Malicious PDF — malware analysis report

Static analysis result for SHA-256 00ead99b0aaf2aa0…

MALICIOUS

PDF

39.5 KB Created: 2020-08-20 09:31:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1933482dbb95b955d94ac07fd9255d9b SHA-1: 192a88e214b0cdf461eacfc3a5c5127116a0d035 SHA-256: 00ead99b0aaf2aa084713b1ab82c7eb9a7308c89854c08af4f192249abf589e8
174 Risk Score

Malware Insights

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

The PDF document contains embedded links, one of which, https://ttraff.cc/pify?keyword=3+day+notice+to+vacate+california+template, is identified as a malicious redirector. The document body, though partially obfuscated, suggests a lure related to legal notices, aligning with phishing or scam tactics. The presence of numerous other PDF links further indicates a link farm or redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=3+day+notice+to+vacate+california+template
    • http://files.mrdugalmusic.com/uploads/1/3/1/3/131379578/watowexixozut.pdf
    • http://files.bullbearkidsbooks.com/uploads/1/3/2/6/132681404/medewesiposade.pdf
    • http://dagabati.goodshortstories.net/uploads/1/3/0/8/130874038/04556dcab29f8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/6423/7992/files/39846610432.pdf
    • https://cdn.shopify.com/s/files/1/0440/6083/6005/files/endless_war_4_hacked.pdf
    • https://cdn.shopify.com/s/files/1/0434/3008/4760/files/tubixexe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7157/8024/files/58836403419.pdf
    • https://cdn.shopify.com/s/files/1/0433/9387/6118/files/49757629956.pdf
    • https://cdn.shopify.com/s/files/1/0439/8609/2190/files/kg_to_lbs_converter.pdf
    • https://cdn.shopify.com/s/files/1/0437/1139/8039/files/46581691549.pdf
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/88430071229.pdf
    • https://cdn.shopify.com/s/files/1/0463/5803/6641/files/lesson_plan_template_for_english_teachers.pdf
    • https://cdn.shopify.com/s/files/1/0431/6564/7002/files/dotabosuv.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cb5.bin
b0c120f9cc48f5891887edcdab05ebaa1a80ab52af1be709e3acd6f5f3d3de6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB5 5356 bytes
font_01_sfnt_off00006ed8.bin
f8bd57277bdc17b9a259325c6b8d8b2046459a66d766890dda81e96bd8b87b51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED8 10120 bytes

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