Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b6ba1b0a96a28d4…

MALICIOUS

PDF

50.1 KB Created: 2020-08-21 15:14:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34622350587942b3fee94ecf227bdb74 SHA-1: 90357ccc3abd2337cc578dcd7e3d77cf4b11375e SHA-256: 3b6ba1b0a96a28d40f2579184247c781dff1eae7360e66dcd45477ad491944bf
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it's a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=capital+one+account+information'. The document body, though heavily obfuscated, contains text related to 'Capital one account information' and urgency lures, aligning with phishing attempts. The presence of numerous embedded links, many hosted on Shopify, suggests a link farm designed to obscure the final malicious destination. No scripts were extracted from this sample.

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=capital+one+account+information
    • http://files.bristolzen.org/uploads/1/3/1/4/131438571/6093747.pdf
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/sifitaroxowubimolokug.pdf
    • https://cdn.shopify.com/s/files/1/0433/5442/3445/files/kojarupifokeled.pdf
    • https://cdn.shopify.com/s/files/1/0435/2878/1973/files/69928219487.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20807514836.pdf
    • https://cdn.shopify.com/s/files/1/0430/8772/4704/files/aashto_bridge_design_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/pukipadesaduzepuzuvum.pdf
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/85410595646.pdf
    • https://cdn.shopify.com/s/files/1/0429/3020/8924/files/software_automation_testing_secrets_revealed_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/5090/1402/files/72929970742.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/vofudomawadoxupe.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/student_council_speeches_examples.pdf
    • https://cdn.shopify.com/s/files/1/0430/6331/2533/files/chinese_food_recipes.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_off000079ac.bin
50c6aa8bb94555cdfbb35d2e75740dcd8e4e2a60ba827cf62c139b8157dade63
pdf-font-stream PDF embedded font (sfnt) at offset 0x79AC 4888 bytes
font_01_sfnt_off00008a3a.bin
c9d26d2cb999f064b6d5dca50b35f6a59af6d7c2a67a145876cec891aff2d7d3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A3A 10436 bytes
font_02_sfnt_off0000adb0.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xADB0 4324 bytes