Malicious PDF — malware analysis report

Static analysis result for SHA-256 af3343c9373bcd14…

MALICIOUS

PDF

252.6 KB Created: 2020-08-17 17:14:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 25bec31b15c32d15a425d2da1ae60327 SHA-1: 0a613f0f2d2798395d16d9b802da22ae8a316a11 SHA-256: af3343c9373bcd14430c5fa0551378a0b2cb23f99921fa2bfdb0a7d03c4110b6
70 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, contains the same URL. The presence of urgency language further supports a phishing or social engineering attack pattern. The primary IOC is the malicious redirector URL.

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.ru/pify?keyword=idsa+cap+guidelines+pediatrics
    • http://nakilo.rubyeyes.com/uploads/1/3/1/8/131856725/nuronisula-wozotevudusar-lamodaxa.pdf
    • https://cdn.shopify.com/s/files/1/0437/3767/7985/files/76734834192.pdf
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/51382579315.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0071/files/82772752872.pdf
    • https://cdn.shopify.com/s/files/1/0434/5580/7640/files/muxolarexusopesoriwaf.pdf
    • https://cdn.shopify.com/s/files/1/0435/0309/1876/files/barreras_no_arancelarias_peru.pdf
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/kerala_driving_licence_learners_test_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/xojaba.pdf
    • https://cdn.shopify.com/s/files/1/0432/6303/3507/files/kero_kero_bonito_flamingo_recorder_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0434/6796/4580/files/80343279017.pdf
    • https://cdn.shopify.com/s/files/1/0430/7920/5018/files/saxevipobezuteguwovikulif.pdf
    • https://cdn.shopify.com/s/files/1/0447/9169/3463/files/kabbalah_teachings.pdf
    • https://cdn.shopify.com/s/files/1/0432/9707/9460/files/volkswagen_touareg_2012_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/9847/0552/files/9560038803.pdf
    • https://cdn.shopify.com/s/files/1/0432/2839/7732/files/memorator_chimie_anorganica.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_off000389cd.bin
662f7c7dd248c4d3a28b03efc53832772218e7337c99c69c00c8c0a0c3ba9444		 pdf-font-stream PDF embedded font (sfnt) at offset 0x389CD 5180 bytes
font_01_sfnt_off00039b76.bin
6bfc574850498327723059959ad47a306f1b82028a749b16fe297d6879f6d34b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x39B76 16312 bytes
font_02_sfnt_off0003ce5b.bin
ebaa9d42c58e3fd25c8264bcf4ef2319fee467c92cf53dcc1f377a20fc8d39b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CE5B 16148 bytes

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