Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e8925fd5c7c84a7…

MALICIOUS

PDF

46.7 KB Authoring application: PDFedit
MD5: 879a25ba06d5ab5d10a81d8145aa5788 SHA-1: 0ffb04e8effcd76ad1b8e66854cbbc83869b6a6f SHA-256: 7e8925fd5c7c84a787654079adad33e44da1495568fa811695e8bbf6788c986b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass of external links, many of which point to other PDF files, indicating a link farm designed to attract traffic or distribute further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. The presence of a visual download button further supports a lure-based attack pattern.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://gadanija.online/uploads/2020/01/28/donimo.pdf
    • https://ruvuriwi.weebly.com/uploads/1/3/0/5/130551095/250c04328d5ec.pdf
    • http://dmtransport.net/uploads/1/3/0/5/130543166/8967030.pdf
    • https://mimuwarelige.weebly.com/uploads/1/3/0/3/130323928/2338271.pdf
    • http://ksawave.com/uploads/2020/01/27/360ea8d75d73bc8.pdf
    • http://xase.schnapser.info/uploads/2020/01/29/retefuzufaf_xiwed_keruxozalures.pdf
    • http://xabawuno.tamadanataly.ru/uploads/2020/01/28/5284150.pdf
    • http://lozu.remont-info.com/uploads/2020/01/27/desubokagoluperedono.pdf
    • http://latoyaforever.net/uploads/1/3/0/4/130492038/1263296.pdf
    • http://mycreativecontributions.com/uploads/1/3/0/5/130545882/6237be398d79c.pdf
    • https://japepipam.weebly.com/uploads/1/3/0/5/130588352/baliripedus.pdf
    • http://guta.ascenseursocial.org/uploads/2020/01/28/dejikidivesuzow_kaneguka.pdf
    • http://dewebo.comtrans.info/uploads/2020/01/27/gusuruxezikupabapa.pdf
    • http://httpsite.info/uploads/2020/01/28/zijiliz_xanigetudejik_vuzudawej_dokumemojova.pdf
    • http://doxamete.volkovaelena.ru/uploads/2020/01/27/xonofu.pdf
    • http://amenitiesgalore.org/uploads/1/3/0/4/130435972/tusazaramepuzudejafi.pdf
    • http://spectrumherniaclinic.com/uploads/1/3/0/5/130590139/130590139.html#food+truck+sfgh

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015bb.bin
1893b71923e2a9fe3f0a9378a8ab191546a5920f879c9057db4f1e5ec3e6823e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15BB 11264 bytes

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