Malicious PDF — malware analysis report

Static analysis result for SHA-256 29e04918d763230b…

MALICIOUS

PDF

39.6 KB Authoring application: Poppler-utils
MD5: 0c1388132d2c9282b82731bf0c15b6b9 SHA-1: 17733c5ccbf3889399bba3cf4ec0689ca9762bbd SHA-256: 29e04918d763230b0ad3d584c37fe3019602ca6e0c4005b728e775e434616ce2
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The ML classifier also assigned a high probability of maliciousness. The presence of numerous external links, all pointing to similarly structured URLs on various domains, strongly suggests a phishing or traffic redirection scheme. No scripts were extracted from this sample.

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://miltonrtrice.com/uploads/1/3/0/7/130776081/9f3b56151522b.pdf
    • http://mangumcourtyards.com/uploads/1/3/0/3/130379266/nawiwago.pdf
    • http://seesickapp.com/uploads/1/3/0/3/130313169/8e600b77.pdf
    • http://thegreatberlinwall.com/uploads/1/3/0/8/130814106/058507d747.pdf
    • http://biscuitandball.com/uploads/1/3/0/5/130590108/vutagovan_virutebexeve_vipaful.pdf
    • http://nickgreen68.com/uploads/1/3/0/6/130620700/6996820.pdf
    • http://bridgecrowdfund.com/uploads/1/3/0/7/130775734/rojixuj.pdf
    • http://timothyralston.com/uploads/1/3/0/8/130814976/nupijukaxiba-lifesagemip-kikovawikux-danevutomomeroz.pdf
    • http://lamplepost.com/uploads/1/3/0/2/130289580/8941059.pdf
    • http://www.centralflbizreview.com/uploads/1/3/0/6/130604532/lewazagedofuvinowu.pdf
    • http://74-123-75-191.mgwnet.com/uploads/1/3/0/7/130774973/130774973.html#afterglow+ag9+headset+xbox+one+charging

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040f1.bin
a35ad541fbf54d4b7f35fa9921b24afacd7e4f5bc0b148b692dd9117802264dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40F1 10436 bytes

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