Malicious PDF — malware analysis report

Static analysis result for SHA-256 51b64cdb30594825…

MALICIOUS

PDF

174.3 KB Created: 2020-08-04 20:51:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93e22383a9a86d65a3b518daa082dfad SHA-1: 28c377abf97d117576af29df0ea88f40cba56bf4 SHA-256: 51b64cdb305948257db5dda63e59f7343594f9acad41bfd1ba73e31bae87fc07
68 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains fragments that suggest an urgency lure, such as 'account will be terminated' and 'action required within 24 hours'. This indicates a likely phishing or scam attempt designed to drive users to a malicious site.

Heuristics 3

  • 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.
  • 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=apa+reference+style+pdf+latest+edition
    • http://files.revwalter.com/uploads/1/3/2/8/132814305/likeginidomo.pdf
    • http://files.titanguitars.com/uploads/1/3/1/4/131483254/610317.pdf
    • http://files.rigirozziarts.com/uploads/1/3/0/7/130739227/sumode_simenegozipofek_rizinideki.pdf
    • https://cdn.shopify.com/s/files/1/0429/7054/6329/files/5451633610.pdf
    • https://cdn.shopify.com/s/files/1/0435/2330/9727/files/ruminupizanajopaxowipeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2095/files/3528888773.pdf
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/fugomuwekikamodeluseg.pdf
    • https://cdn.shopify.com/s/files/1/0438/6009/9222/files/nakuwuzurimovijofej.pdf
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/rojusavomutirowapol.pdf
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/kemikaviruvolig.pdf
    • https://cdn.shopify.com/s/files/1/0429/8843/7655/files/68009476881.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2695/files/rukagepidamiwitiwifo.pdf
    • https://cdn.shopify.com/s/files/1/0440/7921/8838/files/southwest_check_in_mobile.pdf
    • https://cdn.shopify.com/s/files/1/0428/7725/5836/files/satamokadidexemivutusav.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_off000260e3.bin
eeb1dec8d093b9f3b08c3ef7086a4f16fb428336617dddb2aaaa733ca69d18d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x260E3 5028 bytes
font_01_sfnt_off00027205.bin
5623ee99a75d2b690cdcbc45f43eb5883ead9c4980bf3d3ebfa5b02900ede8bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27205 12696 bytes
font_02_sfnt_off00029cbb.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29CBB 4324 bytes

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