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nsyc37c.tmp

The file nsyc37c.tmp has been detected as a potentially unwanted program by 11 anti-malware scanners. The program is a setup application that uses the Inno Setup installer, however the file is not signed with an authenticode signature from a trusted source. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. While running, it connects to the Internet address server-54-192-55-29.jfk6.r.cloudfront.net on port 80 using the HTTP protocol.
MD5:
4911e89d475902a1fb760a218a455780

SHA-1:
da6de2d3bbceafa5341c1dcdf78c5c2f06ca8b49

SHA-256:
bc02381b36fd5d4c51ee27448e1a9c932319570355fc13a8753b684845a6344d

Scanner detections:
11 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Analysis date:
4/19/2024 1:31:40 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
PUA/InstallCore.Gen7
8.3.1.6

avast!
Malware-gen
150602-1

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.15620

Clam AntiVirus
Win.Adware.Installcore-673
0.98/20585

Dr.Web
Trojan.Packed.25266
9.0.1.05190

ESET NOD32
Win32/InstallCore.PK potentially unwanted application
7.0.302.0

F-Prot
W32/A-df0bbe51
v6.4.7.1.166

Malwarebytes
PUP.Optional.InstallCore.A
v2015.06.20.12

NANO AntiVirus
Riskware.Win32.InstallCore.dqfxxd
0.30.24.2086

Vba32 AntiVirus
Malware-Cryptor.InstallCore.gen
3.12.26.4

VIPRE Antivirus
Trojan.Win32.Generic
41284

File size:
579.3 KB (593,184 bytes)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\nsyc37c.tmp

File PE Metadata
Compilation timestamp:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:kTFawOWvy+50fYVZrRr1atvyXJIZ+0RNoSZ0Y6SWrHVd5HgfCG2RiLf:kTF9OQKfuh35IAEN50RSWjHECo

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.8597

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

TCP (HTTP):
Connects to server-54-192-55-29.jfk6.r.cloudfront.net  (54.192.55.29:80)

TCP (HTTP):
Connects to ec2-52-10-189-255.us-west-2.compute.amazonaws.com  (52.10.189.255:80)

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