Malicious PDF — malware analysis report

Static analysis result for SHA-256 315f2d9e7debb6c4…

MALICIOUS

PDF

38.5 KB Authoring application: LibreOffice
MD5: 396def02572e7f8593dd9a1798c1cf9d SHA-1: 344d53dae6b656db12b6622a98a5efc413aae613 SHA-256: 315f2d9e7debb6c4ed3314a2f47e55b623b19dc74bbd485d4bf32e42ef8ccbb8
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to other PDF files hosted on various domains. This is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted from this sample.

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://calvarydifference.com/uploads/1/3/0/4/130483660/sivobosa.pdf
    • http://workerdesigns.com/uploads/1/3/0/6/130604803/rotixolazelekolagel.pdf
    • http://rov.mskreslo.ru/uploads/2020/01/28/dedowojaxo.pdf
    • http://noahbearproduction.com/uploads/1/3/0/4/130476004/jerabomi-bivarafi-jowufaveluk-tiwosufekopil.pdf
    • http://athomedogeuthanasia.com/uploads/1/3/0/2/130289748/getokixamineg_fifeselat_pizifimivim.pdf
    • http://otherworldlyart.com/uploads/1/3/0/7/130740123/9236910.pdf
    • http://nolimitationsyouthservices.org/uploads/1/3/0/6/130620184/gidepipaf_mofon.pdf
    • http://nextanityradio.com/uploads/1/3/0/6/130639212/zivugubisipal-lunajuziwevipi.pdf
    • http://adams-aardvarks.com/uploads/1/3/0/6/130621128/ad286a4aec674.pdf
    • http://sdesworks.org/uploads/1/3/0/3/130379843/wulunuparotisogigesi.pdf
    • http://useyournoodledoodle.com/uploads/1/3/0/4/130489081/c7e4a.pdf
    • http://sweetstaysalem.com/uploads/1/3/0/5/130542853/7025305.pdf
    • http://juliaberry.org/uploads/1/3/0/3/130323190/130323190.html#passenger+let+her+go+sheet+music+guitar

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001373.bin
e6a4988fac154edccff074ef612a96a7bcfaa407fce1ec67ffea41807cd4b6e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1373 7760 bytes
font_01_sfnt_off00004e75.bin
5d7ebd720715cd86529581f1d40cc643f68465477bd430d4be5ff736bc95f798		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E75 16268 bytes

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