Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1c29c994623c670…

MALICIOUS

PDF

34.8 KB Created: 2020-04-04 15:33:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 64e2fa0ba43413b21b31798734e3975e SHA-1: c22ec04db0fcc5bc19b0da584deeb680d0066467 SHA-256: e1c29c994623c67076fe103cb544bea9025f6a0fe43c0137e49ab5786f4e9d7b
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded JavaScript and a large number of external links, many of which point to other PDF files. The document body text and the URLs suggest a lure to download more content, likely malicious. The embedded JavaScript is likely used to facilitate the download or execution of further payloads.

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://tedrabinowitzcopywriter.net/uploads/1/3/0/5/130550961/130550961.html#sherlock+holmes+short+stories+book+pdf
    • http://adentabrazil.com/uploads/1/3/0/8/130873737/nawafadife-jadiripawogus-penugifazamezon-depewir.pdf
    • http://galsinstitute.org/uploads/1/3/0/5/130543483/1332194.pdf
    • http://agtees.com/uploads/1/3/0/3/130323803/1224022.pdf
    • http://friendshipriverpottery.com/uploads/1/3/0/6/130604566/7b44ba4f93.pdf
    • http://rodpennphoto.com/uploads/1/3/0/6/130621801/kagarog.pdf
    • http://iamgood.ca/uploads/1/3/1/1/131164231/1b2105a2501c370.pdf
    • http://myskinchick.com/uploads/1/3/0/3/130313169/ca2c3373fc26f.pdf
    • http://giorgilondon.com/uploads/1/3/1/1/131164377/6386965.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_off000061db.bin
f8b3af2c3de6de835eeb3d9d1718e000ae355aefe9c90f03dc41bb01ad2b8eda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61DB 7336 bytes

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