Malicious PDF — malware analysis report

Static analysis result for SHA-256 debeb2e33a6c4741…

MALICIOUS

PDF

42.0 KB Authoring application: PDFedit
MD5: e35d9ce80008cc3513b59a81c04baef3 SHA-1: 462ae2ade98de3cf2aad3b99f1bfa3b7376f6e70 SHA-256: debeb2e33a6c4741131008a1bc8006565d9c263c995c45e42ec3f2303436b0a1
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a PDF link farm and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The embedded document body contains a large number of URLs, all pointing to external PDF files hosted on various domains. This strongly suggests a phishing or redirection campaign designed to lead the user to malicious content.

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://casahabana56.com/uploads/1/3/0/5/130538838/zigofigifalakomu.pdf
    • http://vegasjunkmovers.com/uploads/1/3/0/6/130604524/1239183.pdf
    • http://labviewstudent.net/uploads/1/3/0/2/130270738/wozemabepaxet-sosevuwafovuza.pdf
    • http://roj.lulacrib.com/uploads/2020/01/28/7981716.pdf
    • http://determinedtolearn.net/uploads/1/3/0/4/130488530/vizun-fudibimamoxiret-piwawemugo-libig.pdf
    • http://barringtonmasons.com/uploads/1/3/0/4/130435872/79d6042.pdf
    • http://bsfastigheter.se/uploads/1/3/0/6/130639129/87bc4fa.pdf
    • http://spwhoa.com/uploads/1/3/0/4/130489830/dojuga_suxapugugave.pdf
    • http://eterprai.com/uploads/1/3/0/6/130639145/gaseribogejufasezut.pdf
    • http://mrsmichelebrown.com/uploads/1/3/0/7/130775493/lulivedefononan-waxikomosewedo-dasez-vijomes.pdf
    • http://morrisboydphotography.com/uploads/1/3/0/4/130435701/lanul.pdf
    • http://independentadultcarehomeassociation.com/uploads/1/3/0/6/130604287/9859906.pdf
    • http://clucktruckportland.com/uploads/1/3/0/2/130287808/130287808.html#gtu+de+project+report

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000136d.bin
7b7bcc49ecbedf52e635b12084e45a9847b6903160edd6768e632d17e910405f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x136D 8488 bytes

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