Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2a668d019d7cf1e…

MALICIOUS

PDF

44.2 KB Authoring application: Serif PagePlus
MD5: 375bf32a190aef7ffdaa50c730d7733f SHA-1: 61828d3f119ea9233609cf72bc7e22f96eeafc80 SHA-256: d2a668d019d7cf1ea72f27abf7998f4e37406730a9189923deaa9c302d6e40fc
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files hosted on various domains, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to medical conditions, which could be a lure.

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://milissweetstogo.com/uploads/1/3/0/7/130740062/zesadonigajegu.pdf
    • http://newdawnbirthdoula.com/uploads/1/3/0/4/130436354/soduneferijin.pdf
    • http://purebarretexasstrong.com/uploads/1/3/0/3/130313253/modigune_bovabezo_jeditutezi.pdf
    • http://digidef.com/uploads/1/3/0/7/130740195/9a2189d3df7.pdf
    • http://nyspace.org/uploads/1/3/0/5/130590373/1967321.pdf
    • http://thesupporthelp247.com/uploads/1/3/0/7/130740536/viximovulenidanipa.pdf
    • http://teratype.net/uploads/1/3/0/2/130272482/1872232.pdf
    • http://focinet.com/uploads/1/3/0/5/130588795/8579026.pdf
    • http://fretbuzz.com/uploads/1/3/0/3/130323164/mamedapome.pdf
    • http://mykayscreations.com/uploads/1/3/0/6/130603807/gowigetexusata.pdf
    • http://admin.harzmann.digital/uploads/1/3/0/7/130739952/nolavor-kubepuzaja-jipiwenefaga.pdf
    • http://acehomecareservicewherewe.com/uploads/1/3/0/6/130620677/sijawine.pdf
    • http://reklam5.net/uploads/1/3/0/6/130639956/gituzizu_buteg.pdf
    • http://ark47.com/uploads/1/3/0/5/130539354/bokibesabadaxisuwuv.pdf
    • http://mindfactek.org/uploads/1/3/0/5/130590682/9edb8ab419b42.pdf
    • http://mrncrdbl.com/uploads/1/3/0/7/130776521/xokavuwal.pdf
    • http://kcfearfarm.com/uploads/1/3/0/5/130545698/94fa3e54bce176.pdf
    • http://crossroads-studio.net/uploads/1/3/0/4/130491932/d29ebad0dae22f6.pdf
    • http://croninsformwork.com/uploads/1/3/0/7/130739713/wanaxomakozil_lebepe_noxuwibudedet_vowodazede.pdf
    • http://gameosphere.com/uploads/1/3/0/6/130620847/neweto.pdf
    • http://77yhi.bpmtc.com/uploads/1/3/0/3/130323405/130323405.html#causes+of+abdominal+swelling+in+neonates

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004226.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4226 2616 bytes
font_01_sfnt_off00004daa.bin
1dcd432b1b500be081d2d71cbbc2953600847dfa436d5745250b57ebaa03d948		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DAA 7844 bytes

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