Malicious PDF — malware analysis report

Static analysis result for SHA-256 533d47fff5159459…

MALICIOUS

PDF

35.1 KB Authoring application: Poppler-utils
MD5: 319dea495942f4b57ead18d96dca8cb7 SHA-1: f6957645fab7a0bf7f6e46c476c92f25a4428184 SHA-256: 533d47fff5159459da7a1366a4bb7f3244d87f2d0f95664fec51db7f450927b8
150 Risk Score

Malware Insights

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

The PDF was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a machine learning classifier indicated a high probability of maliciousness. The critical heuristic 'PDF_SEO_LINK_FARM' indicates the presence of a mass external PDF link farm, with the first URL being http://davidmunoz.org/uploads/1/3/0/7/130776647/c890a22.pdf. This suggests the PDF's primary function is to act as a lure, redirecting users to other malicious PDF documents hosted on various domains.

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://davidmunoz.org/uploads/1/3/0/7/130776647/c890a22.pdf
    • http://www.girlsgooutdoors.com/uploads/1/3/0/6/130604049/cc6f336.pdf
    • http://www.md2xdt2.com/uploads/1/3/0/6/130640013/fa3a37c8b2.pdf
    • http://myvegandish.com/uploads/1/3/0/7/130740592/xevagegoxokep-getumavoz.pdf
    • http://relationshipsartcollection.com/uploads/1/3/0/7/130739059/wodud.pdf
    • http://coalitionagainsthumantrafficking-northernaz.org/uploads/1/3/0/6/130639770/3942239.pdf
    • http://www.elitemaintenancerepair.com/uploads/1/3/0/6/130604319/8580075.pdf
    • http://syncopatedance.com/uploads/1/3/0/6/130604582/navafikozalew.pdf
    • http://sbga57.sbgame.net/uploads/1/3/0/5/130589199/6ab6243c009.pdf
    • http://nandamay.com/uploads/1/3/0/4/130476065/4407121.pdf
    • http://ataconstruction.trustabiz.com/uploads/1/3/0/6/130639983/sanunira.pdf
    • http://cathode61.pleasingfood.com/uploads/1/3/0/7/130739633/130739633.html#leg+stretches+for+patellar+tendonitis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033d7.bin
b41a1abf361e686b04d14ae137311eb53e5676dc6593bb86eac1072d313e92cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33D7 7300 bytes

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