Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8bcc3c7f2ffc29a…

MALICIOUS

PDF

42.2 KB Authoring application: PDF Studio
MD5: 07cce5cb023a4ababbb83f1ff49cc09a SHA-1: 010beadc51743299b49d3922ed87f06494da38f1 SHA-256: c8bcc3c7f2ffc29ad54bd8aaa2daf856b4cb094462e9c55b2feb3cb155a94ee3
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external websites, a technique commonly used for phishing or distributing further malware. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, indicating a malicious intent to redirect users. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports the phishing classification. No scripts were extracted, but the document body's deceptive title 'Kenner action toy guide' is used to lure victims.

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://northbeavercontracting.net/uploads/1/3/0/5/130540128/25bd400b1178.pdf
    • http://nataliemangalindandesign.com/uploads/1/3/0/3/130313529/1244c52.pdf
    • http://nordcel.com/uploads/1/3/0/3/130323290/dexesobapaleles-buzuluw-donetuke-ziduluwol.pdf
    • http://stephenwilland.com/uploads/1/3/0/5/130550848/6307467.pdf
    • http://fultonelementarypta.org/uploads/1/3/0/4/130490875/2a006371.pdf
    • http://carolichica.com/uploads/1/3/0/6/130620662/lewatowuni.pdf
    • http://asociacionperiodistaspr.org/uploads/1/3/0/5/130543771/130543771.html#kenner+action+toy+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010ee.bin
9c50d596347f1c09334d639786220acda2b4152ab610a35bcc0de1d9fb1a0abf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE 8492 bytes

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