Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e191d7cfc79b0ad…

MALICIOUS

PDF

62.1 KB Authoring application: GIMP
MD5: 97b91b3c1104f02f56cb55dda57fc9bf SHA-1: 1066f3ab3864647539ca10476913eabcc4d3f133 SHA-256: 9e191d7cfc79b0ad7f231858b52be93632ed01a824e54cab44d95e14b8aaf2e0
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a link farm and a machine learning model indicating high maliciousness. ClamAV also identified it as phishing malware. The document body contains numerous external URLs, suggesting a phishing or redirection attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://michifuzz.com/uploads/1/3/0/6/130622068/afe3b.pdf
    • http://wajoji.lesfondsdequilles.com/uploads/2020/01/29/8630490.pdf
    • https://vozugufuzul.weebly.com/uploads/1/3/0/2/130288468/32bf1.pdf
    • http://nangginkui.com/uploads/1/3/0/5/130550663/5716293fcd.pdf
    • http://placitasdemocratsandfriends.com/uploads/1/3/0/6/130621483/3976960.pdf
    • http://rebieramoso.net/uploads/1/3/0/5/130551343/7823353.pdf
    • http://sourlandmountainwriter.com/uploads/1/3/0/3/130323515/faxusizaleluduwazek.pdf
    • http://nathannasbymusic.com/uploads/1/3/0/4/130483348/6762401.pdf
    • http://midwesthomebuild.com/uploads/1/3/0/6/130640126/veroteragov_jozapakizaroxu.pdf
    • http://afaparents.org/uploads/1/3/0/6/130604370/130604370.html#shield+volcano+volcanoes+formed

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001385.bin
caef231869fe6054e1cd6edc6e0ff1db2c9354957e60bb237676cd13558fd1d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1385 10336 bytes
font_01_sfnt_off0000adcd.bin
7452b6b49b2d67df973eecb7580c7a2fe344bf55d7b957b3ade50b6969c50269		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADCD 16068 bytes

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