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nsk87cd.tmp

The file nsk87cd.tmp has been detected as malware by 6 anti-virus scanners. The file has been seen being downloaded from 113.171.224.246 and multiple other hosts.
MD5:
99a06e382c60647961e347c4abb49de5

SHA-1:
afb49b1ce4e313e9294a6a191f598043d95cb135

SHA-256:
8e03fb08229d766eaab0a4186c49ea2e6b18f85ae9c609cdfb692640e19308ce

Scanner detections:
6 / 68

Status:
Malware

Analysis date:
1/4/2025 11:41:29 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Dr.Web
Trojan.DownLoader18.29639
9.0.1.05190

Kaspersky
HEUR:Trojan-Downloader.Win32.Generic
14.0.0.900

Quick Heal
Downloader.Adload.016950
12.15.14.00

Reason Heuristics
PUP
16.1.6.0

Rising Antivirus
PE:Malware.RDM.34!5.28 [F]
23.00.65.151226

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.26.4

File size:
256 KB (262,144 bytes)

Common path:
C:\users\{user}\appdata\local\temp\nsk87cd.tmp

File PE Metadata
Compilation timestamp:
12/28/2015 6:43:31 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:FNTfl9fZZR5OA0/y75K1r8axwKitZec/EzY:j9Z/nw1r8axwDEzY

Entry address:
0x13A8C

Entry point:
E8, 08, 64, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, B8, 33, 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, A4, 30, 42, 00, C9, C2, 08, 00, FF, 35, A0, E1, 42, 00, FF, 15, 78, 30, 42, 00, 85, C0, 74, 02, FF, D0, 6A, 19, E8, F9, 5B, 00, 00, 6A, 01, 6A, 00, E8, 3E, 28, 00, 00, 83, C4, 0C, E9, 03, 28, 00, 00...
 
[+]

Entropy:
6.1128

Code size:
133.5 KB (136,704 bytes)

The file nsk87cd.tmp has been seen being distributed by the following 4 URLs.

http://113.171.224.246/.../prepreinstaller_win.exe

http://113.171.224.210/.../prepreinstaller_win.exe

http://113.171.224.177/.../prepreinstaller_win.exe

http://d2c05t2osze7ht.cloudfront.net/prepreinstaller_win.exe

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