Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b076d62526ec6b4…

MALICIOUS

PDF

36.6 KB Authoring application: Poppler-utils
MD5: 8b23ba3fd366f0c49be8817b296196bc SHA-1: 63c11ba9e3bf5d746c6b03d62c0da58a3185bca6 SHA-256: 7b076d62526ec6b43ac455a59e4e8c3d7bbae5c7c14731e56bd07a92bc834b51
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 SEO spam or distributing malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the nature of the link farm suggests the PDF's primary purpose is to redirect users to potentially harmful external resources.

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://warriorwomenwigs.com/uploads/1/3/0/8/130813705/5836000.pdf
    • http://polisglobal.com/uploads/1/3/0/7/130739651/ligazav-direfota-xelutovoxirekum.pdf
    • http://michelyngjurasic.com/uploads/1/3/0/3/130323449/8197436.pdf
    • http://slayedalteregos.com/uploads/1/3/0/5/130551523/kufizidadi.pdf
    • http://waggawaggaprobus.waggamatters.com/uploads/1/3/0/5/130588394/9634438.pdf
    • http://metropolismville.com/uploads/1/3/0/5/130543333/2643281.pdf
    • http://betaregistration.com/uploads/1/3/0/7/130775833/mononip-bemafoxijiwi-zapulok-fuzowajifelag.pdf
    • http://mx.beachwalkerboxes.com/uploads/1/3/0/3/130323469/89601417.pdf
    • http://lapbandlosangeles.net/uploads/1/3/0/4/130490117/wivubabivel.pdf
    • http://dildots.com/uploads/1/3/0/6/130621292/votis.pdf
    • http://jtheights.com/uploads/1/3/0/2/130289290/4495111.pdf
    • http://anakra.org/uploads/1/3/0/5/130589054/5936999.pdf
    • http://silkroadsourcing.co/uploads/1/3/0/7/130740001/kalazafabubibulutuw.pdf
    • http://knowtheblue.com/uploads/1/3/0/8/130813796/2af4a0d.pdf
    • http://neo-water.net/uploads/1/3/0/2/130272853/jezimuloxiworak.pdf
    • http://subaccounting.com/uploads/1/3/0/3/130379170/51491048c45b.pdf
    • http://sophiacatalina.org/uploads/1/3/0/5/130544385/danogu.pdf
    • http://diversitybusinessforum.com/uploads/1/3/0/7/130775589/2891098.pdf
    • http://simdisplays.com/uploads/1/3/0/6/130603989/luxafaselesode-dusilofamefos.pdf
    • http://unlocked.live/uploads/1/3/0/2/130289692/kirirugunin.pdf
    • http://99smsm.brdge.org/uploads/1/3/0/6/130639643/130639643.html#que+es+preeclampsia+en+una+mujer+embarazada

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003306.bin
a999172c5f30e9b9d41f32a3d95cc3d19a2c25a40f61721dccbee47e58d58614		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3306 7212 bytes

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