Malicious PDF — malware analysis report

Static analysis result for SHA-256 3643cea60f89b95a…

MALICIOUS

PDF

52.2 KB Created: 2020-03-28 08:06:52 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b4c5eba7c8ea0d9a2bc9e4a3196b78af SHA-1: f685a0c48de3f73ae1a4ad9be8f140d248d24abe SHA-256: 3643cea60f89b95a584981ee1dbb087781500c7057ab7a136d5720867e870b40
102 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on similar domains. This pattern is indicative of a link farm designed to obscure the true malicious intent. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests that the document's purpose is to trick the user into downloading a password-protected archive, likely containing a secondary payload. The embedded URLs are part of this lure, directing users to potentially malicious content.

Heuristics 4

  • 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.
  • 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://nursingarmpillow.com/uploads/1/3/0/4/130435777/130435777.html#examen+diagnostico+segundo+preescolar+gratis
    • http://securitydoors.com.co/uploads/1/3/0/5/130589385/tisisuwosesoxik.pdf
    • http://ttmusb.com/uploads/1/3/0/6/130604422/d4e7a.pdf
    • http://warnerbrocareer.com/uploads/1/3/0/7/130739490/69a9fc54ad3.pdf
    • http://creativwork.net/uploads/1/3/0/2/130272925/63d60ef66.pdf
    • http://bbf-cafe.store/uploads/1/3/0/2/130287513/nifek_porekajemamezu_rajubulaxaxunu.pdf
    • http://www.toyotacimanggis.com/uploads/1/3/0/4/130435998/831821.pdf
    • http://soundsbyleah.com/uploads/1/3/0/2/130271114/1858361.pdf
    • http://thesupporthelp247.com/uploads/1/3/0/2/130288710/e9e8cd2673.pdf
    • http://www.thetravelingbeanblog.net/uploads/1/3/0/4/130483963/womukolapewuw-rosujizog-mujetufo-tafobalovor.pdf
    • http://www.thereforemade.com/uploads/1/3/0/6/130622083/bcb232cd12261.pdf
    • http://pamelagallagher.com/uploads/1/3/0/2/130272905/galetawe.pdf
    • http://metallicblackrecords.com/uploads/1/3/0/7/130739173/2660528.pdf
    • http://agostinodeangelis.com/uploads/1/3/0/4/130478307/xejejafom.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ab1.bin
bd80359ab40965e2d8421636f2b1a15c8ef2cee5fde90f2f69e094f79957f0dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB1 10452 bytes
font_01_sfnt_off0000af40.bin
ad6001544931b982f6f7da1832bf13fec8344b0eac1307571a142e09cd2bc38c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF40 2628 bytes
font_02_sfnt_off0000b885.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB885 1708 bytes

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