Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d7dda831b282946…

MALICIOUS

PDF

60.7 KB Authoring application: ImageMagick
MD5: afa4dc3b7ead98cf6b408600cd6746ae SHA-1: 1a3ec22fb32f2a57fa6a8f89e0353705d606d011 SHA-256: 6d7dda831b28294613a039d5dff1b2e3d4ae32bd8c61fe074c706c185159119c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to malicious resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://glensidedolphins.weebly.com/uploads/1/3/0/3/130379121/buvibononeva.pdf
    • http://thisthoughts.com/uploads/2020/01/28/657600.pdf
    • http://missjefaa.com/uploads/1/3/0/5/130550770/dekijiterosomav.pdf
    • http://artesania.store/uploads/1/3/0/3/130379336/patux_boximenurele_nisalame_fabenopuris.pdf
    • http://abrandex-design.com/uploads/1/3/0/6/130639685/zuwiniruluw.pdf
    • http://silvertonnaz.com/uploads/1/3/0/3/130323705/mabenezuvunenumogiti.pdf
    • http://sinrevizion191.weebly.com/uploads/1/3/0/6/130639024/fanuf.pdf
    • http://advancedspeedtechnologies.com/uploads/1/3/0/6/130604165/834ee5.pdf
    • http://aenderungschneiderei-musovic.com/uploads/1/3/0/5/130541744/2954883.pdf
    • http://mysteriesofparis.com/uploads/1/3/0/2/130270904/xaval_fevazep_jelatajexeke_zobelep.pdf
    • http://alyssaoeder.com/uploads/1/3/0/6/130620572/zozogufiro.pdf
    • http://mrmacbible.org/uploads/1/3/0/4/130483551/7227010.pdf
    • http://photobattle-volgograd.online/uploads/2020/01/28/kulabozulozekifola.pdf
    • http://nononsensehomeinspection.com/uploads/1/3/0/4/130489604/55f063675f.pdf
    • http://noojoom-swissra.com/uploads/1/3/0/4/130476557/wevawubizaz-ritapidim.pdf
    • http://mermaidfitnessbump.com/uploads/1/3/0/3/130324315/06032a397ae233.pdf
    • http://muvepobul.krokus-avto.ru/uploads/2020/01/29/rokirinanukinilina.pdf
    • http://celestialsciencearomatherapy.com/uploads/1/3/0/4/130483337/3135461.pdf
    • http://ttmr8.org/uploads/1/3/0/4/130483117/gabeme-sadoxaw-xovineka-momopogufel.pdf
    • http://refreshingoasis.org/uploads/1/3/0/5/130551330/65453.pdf
    • http://nathanraywilkerson.com/uploads/1/3/0/6/130603815/vaxufarifiz.pdf
    • https://loruzizixom.weebly.com/uploads/1/3/0/4/130435661/7322874.pdf
    • http://kreativekidsworld.com/uploads/1/3/0/4/130435959/130435959.html#yvain+ou+le+chevalier+au+lion+texte+fran%C3%A7ais+moderne+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001109.bin
a59d4e5925b0c0ec006fb4504583c4332b84302ca63a198a8b64f43080bfda09
pdf-font-stream PDF embedded font (sfnt) at offset 0x1109 11136 bytes
font_01_sfnt_off00009b64.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B64 2652 bytes
font_02_sfnt_off0000a46c.bin
ed8cfb750fb76b81095c1480bea30a32fb924b5b1733d93a971b95c1d70018d4
pdf-font-stream PDF embedded font (sfnt) at offset 0xA46C 16548 bytes