Malicious PDF — malware analysis report

Static analysis result for SHA-256 32df8d73393b3ea2…

MALICIOUS

PDF

47.4 KB Authoring application: QPDF First seen: 2020-09-24
MD5: 8438e6f0a55afdf1919623169ec57a24 SHA-1: 494b21a940ffbed5bcc865856a89493fc11a5205 SHA-256: 32df8d73393b3ea2ef7162b7d41e990b11efe163a7946c1efcc1334ebe5d1262
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm of 22 external PDF files, masquerading as an insurance claim form. The ClamAV heuristic indicates this is a known phishing lure. The embedded URLs are likely used to redirect the user to download further malicious content, such as additional phishing documents or malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://priorlakeselfstorage.com/uploads/1/3/0/2/130288498/edaeb8e49.pdf In PDF document text
    • http://bedobecome.co/uploads/1/3/0/7/130738754/d03edce58b5fa.pdfIn PDF document text
    • http://jufowazuve.kamafishing.ru/uploads/2020/01/28/kezimareniboralideg.pdfIn PDF document text
    • http://nipmucprincipal.com/uploads/1/3/0/2/130289427/7b71fd9.pdfIn PDF document text
    • http://xoxitanibu.urlmac.com/uploads/2020/01/28/nologira.pdfIn PDF document text
    • http://satnickod.com/uploads/1/3/0/4/130488666/c65f48b7e436a.pdfIn PDF document text
    • http://acwri.org/uploads/1/3/0/6/130639661/171325.pdfIn PDF document text
    • https://vepaxemamarifi.weebly.com/uploads/1/3/0/5/130539279/8555311.pdfIn PDF document text
    • http://necementshippers.com/uploads/1/3/0/4/130478314/vebiz.pdfIn PDF document text
    • http://doulajane.com/uploads/1/3/0/2/130270872/3239418.pdfIn PDF document text
    • http://perfect-right.com/uploads/1/3/0/5/130543868/1760097.pdfIn PDF document text
    • http://kylaconner.com/uploads/1/3/0/3/130313590/130313590.html#rspca+pet+insurance+claim+form+ausIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A5 9464 bytes
SHA-256: a75cb343bc08c6bcdf4ba104d7a83b7657f918a1e41d6aad434a2cb5ddda3552
font_01_sfnt_off00007385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7385 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63