Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac461077b533ab13…

MALICIOUS

PDF

32.6 KB Authoring application: Serif PagePlus First seen: 2021-08-20
MD5: f95feae308d432ddb8a8241be7fe6d54 SHA-1: 657abe0de5abd7890ac64359e0576a473420c452 SHA-256: ac461077b533ab135f17fe48c5e211ea48d3bcf29a6d1d5ae899b1cb85ea520c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://rutase.trubdesign.com/uploads/2020/01/28/0cf4b6c382d0.pdf In PDF document text
    • http://jep.vivatvitanavse100.ru/uploads/2020/01/28/buwok_liwurejize_vapopara_tidonuzufi.pdfIn PDF document text
    • http://sivavenuno.evabot.online/uploads/2020/01/28/befelatirinujakanobi.pdfIn PDF document text
    • http://likofokike.e7ernall.pw/uploads/2020/01/28/bekuzof.pdfIn PDF document text
    • http://xunaseleda.everumgroup.com/uploads/2020/01/28/8628852.pdfIn PDF document text
    • http://novo-parfum.ru/uploads/2020/01/28/sutomutedadaso.pdfIn PDF document text
    • http://my-accountonline.net/uploads/2020/01/28/lozebewik.pdfIn PDF document text
    • http://flexbeat.pro/uploads/2020/01/27/zebabisu-zifebemajiwe-neriwowuzes-dulameliwe.pdfIn PDF document text
    • http://james-read.com/uploads/2020/01/28/2859700.pdfIn PDF document text
    • http://modafactory.ru/uploads/2020/01/27/veberufa.pdfIn PDF document text
    • http://vanezo.gotaserena.com/uploads/2020/01/28/ketobazirilawut-dexonadika-dibuxine-rakixakigovo.pdfIn PDF document text
    • http://vimemese.vipiski-besplatno23.icu/uploads/2020/01/28/15e921e9.pdfIn PDF document text
    • http://krokus-avto.ru/uploads/2020/01/27/zafazijilezoluzep.pdfIn PDF document text
    • http://fuponono.ksptambov.ru/uploads/2020/01/28/banosoginoruvuxedaxe.pdfIn PDF document text
    • https://varobefixuwatab.weebly.com/uploads/1/3/0/4/130435670/7005254.pdfIn PDF document text
    • http://nevixev.grupo-can.com/uploads/2020/01/28/javawavovov.pdfIn PDF document text
    • https://dedanizufedo.weebly.com/uploads/1/3/0/3/130313122/kofazuropowe.pdfIn PDF document text
    • http://gefup.pekam.su/uploads/2020/01/27/08071.pdfIn PDF document text
    • http://rosuvan.sanelylife.com/uploads/2020/01/28/9f55c61d84d6e.pdfIn PDF document text
    • https://ruzajufumetitat.weebly.com/uploads/1/3/0/3/130313495/juvukasuruxepaj.pdfIn PDF document text
    • http://buvaw.myshop18.site/uploads/80842602.html#ronnies+harley+davidson+parts+finderIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1552 6812 bytes
SHA-256: e490681f5bd51ee6ffca60ba47fa4594374a55469d814df68a3a978c3a4e5bfa