Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f54dd2c3c685716…

MALICIOUS

PDF

34.6 KB Authoring application: Smallpdf Desktop
MD5: c5a1491957dc20660ee0bfbc4a5a179a SHA-1: ee7208fc84f1badc768635c489f6c095f68cea93 SHA-256: 7f54dd2c3c685716b6d4c6d4cb864df5f99019373453150f8ac5ecdc1fc7b4a4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The document contains a large number of embedded URLs pointing to external PDF files, suggesting a link farm or a distribution mechanism for further malicious content. The ML classifier also assigned a high probability of maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://nrttourscentre.com/uploads/1/3/0/4/130435624/4868439.pdf
    • http://bergencountyfieldhockey.com/uploads/1/3/0/6/130604633/kikadoxis.pdf
    • http://dur.mediaprojethaiti.org/uploads/2020/01/28/mifekulivuzufeg.pdf
    • http://montgomerytattoos.com/uploads/1/3/0/5/130551750/1814068.pdf
    • http://excelapp365.com/uploads/1/3/0/3/130324004/zizaxajid.pdf
    • http://seanlenhartnarrates.com/uploads/1/3/0/3/130313158/devib-pogoroxalope-xipaserus.pdf
    • http://bearsversusbabiesgame.org/uploads/1/3/0/3/130313098/2f8480be69f.pdf
    • http://getleanin21.com/uploads/1/3/0/4/130477605/pupasigumivabi-tipekukiwuperi.pdf
    • http://amckbc.com/uploads/1/3/0/5/130589354/2537249.pdf
    • http://soildsurfacewarehouse.com/uploads/1/3/0/4/130476471/pozenawiwanibupopu.pdf
    • http://citizenimmigrant.com/uploads/1/3/0/6/130621829/sepawumujemoj.pdf
    • http://sweetestdreams.org/uploads/1/3/0/7/130776213/130776213.html#bosch+r10+spark+plug+cross+reference+to+champion

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000132b.bin
aeef1043c4544a31398c5a3b13a7ba1cdfafb4e765b40b6aa5795a751c766eaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x132B 8268 bytes

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