Malicious PDF — malware analysis report

Static analysis result for SHA-256 605190213826c301…

MALICIOUS

PDF

41.6 KB Authoring application: Solid Converter PDF
MD5: bc2d2be3d48d7e01c4d70ef9faef7f50 SHA-1: 64ba3a15d8818f5249efc0aab27cf72fc11b6867 SHA-256: 605190213826c30185544fed19bf2c8190b92f9ff1ae23d7aad68f02d5456815
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass external link farm, directing users to numerous other PDF files hosted on various domains. This technique is commonly used to distribute malware or phishing content, as indicated by the ClamAV detection and ML classifier. The embedded URLs are likely part of a campaign to redirect users to malicious sites or download further malicious content.

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://cuisineandspirits.com/uploads/1/3/0/6/130639854/meravukaguwumaliwuxe.pdf
    • http://an-service.dk/uploads/1/3/0/6/130620380/3526552.pdf
    • http://www.blondebrokeandlonely.com/uploads/1/3/0/6/130620834/sasuwulonos_podil_difinaru_sokasorevitel.pdf
    • http://www.agirlwithaview.ca/uploads/1/3/0/5/130545327/a0888aa8f67d98.pdf
    • http://archimmo.ca/uploads/1/3/0/2/130270882/9035746.pdf
    • http://subjectiveself.net/uploads/1/3/0/7/130776587/vabixubed-loxod-jivasowotenije.pdf
    • http://hvzaction.com/uploads/1/3/0/6/130640029/d6497.pdf
    • http://helenandrobin.com/uploads/1/3/0/3/130323173/zesejefum.pdf
    • http://www.wordproconsultancy.com/uploads/1/3/0/7/130739956/tumotazukegoxulo.pdf
    • http://carypestpros.com/uploads/1/3/0/6/130621721/guvilo_sopom_sugakeduronotip_fozezilafuva.pdf
    • http://wichitajoyorganics.com/uploads/1/3/0/4/130483638/2701677.pdf
    • http://chrismfwise.com/uploads/1/3/0/7/130776872/1444a1370f818cc.pdf
    • http://azmendinglives.com/uploads/1/3/0/5/130543207/e3bb10432e.pdf
    • http://myfineswine.com/uploads/1/3/0/6/130621754/juwod_siduvo_zikejujotuwix.pdf
    • http://nutricline.com/uploads/1/3/0/6/130620923/wizikebumedijebopon.pdf
    • http://beaniesshoerepair.com/uploads/1/3/0/5/130540472/730420.pdf
    • http://jaiveeramann.com/uploads/1/3/0/6/130620897/113327.pdf
    • http://www.dev2018.digcitinstitute.com/uploads/1/3/0/2/130287946/130287946.html#rfid+door+lock+arduino+code
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c47.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C47 16036 bytes
font_01_sfnt_off000043d1.bin
bfdac413cd6fdfe0c6ec7a5ba8ec37cbfdacdef26bdc79d7161987c23c2dad18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43D1 8540 bytes

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