Malicious PDF — malware analysis report

Static analysis result for SHA-256 578dc10531456882…

MALICIOUS

PDF

54.0 KB Authoring application: PDF Studio
MD5: cc422b1ea945248c61851471227949c8 SHA-1: 357b21999ef4c5dd4349188b08b5269ccb2f8099 SHA-256: 578dc10531456882ee57bdb06379c93abfaf0de0d8b5d74bd68d4878590a431f
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection also flags this as a phishing-related PDF. The document body contains fragmented text and URLs, suggesting a lure to click on these links. The primary attack pattern appears to be a link farm designed to redirect users to potentially malicious content.

Heuristics 4

  • 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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://miw.sportintour.ru/uploads/2020/01/29/7011607.pdf
    • http://shenyuanfan.com/uploads/1/3/0/4/130476317/36df3a1ee8.pdf
    • http://americanasdobrasil.com/uploads/2020/01/28/pitavafexapejipip.pdf
    • http://syriabay.com/uploads/2020/01/28/wiwad.pdf
    • http://cahindia.com/uploads/1/3/0/6/130639636/bifalo-rizazigetoxipev-lizagid-votamos.pdf
    • http://yogamamacb.com/uploads/1/3/0/6/130621401/xogavexesakufuvupi.pdf
    • http://mountainafrica.co.za/uploads/1/3/0/2/130291352/takofuxex_sukek.pdf
    • http://bestsellersdeal.nl/uploads/1/3/0/6/130605259/797d20.pdf
    • http://people.co.nz/uploads/1/3/0/6/130621698/tujaben.pdf
    • http://millseaton.com.au/uploads/1/3/0/4/130488483/a8329ab.pdf
    • http://neotrainehr.com/uploads/1/3/0/2/130270867/5d7cc293.pdf
    • http://theradicallygood.com/uploads/1/3/0/3/130379067/2196989.pdf
    • http://nrgsupply.ie/uploads/1/3/0/6/130639959/kugiwutamogumemejusi.pdf
    • http://nhan-tien-quoc-te-vn.online/uploads/1/3/0/4/130483153/3978895.pdf
    • http://benfrankk.com/uploads/1/3/0/4/130477414/gukotige-ranoneb-tupinogoj.pdf
    • http://triumphbikerentals.com/uploads/1/3/0/2/130274304/zomujuramak-kemogevowu-gaxovezoxik-zotenobelo.pdf
    • http://prgwellness.com/uploads/1/3/0/6/130639571/jufeluval.pdf
    • http://comalcommunityband.net/uploads/1/3/0/5/130550813/4946821.pdf
    • http://oeufrier.ca/uploads/1/3/0/6/130604529/6024353.pdf
    • http://nexoclean.com/uploads/1/3/0/5/130539235/2982248.pdf
    • http://aarstudiomasters.com/uploads/1/3/0/5/130588718/672d5793f6.pdf
    • http://101taiwantour.com/uploads/1/3/0/5/130545421/rudatatoxe.pdf
    • http://policetrailer.com/uploads/1/3/0/5/130588492/130588492.html#translate+english+to+portuguese+app

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001877.bin
1857fa5216f776944eb6ff777daf5f98e73980106e7b98797eea5147719c5f0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1877 9324 bytes
font_01_sfnt_off00008d08.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D08 16036 bytes

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