Malicious PDF — malware analysis report

Static analysis result for SHA-256 6856f6fd9406c392…

MALICIOUS

PDF

56.5 KB Authoring application: LibreOffice
MD5: a0e1069ea826904b5d426eb36cefd0ed SHA-1: 4f1b41b10cec071730e61fadd6c09cab2692fceb SHA-256: 6856f6fd9406c39288cd50542746a6b01096718111c3ed59f29dfa3c0ee7870f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm, which is a common technique for phishing or distributing further malware. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically classified as phishing. The document body, though heavily obfuscated, contains references to these URLs, reinforcing the attack pattern.

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://kum.redmangroupe.com/uploads/2020/01/27/fb6befc28e.pdf
    • http://ramed.vodabur1.ru/uploads/2020/01/29/2034776.pdf
    • http://sebu.zanimato.ru/uploads/2020/01/29/7042734.pdf
    • http://mitchgallagherband.com/uploads/1/3/0/6/130621142/3cc022145.pdf
    • http://moagunworks.com/uploads/1/3/0/6/130639092/5046576.pdf
    • http://breesbag.com/uploads/1/3/0/2/130272485/gewilawikugalevasa.pdf
    • http://juv.maxtonplains.com/uploads/2020/01/28/fobuzafum.pdf
    • http://ded.stellaz-66.ru/uploads/2020/01/27/c7e20916b450e.pdf
    • http://novapolel.n26-logine.com/uploads/2020/01/27/7471933.pdf
    • http://swampersoriginal.com/uploads/1/3/0/2/130271211/c2196ca8fbc062.pdf
    • http://theknowledgewarriors.com/uploads/1/3/0/5/130544539/da363899b.pdf
    • https://xenasunib.weebly.com/uploads/1/3/0/4/130435820/zitutupowuzebafabilu.pdf
    • http://apneastudio.com/uploads/1/3/0/4/130494743/8196922.pdf
    • http://artexart.uk/uploads/1/3/0/2/130289224/guvosawaga.pdf
    • http://sozegovu.mediaprojethaiti.org/uploads/2020/01/27/tadikexutejovap-madus-nasodo.pdf
    • https://noxixukatusupud.weebly.com/uploads/1/3/0/5/130551363/dusorerimerumusu.pdf
    • http://benbodnarfilms.com/uploads/1/3/0/5/130539706/wugudalutukisov-pubigavi-sorotaz-porat.pdf
    • http://nmation.org/uploads/1/3/0/5/130539049/ff66dca0330.pdf
    • http://wofivunugi.rybalovnyesnasti.info/uploads/2020/01/28/riwakerapewezi_lokedirasox_fokigariruvesa.pdf
    • http://sinew.as-ru.ru/uploads/2020/01/28/3375f.pdf
    • http://misssoutheastpageantry.us/uploads/1/3/0/5/130550915/130550915.html#public+service+announcement+script+format

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000147b.bin
aa2898cb216aeb2f45fca1a48ad0e6a91c11e2039b7119907c6175722870146d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x147B 8204 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.