Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a6eede8b61f5600…

MALICIOUS

PDF

48.0 KB Authoring application: Adobe PDF Library 9.0 First seen: 2020-09-24
MD5: 6fa1e921ec0ee2efc49babed80970570 SHA-1: 5b7446461936823b4b802c9847c157b39314b75b SHA-256: 2a6eede8b61f5600ab2aff100478dcae05c754964718adaf08cd75f776c875d5
172 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and a large number of external links, indicative of a phishing or malware distribution scheme. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this assessment. The embedded JavaScript likely facilitates the redirection or download of malicious content from the linked URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://tasetiruxu.pansionatmsk.ru/uploads/2020/01/28/bimoxapiferose-kowogokivo-nopofilidugenip.pdf In PDF document text
    • http://bunufep.maturitas.ru/uploads/2020/01/27/norafeludige_sukekupijebinif_dimisegarud.pdfIn PDF document text
    • http://field-tek.com/uploads/1/3/0/5/130551087/vobiluk_bofajufube_pajobotuwi.pdfIn PDF document text
    • https://nuvalifajuvef.weebly.com/uploads/1/3/0/5/130589386/gisugunalaxigarironu.pdfIn PDF document text
    • http://bswheadworks.com/uploads/1/3/0/3/130324207/julemajifan.pdfIn PDF document text
    • http://zaf.epiad.com/uploads/2020/01/28/rejezibipupu.pdfIn PDF document text
    • http://barrygjohnsonsr.com/uploads/1/3/0/2/130291328/figogi_dozodap.pdfIn PDF document text
    • http://sasepawip.candidaturaomarmolina.com/uploads/2020/01/28/vifakobodefal.pdfIn PDF document text
    • http://hydeconsulting.co/uploads/1/3/0/6/130603807/pevifud-vofolijavobel-pibemonivaj.pdfIn PDF document text
    • http://xinowoveb.zayavka-na-kredit.com/uploads/2020/01/27/52892822430.pdfIn PDF document text
    • http://mylighthouselearning.com/uploads/1/3/0/6/130621205/limiwogitejoxikapo.pdfIn PDF document text
    • http://fairedfundingny.org/uploads/1/3/0/3/130313150/vexopis.pdfIn PDF document text
    • http://longhorncaverns.net/uploads/1/3/0/5/130550925/zekobebuxokogo_nipat.pdfIn PDF document text
    • http://sauerlandhypotheek.nl/uploads/1/3/0/2/130274032/130274032.html#snm+guidelines+hemangiomaIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1425 8256 bytes
SHA-256: ea4ad204bc5fd73c8b123e147ab1fb211a52e955a103922e03199ade74632e3b
font_01_sfnt_off0000753e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753E 16068 bytes
SHA-256: 6db2f878e0fd57d3a351d0d81a5ccd7b58f68df6728dadc3aee3ebeb1a1d6e60