Malicious PDF — malware analysis report

Static analysis result for SHA-256 99d9c20578767ef4…

MALICIOUS

PDF

52.7 KB Authoring application: Adobe PDF Library 9.0
MD5: fd760201e1270fb24d6319ef9c943be3 SHA-1: 53f78bf470161ee0ee470d51a2acfe4c02982ea2 SHA-256: 99d9c20578767ef42213da99a2bf76ef16927a07f636faec316f3b23abf06230
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains, indicative of a link farm or redirection scheme. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly suggest malicious intent, likely phishing or traffic redirection. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact lure.

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://nanascountrystore.com/uploads/1/3/0/6/130604494/zugukovo.pdf
    • http://30upahead.com/uploads/1/3/0/5/130590208/mosidike.pdf
    • http://bluefinmiddletonma.com/uploads/1/3/0/6/130639300/nubude_javubawu_subamine.pdf
    • http://melaniegarunay.com/uploads/1/3/0/2/130289793/1b408f8210af1.pdf
    • http://dream-job.site/uploads/1/3/0/6/130621708/gojekuvozogobovolu.pdf
    • http://resurrectionoutdoors.com/uploads/1/3/0/5/130546977/dariwi.pdf
    • http://curerecords.net/uploads/1/3/0/6/130621182/dudajemitujejologil.pdf
    • http://calhouncountywaspsandflies.org/uploads/1/3/0/6/130621682/fda77be16a979.pdf
    • http://obrothersdetailing.com/uploads/1/3/0/5/130550858/fdcf5045d.pdf
    • http://oliveraconst.com/uploads/1/3/0/2/130287317/433316.pdf
    • http://ilovesmiley.net/uploads/1/3/0/3/130379769/1677787.pdf
    • http://nashvillefoodandfun.com/uploads/1/3/0/5/130552043/7770594.pdf
    • http://one21i.com/uploads/1/3/0/4/130476141/wimezidofi.pdf
    • http://theluckywood.com/uploads/1/3/0/4/130436482/jijim-rafunugizixi.pdf
    • http://scentedpens.com/uploads/1/3/0/6/130604637/mumanutiluvosi.pdf
    • http://appel-stores.shop/uploads/1/3/0/3/130313525/fuxuxiribe.pdf
    • http://ninaceledonio.com/uploads/1/3/0/3/130313632/c7742.pdf
    • http://galenetics.com/uploads/1/3/0/2/130289021/2512935.pdf
    • https://wikixajuv.weebly.com/uploads/1/3/0/5/130539881/c6cc54c1.pdf
    • http://thorntonheathcricket.co.uk/uploads/1/3/0/5/130589161/8e1d26566598.pdf
    • http://neverstripaflooragain.com/uploads/1/3/0/6/130639347/d8224f52f3c3.pdf
    • http://myownbank.co.uk/uploads/1/3/0/5/130541272/fijumovolaje-vojipavuvop.pdf
    • http://shoppivotalchocolates.com/uploads/1/3/0/2/130274322/tonel_jarexutupo_mewudi_mepabuxujibopox.pdf
    • http://mybestpets.weebly.com/uploads/1/3/0/6/130620972/2366898.pdf
    • http://5pointauto.com/uploads/1/3/0/6/130639998/130639998.html#nasa+rocketry+website

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001713.bin
a565e7259d75acdf55cbdd04e6062ee34255e66bdbe8c0517d90fd21098214ab
pdf-font-stream PDF embedded font (sfnt) at offset 0x1713 8680 bytes
font_01_sfnt_off000086d9.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d
pdf-font-stream PDF embedded font (sfnt) at offset 0x86D9 16204 bytes