Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3b34929c46a65a…

MALICIOUS

PDF

38.3 KB Authoring application: OpenOffice Draw
MD5: b84b23e2bc2456cbdc7a158894d74bde SHA-1: a160cc8bbf7c7be328f440ef198f03d841c5a3e1 SHA-256: 0e3b34929c46a65a2b88ed78ae0a386bb02986950401355f00710966dfd0c58b
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs, many of which point to other PDF files. This technique is often used for SEO link farming or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the sheer volume of outbound links suggests a coordinated effort to redirect users or manipulate search results.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://isfnrconf.org/uploads/1/3/0/6/130639745/wimosipesuwasok_vuvupenaj.pdf
    • http://ptamarymunfordelementaryschool.com/uploads/1/3/0/6/130639720/bodirunopuro.pdf
    • http://webdisk.noccassoc.org/uploads/1/3/0/4/130489696/zopuraxexafelidu.pdf
    • http://money4surveys.net/uploads/1/3/0/6/130620745/fudojegamozog.pdf
    • http://goodkarmabaskets.com/uploads/1/3/0/7/130776267/3569730.pdf
    • http://poseidonresearch.net/uploads/1/3/0/3/130379548/janot.pdf
    • http://www.kennedyjorgensen.com/uploads/1/3/0/7/130740195/5299829.pdf
    • http://atlasspaceandplace.com/uploads/1/3/0/6/130604539/vuzomebot.pdf
    • http://sterlingroofingandrepair.com/uploads/1/3/0/2/130288514/xomom.pdf
    • http://theloansigningexpert.net/uploads/1/3/0/7/130776113/1b72245.pdf
    • http://nerdfinance.net/uploads/1/3/0/4/130489465/2869070.pdf
    • http://simplicityaccountingllc.com/uploads/1/3/0/2/130272260/xevovisekaxixirip.pdf
    • http://topekayvc.org/uploads/1/3/0/6/130639310/5448273.pdf
    • http://movingforwardtogethertoday.com/uploads/1/3/0/4/130436298/2307825.pdf
    • http://abztesttag.com/uploads/1/3/0/4/130477448/xubixarabuked-gaxobugefuz.pdf
    • http://realfoodinitiatives.com/uploads/1/3/0/2/130271165/a28cff2bdae2251.pdf
    • http://chiropractorinscottsdale.com/uploads/1/3/0/3/130313221/5496927.pdf
    • http://web.hkcwd.com/uploads/1/3/0/5/130547576/majugajigatonedejuni.pdf
    • http://www.moneyforpropertydamage.com/uploads/1/3/0/6/130604690/ee9c7720.pdf
    • http://demonicbarbie.com/uploads/1/3/0/9/130969725/fevera-dufilow-texolozarezono.pdf
    • http://techlaunchers.com/uploads/1/3/0/5/130540767/6265420.pdf
    • http://travelbysharon.voyagerwebsites.com/uploads/1/3/0/6/130621317/130621317.html#modele+certificat+de+travail+2017+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033af.bin
08069d7cee1274f49930bfa93f7457385a4a413bbd7e4b5d02fa58c500bcaa34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33AF 9060 bytes

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