Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5f658fe46d40750…

MALICIOUS

PDF

66.7 KB Authoring application: OpenOffice Draw
MD5: f4ec58951e8c3b95daaa92dd12be3003 SHA-1: 015aac767dac2331ba7c67465344d5e6e665c70d SHA-256: f5f658fe46d40750a911470a25d2af8657f876e7e1b696fbc41d4f0355a5ee28
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution through these linked PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://rayraybeats.com/uploads/1/3/0/5/130588489/3708320.pdf
    • http://agwinsurance.com/uploads/1/3/0/5/130540026/dawujofawadu_wadexenizuw_zawuda_jefos.pdf
    • http://hostmaster.lc-audiovisual.com/uploads/1/3/0/2/130271035/wibirub.pdf
    • http://mycambodonuts.com/uploads/1/3/0/5/130589313/fac5b09c5e939e7.pdf
    • http://bucketmedia.net/uploads/1/3/0/3/130323794/wevazedax_jikuvagogov.pdf
    • http://changethenarrative.shop/uploads/1/3/0/8/130874530/12d54792.pdf
    • http://bestbroadbandsupplier2019.co.uk/uploads/1/3/0/5/130550969/laliduwuno.pdf
    • http://chantelle-shaw.com/uploads/1/3/0/6/130639217/pefexaguziwogul.pdf
    • http://alvarezorganicfarms.org/uploads/1/3/0/6/130603860/982876.pdf
    • http://www.manifestingmuse.co/uploads/1/3/0/5/130551704/e22ad6.pdf
    • http://middlechildclothing.com/uploads/1/3/0/7/130739081/4764386.pdf
    • http://mymobilephysio.com/uploads/1/3/0/7/130775603/tugesosibid.pdf
    • http://brucedaleestate.com/uploads/1/3/0/4/130489038/lazukizidiwe_nusulo_rumixag_diboxuxawix.pdf
    • http://theapothecarygroup.org/uploads/1/3/0/5/130539897/3dd69b77ebe2.pdf
    • http://healingwatersrvpark.com/uploads/1/3/0/5/130551182/ed527015670f6.pdf
    • http://cannabishouse.biz/uploads/1/3/0/7/130775293/nidap-nejitof.pdf
    • http://nautydoggundogkennels.com/uploads/1/3/0/2/130272613/4098553.pdf
    • http://academyofintegratedtherapies.com/uploads/1/3/0/7/130775358/62e47.pdf
    • http://sportsinsider.online/uploads/1/3/0/3/130313053/nadekifos-fawozirexuline-marinureg.pdf
    • http://whoareyoucostumes.com/uploads/1/3/0/6/130639313/gavuj.pdf
    • http://ibnem.slpny.com/uploads/1/3/0/6/130605443/130605443.html#bajaj+allianz+general+insurance+online+renewal+payment

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001473.bin
4f098cf8de77584e7490e9df3adf581f20ae4dbcf56f0903aeb8ee5a430e9b15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1473 9524 bytes
font_01_sfnt_off0000afab.bin
0f23141ba94d37b49c53016ac63a9b008a6ac8e4c4656a8d80e6725f77750189		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFAB 16140 bytes
font_02_sfnt_off0000c456.bin
bb66d78edca8aa75a8db461931e44ad6eab12e4cd439df836d92d13c6ef6c22d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC456 2668 bytes

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