Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dae4d1ffe9a8e91…

MALICIOUS

PDF

60.0 KB Authoring application: Scribus
MD5: e052a7e57e1890b90c20615ec2cce07c SHA-1: 8c7e2cda0bfe62d89485ba2cedaea86bd6ff1880 SHA-256: 5dae4d1ffe9a8e9192d778f717f4617b932cd1c155725e9301cfeb9471df466e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a mass external link farm, directing users to numerous other PDF files hosted on various domains. This behavior is indicative of a phishing or malware distribution campaign, as suggested by the ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The embedded URLs are the primary indicators of compromise, likely serving as lures for further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://mirandatinaphotography.com/uploads/1/3/0/6/130620965/5ecd81c865.pdf
    • http://mpjennings.com/uploads/1/3/0/3/130313336/bijefopidem_savikebifunoso_wirejezamit_peten.pdf
    • http://www.moneymortgageconsultants.com/uploads/1/3/0/6/130605335/tukuwuroboxufepevu.pdf
    • http://www.transdimension.net/uploads/1/3/0/4/130476214/mubegelokaxepi.pdf
    • http://jokessofunny.com/uploads/1/3/0/6/130620882/wiper.pdf
    • http://immunoreceptor.com/uploads/1/3/0/2/130289237/6715450.pdf
    • http://intelisched.com/uploads/1/3/0/2/130272240/genutusi.pdf
    • http://kennatejchman.com/uploads/1/3/0/3/130324191/revijadaruwas.pdf
    • http://everybodyneedsyoga.com/uploads/1/3/0/4/130478106/41f20e1b94.pdf
    • http://club8inch.com/uploads/1/3/0/4/130435657/fejujaxu_kefeposagime_zitanipekonokad.pdf
    • http://solarscrappers.com/uploads/1/3/0/7/130739495/5372250.pdf
    • http://jenaechristinaesthetics.com/uploads/1/3/0/9/130969993/darejomumobi.pdf
    • http://craigslistfoundation.net/uploads/1/3/0/6/130621956/fefevig.pdf
    • http://contenthub2017.com/uploads/1/3/0/7/130739000/vukumoreb-bowij-wukavo.pdf
    • http://vps23.pleasingfood.com/uploads/1/3/0/9/130969262/130969262.html#os+principais+agregados+macroecon%C3%B4micos+s%C3%A3o
    • 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_off000010a0.bin
1ed85e30ea0126e89946cca2611af5e87e92015ca88df6ac003bd262e0d853cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x10A0 11376 bytes
font_01_sfnt_off0000913b.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x913B 2652 bytes
font_02_sfnt_off00009a09.bin
b080e6aa9682ff87567a230b404ab00780bafcfd3ba11e3f536b788ca6e08ef5
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A09 16060 bytes