Malicious PDF — malware analysis report

Static analysis result for SHA-256 82015bc2996b169c…

MALICIOUS

PDF

40.8 KB Authoring application: Adobe PDF Library 9.0
MD5: fd79817ffe6b9cbe7b48c57fbcecac8b SHA-1: b17af3eafa9e5149ea8206ff1461bc1a475ce81e SHA-256: 82015bc2996b169cfef24a3bcf587720daea74f16e8ded3eedf7d96cc6c29dc6
150 Risk Score

Malware Insights

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

This PDF was flagged by multiple heuristics, including a critical finding for a link farm containing 24 external PDF links, and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The embedded URLs suggest a phishing or malware distribution campaign. The primary malicious URL identified is http://novanage.gromovfood.ru/uploads/2020/01/28/4c3112.pdf.

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://novanage.gromovfood.ru/uploads/2020/01/28/4c3112.pdf
    • http://nn-mockup.weebly.com/uploads/1/3/0/4/130488476/1683116.pdf
    • http://polksoccerfund.com/uploads/1/3/0/2/130274263/zifulodopamix.pdf
    • http://ptxsynchro.org/uploads/1/3/0/5/130551487/vivajis.pdf
    • http://zywavelawsuit.com/uploads/1/3/0/2/130289334/1668552.pdf
    • http://rqacommittees.com/uploads/1/3/0/6/130639675/kozenodowe_fexoru_ginevonaliva.pdf
    • http://neilestrick.com/uploads/1/3/0/6/130621542/1717860.pdf
    • http://joyfullnight.com/uploads/1/3/0/5/130544043/lofigav.pdf
    • http://embroideryafterdark.shop/uploads/1/3/0/5/130589339/jujorojatopid-numimali-wared-jagefep.pdf
    • http://hnccleaning.co.nz/uploads/1/3/0/6/130620265/1894358.pdf
    • http://amaarchitectsllc.com/uploads/1/3/0/4/130483989/zazenowoze_zizegul.pdf
    • http://katshea.net/uploads/1/3/0/4/130435826/7459192.pdf
    • http://arcadiagardensllclandscapinganddesign.com/uploads/1/3/0/8/130813548/130813548.html#recettore+muscarinico+m4

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014a5.bin
e3f0b084a83ca8d982ecf0bc4dd1671d83767d7f3e85ae950e9766d2bf891892		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14A5 8544 bytes
font_01_sfnt_off000064fd.bin
721152ce7f7cb7438976e4e66db7bf061173aa22a859e25ab7d6d2d4b5367394		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64FD 1740 bytes

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