Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b06eba54f510f9c…

MALICIOUS

PDF

40.7 KB Created: 2020-08-03 05:44:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b93ba8fdc2b9a97d58799bc0df06c434 SHA-1: c19aa77c175a5ac07d880430d856b10608522f0f SHA-256: 9b06eba54f510f9c186a7eeaa232920adc521375dee2dcca40af9a3eecd59949
140 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, directing users to `https://ttraff.cc/wb?keyword=ca%20ipcc%20books%20online%20pdf`. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on `cdn.shopify.com`. The document body, though heavily obfuscated, contains text related to 'ca ipcc books online pdf' and the redirector URL, suggesting a lure to a malicious site. The presence of a callback phishing lure heuristic further supports the malicious intent.

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.
  • 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
  • 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/wb?keyword=ca%20ipcc%20books%20online%20pdf
    • http://files.pcconcertseries.org/uploads/1/3/2/6/132681452/d450f8116911.pdf
    • http://files.elliskerleyfoundation.org/uploads/1/3/0/8/130814397/muvesadoruvimujovu.pdf
    • http://files.jamesbev.com/uploads/1/3/0/8/130874284/mebogibome.pdf
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/zugabopesajuf.pdf
    • https://cdn.shopify.com/s/files/1/0429/3951/5039/files/jorevefoja.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3429/files/guravosi.pdf
    • https://cdn.shopify.com/s/files/1/0438/5135/0166/files/3252974554.pdf
    • https://cdn.shopify.com/s/files/1/0433/5442/3464/files/tera_ninja_guide_2017.pdf
    • https://cdn.shopify.com/s/files/1/0431/9713/7056/files/14741453998.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/rizupaxodelazosogamu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2444/0729/files/juluzuwevavul.pdf
    • https://cdn.shopify.com/s/files/1/0437/8935/3117/files/vuvarajimapanimamulaj.pdf
    • https://cdn.shopify.com/s/files/1/0435/2252/3288/files/rekafu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/godonedes.pdf
    • https://cdn.shopify.com/s/files/1/0434/5144/9496/files/21383322630.pdf
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/93082795850.pdf
    • https://cdn.shopify.com/s/files/1/0431/1380/8033/files/96020546742.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_off000057eb.bin
e77a6bf959fac1f281b2b326731ecdbac4c760cc6e4183cb058e44e0d4b8afa1
pdf-font-stream PDF embedded font (sfnt) at offset 0x57EB 5164 bytes
font_01_sfnt_off00006987.bin
aa6f7bf2e309c396362304728efffaad7dd75790f01023450052069291611e8c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6987 14316 bytes