Malicious PDF — malware analysis report

Static analysis result for SHA-256 314c329b9cf64c23…

MALICIOUS

PDF

44.8 KB Created: 2020-08-10 20:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae9901ce9f4d3c06eb4ad6706c6c7539 SHA-1: ce01186c3fef3fffb90d036bdad150345eb09801 SHA-256: 314c329b9cf64c231d337151125d5903779a3144b1498648a2645a760860e1c3
128 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'free adf aptitude test practice pdf' and includes the malicious URL. This suggests a phishing or scam attempt, leveraging a lure of practice materials to trick users into visiting a malicious site.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=free+adf+aptitude+test+practice+pdf
    • http://files.jillturnerassociates.co.uk/uploads/1/3/1/4/131452733/sijodade.pdf
    • http://files.cldlab.com/uploads/1/3/1/0/131070336/gejewapogodurezefefu.pdf
    • http://files.danielfentonanderson.com/uploads/1/3/1/4/131455337/begefolok-kobujezizo-torenimo.pdf
    • http://files.butterbeanproductions.com/uploads/1/3/0/8/130874493/kogokulir.pdf
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/tabig.pdf
    • https://cdn.shopify.com/s/files/1/0436/6319/6310/files/judawituzifekurujolaxux.pdf
    • https://cdn.shopify.com/s/files/1/0438/2140/0226/files/38384834993.pdf
    • https://cdn.shopify.com/s/files/1/0428/7306/1532/files/luxukarejavoneleruxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7043/1125/files/sivipiteki.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/74780022301.pdf
    • https://cdn.shopify.com/s/files/1/0434/7035/6632/files/towofikivebopeladej.pdf
    • https://cdn.shopify.com/s/files/1/0433/3695/8106/files/jijarixelotowozetejiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/70190920169.pdf
    • https://cdn.shopify.com/s/files/1/0440/5841/1158/files/zerodha_varsity_module_3.pdf
    • https://cdn.shopify.com/s/files/1/0447/3644/6613/files/gta_5_playlists.pdf
    • https://cdn.shopify.com/s/files/1/0432/5166/3012/files/leguwekumasa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0792/5664/files/superior_drummer_3_free.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_off00006462.bin
c72eee59a9f412d609cafcc1ab16677da2f81e98799a4a6425e1e838faddc409
pdf-font-stream PDF embedded font (sfnt) at offset 0x6462 4740 bytes
font_01_sfnt_off00007490.bin
bd38eed71ccc422a8b103fa61dfbcf9035a48ea6d8ec5c9720854d3fde0fe6d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7490 10488 bytes
font_02_sfnt_off0000983e.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x983E 4324 bytes