Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d853203a6db90a5…

MALICIOUS

PDF

253.9 KB Created: 2017-08-24 09:02:14 +00:00 Authoring application: Microsoft® Word 2016 (via www.ilovepdf.com)
MD5: 6c4cc33512af431618d82f8b1fecbc9e SHA-1: 3177c51142a9511f6ac4f3a3d3bc611fe0f5599f SHA-256: 1d853203a6db90a58c9e67d0a16953072ca8f105b578d36fe5a67cceb0bd992f
82 Risk Score

Malware Insights

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

The PDF employs an image-only lure, a common tactic to trick users into interacting with a hidden action trigger. ClamAV identified this file as Pdf.Dropper.Agent-7351466-0, indicating it functions as a dropper. The embedded URL points to a Dropbox link, which is often used to host and distribute secondary payloads.

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7351466-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7351466-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 1 text block(s), carries a click-outward action, and is only 253 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://www.dropbox.com/s/52thpf8q738wtnd/PDF.Order%24P.O4410.pdf.z?dl=1

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000060f.bin
3919491c16b6921682e0e7c056c55189829f97da5c68f90c415a2a464cb19c21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60F 329128 bytes
font_01_sfnt_off000224ad.bin
4eac1e8270fbbaf58e2f2bd6bcb7ff3cc211528cc4fd40a4a8224ab00627a346		 pdf-font-stream PDF embedded font (sfnt) at offset 0x224AD 30428 bytes

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