Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6dfec1660e3294f…

MALICIOUS

PDF

42.9 KB Authoring application: LibreOffice Draw
MD5: 78c4383c779008e9b55d2c4c0ab4d5d1 SHA-1: 45447f35fdcd5e5e90f20bec142bf15c565713b9 SHA-256: f6dfec1660e3294f14ed3fe5ef62443dbe4f3ef0a06a6af5f3e80caab81bf11a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection also flags it as phishing-related. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery or execution methods.

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://generosity.website/uploads/1/3/0/4/130488332/napik_zejej.pdf
    • http://stonebrookemanagement.com/uploads/1/3/0/3/130323531/3355581.pdf
    • http://mooreinnovation.org/uploads/1/3/0/4/130476014/wovusesumo.pdf
    • http://hallelujahcommunitychurch.com/uploads/1/3/0/5/130588513/keked.pdf
    • http://uconnpremedicalsocietynewsletter.com/uploads/1/3/0/2/130271154/panizil.pdf
    • http://gabrielhiggins.com/uploads/1/3/0/2/130289745/gexopobewiw.pdf
    • http://wellnesswithmandy.org/uploads/1/3/0/6/130603941/lamal.pdf
    • http://salonshibumi.com/uploads/1/3/0/4/130490609/revarusoxabebupa.pdf
    • http://borough18mc.com/uploads/1/3/0/6/130620437/sosajomale_vojuker_vufipabeburimef_fogodoxirat.pdf
    • http://whaleheadoceanfront.com/uploads/1/3/0/4/130489023/rukatezoxemara.pdf
    • http://toolgratis.com/uploads/1/3/0/4/130483981/kabevuwu.pdf
    • http://commonblock.com/uploads/1/3/0/2/130289636/dizogef_madatibatux_nobamolafumo_pagumofiwut.pdf
    • http://giantsizedannual.com/uploads/1/3/0/6/130604433/wazutojifevoza_sulune_jipaxam_difen.pdf
    • http://webmail.jennifermannauthor.com/uploads/1/3/0/4/130488498/130488498.html#obligationenrecht+schweiz+admin+pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004416.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4416 2652 bytes
font_01_sfnt_off00004fda.bin
c0d5ccaa49b41ef78ff5c2ea29851a4496e784038cda6ce253759c556584f994		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FDA 7884 bytes

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