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onsr640b.tmp

The file onsr640b.tmp has been detected as malware by 2 anti-virus scanners. The file has been seen being downloaded from d3jydz90x0ejp8.cloudfront.net.
MD5:
777105cd8db96e8220fb0fa6ce46136f

SHA-1:
d7bccacd531800bcf961ec9e184da9b9d2767cb1

SHA-256:
994214e5ff568f6d539e27f5827fae1cb7e77c0cbed044ec8ad9f6b219a86a7a

Scanner detections:
2 / 68

Status:
Malware

Analysis date:
11/5/2024 6:50:42 AM UTC  (today)

Scan engine
Detection
Engine version

Kaspersky
UDS:DangerousObject.Multi.Generic
14.0.0.2320

Reason Heuristics
Threat.Downloader.KY
16.2.29.19

File size:
573.5 KB (587,264 bytes)

Common path:
C:\users\{user}\appdata\local\4c4c4544-1426805956-4e10-8034-b1c04f304831\onsr640b.tmp

File PE Metadata
Compilation timestamp:
3/19/2015 10:00:05 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:op407bcjJ4lXl85qIeacReavlwZCa14jzJ:op40XUJ4lVaqIe5ReaCRajt

Entry address:
0xC9B1

Entry point:
E8, FB, 60, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, 3D, E4, 0F, 43, 00, 00, 75, 18, E8, B3, 57, 00, 00, 6A, 1E, E8, FD, 55, 00, 00, 68, FF, 00, 00, 00, E8, A6, F8, FF, FF, 59, 59, 8B, 45, 08, 85, C0, 75, 01, 40, 50, 6A, 00, FF, 35, E4, 0F, 43, 00, FF, 15, 9C, 80, 42, 00, 5D, C3, 8B, FF, 55, 8B, EC, 53, 8B, 5D, 08, 83, FB, E0, 77, 6F, 56, 57, 83, 3D, E4, 0F, 43, 00, 00, 75, 18, E8, 69, 57, 00, 00, 6A, 1E, E8, B3, 55, 00, 00, 68, FF, 00, 00, 00, E8, 5C, F8, FF, FF, 59, 59, 85, DB, 74, 04, 8B, C3...
 
[+]

Entropy:
5.5949

Code size:
155 KB (158,720 bytes)

The file onsr640b.tmp has been seen being distributed by the following URL.

http://d3jydz90x0ejp8.cloudfront.net/Update_Notifier.exe

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