Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f995b56e7dc864e…

MALICIOUS

PDF

44.4 KB Authoring application: OpenOffice Draw
MD5: 9829b394773443ab6edc115a2557f33e SHA-1: 8e7cad5b1f82843eee925b2e7e1d9d015e5153f3 SHA-256: 3f995b56e7dc864eebf6eb7947843af34069ad8a8361844f5e614bc08d0f525b
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for phishing or malware. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or distributing unwanted content. No scripts were extracted from this sample, limiting the ability to determine specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://flightobject.com/uploads/1/3/0/8/130874482/suvokopomoguvusal.pdf
    • http://theperformersmanifesto.com/uploads/1/3/0/7/130739591/jubipukawazizeji.pdf
    • http://mx.musicforyouth.net/uploads/1/3/0/2/130270747/vobepenalilod-mamebo-wosabubuvoveva-zorozowaxeko.pdf
    • http://arapaho-massage.com/uploads/1/3/0/4/130476557/6379835.pdf
    • http://mjacoby88.com/uploads/1/3/0/3/130313113/vimugamazarozitumabe.pdf
    • http://marcelswerissen.com/uploads/1/3/0/6/130639780/toxizinolixa_woruwa_badefebo.pdf
    • http://opensash.net/uploads/1/3/0/3/130323631/1233474.pdf
    • http://daytripper.net/uploads/1/3/0/6/130620428/dogumu.pdf
    • http://animalmatters.com.au/uploads/1/3/0/2/130288594/mizeramuvuvug.pdf
    • http://skinspiritlife.com/uploads/1/3/0/6/130639400/4013412.pdf
    • http://threedeetwodee.com/uploads/1/3/0/3/130379482/9373381.pdf
    • http://poetsandpriests.com/uploads/1/3/0/4/130489265/fagad.pdf
    • http://ascensioninvestmentproperties.com/uploads/1/3/0/6/130604641/1063492.pdf
    • http://www.lab215spitta.net/uploads/1/3/0/3/130324203/jadujuleruraso-fotevorovifirig-bakegakutonaw.pdf
    • http://hostmaster.createlkunstatelier.be/uploads/1/3/0/6/130603943/fizedodi_kanikiponim.pdf
    • http://www.nefaerieousdeeds.com/uploads/1/3/0/3/130313741/xoluzijutin.pdf
    • http://roadcraft-ds.com/uploads/1/3/0/4/130483527/pevivarez.pdf
    • http://ppsid.com/uploads/1/3/0/7/130776750/62c3fab.pdf
    • http://padlog.net/uploads/1/3/0/7/130775902/fopopugefimawet-dusigufavajix.pdf
    • http://somethingsomethingtheater.com/uploads/1/3/0/7/130739198/2006758.pdf
    • http://130president.com/uploads/1/3/0/3/130323311/4f8d2d.pdf
    • http://kingofprussiabc.com/uploads/1/3/0/3/130379121/zikeginagive.pdf
    • http://24millstillrd.com/uploads/1/3/0/2/130272557/9e6b573ba60054.pdf
    • http://x0807796xstreamtravel.xsideas.com/uploads/1/3/0/6/130621261/130621261.html#convert+batch+pdf+to+jpg+online
    • http://arapaho-massage.com/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046e2.bin
89a24465376c385146b556386ec507736d9e847a78c7921d66fafd86f7dc9e73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46E2 9500 bytes

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