Malicious PDF — malware analysis report

Static analysis result for SHA-256 d668422bfc0411e7…

MALICIOUS

PDF

41.7 KB Authoring application: Serif PagePlus
MD5: 98fb009fe34a5d942c889cc10f864cb1 SHA-1: 23af28b699da9d8cf7fa76136b8095d46d24843e SHA-256: d668422bfc0411e7efc509513fab219ff736d2abef25de8a9b07d9c47cf767ab
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to other PDF files 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' and 'ML_NYX_PDF_MALICIOUS' heuristics. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. No scripts were extracted from this sample.

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://albuquerquesunport.com/uploads/1/3/0/4/130476112/rosanesilo.pdf
    • http://myallscent.com/uploads/1/3/0/4/130483923/9393238.pdf
    • http://funeralministry.com/uploads/1/3/0/2/130272420/b49a56.pdf
    • http://massagebiarritz.fr/uploads/1/3/0/6/130621461/9218313.pdf
    • http://literaturepsychology.com/uploads/1/3/0/3/130313826/bimebezig.pdf
    • https://daxefuvarow.weebly.com/uploads/1/3/0/2/130291696/6954814.pdf
    • http://wmsportsreport.com/uploads/1/3/0/5/130542859/a0c55983.pdf
    • https://kuzexurovel.weebly.com/uploads/1/3/0/5/130543053/dudupenovirilula.pdf
    • http://bravemotorsport.com/uploads/1/3/0/4/130483202/1299781422.pdf
    • http://wexid.malka-cc.com/uploads/2020/01/28/nepupal_miluzewemu.pdf
    • https://kisegoduretojor.weebly.com/uploads/1/3/0/4/130435842/modemaj.pdf
    • http://delaneysalonscoppell.com/uploads/1/3/0/4/130483302/2590511.pdf
    • http://kraftsnkreations.com/uploads/1/3/0/4/130494871/df36ff4.pdf
    • http://mrsreinford.weebly.com/uploads/1/3/0/3/130379575/931842b.pdf
    • http://taliamariani.com/uploads/1/3/0/3/130323896/kizijerubobinumosexu.pdf
    • https://jemejagukop.weebly.com/uploads/1/3/0/5/130590265/f55e447b30e0f.pdf
    • http://torrezion.com/uploads/1/3/0/3/130323822/05e4fc44399fe4a.pdf
    • http://nichellejensen4orem.com/uploads/1/3/0/5/130588927/zinejote_pagewawojapego.pdf
    • http://lelovik.multilinglab.ru/uploads/2020/01/27/f643f55.pdf
    • http://rovir.doctsarev.ru/uploads/2020/01/27/7961282.pdf
    • http://apsolutionsllc.net/uploads/1/3/0/6/130621457/b44a7524c98c94.pdf
    • http://peterpetschenig.com/uploads/1/3/0/3/130323424/1791225.pdf
    • http://artemdeev.pro/uploads/1/3/0/4/130489434/gasojalep.pdf
    • http://coastalchurchmaine.com/uploads/1/3/0/6/130620579/dazusewejosume-vugelanonizo-xukumozerineg-nuwoko.pdf
    • https://likulebipex.weebly.com/uploads/1/3/0/4/130435905/woviwixuvirafak-xotekarevirusup-jarupegutoz-vulavebejeben.pdf
    • http://nationalriskmanagementgroup.com/uploads/1/3/0/3/130379398/130379398.html#hell+baby+imdb+parents+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000018ee.bin
ead64bd6448c61ef03368b8287096d4e63d3931555b1de6d0cfbbfd7373b2e72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18EE 8232 bytes

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