Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b59f5bb6f1f210d…

MALICIOUS

PDF

141.8 KB Created: 2020-07-29 09:14:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1882bbdd7fb9c55ef8bda1b79ab77b4d SHA-1: 8115d6310da8b2104d03b8b6a4ea0cba56db2416 SHA-256: 0b59f5bb6f1f210d00abd809cfff2aa0ca808b9ce0752a30c0150ac4eeeb4e0c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to harmful content. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'I cavalieri dello zodiaco' and mentions wkhtmltopdf, suggesting a potential exploit or redirection mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • 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=i+cavalieri+dello+zodiaco+hades+episodi
    • http://files.chloescheel.com/uploads/1/3/1/4/131407818/vimuzowumezikex-xorikomi-sebarobefewifu.pdf
    • http://files.22ave.tv/uploads/1/3/0/8/130874594/c04ee.pdf
    • http://files.cofchristslc.org/uploads/1/3/1/4/131453370/burufozukupuxubulof.pdf
    • http://files.mikkiscreations.shop/uploads/1/3/1/4/131453053/lazopuwuwokes_vuxewadejene_xizumox.pdf
    • http://files.kiyashanti.com/uploads/1/3/0/7/130775002/moxotute_zokekabo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/1325/0965/files/firemikogavorewudenolupu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/44528135528.pdf
    • https://cdn.shopify.com/s/files/1/0440/3986/4485/files/duketimisotomotajamadelo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/jutorujazigafid.pdf
    • https://cdn.shopify.com/s/files/1/0433/6641/6549/files/pitew.pdf
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/54980903056.pdf
    • https://cdn.shopify.com/s/files/1/0436/9973/2635/files/kopepugaposupazowi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/95233988859.pdf
    • https://cdn.shopify.com/s/files/1/0427/9717/0847/files/29799339940.pdf
    • https://cdn.shopify.com/s/files/1/0433/9177/8965/files/35703055579.pdf
    • https://cdn.shopify.com/s/files/1/0429/8499/7017/files/najuzalesixededa.pdf
    • https://cdn.shopify.com/s/files/1/0438/4640/2198/files/52938447326.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001729d.bin
e4bf21243b78e295b522be40e7f925e66b08a679c456f0e40534351159b8c253		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1729D 37732 bytes
font_01_sfnt_off0001e795.bin
3e198d3d48ee77f0ff60670989d028898dffeea35c070ce22aed681c21ee0929		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1E795 4812 bytes
font_02_sfnt_off0001f7f8.bin
743167f1fcc219b8896670172f430b6409d2a25a5e3417580295ce2152d7456c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F7F8 15612 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.