Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2025b1684275769…

MALICIOUS

PDF

50.0 KB Created: 2020-07-07 12:13:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5883bdb459e13ede79c4175fdc7323ad SHA-1: 3e24e4ffe49615f09843961dc2ff5d60cf0171ff SHA-256: d2025b1684275769eb5539fea9a618aab21e7bf2a39af11ffa84665b1faddf9d
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to domains associated with SEO link farms. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure at 'ttraff.com'. The document body, though partially obfuscated, contains the same lure text and URLs, suggesting the primary purpose is to drive traffic to these malicious sites, likely for further exploitation or phishing.

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.com/wb?keyword=word%20formation%20list%20advanced%20pdf#word+formation+list+advanced+pdf
    • http://files.nlg-pros.com/uploads/1/3/0/9/130969910/katixiratowapo.pdf
    • http://files.newellbooks.com/uploads/1/3/0/8/130813797/vapujulo_rajeker_vewidufe.pdf
    • http://files.krabidream.com/uploads/1/3/2/6/132681566/3285554.pdf
    • http://files.sandaharrboerboels.com/uploads/1/3/2/6/132681566/6896535.pdf
    • http://files.morjimcocopalms.com/uploads/1/3/1/3/131384789/2a0aea98a146c0c.pdf
    • http://files.jimpendergrass.com/uploads/1/3/2/8/132815961/xabixejeje-nenowapiwage-jisematonalon.pdf
    • http://files.thecovenantschristandyou.com/uploads/1/3/1/3/131379434/94345039.pdf
    • http://files.bampilates.com/uploads/1/3/1/4/131438741/1940dcd9a51.pdf
    • http://files.centrocha.org/uploads/1/3/0/8/130873870/7918256.pdf
    • https://nosubokelu.files.wordpress.com/2020/07/bewiroxago.pdf
    • https://salusef.files.wordpress.com/2020/06/70171398516.pdf
    • https://jowezeda.files.wordpress.com/2020/07/35630767808.pdf
    • https://moxijixo678822952.files.wordpress.com/2020/06/kavebominofalenezidik.pdf
    • https://fufejuf.files.wordpress.com/2020/06/46819096979.pdf
    • https://tuzidel.files.wordpress.com/2020/07/vimamunojefemazivefabimir.pdf
    • https://woroxunogu.files.wordpress.com/2020/06/63418872103.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_off00006839.bin
27174d04048e6f113807911646708167ed5b7f385029066c65eee0ba978e6088
pdf-font-stream PDF embedded font (sfnt) at offset 0x6839 5164 bytes
font_01_sfnt_off000079ba.bin
dba5e3e1f3d4900602cfb39bc5a0ebdbf0628f538be0e0b5cc3de63d531ee438
pdf-font-stream PDF embedded font (sfnt) at offset 0x79BA 13900 bytes
font_02_sfnt_off0000a643.bin
39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67
pdf-font-stream PDF embedded font (sfnt) at offset 0xA643 16092 bytes