Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1341153b630c9d4…

MALICIOUS

PDF

46.8 KB Authoring application: LibreOffice
MD5: 202f23ee0b90a06bd37fdb0952744416 SHA-1: df58c7d5f17d4f137fa1864338de95ad1024c75c SHA-256: f1341153b630c9d44c12576ca697bdb76412d0cd4bb77fd25749e51c6f4d8965
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. The critical PDF_SEO_LINK_FARM heuristic indicates the presence of 31 external links to PDF files, suggesting a link farm designed to distribute malicious content or conduct phishing attacks. The embedded URLs are the primary indicators of compromise.

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://moodish.org/uploads/1/3/0/7/130739072/lololazifozawun.pdf
    • http://funeventswithfriends.com/uploads/1/3/0/7/130739235/poxegafebolo.pdf
    • http://eastcoastbadmintonclub.ca/uploads/1/3/0/8/130813835/venenedadesolu.pdf
    • http://virtualhandsco.com/uploads/1/3/0/5/130546040/917588.pdf
    • http://quantumspirit.us/uploads/1/3/0/6/130621369/fcb708.pdf
    • http://freshhopbeerweek.com/uploads/1/3/0/3/130323979/e30ff7b.pdf
    • http://myuglyduckhome.com/uploads/1/3/0/5/130539934/8e6f38a6477c6.pdf
    • http://ovrkll.net/uploads/1/3/0/7/130776720/d544bb49d6f912.pdf
    • http://missoulaimports.net/uploads/1/3/0/7/130738984/47dd6525.pdf
    • http://courageouscommunication.org/uploads/1/3/0/4/130476481/2773192.pdf
    • http://www.freedome.org/uploads/1/3/0/2/130271057/3059117.pdf
    • http://sgvweekly.com/uploads/1/3/0/4/130490019/zokilomufaliw.pdf
    • http://jasonwmayfield.com/uploads/1/3/0/2/130273899/wetekadiwufo.pdf
    • http://hormonematters.com.au/uploads/1/3/0/6/130639019/jodavomanezesan_mobexemi_kutita.pdf
    • http://knightsandogres.com/uploads/1/3/0/8/130814360/nesetoragurudumoba.pdf
    • http://mail.gingercarepets.com/uploads/1/3/0/4/130494871/vujanefazoboxesan.pdf
    • http://tanenwerx.com/uploads/1/3/0/3/130379237/1063871.pdf
    • http://botoxalpharetta.com/uploads/1/3/0/5/130539092/f2f75.pdf
    • http://apsolutionsllc.net/uploads/1/3/0/2/130289565/d0b64.pdf
    • http://ceonet.on.ca/uploads/1/3/0/5/130589384/6428011.pdf
    • http://whyareyouontheinternet.com/uploads/1/3/0/9/130969237/puramawulageda.pdf
    • http://gz9c2.slpny.com/uploads/1/3/0/6/130639400/130639400.html#acca+exam+f3

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003de4.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3DE4 16036 bytes
font_01_sfnt_off00005535.bin
4d865d5150a13deaefe60aefb4de72f0b17bc804fc20c27cd3da85acf4069d11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5535 8488 bytes

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