appshat.exe

Sailor Project

This potentially unwanted Internet browser extension is built upon and distributed using the free Crossrider platform and will deliver advertisements to the web browser in various formats such as banner, text hyper-links, inline text and transitional ads. The application appshat.exe by Sailor Project 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 Nullsoft Install System installer. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from dt3j8jg8ei6zr.cloudfront.net. It is part of the Brightcircle group of web-extensions that inject advertisements in the browser.
Publisher:
Sailor Project  (signed and verified)

Description:
Ubuwtcc

Version:
17.0.21.15

MD5:
5bc3be1fe750fd4c4a7c7be2fd6bdd43

SHA-1:
4d1715e7de4e1b55a7811ab47a229d27611bfc3a

SHA-256:
35a137b3688857fdf107d033fb5ceab9d4a3264e24eb5834ba3df2d90e6e99cb

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:
5/7/2024 8:03:59 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Brightcircle.SailorProject.Installer (M)
15.10.11.14

File size:
9.1 MB (9,509,008 bytes)

File type:
Executable application (Win64 EXE)

Installer:
Nullsoft Install System

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\appshat.exe

Digital Signature
Signed by:

Subject:
CN=Sailor Project, O=Sailor Project, STREET=Athinodorou 3, STREET=Dasoupoli Strovolos, L=Nicosia, S=Cyprus, PostalCode=2025, C=CY

Serial number:
47C5F145C734CD3D086C0A102176F0A1

File PE Metadata
OS bitness:
Win64

CTPH (ssdeep):
196608:kUNuR+4AaqdieZr7xRQi0APA3w5jUgL9cN7rmLgX/cAz82j:kpYdlRQmPjVL2N7jcsZ

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, AC, 01, 00, 00, FF, 15, 74, C3, 44, 00, C7, 04, 24, 01, 80, 00, 00, FF, 15, 58, C4, 44, 00, 53, C7, 04, 24, 00, 00, 00, 00, FF, 15, 98, C4, 44, 00, 56, A3, 40, 3B, 44, 00, C7, 04, 24, 08, 00, 00, 00, E8, 8D, 3B, 00, 00, A3, 9C, 3B, 44, 00, 8D, 85, 84, FE, FF, FF, 57, C7, 44, 24, 10, 00, 00, 00, 00, C7, 44, 24, 0C, 60, 01, 00, 00, 89, 44, 24, 08, C7, 44, 24, 04, 00, 00, 00, 00, C7, 04, 24, 01, B3, 40, 00, FF, 15, AC, C4, 44, 00, 83, EC, 14, C7, 44, 24, 04, 02, B3, 40, 00, C7...
 
[+]

Entropy:
7.9989  (probably packed)

The file appshat.exe has been seen being distributed by the following URL.

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