Malicious PDF — malware analysis report

Static analysis result for SHA-256 2072dde69fe4c756…

MALICIOUS

PDF

40.0 KB Created: 2020-06-06 07:42:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66af6c63c5317f0c2500947f18b8e75b SHA-1: c3934557e48e5f49a00a02ad1f5720b39f2336bd SHA-256: 2072dde69fe4c756e347033c7fc73b3fd758e5b6f2a4ba533d60dcc555c26446
70 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO link farms or redirecting users to malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, with 'rockandrowel.com' being a dominant host. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic suggests a lure to encourage user interaction. The document body, though heavily obfuscated, contains URLs that align with the heuristics, pointing towards a malicious workflow of redirecting users to potentially harmful websites.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://yourridehomeohio.com/uploads/1/3/1/1/131164524/131164524.html#drawing+from+the+right+side+of+the+brain+pdf
    • http://rockandrowel.com/uploads/1/3/1/3/131398516/3138030353.pdf
    • http://reeceshomemadedoggietreats.com/uploads/1/3/0/7/130776555/dusolume.pdf
    • http://indianalegal.org/uploads/1/3/0/5/130551859/c525f69420b3.pdf
    • http://postmaster.kalkvrijwonen.nl/uploads/1/3/0/4/130483512/notupabak-zulaza.pdf
    • http://laurenanddom.com/uploads/1/3/1/4/131413550/dibos.pdf
    • http://genealogybykim.com/uploads/1/3/1/3/131380345/3758156.pdf
    • http://oxforduchina.com/uploads/1/3/0/5/130546434/vemedonutob.pdf
    • http://nheywood.com/uploads/1/3/1/3/131381150/1911172.pdf
    • http://mail.janebellinteriordesign.com/uploads/1/3/1/3/131383358/deraxazewix.pdf
    • http://theliberiafund.org/uploads/1/3/0/5/130550976/7732268.pdf
    • http://yourridehomeohio.com/uploads/1/3/1/1/131164524/terms.html
    • http://yourridehomeohio.com/uploads/1/3/1/1/131164524/dmca.html
    • http://yourridehomeohio.com/uploads/1/3/1/1/131164524/policy.html
    • http://character.ua.edu/uploads/1/3/0/3/130323127/2917154.pdf
    • https://kexukud.files.wordpress.com/2020/06/77261230193.pdf
    • https://zarenorazer.files.wordpress.com/2020/06/sifokutevizaxusa.pdf
    • https://sunadasuz.files.wordpress.com/2020/06/wamurudaseroni.pdf
    • https://vatanabigu.files.wordpress.com/2020/06/zozovi.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000709f.bin
5c8acc022d9339b8add635141fc7b5ffa8f06cd20825feea8a211cfe3c09fd7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x709F 10412 bytes

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