Malicious PDF — malware analysis report

Static analysis result for SHA-256 7740923c688176f2…

MALICIOUS

PDF

41.6 KB Authoring application: OpenOffice.org
MD5: 54adfa454100469cf771a2e5fe7b89e9 SHA-1: b333a6a4989308aaff23ae002f98279158849423 SHA-256: 7740923c688176f2b96dafca810534dc70c410dbd5475f36f9e6c4eb490e03e6
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the nature of the embedded URLs suggests a mechanism for delivering secondary payloads or redirecting users to malicious sites.

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://chrisreidstudio.net/uploads/1/3/0/6/130605432/e9b929651.pdf
    • http://worddinvestmentsinc.com/uploads/1/3/0/5/130539783/5213786.pdf
    • http://kijuta.espace-clientsv3-0range.com/uploads/2020/01/28/5671139.pdf
    • http://technolojix.com/uploads/2020/01/29/7846469b183.pdf
    • https://wagixetibe.weebly.com/uploads/1/3/0/3/130379466/3826ba593ae16.pdf
    • https://vekuwixikapip.weebly.com/uploads/1/3/0/4/130488442/nidesevoga_sitemifafavum_lirojukituvu_zelaliwoxudukix.pdf
    • http://wox.goods-trends.top/uploads/2020/01/28/f0e7ae.pdf
    • http://pedokivet.blog-sovetov.ru/uploads/2020/01/27/mamibesumewif.pdf
    • https://fokeronapafij.weebly.com/uploads/1/3/0/4/130477394/2134606.pdf
    • https://vezoseban.weebly.com/uploads/1/3/0/5/130541285/bimoku.pdf
    • http://xop.defki.icu/uploads/2020/01/27/4f2f4b906a6.pdf
    • http://lookingatplants.com/uploads/1/3/0/4/130483397/legas-voxorakor.pdf
    • http://tumi.danielfache.com/uploads/2020/01/29/06837132.pdf
    • http://gisen.sticken.tech/uploads/2020/01/28/zefiraduxitojoj-musapunisar.pdf
    • https://rajigofajut.weebly.com/uploads/1/3/0/5/130539188/xifedurelalepi-wuxodovaja-mabonime-lefakeja.pdf
    • http://lawivik.bimbasket.ru/uploads/2020/01/28/voliboduxixosow.pdf
    • http://segibozebe.eliadore.com/uploads/2020/01/27/6671136.pdf
    • http://humannaturefoundation.com/uploads/1/3/0/5/130550742/130550742.html#bar+graph+template+powerpoint+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014dd.bin
a0603f208da3f2bea537f0c5a47647b5a2752465dd1d2c81f8359e8d0c12a4a6
pdf-font-stream PDF embedded font (sfnt) at offset 0x14DD 7524 bytes