Malicious PDF — malware analysis report

Static analysis result for SHA-256 10f94d484f8afe10…

MALICIOUS

PDF

44.5 KB Authoring application: Inkscape
MD5: db30031fddbeae3c96101640e317821a SHA-1: ecd2711c962386dd3a4d9f622affc9ca6004e269 SHA-256: 10f94d484f8afe1040e54da264d080330fd141f0d74fe683302efe2227ce7352
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a mass external link farm, directing users to download other PDF files from various domains. The embedded content, though partially corrupted, includes URLs that are part of this link farm, suggesting a phishing or SEO poisoning attack. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious intent.

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://abingdoncc.org/uploads/1/3/0/6/130622092/jupuwedabuju.pdf
    • http://maryplewisdesigns.com/uploads/1/3/0/6/130620948/3652657.pdf
    • http://remnantstudios.com/uploads/1/3/0/4/130476721/xoxeges_wivedeg_gigiripov_ruwukixojane.pdf
    • http://wayjayjetwas.com/uploads/1/3/0/2/130289509/ludosusurozezitukuji.pdf
    • http://nuovaedilart.it/uploads/1/3/0/3/130323552/dizowid.pdf
    • http://ncfse.com/uploads/1/3/0/2/130273894/lukuporejokewulawale.pdf
    • http://cavinfitness.com/uploads/1/3/0/6/130640040/1485845.pdf
    • http://livingthegoodlimelife.com/uploads/1/3/0/5/130550743/tiniwafopubelaf.pdf
    • http://authortonjamurphy.com/uploads/1/3/0/5/130589362/suruni.pdf
    • http://vowugit.themojo.ru/uploads/2020/01/28/salebepezudob_fasifevuka_gatelewibig.pdf
    • http://nursingarmpillow.com/uploads/1/3/0/5/130547771/130547771.html#inventory+turnover+period+ratio+interpretation
    • 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_off000012ea.bin
9ade58573f2a62c3e6e41193c2c79aaa088ef8d9c2119a528b0b2fc4c1c27344		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12EA 8720 bytes
font_01_sfnt_off000067a1.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67A1 16036 bytes

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