Malicious PDF — malware analysis report

Static analysis result for SHA-256 64ff806d14d5ccf2…

MALICIOUS

PDF

57.0 KB Authoring application: LibreOffice
MD5: 20a4a9aef7c4c3d7f63d2f570bf9f560 SHA-1: 31d76d2666a67206173e727c1b99674215a25a4a SHA-256: 64ff806d14d5ccf20c15f507935cb4462d2c46cf4297ad2a8e390cf5a043c8ac
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm, which is a common technique for distributing malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the primary attack pattern involves directing users to external malicious PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://sng1product.world/uploads/1/3/0/4/130491179/1272239.pdf
    • http://caphilloween.org/uploads/1/3/0/5/130546606/87bfc38af.pdf
    • http://increasingfaith.net/uploads/1/3/0/7/130775792/7028130.pdf
    • http://libbydodd.com/uploads/1/3/0/4/130488935/3239a9dc1.pdf
    • http://sdvarietyoutlet.com/uploads/1/3/0/4/130488396/57b3410595.pdf
    • http://www.sonicvibrationtherapy.com/uploads/1/3/0/3/130379305/8450043.pdf
    • http://18390621srn.com/uploads/1/3/0/8/130814993/vipikegobujajuz.pdf
    • http://sleepoutlouies.com/uploads/1/3/0/6/130620934/dowexi.pdf
    • http://stmichealshealthcare.com/uploads/1/3/0/5/130590203/xonedapeji-zanisarizoti-xazutoxuwefiv.pdf
    • http://sstvipgroup.com/uploads/1/3/0/4/130489044/7638192.pdf
    • http://www.lambaborgdesigns.com/uploads/1/3/0/6/130639479/7c5b07e26018.pdf
    • http://vonstellershepherds.com/uploads/1/3/0/8/130874380/ruwaduze.pdf
    • http://pixelparty.pics/uploads/1/3/0/5/130588393/6495083.pdf
    • http://www.lindal.me/uploads/1/3/0/7/130738823/6fbe94317dfa.pdf
    • http://epoxynoco.com/uploads/1/3/0/5/130590351/3ecd31304ca.pdf
    • http://kitchenandcraftcatering.com/uploads/1/3/0/3/130312953/remaduxexebeni_juwitaledozebob_pogutatilewokop_mizojirujimujan.pdf
    • http://aletothechief.com/uploads/1/3/0/2/130288720/38233.pdf
    • http://raviniacounseling.com/uploads/1/3/0/8/130813526/mofipib-loveninixiza.pdf
    • http://www.madaboutmeg.com/uploads/1/3/0/6/130604924/gupowotirezipije.pdf
    • http://spiritjooga.com/uploads/1/3/0/6/130605482/gonuwituso_wipegitoxud.pdf
    • http://spaatthecolonnade.net/uploads/1/3/0/4/130488885/5056885.pdf
    • http://odontologiaparapets.com/uploads/1/3/0/6/130621000/lefire_xiluniliwetanif_xuxajubaxipexi.pdf
    • http://bakerskidscrafts.com/uploads/1/3/0/5/130550775/ff38c84a18a364.pdf
    • http://74-123-79-100.mgwnet.com/uploads/1/3/0/4/130483429/9320079.pdf
    • http://hostmaster.artdecogifts.com/uploads/1/3/0/8/130874011/a8756e5225b0.pdf
    • http://zhucesongcaijinwangzhi.br3h.com/uploads/1/3/0/4/130476332/130476332.html#free+pdf+to+ms+word+converter+download+full+version

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000158f.bin
780c93641f5314f7f2569c6965691db4a5795b337d6f7d96c3e94c9ae9b21e89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x158F 8156 bytes

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