Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d11e071301f72dc…

MALICIOUS

PDF

42.0 KB Authoring application: Inkscape
MD5: 0f295cc02325703c5284407f26c464f0 SHA-1: dc82538ae24e6724b6c3c25d0469f9c0b00f773a SHA-256: 5d11e071301f72dce4255b8f0bd902340212f7c52e3ee05e7b238bdeb36869b9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified as a PDF link farm, suggesting a phishing or SEO manipulation tactic. The ClamAV detection and ML classifier further indicate malicious intent, likely related to phishing. Although no scripts were explicitly extracted, the presence of embedded URLs and the heuristic findings strongly suggest the document is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://catamaranaminablog.com/uploads/1/3/0/5/130545643/559b4.pdf
    • http://zeme.radostnasha.club/uploads/2020/01/28/gixezorub.pdf
    • http://decibel-doo.com/uploads/1/3/0/3/130313766/5768011.pdf
    • http://sobufun.findurlove.store/uploads/2020/01/28/koloparawaxumu.pdf
    • http://pacopioneervalley.org/uploads/1/3/0/6/130604286/zuxunetujekebe_muvoxiru_duvinut.pdf
    • http://shifnalbc.co.uk/uploads/1/3/0/6/130620657/3f60e.pdf
    • http://wufasuxiwa.gotaserena.com/uploads/2020/01/29/98882d.pdf
    • https://vojalepiwe.weebly.com/uploads/1/3/0/5/130539048/722b2ae8f258668.pdf
    • http://sabyhage.se/uploads/1/3/0/3/130379193/2823412.pdf
    • http://mizzoureview.com/uploads/1/3/0/2/130270796/pofutumimivigodaxe.pdf
    • http://rafi.cmb-contact.com/uploads/2020/01/27/6fdc65.pdf
    • http://carlocornelli.com/uploads/1/3/0/6/130639822/zedusi_dapowolidavu_zusogaxik_zuxopagin.pdf
    • http://zuroceanwear.com/uploads/1/3/0/5/130538949/vejelevudekobu.pdf
    • http://diasporawearuk.co.uk/uploads/1/3/0/5/130588256/6092d12b4f01ba.pdf
    • https://regodekojep.weebly.com/uploads/1/3/0/5/130550834/6224568.pdf
    • http://mobyrapid.com/uploads/1/3/0/4/130475981/130475981.html#easter+coloring+pages+pdf+free
    • 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_off000013e2.bin
f5674f7feb1dd205afb53062d8501ec74ade85da5cf3857a6faee1fd9e9862e4
pdf-font-stream PDF embedded font (sfnt) at offset 0x13E2 7320 bytes
font_01_sfnt_off00005d8d.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D8D 16036 bytes