Malicious PDF — malware analysis report

Static analysis result for SHA-256 c32e307f837716da…

MALICIOUS

PDF

45.4 KB Authoring application: Adobe PDF Library 9.0 First seen: 2020-09-24
MD5: 2ed9172d56f862235e521ca223ee143a SHA-1: 01b20a7b549181e88f3dba5c212bf201ce933ab5 SHA-256: c32e307f837716dad67624ab1f28cc4e507d4409bab140cabb9d78f67dc6a508
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a link farm and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The embedded URLs and the PDF structure strongly suggest a phishing or malware distribution campaign. The document body content is largely unreadable, but the presence of numerous external links points to a malicious intent to redirect users to potentially harmful sites.

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://tawo.segundamorada.com/uploads/2020/01/28/rusisenod.pdf In PDF document text
    • http://bilety-v-kreml.ru/uploads/2020/01/28/xugamexakuwalov.pdfIn PDF document text
    • http://fovowakal.kuhni-msc04.icu/uploads/2020/01/28/9c4e96d9.pdfIn PDF document text
    • https://fakikologij.weebly.com/uploads/1/3/0/2/130287852/353751.pdfIn PDF document text
    • http://xafu.speacetech.us/uploads/2020/01/27/4d446a88626d0da.pdfIn PDF document text
    • http://tezifiji.indmovieonline.club/uploads/2020/01/28/radakilitusabowimus.pdfIn PDF document text
    • http://thesoundmandxb.com/uploads/1/3/0/5/130551880/7c15a549fd780e9.pdfIn PDF document text
    • http://barbaraadlerlmft.com/uploads/1/3/0/6/130621746/3172069.pdfIn PDF document text
    • http://weddingsinseychelles.com/uploads/1/3/0/6/130621715/3098780.pdfIn PDF document text
    • https://towelimiga.weebly.com/uploads/1/3/0/4/130435826/wiruka.pdfIn PDF document text
    • http://tapixal.easternbusinessdistrict.online/uploads/2020/01/29/kikofejoniviza.pdfIn PDF document text
    • http://bejustalittlebetter.com/uploads/1/3/0/6/130605292/130605292.html#achatina+achatina+care+sheetIn 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_off000012ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FF 8684 bytes
SHA-256: 63e01b394d99896fb692c571d4555c69dfad209d5d59806caeb3257b875c06f6
font_01_sfnt_off000063e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E2 18488 bytes
SHA-256: 6f688474ef070862f77c4f8a4890f671d0e0cdd08c28097def4207f68d0210d1

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