Malicious PDF — malware analysis report

Static analysis result for SHA-256 e84e74a1651a95bc…

MALICIOUS

PDF

36.6 KB Authoring application: PDFedit
MD5: 0c9a5f09b1b50d6b7a6e51dfd3d744ec SHA-1: 286b3479e7b52bcda2ca37cdd52d2964408eca50 SHA-256: e84e74a1651a95bc881180ca214df5268fc61caa05565f5c0ce648e5b1ae0ef8
150 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 PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The primary attack pattern involves directing users to a link farm of potentially malicious PDFs.

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://thecoinmint.com/uploads/1/3/0/6/130620395/1402456.pdf
    • http://saludverdaderafuxion.com/uploads/1/3/0/5/130589286/vepepexipaso.pdf
    • http://runningsilentgaming.com/uploads/1/3/0/5/130542813/zazafe.pdf
    • http://bitcoinroundtable.org/uploads/1/3/0/8/130873975/318280.pdf
    • http://dlplastictech.com/uploads/1/3/0/4/130435652/zexojimepone.pdf
    • http://strmopus.com/uploads/1/3/0/6/130639710/e17733f21.pdf
    • http://nurturingyourmystic.com/uploads/1/3/0/5/130589334/zikewizuv.pdf
    • http://getitgatorauto.com/uploads/1/3/0/3/130323520/dcbcc6.pdf
    • http://sgtreasure.com/uploads/1/3/0/7/130739934/lisedarotezor_xevure.pdf
    • http://folkturk.net/uploads/1/3/0/6/130603818/pajudebaneje_womuvu_posemaruvokiv_lebik.pdf
    • http://marinbasic.com/uploads/1/3/0/6/130621223/losowamigo-limuk-kinigero.pdf
    • http://joyceaudy.com/uploads/1/3/0/7/130775834/vilixun.pdf
    • http://shotbyraquel.com/uploads/1/3/0/6/130603865/pimirokovu.pdf
    • http://www.omrr.org/uploads/1/3/0/4/130488295/lowafunij.pdf
    • http://rmsinternational.ca/uploads/1/3/0/2/130273617/5b4ffc6357f99be.pdf
    • http://nhca-lions.org/uploads/1/3/0/5/130589250/2406792.pdf
    • http://www.willspointbluebird.com/uploads/1/3/0/7/130739001/kovomezotetubot.pdf
    • http://strandgut-larp.de/uploads/1/3/0/9/130969853/zipugejudedo.pdf
    • http://loribeattycs.com/uploads/1/3/0/3/130324030/seravisobanete_misofupidokifak_xatemusuvu.pdf
    • http://cpanel.coprimag.com/uploads/1/3/0/4/130476597/130476597.html#countries+closest+to+a+free+market+economy

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003081.bin
7e9623be8508e9011fa76f643544a5e43d4af22005339055b8cb7f80e76edea0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3081 7844 bytes

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