Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c9589da0de69aaf…

MALICIOUS

PDF

51.5 KB Authoring application: Serif PagePlus
MD5: 80eb40e929ef34d31d0c75e166e5ba2e SHA-1: a61d5e91e80d37733aa08b4aad55f409a28046f7 SHA-256: 5c9589da0de69aaf610047293e3e42fc77ade725fa44443c2f714726df5bc6c3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links to external PDF files, indicative of a link farm or phishing lure. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly suggest malicious intent. The document body, though partially corrupted, contains URLs that likely lead to the download of further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 https://temawonaribakiz.weebly.com/uploads/1/3/0/5/130540293/912146.pdf
    • http://wego.confidentbusinesssuport.com/uploads/2020/01/29/5846651.pdf
    • http://katiesopocidrake.com/uploads/1/3/0/6/130640232/xobobeb_jokixun_zekuxem.pdf
    • http://userboxes.ru/uploads/2020/01/28/nowewabujafexefizibi.pdf
    • http://revivemobiledevicerepair.com/uploads/1/3/0/6/130621985/1278041.pdf
    • http://moonandbackministries.com/uploads/1/3/0/5/130551249/fa1333.pdf
    • http://rebeccaewebber.com/uploads/1/3/0/5/130544386/taduv.pdf
    • https://xigozupeto.weebly.com/uploads/1/3/0/3/130379118/jovapu-lodetaw-wunawezamu.pdf
    • http://themusictheater.com/uploads/1/3/0/5/130541064/6377798.pdf
    • http://onlyoil.ru/uploads/2020/01/27/bogetuwijej-pifodux.pdf
    • https://jijaderufis.weebly.com/uploads/1/3/0/5/130539125/vidizexilibu.pdf
    • http://dsg-logistika.ru/uploads/2020/01/27/4639648.pdf
    • https://namasazamugex.weebly.com/uploads/1/3/0/6/130605124/7613535.pdf
    • http://re-ventum.com/uploads/1/3/0/6/130604805/3082104.pdf
    • http://lugerejex.juanpablomartos.com/uploads/2020/01/28/5037726.pdf
    • http://myholisticskinclinic.com/uploads/1/3/0/4/130476237/virowapizufumus-kerimuvebure-toketolonoxawe.pdf
    • http://puzzlescleaning.com/uploads/1/3/0/4/130476795/fb70c75dfcbd3.pdf
    • http://proximposicionamiento.com/uploads/2020/01/27/gadede.pdf
    • http://viv.strahovanie61.ru/uploads/2020/01/28/fepojupadilalifiju.pdf
    • http://myjeshop.com/uploads/1/3/0/2/130272511/8273008.pdf
    • http://jivezu.1-gc.biz/uploads/2020/01/28/7317846.pdf
    • http://shopoonline.com/uploads/2020/01/27/7372645.pdf
    • http://plumtreefloraldesign.com/uploads/1/3/0/6/130620391/2538069.pdf
    • http://5pointauto.com/uploads/1/3/0/4/130483978/130483978.html#spider+solitaire+mod+apk
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000016ac.bin
cde5521e1c597a8ffeeadfe3e9fc6343bce21445fa76470a38c0dcfe4fd342c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x16AC 8172 bytes
font_01_sfnt_off0000772f.bin
71c4e00f9bc3e1b04d78c9693b8169b9b0b35172f79be3d186838fcb68af214b
pdf-font-stream PDF embedded font (sfnt) at offset 0x772F 3328 bytes
font_02_sfnt_off00008220.bin
4812e88d5cb22f35f61c2e14505c131edbd712caab939f01bb412e512b912ad2
pdf-font-stream PDF embedded font (sfnt) at offset 0x8220 16128 bytes