Malicious PDF — malware analysis report

Static analysis result for SHA-256 4665b210cce13be4…

MALICIOUS

PDF

44.6 KB Created: 2020-07-19 06:00:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73e9fdf865e1be399ab98d9e89fc63e7 SHA-1: 3b8e6e6aebdcaec9bdb7ab82d8003112d04db450 SHA-256: 4665b210cce13be4630b9b894278e973a3f7f4bc6ad32a6ae3f122e710349fb5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning attempt. One critical heuristic firing indicates a link to known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create malicious PDFs. No scripts were extracted from this sample.

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=iceberg%20concept%20of%20culture%20pdf
    • http://files.warehousedistillery.com/uploads/1/3/1/4/131438180/takosojivapote.pdf
    • http://files.wrightys-warships.com/uploads/1/3/0/9/130969522/fobolagolizi-xofowoxutuw.pdf
    • http://files.tyronegloverfoundation.net/uploads/1/3/1/4/131407530/a741f.pdf
    • http://files.scdvinfo.org/uploads/1/3/0/7/130739028/fd3c9.pdf
    • http://files.davidgillaspie.com/uploads/1/3/0/8/130813461/biwimadikekakiw_gemalabodezug_dajemezezut.pdf
    • http://files.scdv
    • https://supuxobamib.files.wordpress.com/2020/07/ginibufeserawek.pdf
    • https://gigatamed.files.wordpress.com/2020/06/wexub.pdf
    • https://zomazezifa.files.wordpress.com/2020/06/bomubujikamuxotajubuv.pdf
    • https://mazuzunukaz.files.wordpress.com/2020/07/sizulolato.pdf
    • https://bisapabuwu.files.wordpress.com/2020/07/84178850164.pdf
    • https://fubizukolu.files.wordpress.com/2020/06/zadiburap.pdf
    • https://fetuwuzofu.files.wordpress.com/2020/06/rufukegiz.pdf
    • https://belerodis.files.wordpress.com/2020/07/11530220754.pdf
    • https://zapokowivuz.files.wordpress.com/2020/06/jewemokijal.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/wuxagej.pdf
    • https://cdn.shopify.com/s/files/1/0437/2417/7576/files/munemedamesibozi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7927/0549/files/40451312227.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lutekalejore.pdf
    • https://cdn.shopify.com/s/files/1/0432/1506/1153/files/bivuzami.pdf
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/4525762842.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/towigafofoxevezomigivipix.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/kidobew.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_off000071c7.bin
238add0c5af7dfc405bc9a88b990c4d68e784bf16eaa07130131ff3cedbc00be
pdf-font-stream PDF embedded font (sfnt) at offset 0x71C7 4848 bytes
font_01_sfnt_off0000823e.bin
79d26482343503b0aa3d9f76dde1482de31587129698b4b2489bdbfad288efe4
pdf-font-stream PDF embedded font (sfnt) at offset 0x823E 10160 bytes