Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b1238aed1be7e24…

MALICIOUS

PDF

67.1 KB Created: 2020-04-05 06:08:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9329120f5b4495586e6f46a656f92145 SHA-1: b60146ea40a01fd12855ae47c23991d84f926a88 SHA-256: 4b1238aed1be7e2445e38e82e7441bcdbc27d8e681d9625a8f0f46b09be2dff3
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used in SEO link farms to manipulate search engine rankings or distribute malicious content. The document body, though partially corrupted, suggests a lure related to electrical plant installation diagrams. The primary attack pattern involves directing users to a network of linked websites, likely for phishing or malware distribution.

Heuristics 3

  • 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.
  • 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://kondra.ca/uploads/1/3/0/2/130287529/130287529.html#diagrama+de+instalacion+de+una+planta+electrica
    • http://ministryofmixology.com/uploads/1/3/0/5/130551619/satimixixi_zuniloma.pdf
    • http://kingfencetx.net/uploads/1/3/0/4/130490221/kuwipizibuw.pdf
    • http://missuniversevietnam2019.com/uploads/1/3/1/3/131383581/6445746.pdf
    • http://daoodbutt.com/uploads/1/3/1/1/131163945/2581234.pdf
    • http://fortagape.org/uploads/1/3/0/4/130483819/6935997.pdf
    • http://dunmorestates.com/uploads/1/3/1/0/131069840/zipilomakebiwunow.pdf
    • http://thinktankwealth.com/uploads/1/3/0/7/130775842/vifitora-rejezilapesip-nekagizib-pakez.pdf
    • http://rapidlocksmithswexford.com/uploads/1/3/0/5/130547142/2836792.pdf
    • http://voiceschorale.org/uploads/1/3/0/8/130873717/1256844.pdf
    • http://theflightpath.org/uploads/1/3/0/4/130489417/zezibenajefiziz.pdf
    • http://x-secutity.com/uploads/1/3/1/0/131070737/juxogafoteg.pdf
    • http://emitminimarket.com/uploads/1/3/0/5/130588928/62e20b9a084a.pdf
    • http://jenhagen.org/uploads/1/3/0/6/130639535/wabefani.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_off0000c32a.bin
27b3dd38c3fae7dab5ae1b3c07563316c508b817b7543f6349bb2cf23bb4593a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC32A 10176 bytes
font_01_sfnt_off0000e731.bin
6c16bd8f726a971f3bf19e0f4a791d00a23f3c5d32d39851918e162a73ba8d1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE731 16164 bytes

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