Malicious PDF — malware analysis report

Static analysis result for SHA-256 90684c8b4c184eeb…

MALICIOUS

PDF

37.3 KB Authoring application: ImageMagick
MD5: 5b68ea94a99ddb5354a27e7708f75ed7 SHA-1: 6e7a68f0f4389329b8c3dde558cba7a5be3f85fc SHA-256: 90684c8b4c184eeb66157b641bd8e134138ebeb2052564f671134e46d6db8526
128 Risk Score

Malware Insights

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

The PDF file contains a mass link farm pointing to external PDF files, a technique often used for SEO poisoning or distributing malicious content. ClamAV detected this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or malware distribution intent. The presence of a visual download button further supports a lure-based attack pattern.

Heuristics 4

  • 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
  • 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://wd-consult.com/uploads/1/3/0/5/130550721/60ba0.pdf
    • http://fobefi.cafe-oldbaku.ru/uploads/2020/01/28/fikewumepona_tepuzifodezid.pdf
    • http://coyraid67.com/uploads/1/3/0/5/130588393/vovipuribok_xuseduxeno_pipokojika.pdf
    • http://bennyjmusic.com/uploads/1/3/0/5/130588754/b63fc6.pdf
    • http://stylogentlemensweekend.com/uploads/1/3/0/6/130620399/5d3704.pdf
    • http://misssoutheastpageantry.us/uploads/1/3/0/4/130435561/130435561.html#cabin+fever+3+full+movie++300mb

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000123e.bin
a6254bf68f2469f84faa15ec04bad1f0ad4365ef8cdad4a42f96251f14791317		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123E 7732 bytes
font_01_sfnt_off00004a7d.bin
b5cf3a019e7f447de2deec23e5e78acb80ced0a0a03b407a1c65e57d354528d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A7D 16240 bytes

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