Malicious PDF — malware analysis report

Static analysis result for SHA-256 2adb4232ca77a430…

MALICIOUS

PDF

70.6 KB Authoring application: ImageMagick
MD5: f940443b81a3de14763b1ee8bd6497e2 SHA-1: 0a605c29f912cd0efe37c003f856bf310e48c6a9 SHA-256: 2adb4232ca77a4305c905552b86af57c944c03510ec4367785a1b59b402a90f1
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious phishing content. The document body contains numerous external links to other PDF files hosted on various domains, suggesting a link farm or a method to distribute further malicious content. The primary attack pattern involves leveraging these links, likely to redirect users to phishing sites or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://www.loving-your-pets.com/uploads/1/3/0/2/130270823/1334221.pdf
    • http://shaunesinclair.com/uploads/1/3/0/5/130588490/4100052.pdf
    • http://philipflorio.club/uploads/1/3/0/4/130483680/wudawawikajerus_tolazenagaba_viwarise.pdf
    • http://www.ytotnc.com/uploads/1/3/0/5/130589228/ledamirejibal_wisug_zupezoja_zitisixofinoxuf.pdf
    • http://www.thegloow.be/uploads/1/3/0/6/130621191/rufopow-vefugig-xemosifuje.pdf
    • http://www.virtualpropertymgr.com/uploads/1/3/0/6/130604338/bujafakovuzokiker.pdf
    • http://textweight.com/uploads/1/3/0/7/130739875/76789503.pdf
    • http://cookingfunbyz.com/uploads/1/3/0/7/130775729/1fea2.pdf
    • http://checksymptom.com/uploads/1/3/0/2/130288338/zotibakalon.pdf
    • http://www.stout-mechanical-ok.com/uploads/1/3/0/3/130313064/nexup.pdf
    • http://asociacionperiodistaspr.org/uploads/1/3/0/5/130542964/2470865.pdf
    • http://www.salesreflection.com/uploads/1/3/0/5/130540714/daralo_liropizanekom.pdf
    • http://ys1jb.bpmtc.com/uploads/1/3/0/4/130435781/130435781.html#the+aeneid+literal+translation+book+4

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001f9e.bin
81366d9e341505a39c7e6ab0120c2249a446839b0698a654e40bb5378ce9da91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F9E 8752 bytes

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