Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddbe5e1ac78dacd7…

MALICIOUS

PDF

29.4 KB Authoring application: PDFedit
MD5: e4de799f1dba311fb4dfdeaa61b8fe07 SHA-1: f0b59b60df95b1334a519efb096e46918eec7e1b SHA-256: ddbe5e1ac78dacd7f5dfcab451ef9b996be987f4bbd2a52be0dc23f98fb52ef0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or redirection scheme. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or SEO abuse. No scripts were extracted, so the primary attack vector appears to be the distribution of external links.

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://www.nesinteriordesignandconsultancy.com/uploads/1/3/0/8/130874520/piwubififi.pdf
    • http://mokilart.com/uploads/1/3/0/5/130588747/taxeburi.pdf
    • http://grupointerastar.com/uploads/1/3/0/5/130590710/5872092.pdf
    • http://moosemanormi.com/uploads/1/3/0/6/130604458/1428127.pdf
    • http://propertyjust4u.com/uploads/1/3/0/2/130289334/wamawenuga.pdf
    • http://iglesiacosechadedios.com/uploads/1/3/0/6/130621965/sukefuzepupilejut.pdf
    • http://opplevaustrheim.no/uploads/1/3/0/8/130814448/0a76d1179125.pdf
    • http://mta-sts.twintreescowboygear.com/uploads/1/3/0/7/130740480/3622687.pdf
    • http://rvrepairaustin.com/uploads/1/3/0/6/130639763/tezoxewewo_kimekowopinonu_lomawi.pdf
    • http://riverfallsbaseball.com/uploads/1/3/0/3/130313411/e28715b505.pdf
    • http://battlefortheearth.com/uploads/1/3/0/5/130545493/1693017.pdf
    • http://twinneedlejunction.com/uploads/1/3/0/6/130621867/2047368.pdf
    • http://coutureexperience.com/uploads/1/3/0/8/130874495/5773429.pdf
    • http://pesansusu.com/uploads/1/3/0/6/130605396/purorasew_zowufatidatot_wivorisevita.pdf
    • http://otherworldlyart.com/uploads/1/3/0/7/130738769/jezopabesas_vizewi_nuduw.pdf
    • http://www.5islandsfarm.com/uploads/1/3/0/4/130435659/makajobirokagubo.pdf
    • http://josephanspach.com/uploads/1/3/0/4/130488470/tojexunezizobaxa.pdf
    • http://dinejuneau.com/uploads/1/3/0/2/130271113/tawubapunawon-dogadisij-ruxurikede-nuvuvup.pdf
    • http://abundantlivingbytyrolea.com/uploads/1/3/0/6/130621874/ac3683a5bd.pdf
    • http://bunnystravel.com/uploads/1/3/0/2/130272847/1559472.pdf
    • http://www.missionleadershipabcs.com/uploads/1/3/0/2/130289365/0ce3c089a4649.pdf
    • http://kingswoodsquare.com.au/uploads/1/3/0/7/130776366/nibalitanam.pdf
    • http://sattler-wedding.rominastiebenphotography.com/uploads/1/3/0/6/130621191/130621191.html#pancreatic+cystic+lesion+follow+up+white+paper
    • http://www.missionleadershipabcs.com/uploads/1/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000168d.bin
fb7df132720c7e1808fb1636ad5cc1f4c297081712f242502297ed2db05f1e2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x168D 5796 bytes

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