Malicious PDF — malware analysis report

Static analysis result for SHA-256 8750a6f02c36fdb2…

MALICIOUS

PDF

45.6 KB Authoring application: ImageMagick
MD5: e87a21dfa0908cee7e7bdec5a05bebbd SHA-1: 3c1e17bc83ea17cc526cf679627be9221b8d8655 SHA-256: 8750a6f02c36fdb202886c01968ebcb4ab7a902fda5cf8e50557657b88270bf2
138 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains an embedded JavaScript stream and a large number of external links, indicating a phishing or malicious content distribution attempt. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'PDF_SEO_LINK_FARM' heuristic strongly suggest this is a phishing lure designed to redirect users to malicious PDF downloads. The presence of a visual download button further supports this malicious intent.

Heuristics 5

  • 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 JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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
    • http://aasoftballclub.com/uploads/1/3/0/5/130589214/269384.pdf
    • http://fidejo.sacocompany.net/uploads/2020/01/27/5020cde5245427.pdf
    • http://sherylpreston.com/uploads/1/3/0/5/130550846/3705675.pdf
    • http://autocivilka.site/uploads/2020/01/29/fakumawawaxorev.pdf
    • http://msbrownenglishclass.weebly.com/uploads/1/3/0/6/130620460/mopexoxileju_lavax.pdf
    • http://wazug.womensbeatuy.net/uploads/2020/01/29/049fc05b7.pdf
    • http://theluxycloset.online/uploads/1/3/0/6/130604258/xolunamexa_fesimekekuw_nejezeb_bamavi.pdf
    • http://newmarlboroughfiber.org/uploads/1/3/0/3/130323124/3754272.pdf
    • http://til.krweb.tech/uploads/2020/01/28/ritekubadonodij.pdf
    • http://fatuj.seo-spytnik.com/uploads/2020/01/27/519cffa62af915d.pdf
    • http://augrio.ai/uploads/1/3/0/5/130539338/wabedojewuxob.pdf
    • http://mountainsportandfitness.com/uploads/1/3/0/5/130589444/tobijope-fexupijenu.pdf
    • http://stewartelementarypto.weebly.com/uploads/1/3/0/6/130604427/xufarowesopemo.pdf
    • http://mytaj-prembenefits.com/uploads/1/3/0/6/130640109/4193f4.pdf
    • http://mattsamberg.com/uploads/1/3/0/4/130436431/2319515.pdf
    • https://genitotofifig.weebly.com/uploads/1/3/0/2/130288594/6746218.pdf
    • http://miracleinabucket.com/uploads/1/3/0/4/130476885/130476885.html#7-+pdf+split+merge+full

Extracted artifacts 2

Files carved from inside the sample during analysis.

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

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