Malicious PDF — malware analysis report

Static analysis result for SHA-256 8750a6f02c36fdb2…

MALICIOUS

PDF

45.6 KB Authoring application: ImageMagick First seen: 2020-09-07
MD5: e87a21dfa0908cee7e7bdec5a05bebbd SHA-1: 3c1e17bc83ea17cc526cf679627be9221b8d8655 SHA-256: 8750a6f02c36fdb202886c01968ebcb4ab7a902fda5cf8e50557657b88270bf2
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file exhibits characteristics of a phishing lure, as indicated by the presence of a visual download button and a large number of embedded external links. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to distributing further malware or phishing content. The malformed stream length also points to an attempt to conceal malicious code.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://veliseda.deepo.icu/uploads/2020/01/27/lupuxudanulunuwur.pdf In PDF document text
    • http://aasoftballclub.com/uploads/1/3/0/5/130589214/269384.pdfIn PDF document text
    • http://fidejo.sacocompany.net/uploads/2020/01/27/5020cde5245427.pdfIn PDF document text
    • http://sherylpreston.com/uploads/1/3/0/5/130550846/3705675.pdfIn PDF document text
    • http://autocivilka.site/uploads/2020/01/29/fakumawawaxorev.pdfIn PDF document text
    • http://msbrownenglishclass.weebly.com/uploads/1/3/0/6/130620460/mopexoxileju_lavax.pdfIn PDF document text
    • http://wazug.womensbeatuy.net/uploads/2020/01/29/049fc05b7.pdfIn PDF document text
    • http://theluxycloset.online/uploads/1/3/0/6/130604258/xolunamexa_fesimekekuw_nejezeb_bamavi.pdfIn PDF document text
    • http://newmarlboroughfiber.org/uploads/1/3/0/3/130323124/3754272.pdfIn PDF document text
    • http://til.krweb.tech/uploads/2020/01/28/ritekubadonodij.pdfIn PDF document text
    • http://fatuj.seo-spytnik.com/uploads/2020/01/27/519cffa62af915d.pdfIn PDF document text
    • http://augrio.ai/uploads/1/3/0/5/130539338/wabedojewuxob.pdfIn PDF document text
    • http://mountainsportandfitness.com/uploads/1/3/0/5/130589444/tobijope-fexupijenu.pdfIn PDF document text
    • http://stewartelementarypto.weebly.com/uploads/1/3/0/6/130604427/xufarowesopemo.pdfIn PDF document text
    • http://mytaj-prembenefits.com/uploads/1/3/0/6/130640109/4193f4.pdfIn PDF document text
    • http://mattsamberg.com/uploads/1/3/0/4/130436431/2319515.pdfIn PDF document text
    • https://genitotofifig.weebly.com/uploads/1/3/0/2/130288594/6746218.pdfIn PDF document text
    • http://miracleinabucket.com/uploads/1/3/0/4/130476885/130476885.html#7-+pdf+split+merge+fullIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1562 9416 bytes
SHA-256: a5e1de0d456f75d1f2d0a9df4555adf9982b889e1321d574a0d0f13d225ae9ad
font_01_sfnt_off00006633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6633 18724 bytes
SHA-256: 609c37c24fce85aa7eea8e1d6e27e0244d947cab8423968f4a3645b9b1d38b3e

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