Malicious PDF — malware analysis report

Static analysis result for SHA-256 c04340c395c1460a…

MALICIOUS

PDF

43.6 KB Created: 2020-08-30 11:46:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c1c42caa7b4be9f1d51089b537ef41c SHA-1: 66812cc736f427597f598022235934cdff2c750e SHA-256: c04340c395c1460a532580873002bd5343c0fd279d14c43644b6ca24342b6b90
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=evolve+network+adapter+download'. Additionally, it features a PDF link farm heuristic, indicating a mass of external links, with 'https://cdn.shopify.com/s/files/1/0433/0917/0856/files/revaremimoguxexuwogekufi.pdf' being the first identified. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further suggests a lure to trick the user into clicking the malicious link. The document body contains text related to 'Evolve network adapter download', reinforcing the lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=evolve+network+adapter+download
    • https://cdn.shopify.com/s/files/1/0433/0917/0856/files/revaremimoguxexuwogekufi.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/toni_morrison_beloved_summary.pdf
    • https://cdn.shopify.com/s/files/1/0437/0969/4107/files/wijavivanilaloribewak.pdf
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/glencoe_world_history_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0437/6756/2391/files/taxesamebomatiduputor.pdf
    • https://static.usrfiles.com/ugd/ae059d_63978bc1c3cc4af7bcff1068f36f3aa8.pdf
    • https://cdn.shopify.com/s/files/1/0438/6832/4005/files/prinsip_dasar_akuntansi_pajak.pdf
    • https://cdn.shopify.com/s/files/1/0462/3423/9125/files/ginetebatifigufitodi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/wirovabozewitanizojuzejop.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niwaragevutaxesidep.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/shala_marathi_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/duzofifigoxejemiwowunurow.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_off000063de.bin
5af72031f81f4efa4ff60f61c9b5133d89fbfaf191e4c3f81a521ac26b684126
pdf-font-stream PDF embedded font (sfnt) at offset 0x63DE 4948 bytes
font_01_sfnt_off000074da.bin
82407fdd143ce6c8bd6e83beeba690bb70d872b06e9624c01cdafeece8ebef78
pdf-font-stream PDF embedded font (sfnt) at offset 0x74DA 14416 bytes