Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b87b1d0e4f513c9…

MALICIOUS

PDF

57.6 KB Created: 2020-04-12 21:46:18 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 24028bab923806ff235b9be8a292a0ec SHA-1: 6d30b0f60c0eace43676fd066a5c2fe632f6998e SHA-256: 3b87b1d0e4f513c924abc50d486d7be2fd9006420a6fa564e6dff56cbb666d74
144 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on suspicious domains, suggesting a link farm or redirection mechanism. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates that the document contains instructions for executing Windows scripting tools, and 'SE_PASSWORD_ARCHIVE_LURE' suggests a tactic to bypass security controls by instructing the user to provide a password for an archive. The embedded URL 'http://theclassyandjazzyboutique.com/uploads/1/3/0/3/130323210/130323210.html#instalar+apache2+en+ubuntu+server+16.04' likely serves as a lure to download further malicious content.

Heuristics 5

  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://theclassyandjazzyboutique.com/uploads/1/3/0/3/130323210/130323210.html#instalar+apache2+en+ubuntu+server+16.04
    • http://southbeltongt.net/uploads/1/3/0/2/130272976/lewigodegalawazim.pdf
    • http://spoondriftboutiquellc.com/uploads/1/3/1/3/131398095/2043002.pdf
    • http://realtorsoli.com/uploads/1/3/1/0/131070497/totilifo.pdf
    • http://bayareabirthways.com/uploads/1/3/1/3/131383562/rofawigafarut.pdf
    • http://designeveryday.net/uploads/1/3/0/8/130874127/08e97f3486.pdf
    • http://rentyourfbads.com/uploads/1/3/0/6/130621606/e8f2715bd61bd2a.pdf
    • http://freewalkers.com/uploads/1/3/1/3/131380308/58948812aaa9385.pdf
    • http://peacelovebikinis.com/uploads/1/3/1/4/131438280/judelidani.pdf
    • http://viverbemcomdiabetes.com/uploads/1/3/0/7/130740419/9503072.pdf
    • http://almultiservices.ca/uploads/1/3/0/7/130739640/4363203.pdf
    • http://southbeltongt.net/uploads/1/3/0/2/130272976/lewigodegalawa
    • 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b38b.bin
c707e2ab4f8a684d617aa8e86b6a9ea7af4805beea211f49c85b843d679d2788		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB38B 10756 bytes

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