Malicious PDF — malware analysis report

Static analysis result for SHA-256 74ef3448d86d758a…

MALICIOUS

PDF

33.7 KB Authoring application: ImageMagick
MD5: 9f86ea9ba77bd5b10fda7610d17972d3 SHA-1: 79253f631d3f830697283b52fc47260bec8e2394 SHA-256: 74ef3448d86d758a3159e19d3939e40a22210c4727434460d7c7f0667cef802c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, as detected by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The ML classifier and ClamAV also flagged this file as malicious, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall-7605656-0.

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://habit.buzz/uploads/1/3/0/7/130739964/mimagozu.pdf
    • http://babystepstosuccessfcc.com/uploads/1/3/0/6/130604233/ridegadixo.pdf
    • http://sittermax.com/uploads/1/3/0/4/130435757/mezib_mexalarepaj.pdf
    • http://churchofchrist-wellston.com/uploads/1/3/0/6/130620731/vonog.pdf
    • http://indachacademy.com/uploads/1/3/0/4/130476034/zasofawul_kobonujesokisi_zalibexixamud_dikugalumawaza.pdf
    • http://morph-bcs.com/uploads/1/3/0/6/130621870/vuwiwuduvete.pdf
    • http://chicagohcven.com/uploads/1/3/0/7/130776629/wefaruvuromuvarunod.pdf
    • http://mintyourcoin.com/uploads/1/3/0/7/130776249/402a4703.pdf
    • http://canadianproperty101.com/uploads/1/3/0/6/130621053/maputuw.pdf
    • http://luissalom.net/uploads/1/3/0/2/130287428/kijotisowugifon.pdf
    • http://carmarelpaso.net/uploads/1/3/0/7/130740401/sawep-repugitegojog-nogekugukipov.pdf
    • http://www.dimmocksretreat.com/uploads/1/3/0/5/130550903/lebiligab-ruviketibupi-dapojoxadufoxuv-razesegom.pdf
    • http://researchtracked.com/uploads/1/3/0/3/130324386/jedosipomibitireniga.pdf
    • http://apartmentgems.com/uploads/1/3/0/4/130436190/vawupajo-pinurazisadu-sibotuvuxidapa.pdf
    • http://buildajump.com/uploads/1/3/0/7/130776485/cfec9f228af919f.pdf
    • http://techrecommerce.org/uploads/1/3/0/3/130323405/xilofuxojukorufud.pdf
    • http://reddeathromantics.com/uploads/1/3/0/7/130739772/9c75d0.pdf
    • http://sunrayvapors.com/uploads/1/3/0/6/130620625/8253443.pdf
    • http://nanoluge.com/uploads/1/3/0/6/130620962/9e0942b393.pdf
    • http://agapiredesign-de.devsite-1.com/uploads/1/3/0/5/130543059/130543059.html#avengers+infinity+war+hd+pic+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000264e.bin
fce40c20254039c6c22bb2e1bff7c9c8e9fbd9428609ad101d4595af62662d15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x264E 7216 bytes

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