Malicious PDF — malware analysis report

Static analysis result for SHA-256 694c615644b89b81…

MALICIOUS

PDF

35.6 KB Created: 2020-08-26 10:11:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46e61a0840a3c43ecb965ef532625fc8 SHA-1: bc84e27b8e6a347f48467cb80e29e4133da9a1c2 SHA-256: 694c615644b89b81892fa861ef39ac301131a06b8a3811079ace6fc022424d76
154 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links, with one identified as a known malicious redirector. The ML classifier also flagged this PDF as malicious with high confidence. The embedded links likely serve to lure the user to malicious websites, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=letra+como+quiero+odiarte
    • http://files.anndcroghanart.com/uploads/1/3/1/4/131453214/221951.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/4654/2229/files/battleon_farming_guide.pdf
    • https://cdn.shopify.com/s/files/1/0437/3292/6616/files/6821363326.pdf
    • https://cdn.shopify.com/s/files/1/0437/6687/4266/files/lego_frozen_castle_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/16692523015.pdf
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/vernier_calliper_measurement.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60359225188.pdf
    • https://cdn.shopify.com/s/files/1/0430/4705/9607/files/wuwavexumo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/puturekapifozofiri.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2951/files/hudson_park_pima_cotton_sheets.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_off00004c6a.bin
0888f7e80b69c32897a4ada81f2d5bc6093a731acee8a131ccf720a091bcb674		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C6A 4944 bytes
font_01_sfnt_off00005d1a.bin
bd133f31eaa18fed53f3a778a3a201086667ca29ea1b6e09afd731b216ed2e9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D1A 10956 bytes

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