Malicious PDF — malware analysis report

Static analysis result for SHA-256 188f0d80a7b48ae9…

MALICIOUS

PDF

40.9 KB Authoring application: OpenOffice Draw
MD5: 9b6d818ea8c10bd8a6b8de05554ebd8c SHA-1: bafb862133a4e7d436c66b509c6f812dd188d18c SHA-256: 188f0d80a7b48ae9f926b8e0a960f6ca68308a1f788f8c816470a6194537cf04
152 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 websites, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or to distribute further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly support a malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://widcombecraftfair.com/uploads/1/3/0/6/130640105/9296413.pdf
    • http://nasahl.eu/uploads/1/3/0/6/130639318/4771096.pdf
    • http://howtogetasmallbusinessloan.net/uploads/1/3/0/6/130620424/kejozopu.pdf
    • http://colo-horse.com/uploads/1/3/0/7/130738752/ec80454cb.pdf
    • http://orrery.net/uploads/1/3/0/4/130476370/ff6936d49d7.pdf
    • http://pooglr.net/uploads/1/3/0/7/130775451/775f0c6a0c.pdf
    • http://stephappy.net/uploads/1/3/0/6/130640178/558be415a2b.pdf
    • http://fureverinyourheart.com/uploads/1/3/0/3/130324419/nugixobufumijiji.pdf
    • http://nfondy.net/uploads/1/3/0/6/130621477/a8fa6.pdf
    • http://hostmaster.vanessacollingridge.com/uploads/1/3/0/4/130490875/wibup.pdf
    • http://professionalmalevoiceoverservice.com/uploads/1/3/0/5/130588721/wavebodajuf-figibipe-lelenekevupok-bijanaridapeka.pdf
    • http://www.kittyspsychicinsight.com/uploads/1/3/0/6/130621856/mununu-revurejato-jemaz.pdf
    • http://invictustraidingacademy.com/uploads/1/3/0/5/130589360/pogevenurugodoj_tesedigoge_moxobog_jutapesawaj.pdf
    • http://elispinheirobellydance.com/uploads/1/3/0/6/130621212/78739e711d.pdf
    • http://sprivot.com/uploads/1/3/0/4/130476454/beluribofokeg-sonanibuju.pdf
    • http://urbanthreads.store/uploads/1/3/0/7/130775214/negugaza_xigisesike_buzitezodux.pdf
    • http://paper-mountains.com/uploads/1/3/0/5/130542866/vikerarijudoso.pdf
    • http://chitchatthisthat.com/uploads/1/3/0/5/130551267/5323596.pdf
    • http://www.jesseswarriors.com/uploads/1/3/0/6/130621868/f45876d2.pdf
    • http://dianajackson.com.au/uploads/1/3/0/6/130621874/5e7850.pdf
    • http://betterfreightbrokerage.com/uploads/1/3/0/8/130874269/1f0e5f.pdf
    • http://www.mexkiwiwedding.com/uploads/1/3/0/7/130776204/6481148.pdf
    • http://alexraco.org/uploads/1/3/0/6/130604006/xopavaruv.pdf
    • http://agdaturningtostone.com/uploads/1/3/0/2/130272493/2cc2f9a670.pdf
    • http://pinnb.slpny.com/uploads/1/3/0/5/130540293/130540293.html#adjektivdeklination+ohne+artikel+%C3%BCbungen+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000302d.bin
83d89f79375f7f339e88070a8779324ce221c94923bff415e388e162fbc46cfe
pdf-font-stream PDF embedded font (sfnt) at offset 0x302D 2604 bytes
font_01_sfnt_off00003bfd.bin
90eda21f20dfbfa7916ceb4a63933f9f77d6fa62ed444ca76e2a0332a8f6e15e
pdf-font-stream PDF embedded font (sfnt) at offset 0x3BFD 8340 bytes