Malicious PDF — malware analysis report

Static analysis result for SHA-256 22907b060facce96…

MALICIOUS

PDF

52.6 KB Created: 2020-07-25 13:03:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 792f7756bb90c8fa383dd97457fc895f SHA-1: ce332d84b339f3f43731d5f794c901466ab6a441 SHA-256: 22907b060facce967f7ecca519e72816b42f7db5a2bcfbbd86e50825eae1766d
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a 'PDF SEO Link Farm'. One of these links, 'https://ttraff.com/wb?keyword=vlookup%20sample%20worksheet', is flagged as a malicious redirector. The document body is heavily obfuscated, but the presence of these links strongly suggests an attempt to direct users to malicious or unwanted content, potentially for SEO poisoning or further exploitation.

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=vlookup%20sample%20worksheet
    • http://files.harzaalumni.com/uploads/1/3/2/6/132696117/7169686.pdf
    • http://files.warbabycosmetics.com/uploads/1/3/1/4/131438776/zigaxebin_jowujimo_lunawepidu_wimowuniz.pdf
    • http://files.drjesspshatkin.com/uploads/1/3/1/4/131453136/zikide_tavetizasidep.pdf
    • http://files.matthewdrnovseklaw.com/uploads/1/3/0/8/130874115/5b11eebef9bde.pdf
    • http://files.jimihuard.net/uploads/1/3/1/6/131636584/2181651.pdf
    • https://cdn.shopify.com/s/files/1/0435/6174/6595/files/degabumikisedixigawusome.pdf
    • https://cdn.shopify.com/s/files/1/0433/4652/6361/files/ronubebezekilejivabaxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/6065/8333/files/59621935061.pdf
    • https://cdn.shopify.com/s/files/1/0431/9048/5150/files/buvanezolaxexubilojofulo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/wokedajakufubunosuzi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/zaluxiremetozew.pdf
    • https://cdn.shopify.com/s/files/1/0430/6662/2105/files/gejagigifumozaf.pdf
    • https://cdn.shopify.com/s/files/1/0430/8136/7712/files/joxevukusiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/1281/6039/files/65906346745.pdf
    • https://cdn.shopify.com/s/files/1/0432/5048/3368/files/nulukelaneluwexij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nazowexoratusitufunu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/nupogesoxuvasu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008bc6.bin
f50635f7ee7fb311750dc9e4256de6075f06272220de76cb1c6cff67a4daaf60
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC6 4908 bytes
font_01_sfnt_off00009c91.bin
5f8c0a89fa680406ba3da256949ad51a2fa4e2a8b89c2ff49a47d6d67694dba8
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C91 12428 bytes