Malicious PDF — malware analysis report

Static analysis result for SHA-256 22252013b26e30a4…

MALICIOUS

PDF

56.0 KB Authoring application: pdf-parser
MD5: 544cdf9440bd78ddba5e474b5137157c SHA-1: 5c25ce8941f049d5c6e6db3109828545622e5b4a SHA-256: 22252013b26e30a48a8121e52e41d7f965ba11dd18f6fd325f4dd0cabc642a62
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV, specifically as a phishing variant. The primary heuristic firing indicates a 'PDF_SEO_LINK_FARM', suggesting the document's purpose is to host a large number of external links, likely to manipulate search engine results or redirect users to malicious content. The embedded URLs reinforce this, with one identified as the primary link farm target.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://agentemily.com/uploads/1/3/0/6/130604044/bumowoworodop.pdf
    • http://avishafilm.weebly.com/uploads/1/3/0/2/130287835/2180250.pdf
    • http://breastfeedingcork.com/uploads/1/3/0/4/130435972/973990b7c89192.pdf
    • http://routt4hscholarship.com/uploads/1/3/0/5/130538863/wavupijizuzunabobu.pdf
    • http://mishevski.de/uploads/1/3/0/6/130620666/wiloroja.pdf
    • http://absoluteventoparty.com/uploads/1/3/0/6/130621870/2621665.pdf
    • http://lawncarebenton.com/uploads/1/3/0/4/130483146/3317914.pdf
    • http://nateveorganics.com/uploads/1/3/0/4/130476572/f088e4e.pdf
    • http://naruseclimbingschool.weebly.com/uploads/1/3/0/6/130639578/nerosupumezokijelafo.pdf
    • http://nashobavalleyextractco.com/uploads/1/3/0/3/130379777/130379777.html#manualidades+de+navidad+con+papel+iris

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001297.bin
2fc2b09baff3eb2ae654600aaed8f0d7338b4cf2dc5ca277f7333a3d03be956c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1297 9044 bytes
font_01_sfnt_off000094b4.bin
883da3e2ad32b51d5d6d38481a4365262fc3c9e6a18827603249468ef1308e05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94B4 16152 bytes

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