Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ac15f892ef0bfcb…

MALICIOUS

PDF

40.5 KB Created: 2020-04-04 08:55:36 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: f545be4b00eb9d627e11c25eec700614 SHA-1: 986517a5eab9e9a5b256c2e8c634cd8606da191f SHA-256: 1ac15f892ef0bfcb48d5f692323a2ad16ecfe8c09c196c9c7a8ef74e3f6176d4
102 Risk Score

Malware Insights

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

The PDF document contains numerous external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, suggesting a link-building or spam campaign. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates that the document may be intended to trick users into believing they need a password to access an archive, a common tactic for disguising malicious content. No scripts were extracted from this sample.

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://timeframingconsulting.com/uploads/1/3/1/4/131437490/131437490.html#ver+peliculas+online+gratis+entrevista+con+el+vampiro
    • http://flohsinn.com/uploads/1/3/0/5/130590739/2664d.pdf
    • http://1ecsp.com/uploads/1/3/0/2/130272500/ecb380a2d6f.pdf
    • http://aliabdelmohsen.com/uploads/1/3/0/9/130969430/9344135.pdf
    • http://faszination-gewalt.com/uploads/1/3/0/2/130288818/tidijifaz-wosunok.pdf
    • http://silk168.net/uploads/1/3/1/4/131409677/74add2af7065366.pdf
    • http://termitescincinnati.com/uploads/1/3/0/8/130813143/nipegavufupawaj.pdf
    • http://dariahmathews.com/uploads/1/3/0/5/130539074/vovuzepap.pdf
    • http://livingsimplysavage.com/uploads/1/3/0/5/130551251/bawivekuvifozuw-totub-mamuriwatibub-fubulobesikixe.pdf
    • http://gryphder.com/uploads/1/3/1/4/131406435/lajifexe-jokegal.pdf
    • http://fmtimove.com/uploads/1/3/1/3/131398053/sigivo.pdf
    • http://petesfishtales.net/uploads/1/3/0/8/130814238/afdc8.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000642d.bin
5278024270de67705d3a5034a26ce2f5e1d9e53f50705cc770b2190155f81e7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x642D 6728 bytes
font_01_sfnt_off000074d0.bin
917b61de3751d3de297b8e713e6a99e654faa055b567d1c8c711544a1cc8167e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74D0 8640 bytes

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