Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a32c807aca70995…

MALICIOUS

PDF

37.1 KB Authoring application: PDFBox
MD5: ee4fb4e81b1e3e86aef067466500be37 SHA-1: cbf3ab8908fa508e81217a5705826a333f08c370 SHA-256: 1a32c807aca709958048c386dc49c9863958999aa06750dd082cb2d89b9d9b48
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or phishing campaign designed to drive traffic or distribute further malicious content. The ML classifier and ClamAV detection strongly support the malicious nature of this file. No scripts were extracted from this sample.

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://worldnouns.com/uploads/1/3/0/2/130289158/95e8454e51bb653.pdf
    • http://midwestlightingllc.com/uploads/1/3/0/2/130273573/litikuselogud.pdf
    • http://dltpress.com/uploads/1/3/0/6/130639357/2879570.pdf
    • http://barrysatvadventures.com/uploads/1/3/0/2/130272478/xidit_bazotaz_rofenaxalebunux.pdf
    • http://cheyannesdream.com/uploads/1/3/0/8/130874324/2566963.pdf
    • http://mrsrenohasclass.com/uploads/1/3/0/8/130813997/puzobogugoparesukob.pdf
    • http://moneyforpropertydamage.com/uploads/1/3/0/6/130603763/6194e8d4cc3bcf8.pdf
    • http://owensindustrialservices.net/uploads/1/3/0/2/130272102/87bae215cc7.pdf
    • http://jazzyslimesuk.com/uploads/1/3/0/6/130620996/zuxiturog-lonepisoxanipok.pdf
    • http://juliancert.com/uploads/1/3/0/7/130776026/be220ec16f.pdf
    • http://mytexasdwilawyers.com/uploads/1/3/0/7/130775722/6124496.pdf
    • http://privacydoctrine.net/uploads/1/3/0/7/130738567/1d961eec.pdf
    • http://www.laiamonico.com/uploads/1/3/0/5/130588727/nirubapu-palomavavegoj-kifibipobo.pdf
    • http://beatzbylex.com/uploads/1/3/0/6/130604501/pojomubaweb.pdf
    • http://moniquesdreamsounds.com/uploads/1/3/0/4/130435717/nimebezemigudegijev.pdf
    • http://arcanagame.com/uploads/1/3/0/2/130289749/1b5747075.pdf
    • http://senioreducationresource.com/uploads/1/3/0/5/130551756/wifosodebuzo.pdf
    • http://steelhomedesigns.com/uploads/1/3/0/6/130604563/busujaturikavo.pdf
    • http://4spn.com/uploads/1/3/0/6/130639575/koxirufixewi_jijoposelukugit_xosemaruxe_wutewawagoj.pdf
    • http://thereviewuk.com/uploads/1/3/0/7/130776263/rodepobado_zezewip_sowagiz_xekawogafivukiv.pdf
    • http://www.officiallyshel.com/uploads/1/3/0/3/130313091/rofas-vijag-vuruxujizu-guwiz.pdf
    • http://prk0m.bpmtc.com/uploads/1/3/0/6/130639404/130639404.html#ddl+commands+in+sql+with+syntax+and+examples
    • http://privacydoctrine.net/uploads/1/3/0/7/1

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030bb.bin
5b72bdca9d4f2d914918acc5e1e677a4937ec06e02d100eb0479c61f39dcacca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30BB 7748 bytes

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