Malicious PDF — malware analysis report

Static analysis result for SHA-256 be5119f6a0c2a946…

MALICIOUS

PDF

40.3 KB Authoring application: Soda PDF
MD5: 21269196db1bf29a8a5910745288e850 SHA-1: 11ea424ab7724c8d08f2b69414af452be719da4c SHA-256: be5119f6a0c2a9462e6e34f74d66b3316be175475b3d03941a7aa00159a7e0de
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted across numerous domains. This behavior is indicative of a link farm or redirection scheme, likely intended to lead users to malicious content or phishing pages. The ClamAV detection and ML classifier strongly support its malicious nature. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://wearebienchula.com/uploads/1/3/0/6/130605501/ce7e5bf3.pdf
    • http://kacigraceco.com/uploads/1/3/0/7/130775169/3586373.pdf
    • http://allabouthomerecording.com/uploads/1/3/0/5/130588345/rizusozijebifum.pdf
    • http://www.peachwaydelivery.com/uploads/1/3/0/9/130969923/lusurakofaki.pdf
    • http://ankabhi.org/uploads/1/3/0/7/130775651/xobuxefeten-zekewa-nifubeba-potaguxibotagog.pdf
    • http://kobeetech.com/uploads/1/3/0/4/130435850/biduw_golerikipubule_fobakumed.pdf
    • http://zoeandchelsea.com/uploads/1/3/0/3/130323566/subunawelebu.pdf
    • http://weiyiboxianshangyulecheng.f18.ebkf.org/uploads/1/3/0/2/130272432/5d41550.pdf
    • http://lulalovely.com/uploads/1/3/0/4/130483623/6922d14.pdf
    • http://love-in-the-afternoon.com/uploads/1/3/0/6/130621496/4072859.pdf
    • http://muskegonapostolic.net/uploads/1/3/0/7/130739593/movobu.pdf
    • http://objects-of-grace.com/uploads/1/3/0/6/130605430/kevitarikevalu-zemuw.pdf
    • http://miracostamun.com/uploads/1/3/0/2/130288439/5640813.pdf
    • http://wuchikungfu.org/uploads/1/3/0/3/130379341/gexesutoneximar_senelo_rodazifixofew_vumozidupiguba.pdf
    • http://wayneandbecca.com/uploads/1/3/0/7/130776349/3785155.pdf
    • http://newdreamrenovations.com/uploads/1/3/0/5/130590391/gobuzijobejuwe.pdf
    • http://mx.devonreed.com/uploads/1/3/0/6/130604497/mozekonobewof_vutatek_xonadewukuwidis.pdf
    • http://rainfordvillage.co.uk/uploads/1/3/0/3/130312983/salikatutofide-sobamixavememin.pdf
    • http://bokugroup.com/uploads/1/3/0/4/130483903/1ea04b987a18.pdf
    • http://www.lifecorporationlimited.com/uploads/1/3/0/5/130550817/mefofufomonu.pdf
    • http://pinecrestprintingstore.com/uploads/1/3/0/5/130551362/2658371.pdf
    • http://bhamorthopedicacupuncture.com/uploads/1/3/0/2/130272333/pomusupajarutag-jalubisifoluv-wikupususuve.pdf
    • http://129.bpmtc.com/uploads/1/3/0/5/130543995/130543995.html#odd+collective+nouns+for+groups+of+animals

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003bc6.bin
783d560c79cdb00ffc9e05f7baf3684d85794378e9c4fb6626e75d9c4e7ab262		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3BC6 7912 bytes

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