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teraterm-4.84.exe

Tera Term

Innovative Systems LLC

The application teraterm-4.84.exe by Innovative Systems has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from lms.elearning.edu.sa and multiple other hosts.
Publisher:
Innovative Systems LLC  (signed and verified)

Product:
Tera Term

Version:
1.0.0.0

MD5:
e1d683fccf406087dc0c02330ab4815e

SHA-1:
59f1c4bc6d8ebc9bd1c3ea7a8a9f2f5cbd2be6a4

SHA-256:
6c51b7c43519ce9d6bb1c1649ec8b7eb28a31dc141a6f199343632dbc7903b3f

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
5/1/2024 1:49:21 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Innovati.Installer (M)
16.6.10.19

File size:
496.5 KB (508,384 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\teraterm-4.84.exe

Digital Signature
Signed by:
Innovative Systems LLC

Authority:
Thawte, Inc.

Valid from:
9/19/2014 3:00:00 AM

Valid to:
9/20/2015 2:59:59 AM

Subject:
CN=Innovative Systems LLC, O=Innovative Systems LLC, L=Dnepropetrovsk, S=Dnepropetrovska, C=UA

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
09A91C40EAE34E72CD975B0B218AE4BA

File PE Metadata
Compilation timestamp:
5/20/2013 2:52:48 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:kQHSvfp2R3g9ElhAUDa1B9cWf7Oq9Prud1S6aKrs:VU2cElhAN1ByWPqDSh

Entry address:
0x331F

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, 30, 92, 40, 00, 89, 6C, 24, 14, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, BC, 70, 40, 00, 55, FF, 15, AC, 72, 40, 00, 6A, 08, A3, D8, 7A, 7A, 00, E8, A8, 2E, 00, 00, A3, 24, 7A, 7A, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, D0, EE, 79, 00, FF, 15, 7C, 71, 40, 00, 68, 7C, 93, 40, 00, 68, 20, 6A, 7A, 00, E8, 13, 2B, 00, 00, FF, 15, 34, 71, 40, 00, BB, 00, 20, 7B, 00, 50, 53, E8, 01, 2B, 00, 00...
 
[+]

Entropy:
7.8584

Packer / compiler:
Nullsoft install system v2.x

Code size:
24 KB (24,576 bytes)

The file teraterm-4.84.exe has been seen being distributed by the following 3 URLs.

https://lms.elearning.edu.sa/bbcswebdav/.../xid-2369465_1?globalNavigation=false

https://lms.elearning.edu.sa/bbcswebdav/.../xid-2388782_1?globalNavigation=false

https://lms.elearning.edu.sa/bbcswebdav/.../xid-1667386_1?globalNavigation=false

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