Malicious PDF — malware analysis report

Static analysis result for SHA-256 413d0c896a3c30fb…

MALICIOUS

PDF

36.2 KB Authoring application: Adobe PDF Library 9.0
MD5: 55481c0dba270193411011bd6ffa5662 SHA-1: 41e917f3b6eefdb57a52101a74ad1a7651c818f9 SHA-256: 413d0c896a3c30fbe1a9760b0d3eeb926c65598bddd4241d5842bcf12ff4fdaa
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This technique, identified as PDF_SEO_LINK_FARM, is often used to distribute malicious content or redirect users to phishing sites. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic redirection intent. No scripts were extracted from this sample.

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://kupetspinkinvitational.com/uploads/1/3/0/7/130739029/nunigiva.pdf
    • http://simplylavishskin.com/uploads/1/3/0/7/130738769/74820e2d6b8c4.pdf
    • http://livoniagymnasticsteam.com/uploads/1/3/0/5/130550835/luzediluzinesebujuko.pdf
    • http://nexgenmanagement.org/uploads/1/3/0/7/130738578/dopufuxadoxari.pdf
    • http://aaronsherbs.com/uploads/1/3/0/2/130289632/tiwete.pdf
    • http://donotpanicitsorganic.com/uploads/1/3/0/3/130379272/7357584.pdf
    • http://brandonotes.net/uploads/1/3/0/5/130589279/3f5d1.pdf
    • http://usagaslogs.com/uploads/1/3/0/5/130588164/6091128.pdf
    • http://www.samonephotography.com/uploads/1/3/0/9/130969065/xoreje.pdf
    • http://soundpromusic.com/uploads/1/3/0/4/130488227/4527929.pdf
    • http://nsuokchoirs.com/uploads/1/3/0/7/130740316/4f36dfb.pdf
    • http://www.ericsyvertson.com/uploads/1/3/0/6/130639757/03cbf65747c.pdf
    • http://webmail.carnielittlefield.com/uploads/1/3/0/5/130589427/somabuzoxozojub.pdf
    • http://therealfrobac.co.uk/uploads/1/3/0/2/130287302/8699111.pdf
    • http://mail.officespacestatecollege.com/uploads/1/3/0/4/130435701/3612448.pdf
    • http://homestagingprofessionaltraining.com/uploads/1/3/0/2/130272554/130272554.html#new+sat+reading+comprehension+practice+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032ec.bin
b666235fe390aa7ae2700bf94d5bb1dd840049bf51030e05939ed00a933f1e56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32EC 7904 bytes

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