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nsdb9f.tmp

The file nsdb9f.tmp has been detected as a potentially unwanted program by 6 anti-malware scanners. The file has been seen being downloaded from d1xd06pkl5614k.cloudfront.net. While running, it connects to the Internet address server-52-85-63-169.lhr50.r.cloudfront.net on port 80 using the HTTP protocol.
MD5:
ea3079c385c5f5b033d6f7c6d1101d79

SHA-1:
d91e29502d92e7ef08c5fa99f1542519b7270ef6

SHA-256:
c97663a81cb3fa239ba5cd8c34469ea6594865f5e4656b07ae99c1d8a9e29b39

Scanner detections:
6 / 68

Status:
Potentially unwanted

Analysis date:
5/1/2024 5:40:04 AM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Adware.Win32.Imali
4.0.3.151026

ESET NOD32
Win32/Adware.Imali.F application
7.0.302.0

Kaspersky
HEUR:Trojan-Downloader.Win32.Generic
14.0.0.1217

McAfee
PUP-FZQ
5600.6600

Reason Heuristics
Threat.Win.Reputation.IMP
15.11.6.14

Rising Antivirus
PE:Malware.RDM.31!5.25[F1]
23.00.65.151024

File size:
292.5 KB (299,520 bytes)

Common path:
C:\users\{user}\appdata\local\temp\nsdb9f.tmp

File PE Metadata
Compilation timestamp:
10/26/2015 5:55:41 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:nDTd9txyW7E0qOXbGEbmh/s2Kv0PA7fU2KTtjWhX8McVOKHlUvpCc+L0nvqA:nDTzCb0qOXtbmZsVv0o1EtjzCv5vqA

Entry address:
0x120AD

Entry point:
E8, 37, 71, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, D4, 23, 42, 00, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, B8, 20, 42, 00, C9, C2, 08, 00, FF, 35, C0, D1, 42, 00, FF, 15, 8C, 20, 42, 00, 85, C0, 74, 02, FF, D0, 6A, 19, E8, 28, 69, 00, 00, 6A, 01, 6A, 00, E8, 3B, 28, 00, 00, 83, C4, 0C, E9, 00, 28, 00, 00...
 
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Code size:
129.5 KB (132,608 bytes)

The file nsdb9f.tmp has been seen being distributed by the following URL.

http://d1xd06pkl5614k.cloudfront.net/prepreinstaller_win.exe

The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):
Connects to server-52-85-63-169.lhr50.r.cloudfront.net  (52.85.63.169:80)

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