Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9006f908c80589c…

MALICIOUS

PDF

47.9 KB Authoring application: Smallpdf Desktop
MD5: 1a34851cc270ac858b839a692e8c2b2c SHA-1: 6fb4bbf9791585ec61f4e4df7525d8910fde8525 SHA-256: b9006f908c80589c9149311f0439e462a489155eea253b738c82ca03e496039f
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for malicious content, as flagged by the PDF_SEO_LINK_FARM heuristic and ClamAV detection. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was heavily truncated and unreadable, preventing a more specific analysis of the lure.

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://ateliermarcantoine.com/uploads/1/3/0/4/130476921/gudape.pdf
    • http://inscienceitrust.net/uploads/1/3/0/3/130313784/dekujefaxonolip.pdf
    • http://rpgmedicalltd.net/uploads/1/3/0/8/130814863/e0733433720.pdf
    • http://micheldumont.ca/uploads/1/3/0/4/130477952/desotekidusotedo.pdf
    • http://manbookhandbook.com/uploads/1/3/0/2/130287229/6535557.pdf
    • http://delightyourspirit.com/uploads/1/3/0/4/130435811/069f4a2.pdf
    • http://exigent-surgery-md.com/uploads/1/3/0/4/130488543/bc943bbbef5d62.pdf
    • http://marketingvampire.com/uploads/1/3/0/5/130550997/mavewukobivonamasili.pdf
    • http://5foot1ninja.com/uploads/1/3/0/7/130739779/50336daede2.pdf
    • http://aleonor1to1.com/uploads/1/3/0/7/130775400/9105418.pdf
    • http://1cafedumarche.ch/uploads/1/3/0/7/130740082/2413583.pdf
    • http://typo3-studio.com/uploads/1/3/0/5/130589231/zeludit-zutupamo-mewonafagop.pdf
    • http://msxtech.net/uploads/1/3/0/4/130477039/riluxumusib-revojuzexas.pdf
    • http://atmemorylane.net/uploads/1/3/0/7/130775537/dedaxutubelelub.pdf
    • http://theacneandskincareclinic.com/uploads/1/3/0/5/130540214/gewemadazena_lafuvenaneja_xaviwe_sedurevedu.pdf
    • http://adsl-63-204-18-27.benefitplans.org/uploads/1/3/0/6/130639815/130639815.html#bearing+design+pdf
    • http://marketingvampire.com/uploa

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040f6.bin
611b4a16b41a927328814247544712161d4a1200cce8aecc93dfc09e1466a86f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40F6 16172 bytes
font_01_sfnt_off000055b0.bin
7df88723569d4193f530fe437fb919d713328a77de93ba1b94bee14e62ba1f6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B0 1712 bytes
font_02_sfnt_off00006057.bin
b0a35853c5b3edd16df931209b797241aec233ed4a088d327e2cb730c570c182		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6057 8128 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.