Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b09a73a5c73f0cc…

MALICIOUS

PDF

45.2 KB Created: 2020-08-13 21:35:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0fe2b78126d590cbdd2cf0ca33cec07 SHA-1: e324a844e9125a4e0691bb3e4e85a4b22255ea47 SHA-256: 3b09a73a5c73f0cc9cd4d5409e14e8c778e3ee977e5c46389dce3d23c77e0c64
148 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, contains text related to "British gas smart meter manual top up" and appears to be a lure for invoice or payment-related scams. The presence of a link farm and a malicious redirector suggests an attempt to lead the user to a malicious site. No scripts were extracted from this sample.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.ru/pify?keyword=british+gas+smart+meter+manual+top+up
    • http://files.orendagametables.ca/uploads/1/3/1/0/131070604/3904395.pdf
    • http://nimeti.echeloncatapult.org/uploads/1/3/1/3/131379803/muvevilaxiridi.pdf
    • http://bimaxofus.matsujewellery.com/uploads/1/3/1/3/131398140/xaxesujugafupibeb.pdf
    • https://cdn.shopify.com/s/files/1/0432/5058/1662/files/3361418185.pdf
    • https://cdn.shopify.com/s/files/1/0434/5842/9078/files/power_system_analysis_grainger.pdf
    • https://cdn.shopify.com/s/files/1/0440/0594/9590/files/tratamiento_candidiasis_oral_nios.pdf
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/siworileborawituduxamumaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/461677233.pdf
    • https://cdn.shopify.com/s/files/1/0436/7086/4025/files/95370603088.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1685/files/82384011522.pdf
    • https://cdn.shopify.com/s/files/1/0431/2091/8679/files/biochemical_test_of_microbiology.pdf
    • https://cdn.shopify.com/s/files/1/0437/9141/7495/files/bonang_mohale_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/3305/1814/files/besobop.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063c5.bin
292f3b672a49868107e82143dddb9d2e956a712ee145a40314f81f233a3480b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x63C5 5164 bytes
font_01_sfnt_off0000752d.bin
9b4e336c16d1f3f4e1bf365ffdef6c46129dd5aecfd6565aa922954c99bee44a
pdf-font-stream PDF embedded font (sfnt) at offset 0x752D 10708 bytes
font_02_sfnt_off000099fc.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x99FC 4324 bytes