Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb2cade630a61cd8…

MALICIOUS

PDF

51.5 KB Created: 2020-07-31 05:50:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a028c5f9ead80421f65ff9068006dd2a SHA-1: 64d945b49fcea4cac31459e9df0442507033cbc9 SHA-256: bb2cade630a61cd804330c063c421f65269769da1ef53a89d2358113e579f2ca
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a PDF link farm. This indicates a social engineering attempt to trick users into downloading potentially malicious content disguised as a driver. The document body, though heavily obfuscated, contains keywords related to a scanner driver 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.com/pify?keyword=canon+lide+110+pdf+scanner+driver+free+download
    • http://files.hb-artistry.com/uploads/1/3/1/3/131384771/vifapip.pdf
    • http://files.poetart.org/uploads/1/3/0/7/130739542/6182692.pdf
    • http://files.kansasgiftededucationdatabase.com/uploads/1/3/0/9/130969775/79d094ad0416.pdf
    • http://files.hb-artistry.com/uploads/1/3/1/3/13138
    • https://cdn.shopify.com/s/files/1/0427/7485/5846/files/92835310155.pdf
    • https://cdn.shopify.com/s/files/1/0439/3671/0824/files/11567280493.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9648/files/notexi.pdf
    • https://cdn.shopify.com/s/files/1/0428/3216/7068/files/kofuxikelowarunalawunazil.pdf
    • https://cdn.shopify.com/s/files/1/0431/8222/7617/files/74552651763.pdf
    • https://cdn.shopify.com/s/files/1/0431/7026/7300/files/44266412424.pdf
    • https://cdn.shopify.com/s/files/1/0435/9526/8264/files/dosinebasijunabubuzifigas.pdf
    • https://cdn.shopify.com/s/files/1/0436/0732/6882/files/74947976743.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.pdf
    • https://cdn.shopify.com/s/files/1/0430/0043/0746/files/pokeriti.pdf
    • https://cdn.shopify.com/s/files/1/0441/3010/7544/files/fubumijejikozomoniganujun.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/xakegovid.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/82292267151.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_off00008225.bin
1793292bcaa7dcb3a19bb46cc076d2c05590223c0c10f9d0e34415e8213f231e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8225 5224 bytes
font_01_sfnt_off00009407.bin
7880fb2a9b26c2792a4da24a8fd2fada939e0b5cb139208eae19d4c49347b7b4
pdf-font-stream PDF embedded font (sfnt) at offset 0x9407 14392 bytes