Malicious PDF — malware analysis report

Static analysis result for SHA-256 c737e1f27b0418e2…

MALICIOUS

PDF

30.3 KB Authoring application: OpenOffice.org First seen: 2020-09-24
MD5: 6b96fdea10dd175af88b4ff5f1124adb SHA-1: 350c7d19cfd454ad2e7a95f41afe4cc7af01ea46 SHA-256: c737e1f27b0418e2b376909304c122c08608eabce1d7c0108eaf6db5af00d28a
152 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The embedded URLs are likely used to redirect users to malicious sites or download further payloads.

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://ajautosalesva.com/uploads/1/3/0/2/130270793/373547.pdf In PDF document text
    • http://wemodiv.rcway.ru/uploads/2020/01/28/gavorokenubep.pdfIn PDF document text
    • https://weliwonilubo.weebly.com/uploads/1/3/0/3/130323156/doxonebigofusegavip.pdfIn PDF document text
    • http://veju.agronomexpert.ru/uploads/2020/01/28/zilexe.pdfIn PDF document text
    • http://butimusedi.cardesign.su/uploads/2020/01/27/tevujunoleva.pdfIn PDF document text
    • https://donudunuwi.weebly.com/uploads/1/3/0/4/130435518/7657015.pdfIn PDF document text
    • http://mgichohi.com/uploads/1/3/0/4/130491356/kiguzew.pdfIn PDF document text
    • http://masazet.remstroi-metal.ru/uploads/2020/01/28/fujituzotumudiziseku.pdfIn PDF document text
    • http://mindguru.pro/uploads/2020/01/29/3230371.pdfIn PDF document text
    • http://vam.infospina.ru/uploads/2020/01/27/dikola.pdfIn PDF document text
    • http://vuzevawila.buyfiesta.ru/uploads/2020/01/28/b20194ecbf.pdfIn PDF document text
    • http://nunor.tht-premiere.online/uploads/2020/01/28/lorowabokedevaj_zesimaba_vozolumuve_fuzebel.pdfIn PDF document text
    • http://theharwichclipper.com/uploads/1/3/0/6/130621031/kemoviwaleraw-nexiviferivadun-zanunamaxiti-xipunoj.pdfIn PDF document text
    • http://sellercentral-amazon-avs.com/uploads/2020/01/27/1492171.pdfIn PDF document text
    • http://zumi.toutusage.com/uploads/2020/01/29/92fd0734.pdfIn PDF document text
    • http://alanjbesquin.com/uploads/1/3/0/6/130605065/130605065.html#jotun+stucco+data+sheetIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000136f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136F 6840 bytes
SHA-256: abf0acc5a7c38d332c3d44cafad92fd08b5fcec4e0b8ca53d7db278d1c4140c9