files/1/0429/6730/2295/files/vugefekotefuze.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/nemoxagiwutamixopetitom.pdf
    • https://cdn.shopify.com/s/files/1/0431/2953/6668/files/43578186153.pdf
    • https://cdn.shopify.com/s/files/1/0439/2304/6568/files/bromatologia_e_tecnologia_de_alimentos.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_off000151b5.bin
2606faecb924da56c19212082da124dc7674b2aabac6f2dcde32d8dc35bc6c15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x151B5 5660 bytes
font_01_sfnt_off000164e6.bin
d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280		 pdf-font-stream PDF embedded font (sfnt) at offset 0x164E6 3720 bytes
font_02_sfnt_off00017049.bin
31fd45d24611fc6f291a52d682cc685d5e4255129ce5c35a02c279b1cd24d9ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17049 14004 bytes
font_03_sfnt_off00019c68.bin
490f78f772dc0e523907ac494921400d5e62e6f760d0baae6d7286cd70c85a0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19C68 10040 bytes

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