Malicious PDF — malware analysis report

Static analysis result for SHA-256 a81f9cad332572bc…

MALICIOUS

PDF

37.3 KB Authoring application: pdf-parser
MD5: 22c763092ddbbc04c77b6e0201334750 SHA-1: 9e391faa2e2f67002420a6396dfe542d0911b284 SHA-256: a81f9cad332572bc3a67ca4f1ee8d18b3a3d0fad1888b106a826c2944a137c25
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This technique is commonly used for SEO poisoning or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or malware delivery scheme.

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://cameliascandles.com/uploads/1/3/0/4/130436007/434a1fbda43a.pdf
    • http://kindredcleanouts.com/uploads/1/3/0/6/130603847/jurukur_figazulifo_tojufitasa.pdf
    • http://novateckfloor.com/uploads/1/3/0/8/130874410/680f1627eb4e6db.pdf
    • http://hucklebean.com/uploads/1/3/0/7/130776269/gujoxipikedevero.pdf
    • http://footcentersofnorthcarolina.com/uploads/1/3/0/6/130620642/3963649.pdf
    • http://oliverapps.net/uploads/1/3/0/3/130323996/e74f2e6.pdf
    • http://www.fusionfitcouple.com/uploads/1/3/0/5/130539840/b9d092ae60d.pdf
    • http://isocare.org/uploads/1/3/0/6/130605016/9537645.pdf
    • http://www.millionmegalopolis.com/uploads/1/3/0/2/130273801/7593687.pdf
    • http://reliableappliancerepair.info/uploads/1/3/0/5/130588490/8867927.pdf
    • http://mlcvideos.com/uploads/1/3/0/9/130969916/1448961.pdf
    • http://sessionninephotography.com/uploads/1/3/0/6/130620207/lefowurakozogevajuz.pdf
    • http://autodiscover.ckmcduffyconstruction.com/uploads/1/3/0/4/130483587/a91d5.pdf
    • http://thefootballbettingpredictor.com/uploads/1/3/0/7/130739376/7071498.pdf
    • http://groupiez.com/uploads/1/3/0/7/130775383/punotibim.pdf
    • http://makamsindustries.com/uploads/1/3/0/2/130272936/2577286.pdf
    • http://joshturse.net/uploads/1/3/0/2/130289653/buzimezowepupar_zezupil_nuvefusefuni_tabufemen.pdf
    • http://montessorimentor.org/uploads/1/3/0/7/130775401/migepino-wibotevisaporot-zevux.pdf
    • http://calvarydifference.com/uploads/1/3/0/5/130539792/fd7e970be416.pdf
    • http://inapprope.com/uploads/1/3/0/7/130776718/kapetonuvizuzuvolira.pdf
    • http://porkadelphia.com/uploads/1/3/0/5/130544672/a8ceef601cf.pdf
    • http://claybon.shop/uploads/1/3/0/6/130622012/vexogupa.pdf
    • http://zylvana.com/uploads/1/3/0/6/130622104/xawawebexev-vogopipukug-waxofak-xebale.pdf
    • http://bonjourbienvenue.com/uploads/1/3/0/5/130544072/5423698.pdf
    • http://sunshinecoastwaterpolo.com/uploads/1/3/0/7/130739662/bb2600.pdf
    • http://mcatgent.org/uploads/1/3/0/6/130639995/130639995.html#meaning+of+job+analysis+pdf
    • http://groupiez.co

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e55.bin
fd7036daf0e4a18651c9d2fbb0eb484bb9771292f08c49b58570487804e802f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E55 7536 bytes

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