Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2f1c7e78d958f47…

MALICIOUS

PDF

43.1 KB Authoring application: Poppler-utils
MD5: 870de071e177dd82f976d105999b4eb5 SHA-1: 7bbc2c69d5b89b901e75de75849a0e70dccb604c SHA-256: d2f1c7e78d958f47f080d2dd04a6cd206e4cdef0e6ae3eb8fb28e002ad749fa0
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF file contains a large number of embedded links to external PDF files, a technique commonly used for SEO poisoning or phishing campaigns. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted from this sample, and the document body was heavily obfuscated.

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://threeonabbott.com/uploads/1/3/0/2/130288762/xuwuzidozoxeju_wabumimoro.pdf
    • http://neisweets.com/uploads/1/3/0/6/130620267/116099.pdf
    • http://therapielaurentides.com/uploads/1/3/0/5/130590592/lanasavarojolo.pdf
    • http://4bodyandsole.com/uploads/1/3/0/7/130740066/lajadujul.pdf
    • http://richardalawrence.com/uploads/1/3/0/9/130968968/zetatubiduzobefukiz.pdf
    • http://anonymousmanifesto.com/uploads/1/3/0/4/130477039/nemave_forux.pdf
    • http://tlcworks.org/uploads/1/3/0/8/130813701/38baebe1bd5d.pdf
    • http://www.classicmotorcycle.com/uploads/1/3/0/7/130775282/6add3377f164d5.pdf
    • http://ways2life.com/uploads/1/3/0/3/130323538/dajafawa-jused-luxug.pdf
    • http://mpowered-living.com/uploads/1/3/0/8/130874485/2473883.pdf
    • http://nicole-bramble-illustration.com/uploads/1/3/0/4/130477252/femub_xoralik_lasen_kelapisodeli.pdf
    • http://mta-sts.mx.reunionyoga.com/uploads/1/3/0/7/130739584/xojeloxuburitinuxu.pdf
    • http://gq0j8.bpmtc.com/uploads/1/3/0/7/130739557/130739557.html#pleural+effusion+management+pediatrics

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004da2.bin
040d32f6ffcc713edfea2764ca8b1629bcb533673d25c55631b35542593ccbd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DA2 9328 bytes

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