Malicious PDF — malware analysis report

Static analysis result for SHA-256 9968d86e0cdcf844…

MALICIOUS

PDF

43.0 KB Created: 2020-07-09 02:26:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 917164055a9e03a1b87617d3c10fb834 SHA-1: a3851e56fc4ef4a251197178ec3d8926ea01c54b SHA-256: 9968d86e0cdcf8449493d0a5c42769615c34dde23c1943e38111ebd3d78f4610
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links designed to create a link farm, likely for SEO manipulation or to distribute malware. The primary link redirects to a malicious infrastructure, and the document body itself contains multiple URLs pointing to other PDF files, suggesting a chain of redirects or a downloader. The heuristic firings confirm the presence of malicious redirector links and a link farm.

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.ru/wb?keyword=hubsan%20h502s%20manuale%20italiano%20pdf
    • http://files.noamiboutique.com/uploads/1/3/0/9/130969663/a585d01.pdf
    • http://files.unityofpalmyra.org/uploads/1/3/0/7/130775827/0d2098eedc2.pdf
    • http://files.projectufo.org/uploads/1/3/0/7/130739381/4877757.pdf
    • http://files.jordanrowerva.com/uploads/1/3/2/3/132303060/3285296.pdf
    • http://files.julianoshea.com/uploads/1/3/1/4/131453807/jibumojexoje.pdf
    • http://files.marygautreaux.com/uploads/1/3/2/8/132816185/gepewota_bodowififiz_basojapizima.pdf
    • http://files.bahamaschess.org/uploads/1/3/1/4/131452942/3548772.pdf
    • http://files.emilypassman.com/uploads/1/3/0/7/130775341/cf13c03bdc58d.pdf
    • http://files.bambooartscenter.com/uploads/1/3/1/8/131857071/pujeriwetid-napofemerumaw.pdf
    • http://files.albasmadetergents.com/uploads/1/3/1/3/131384771/7292020.pdf
    • http://files.quantumpoint.org/uploads/1/3/0/8/130874031/fexurugomaseba_livorejalolokib_kuluvewowa.pdf
    • http://files.finksdeli.org/uploads/1/3/2/7/132741222/5b0259.pdf
    • https://rezewer.files.wordpress.com/2020/07/18439677824.pdf
    • https://gizefonafo.files.wordpress.com/2020/07/53567216160.pdf
    • https://duxogij.files.wordpress.com/2020/06/58244731466.pdf
    • https://gakazorex.files.wordpress.com/2020/06/bebopovamolivav.pdf
    • https://novebagi.files.wordpress.com/2020/06/fowebewogojulanadenalisu.pdf
    • https://riwopodasi.files.wordpress.com/2020/06/45558527105.pdf
    • https://piwelil.files.wordpress.com/2020/07/60943054933.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/581871399.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ziwodukujaluladiludu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27392185694.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_off0000686b.bin
aaa48e907c36631a63be1fb829ca5a1344f4e8d7d28412e95aaa4c74b5cec529
pdf-font-stream PDF embedded font (sfnt) at offset 0x686B 5564 bytes
font_01_sfnt_off00007b21.bin
3a032ffbe1d1aba4abe54de00c3eceb11722bcfc58de3b47b449d0c5ae850f32
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B21 10460 bytes