Malicious PDF — malware analysis report

Static analysis result for SHA-256 149a9985c312562d…

MALICIOUS

PDF

38.3 KB Authoring application: Serif PagePlus
MD5: 1d9c641302f65da4dd5561a8feac8867 SHA-1: fd3eae896f36634586efcff2c1635c0fa9165277 SHA-256: 149a9985c312562dca7a2d5a3ff9241b433213f04cea77066815d9aab0a59329
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to other PDF files, masquerading as shipping rate information. This technique is commonly used to distribute malware or lead users to phishing sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution via the linked PDFs.

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://jillunikel.net/uploads/1/3/0/6/130605186/sekekedugupirekit.pdf
    • http://134thestrand.com/uploads/1/3/0/3/130313000/bevinini_morul.pdf
    • http://britishhighcommission.net/uploads/1/3/0/3/130323425/4619777.pdf
    • http://viplimologistic.com/uploads/1/3/0/6/130639971/getuv_vufosodulexobil_ludaluj.pdf
    • http://crowdtrends.com/uploads/1/3/0/2/130274305/tusawatupajuzo_tozemitigagaz_finifujasolejax.pdf
    • http://hollyknoxrhame.com/uploads/1/3/0/7/130775866/lulibabate.pdf
    • http://experiencetrailhead.com/uploads/1/3/0/7/130740597/4153020.pdf
    • http://chesterfieldcardiaccare.org/uploads/1/3/0/4/130476161/larabubadesatu_fizesadinufuma.pdf
    • http://www.sza-spa.com/uploads/1/3/0/8/130813094/6dad6.pdf
    • http://gsfx.org/uploads/1/3/0/5/130550657/4eee15f98fcc4c.pdf
    • http://compostthat.com/uploads/1/3/0/5/130588459/wenogotovenuxuv.pdf
    • http://annpiquette.com/uploads/1/3/0/7/130739211/eb7f42.pdf
    • http://waldwickdems.com/uploads/1/3/0/8/130874045/35b1a2e637.pdf
    • http://healthydependency.com/uploads/1/3/0/3/130323515/cddb3041db72.pdf
    • http://host113.carmichaelnl.com/uploads/1/3/0/4/130476413/130476413.html#canada+post+shipping+rates+for+books

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000038f0.bin
1120763b75503ff016b64697ea785cf60f32326b4c5924a5cfb19b966e05b8f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x38F0 8936 bytes

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