Malicious PDF — malware analysis report

Static analysis result for SHA-256 56436ca00bb95460…

MALICIOUS

PDF

43.9 KB Authoring application: Scribus
MD5: eec27d160dd9187164f2928480085a1a SHA-1: 0e7a627c61dcb78f65c229f291f772cacdca984f SHA-256: 56436ca00bb954607c377ea7f8c42a8a902f6fa67f91e47f9a7d0b03fd730ef8
150 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, as detected by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also indicate maliciousness. The embedded URLs suggest a link farm designed to redirect users to potentially malicious content, likely for phishing or malware distribution.

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://sacredsecretskincare.org/uploads/1/3/0/5/130544539/b4c4982c218a.pdf
    • http://mvbabysitting.com/uploads/1/3/0/5/130544781/xinexe.pdf
    • http://nwcbuildingservices.com/uploads/1/3/0/6/130621785/5f19fa844dc4.pdf
    • http://essteamlab.com/uploads/1/3/0/2/130272347/kolakejojowopowomara.pdf
    • http://mobilenotaryinca.com/uploads/1/3/0/6/130604351/busezoraporutil.pdf
    • http://oakmountainfirewood.com/uploads/1/3/0/4/130489367/6964306.pdf
    • http://treshaimsportfolio.com/uploads/1/3/0/5/130550993/4039159.pdf
    • http://newdaymakers.org/uploads/1/3/0/4/130483939/b4351fe4dd266.pdf
    • http://cfthomas.com/uploads/1/3/0/6/130621477/130621477.html#4d+anatomy+app+android

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000117e.bin
010fa116965f0472354909e279e25fe641803b8d522aee2f9334f0f58766ebca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x117E 8204 bytes
font_01_sfnt_off00005c23.bin
b32191d6dac1903e3ec139b3e91a40f13938de3dcb588c278e0c60d9389fdf24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C23 16096 bytes
font_02_sfnt_off00007095.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7095 2652 bytes

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