Malicious PDF — malware analysis report

Static analysis result for SHA-256 590992332033c517…

MALICIOUS

PDF

39.3 KB Authoring application: Serif PagePlus
MD5: b42c181d0d0f4f0934533a4e784289da SHA-1: 94cd319515ccb260104d112c37a8994fa56f10fd SHA-256: 590992332033c517d2fb1d788a278a2bb49cadc2f7c40f0e2fd8091ba00c275f
150 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0 and a machine learning classifier with high confidence. It contains a large number of embedded URLs pointing to external PDF files, suggesting a link farm or redirection mechanism. The document body contains garbled text and references to 'cheat codes', which is likely a lure to disguise the malicious nature of the document. No scripts were extracted from this sample.

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://sevofiruk.dmytro.it/uploads/2020/01/29/d28ce9e233545.pdf
    • http://gtyp.org/uploads/1/3/0/3/130323290/58d036434af.pdf
    • http://dax.tatvideon.ru/uploads/2020/01/27/412231.pdf
    • http://thecranfordsocial.com/uploads/1/3/0/6/130620760/9406001.pdf
    • http://wedo.5525.su/uploads/2020/01/28/6995360.pdf
    • http://taxovufav.nithyamarriages.com/uploads/2020/01/27/9c30bcc4a16500.pdf
    • http://matapowuge.vizitki-listovki.ru/uploads/2020/01/29/5049795.pdf
    • http://ajshealthandbeauty.com/uploads/1/3/0/6/130621057/9754555.pdf
    • http://liboga.itilavto.ru/uploads/2020/01/27/2339440.pdf
    • http://witibim.imakerlab.club/uploads/2020/01/29/727866.pdf
    • http://pettoy.net/uploads/1/3/0/5/130543545/girof_woxorego_bowata_xopijan.pdf
    • http://boniluses.prorealgame.ru/uploads/2020/01/27/4804502.pdf
    • http://atozadventures.co.uk/uploads/1/3/0/3/130313081/kulerotararu.pdf
    • https://kepefowovowajul.weebly.com/uploads/1/3/0/5/130539728/7e0634.pdf
    • http://dominiquesoulard.com/uploads/1/3/0/3/130323767/xaludes.pdf
    • http://rfleasingga.com/uploads/1/3/0/5/130588875/rufolafalidegeles.pdf
    • http://canadian-photography.ca/uploads/1/3/0/6/130640197/xefumuras_mawugu_lakibebedasi.pdf
    • http://stockmi.com/uploads/1/3/0/6/130621267/6b8cf1618554ee.pdf
    • http://monuem.org/uploads/1/3/0/4/130477979/4354869.pdf
    • http://pugetsoundmedium.com/uploads/1/3/0/3/130313445/9100403.pdf
    • http://nicolebarry.ca/uploads/1/3/0/3/130323425/f174c32ea65b34.pdf
    • http://raghavmehta.com/uploads/1/3/0/6/130621689/newibatolod.pdf
    • http://nanascountryporch.com/uploads/1/3/0/2/130289241/labuwezole_mujegepube_maziwojejapamu_gujapij.pdf
    • http://war.assinaturareativacaoeletronica.com/uploads/2020/01/28/lamowokiwuw.pdf
    • http://northeastohiodukes.com/uploads/1/3/0/6/130604162/130604162.html#cheat+codes+playstation+2+gta+vice+city
    • http://war.assinaturareativacaoeletronica.com/uploads/2020/01/28/lamowoki

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001714.bin
8500b149c7ea15020b28aedb2b1b3e714b0940d963552d5355d3c7b07df1de62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1714 7936 bytes

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