Malicious PDF — malware analysis report

Static analysis result for SHA-256 726a213f09938051…

MALICIOUS

PDF

42.9 KB Authoring application: Pdftk
MD5: beececf5c7534ab1fa63c274111c7a01 SHA-1: 0cb92103c5578dd9fabcac282a0e6a6cdbc5353f SHA-256: 726a213f099380510c882a7f2b8ec2f6749b095836dfece3ac9ac79aefb62d50
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and exhibits a large number of external links, indicating a likely phishing or SEO spam campaign. The embedded URLs suggest an attempt to redirect users to malicious content or download further payloads. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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 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://xad.rusdosug-24love.fun/uploads/2020/01/28/jifelekapesex.pdf
    • http://novellaproposals.com/uploads/1/3/0/5/130540072/1151146.pdf
    • http://milwaukeetoireland.com/uploads/1/3/0/6/130639468/gujexuwirusim.pdf
    • http://bigredhen.org/uploads/1/3/0/6/130604918/4117476.pdf
    • http://camplakeoutfitters.com/uploads/1/3/0/4/130483153/ruweja.pdf
    • http://nebraskatowshow.com/uploads/1/3/0/4/130489434/32cd83c5e8049.pdf
    • http://capoeirabayonne.com/uploads/1/3/0/5/130588757/godidawasusufu.pdf
    • http://lilianbeautycenterspa.com/uploads/1/3/0/6/130639600/rodokelovox.pdf
    • http://athleteinnovation.com/uploads/1/3/0/3/130379398/bfb2fa916.pdf
    • http://alexcog.org/uploads/1/3/0/3/130379295/4940476.pdf
    • http://thesingbabysingshow.com/uploads/1/3/0/6/130639836/130639836.html#rupinder+gandhi+the+gangster+song
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001277.bin
9abf1c3dbd21a4c8ad1a094e92b173c1bfaa251fcb2903797babe595fe675e3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1277 8468 bytes
font_01_sfnt_off0000614c.bin
b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211		 pdf-font-stream PDF embedded font (sfnt) at offset 0x614C 16036 bytes

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