Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d3f3a07ebf4267f…

MALICIOUS

PDF

37.9 KB Created: 2020-08-13 23:15:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ed11f962f83314fa863cac7af6d19f47 SHA-1: 361b19c60d6e87022541950154ed34ec7db5c7d7 SHA-256: 1d3f3a07ebf4267f6f169ec61ec9a19bd0147456baaea6be04bcaa7d397a33ad
130 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to Shopify domains hosting other PDFs, and one critical link redirects to a known malicious domain. The document body mentions 'ccleaner professional free trial' and includes a URL that appears to be a redirector for this keyword. This suggests a phishing or scam attempt leveraging a lure for popular software. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.cc/pify?keyword=ccleaner+professional+free+trial
    • http://files.sarahlacyphd.com/uploads/1/3/1/4/131438282/kidiwenegav-lakovaxokevodem-fagodiwiwobok.pdf
    • http://xetirivir.comprehensiveallergynyc.com/uploads/1/3/0/7/130739777/555700.pdf
    • http://jeded.swarthmorehorticulturalsociety.org/uploads/1/3/1/4/131407406/gonisugixij-kolif-tupofugenago-pokori.pdf
    • http://files.orowater.net/uploads/1/3/1/4/131407106/patege.pdf
    • http://files.stmarkswv.org/uploads/1/3/2/6/132696029/99815005.pdf
    • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/xapemona.pdf
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/pimoxogetiru.pdf
    • https://cdn.shopify.com/s/files/1/0438/7838/3771/files/32454719526.pdf
    • https://cdn.shopify.com/s/files/1/0435/0266/5892/files/35019894688.pdf
    • https://cdn.shopify.com/s/files/1/0431/3756/4839/files/pro_tools_le_8_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/3265/5525/files/xetinajugoxagerogaxul.pdf
    • https://cdn.shopify.com/s/files/1/0437/7929/3338/files/papetepiweder.pdf
    • https://cdn.shopify.com/s/files/1/0431/2753/7828/files/nigufuxazuwizotugozi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/92334849220.pdf
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/pasovisinafoliginipi.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_off00005693.bin
33f0a88fefdfb3533436282e689cf5d096a4f072553ced08ed04db610e89d0e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x5693 4916 bytes
font_01_sfnt_off00006749.bin
766678825f8ea2623c20f072e2482368ed387568c776fe52948422613c8d943c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6749 10688 bytes