Malicious PDF — malware analysis report

Static analysis result for SHA-256 a819cdd9d081195f…

MALICIOUS

PDF

30.9 KB Authoring application: Serif PagePlus
MD5: cc504e7ef7785bdb9b8064eb70dad3a4 SHA-1: ea067a0d6be0d5b012e3f14d09990da4bcafe979 SHA-256: a819cdd9d081195ff5a18abf4bc9c0c4e86b02a44aae4d32eac5b27604fa3110
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including ClamAV and an ML classifier, for malicious content. The PDF_SEO_LINK_FARM heuristic indicates a large number of embedded external links, with the primary one being http://sprinkledcompany.com/uploads/1/3/0/4/130435574/dalagi.pdf. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware delivery. The document body, though heavily obfuscated, contains references to the linked URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://sprinkledcompany.com/uploads/1/3/0/4/130435574/dalagi.pdf
    • https://rikewirakineror.weebly.com/uploads/1/3/0/4/130477351/95386.pdf
    • http://portlandhealthyprovisions.com/uploads/1/3/0/3/130312925/xalituvaditov-zumoti-vadajusug.pdf
    • http://azurbanluxury.com/uploads/1/3/0/4/130483236/0c6d5db9e.pdf
    • http://pamejabo.technolojix.com/uploads/2020/01/27/9f5b8.pdf
    • http://sisaju.bestperles01.fun/uploads/2020/01/27/jizolazuxu_bunapigane_paxepunim.pdf
    • http://gerrardphotography.com/uploads/1/3/0/4/130476101/polabagujewawejo.pdf
    • http://cardesign.su/uploads/2020/01/28/fa379546f8771.pdf
    • http://ajshealthandbeauty.com/uploads/1/3/0/3/130379386/355d08ed9e2.pdf
    • http://newreb.com/uploads/1/3/0/5/130543600/130543600.html#synthes+antegrade+femoral+nail+technique+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001239.bin
c6ee1a2c32201c6633ec3431fca0e10dbaed579bbdfc319cc3e4eb269baf056c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1239 7752 bytes

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