Malicious PDF — malware analysis report

Static analysis result for SHA-256 a64f21e6a4a7dc3c…

MALICIOUS

PDF

44.2 KB Created: 2020-08-08 19:48:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fbc9c8b5172a7ab271d0b830d9ef9c0 SHA-1: 36b7507d47efe10a11c395eefd83f74b2fc4a5fb SHA-256: a64f21e6a4a7dc3ca43705671790801a9ac47b3db31ef61ec27b84b19287a5c2
128 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links, including one that redirects to known malicious infrastructure via 'ttraff.cc'. The document body and heuristics indicate a lure for downloading educational content, which is a common tactic for phishing or malware delivery. The presence of a visual download button further supports this malicious workflow.

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/pify?keyword=cbse+class+11+physics+syllabus+pdf+download
    • http://files.movingthroughpeaks.com/uploads/1/3/1/3/131378932/wixexapix.pdf
    • http://files.rodeoqueenofhearts.shop/uploads/1/3/1/4/131408170/dopasorol.pdf
    • http://files.campingasseiceira.com/uploads/1/3/1/0/131070485/tetutigafixipa-toxodikexolibi.pdf
    • http://files.mantleofelijah.org/uploads/1/3/1/4/131406105/01a0c.pdf
    • https://cdn.shopify.com/s/files/1/0430/3175/6957/files/antonyms_worksheets_for_grade_5.pdf
    • https://cdn.shopify.com/s/files/1/0432/9878/3382/files/25214738023.pdf
    • https://cdn.shopify.com/s/files/1/0432/9403/2025/files/getting_the_love_you_want.pdf
    • https://cdn.shopify.com/s/files/1/0432/3275/5875/files/new_holland_472_haybine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/2219/5608/files/gutuk.pdf
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/cancer_treatment_protocols.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/9816259640.pdf
    • https://cdn.shopify.com/s/files/1/0438/2385/7824/files/71187129253.pdf
    • https://cdn.shopify.com/s/files/1/0431/4152/9762/files/gopig.pdf
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/questes_princpios_da_administrao_pblica.pdf
    • https://cdn.shopify.com/s/files/1/0433/7447/7473/files/tabemorixunopul.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/xorijujapavow.pdf
    • https://cdn.shopify.com/s/files/1/0430/0416/6297/files/vesesafema.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_off00006d37.bin
efe6f8104aee828c0a7044e4d25f48d82054ae81a9d87b149846ab09cd0ddd62
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D37 5436 bytes
font_01_sfnt_off00007fcd.bin
0b70721a5db8b101514a42b8e483c314ae6d87b924db888c935d75bec336f4b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCD 10980 bytes