Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b388b142a4ee4ca…

MALICIOUS

PDF

43.7 KB Created: 2020-08-11 18:49:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ec55259238e4b13b9fc096dd324f910 SHA-1: 1e0b54896a9c260f71d6c066beccd9f57213aeb6 SHA-256: 9b388b142a4ee4ca57ce82048e6622f04847d52307ab40953e3fdedfc2651570
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wb?keyword=guardian%20alarm%20manual'. Additionally, it exhibits a PDF link farm heuristic, with many links pointing to Shopify domains, including 'https://cdn.shopify.com/s/files/1/0435/6774/3139/files/avast_code_key_2015.pdf'. The document body also contains callback phishing lures, suggesting an attempt to trick users into calling a fraudulent support number.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/wb?keyword=guardian%20alarm%20manual
    • http://files.wattsdidierarchitects.com/uploads/1/3/2/6/132681194/4874096.pdf
    • http://files.synergistic-approach.com/uploads/1/3/2/6/132681233/8c3f43.pdf
    • http://mupamup.lyndajay.com/uploads/1/3/1/0/131070357/jaduxuboxutugo-renutegumudej.pdf
    • http://files.palmdesertspacover.com/uploads/1/3/1/3/131398235/linibubimeninin.pdf
    • https://cdn.shopify.com/s/files/1/0435/6774/3139/files/avast_code_key_2015.pdf
    • https://cdn.shopify.com/s/files/1/0432/7243/7913/files/nudawo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3765/4178/files/vafokawumomisewuta.pdf
    • https://cdn.shopify.com/s/files/1/0440/6142/5814/files/rig_veda_sanskrit_slokas.pdf
    • https://cdn.shopify.com/s/files/1/0428/3629/5836/files/settlement_keywords_independent.pdf
    • https://cdn.shopify.com/s/files/1/0436/4579/6512/files/kamageguxujepopamunaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/1057/2967/files/problem_statement_for_hospital_management_system.pdf
    • https://cdn.shopify.com/s/files/1/0439/2468/4955/files/acca_f5_past_papers.pdf
    • https://cdn.shopify.com/s/files/1/0432/1152/2209/files/midixodarilekik.pdf
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/xoseleketo.pdf
    • https://cdn.shopify.com/s/files/1/0428/2309/0343/files/gojejizanulut.pdf
    • https://cdn.shopify.com/s/files/1/0434/4479/7600/files/82469716241.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/
    • https://cdn.shopify.com/s/files/1/0432/1152/2209/fil

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006212.bin
6164700fae947ba5d5b076d393aefa5b2f4cee6248ddbb511f5483a5903266dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x6212 4396 bytes
font_01_sfnt_off000070c5.bin
02c6fa168ef3cfa87616f3e93aeb8a31882665cc62111fff65fcbfa652361e97
pdf-font-stream PDF embedded font (sfnt) at offset 0x70C5 10128 bytes
font_02_sfnt_off00009375.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x9375 4324 bytes