Malicious PDF — malware analysis report

Static analysis result for SHA-256 d138d7bcee2bcd9e…

MALICIOUS

PDF

37.7 KB Created: 2020-08-30 17:54:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0645bb4cb418ad108d66bcde44b0f2e3 SHA-1: ac867e84d36482739f7d9b454871675a6ac2d672 SHA-256: d138d7bcee2bcd9ee472eb18d94cac1bf9aaa246854f98901dd488e75fecf078
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=canon+lbp+6230+driver+download'. This URL is presented as a download link for printer drivers, likely a lure to trick users into downloading malware. The document also contains a large number of embedded links to Shopify, identified as a link farm, further supporting a malicious intent to distribute harmful content.

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=canon+lbp+6230+driver+download
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/kebiremazudanoporedi.pdf
    • https://cdn.shopify.com/s/files/1/0433/2496/5019/files/jeravimimipiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/5304/0295/files/88806201307.pdf
    • https://cdn.shopify.com/s/files/1/0429/2562/1404/files/buwuvisuw.pdf
    • https://cdn.shopify.com/s/files/1/0429/5891/3689/files/44836074450.pdf
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/accuweather_smithfield_pa.pdf
    • https://cdn.shopify.com/s/files/1/0440/8921/3093/files/2298336897.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/bizexe.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2454/files/vikavibute.pdf
    • https://cdn.shopify.com/s/files/1/0432/8787/1646/files/81749591950.pdf
    • https://static.usrfiles.com/ugd/d54300_d1c398fa9f0f460499e3e33bc8c52b54.pdf
    • https://static.usrfiles.com/ugd/69695d_db8617c4337844b99ac31bd58f44ffe1.pdf
    • https://static.usrfiles.com/ugd/b8c837_54b9d9deb186495c844334894d34d319.pdf
    • https://static.usrfiles.com/ugd/9219f8_90598e7681db4a8a9abc3ced227afed7.pdf
    • https://static.usrfiles.com/ugd/b8c837_71579a2e973a4942a47c4e245a47f217.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_off00004f7d.bin
b01536f0e7fabecf5dffbd75d698caf12b01a24614d7e18a51aae0f3f1d306ee
pdf-font-stream PDF embedded font (sfnt) at offset 0x4F7D 5564 bytes
font_01_sfnt_off00006289.bin
77993033a2ea1dc7d119ce03570deb292aed426ca3de8753b09667c854b5df52
pdf-font-stream PDF embedded font (sfnt) at offset 0x6289 11424 bytes