Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0625f2ed6aa02fe…

MALICIOUS

PDF

39.7 KB Created: 2020-08-17 13:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d1d4d7c1f29e43a20662a1da4da4fbc5 SHA-1: cfb698ae0c47fd7312b3e249dbfab946801e9097 SHA-256: d0625f2ed6aa02fe45689acf53fb83944e4c536ba5ead4de69267ed276026da8
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to a lease agreement, which is a common tactic for phishing or malware delivery. It embeds numerous links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains the malicious URL and text suggesting it's a template, 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/pify?keyword=nc+residential+lease+agreement+template
    • http://files.kesselaarbv.com/uploads/1/3/1/1/131164032/4528237.pdf
    • http://files.truelovemissions.com/uploads/1/3/1/4/131438835/gareximovukonanep.pdf
    • http://files.yogashak.com/uploads/1/3/0/9/130969910/zevuru.pdf
    • https://cdn.shopify.com/s/files/1/0448/5762/2689/files/codigo_brasileiro_da_aeronautica.pdf
    • https://cdn.shopify.com/s/files/1/0431/9304/1053/files/pevutowibomuxetumokev.pdf
    • https://cdn.shopify.com/s/files/1/0440/4104/4118/files/cambridge_igcse_business_studies_teacher_s_resource.pdf
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/carpentry_lessons.pdf
    • https://cdn.shopify.com/s/files/1/0433/6753/0657/files/secondlife_grid_status.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5568/files/48954059557.pdf
    • https://cdn.shopify.com/s/files/1/0435/5696/2465/files/30395588492.pdf
    • https://cdn.shopify.com/s/files/1/0428/7361/8599/files/topavazebexupumikifevo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1737/1801/files/66064876923.pdf
    • https://cdn.shopify.com/s/files/1/0448/4779/2288/files/technical_analysis_tools.pdf
    • https://cdn.shopify.com/s/files/1/0431/9199/2481/files/galaxy_s8_battery_drain_android_system.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5558/files/50388703254.pdf
    • https://cdn.shopify.com/s/files/1/0441/0834/9592/files/87292280399.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_off00005eb0.bin
12c34e73bce26f28a605dd18935ab8b84c7ee139157110fa602f08fcb783482e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB0 5360 bytes
font_01_sfnt_off000070d3.bin
1d4d891bf7af6f82e86a07a1b7ecda74e0e3a490593f92a98195eaf0616eb54b
pdf-font-stream PDF embedded font (sfnt) at offset 0x70D3 9616 bytes