Malicious PDF — malware analysis report

Static analysis result for SHA-256 42073f3a96d68708…

MALICIOUS

PDF

35.4 KB Authoring application: Serif PagePlus
MD5: 0f213278bcd657b5118f708f58de43cc SHA-1: fa79bf215b3327800f2793f247ea577ef7b159d2 SHA-256: 42073f3a96d68708ca4c74ea4c2b7c36f32e3c185a649881aee240392e4f7705
150 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical PDF_SEO_LINK_FARM rule indicating a large number of external links. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports its malicious nature. The embedded URLs, such as http://atltid.com/uploads/1/3/0/5/130589312/zalegabokeg_pufon.pdf, are likely used to redirect users to phishing or malware-hosting sites. The document body content is heavily corrupted and does not provide further context.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://atltid.com/uploads/1/3/0/5/130589312/zalegabokeg_pufon.pdf
    • http://www.dbradshawonline.com/uploads/1/3/0/6/130621412/7037928599c870.pdf
    • http://hyowonwoo.com/uploads/1/3/0/4/130483937/kuragofotubuxud-xifin-wekebiseni-xufuvexopemedun.pdf
    • http://postmaster.the-pa.nl/uploads/1/3/0/7/130739729/c11986862c.pdf
    • http://oakridgestables.co.uk/uploads/1/3/0/5/130588272/5501974.pdf
    • http://onlyamom.com/uploads/1/3/0/7/130740440/vewafe_pobeti.pdf
    • http://northcricklodge.com/uploads/1/3/0/7/130738896/1262e314bdcab33.pdf
    • http://crockpotblvdllc.shop/uploads/1/3/0/6/130605240/8029843.pdf
    • http://valentinie.com/uploads/1/3/0/2/130289686/5906065.pdf
    • http://amiture2master.com/uploads/1/3/0/8/130873979/xudabidonatanogito.pdf
    • http://ancestreemusic.com/uploads/1/3/0/9/130969158/e6c575385ec.pdf
    • http://www.sensationevents.ca/uploads/1/3/0/6/130604046/737693.pdf
    • http://cdconggiaovietnamvic.org/uploads/1/3/0/5/130547689/dujevepekoru_gawobov.pdf
    • http://chikisima.com/uploads/1/3/0/5/130538839/9520529.pdf
    • http://mcmelegantehotelbeaumont.devsite-1.com/uploads/1/3/0/5/130551729/130551729.html#export+html+content+to+pdf+in+asp.net

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f06.bin
7e31a12e5ea3957e128885f859d8d5839e8219f767d0902da36ef60cea0e9d81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F06 8512 bytes

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