Malicious PDF — malware analysis report

Static analysis result for SHA-256 d89fea4fa0f09876…

MALICIOUS

PDF

33.5 KB Authoring application: Adobe PDF Library 9.0
MD5: 743e9f7e43cc95b077bf882418ca6bbc SHA-1: fef9122843ae5922ac08945cfdc946ee16f2f6c6 SHA-256: d89fea4fa0f09876ee3e85f91d6266f5721d07dee60d0f5a340d2d6adedffecc
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links likely lead to malicious PDF files, as indicated by the ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The ML classifier also flagged this PDF with high confidence, suggesting a malicious intent to redirect users to harmful content.

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 https://fodufixetok.weebly.com/uploads/1/3/0/5/130590478/wilemozawigere.pdf
    • http://burbankbees.com/uploads/1/3/0/4/130483632/simeke.pdf
    • http://arkansasartpottery.com/uploads/1/3/0/3/130379316/e079e5b83.pdf
    • http://zatana.bosh.moscow/uploads/2020/01/29/ff5955726fd8.pdf
    • http://cothamsinthecity.com/uploads/1/3/0/3/130323232/bepube-soramesibavo-zifovijawazibof-lejakelagir.pdf
    • https://wupizusometewu.weebly.com/uploads/1/3/0/4/130436006/sigela.pdf
    • http://mizfamphoto.com/uploads/1/3/0/6/130621589/9e385f071.pdf
    • http://blushskyboutique.com/uploads/1/3/0/4/130436079/dfc09eb226ad35.pdf
    • http://piv.ethereumcryptos.biz/uploads/2020/01/29/robupizi.pdf
    • http://beeswim.com/uploads/1/3/0/3/130379921/2256921.pdf
    • http://lilfix.com/uploads/1/3/0/5/130543240/c066c2a127.pdf
    • http://dag.zv77.ru/uploads/2020/01/27/5eb562.pdf
    • http://smoothtransitionservices.com/uploads/1/3/0/6/130621140/daxokef.pdf
    • http://migeorgeson.com/uploads/1/3/0/5/130544652/nugiwepigedule.pdf
    • http://agicole-acces.com/uploads/2020/01/27/jijugilifuk.pdf
    • http://rogaj.telekom-internet.info/uploads/2020/01/29/7505550.pdf
    • http://sif.vsjamoskva.ru/uploads/2020/01/29/nafijetolini_sezimezusurot.pdf
    • http://nakedtrackdays.net/uploads/1/3/0/6/130620412/130620412.html#molecular+compound+naming+worksheet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000148e.bin
26c8106f7e28c2393ac4c0ba4099e8ae91046156fbb0871f0fe60fadd00b07cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x148E 7772 bytes

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