Malicious PDF — malware analysis report

Static analysis result for SHA-256 d24053dadc06616a…

MALICIOUS

PDF

54.3 KB Authoring application: pdf-parser
MD5: d0e35ee68ad5216a7c8372dc8ba87601 SHA-1: 56011b209a7ff7d195f509c408c8f23389e9ce92 SHA-256: d24053dadc06616a9e17f81abd417d6c641d3f1093d1d01a0e4a2bfbf8111c50
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified as a link farm, which is a common technique for distributing malicious content or redirecting users to phishing sites. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a high ML classifier score further support its malicious nature. The document body's content is heavily corrupted, preventing analysis of its specific lure.

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://microbearding.com/uploads/1/3/0/8/130813489/4161052.pdf
    • http://dealgates.com.au/uploads/1/3/0/8/130814088/7402725.pdf
    • http://mohannadgharaibeh.com/uploads/1/3/0/6/130604326/vokuw.pdf
    • http://www.conservacionuach.cl/uploads/1/3/0/7/130739750/828648c2400674.pdf
    • http://woodgroupcapital.com/uploads/1/3/0/6/130620798/kelivaworutajo_luzup_semumasigol.pdf
    • http://dingsrus.com/uploads/1/3/0/4/130435892/ponobowipuvonum_kunatuxaw_deladololofap_nozeze.pdf
    • http://oaktreecapllc.com/uploads/1/3/0/5/130589315/jokak-jigukemovirom.pdf
    • http://vaccin8apparel.com/uploads/1/3/0/5/130551184/33326ae0f.pdf
    • http://exigentmd.com/uploads/1/3/0/4/130476078/kobugamiwibuxiwasalu.pdf
    • http://michaelroberto.net/uploads/1/3/0/7/130776755/matajemetofabuwuw.pdf
    • http://minimarketlorena.com/uploads/1/3/0/2/130271171/xufigobi_sifedevonu_pujuzov_penuligoki.pdf
    • http://songeur.net/uploads/1/3/0/4/130489522/kugutunezavopo-zizopejidu-sabanilutidis.pdf
    • http://www.danvillechoirs.com/uploads/1/3/0/3/130313613/699738.pdf
    • http://bastion.co.nz/uploads/1/3/0/7/130776307/guritevidanilu.pdf
    • http://acrowscalling.com/uploads/1/3/0/6/130622068/jasisofube_giseku_sijavowok.pdf
    • http://mybabyluvz.com/uploads/1/3/0/6/130620962/getedi-sinitujepe-xukibimuxiba.pdf
    • http://woodridgemusicclub.com/uploads/1/3/0/5/130588333/kagotix.pdf
    • http://gubaogongkaisaizaixiantouzhu.br3h.com/uploads/1/3/0/7/130775982/130775982.html#virtues+of+reading+surah+al+kahf+on+friday

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00004c43.bin
321ba96a6ad88691d3c9a00a2a2a833abff9dd7abecb78fac1bcee67c73cb20f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C43 24904 bytes
font_01_sfnt_off000077e3.bin
29f669cd61691e7afd929ce234bdeb04ecaf381ec71a7c5be7a4e8a5e884a619		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77E3 8120 bytes

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