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rusfolder_downloader.exe

LLC

The application rusfolder_downloader.exe by LLC has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a setup program which is used to install the application. The file has been seen being downloaded from adqkq31ldf8bzws.epik-tee.ru.
Publisher:
LLC   (signed and verified)

Version:
1.0.0.0

MD5:
7cdac5557a075a019fda7a017f83ba57

SHA-1:
394b11c49caaa32789ee833415d0785664813987

SHA-256:
4a61cd18c15b8df8f1a222419873260e67280447110a3fc143c40bb5b7a1acd4

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:
11/1/2024 7:24:40 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Amonitize
16.7.14.8

File size:
3.7 MB (3,900,128 bytes)

Product version:
1.0.0.0

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\downloads\rusfolder_downloader.exe

Digital Signature
Signed by:
LLC

Authority:
COMODO CA Limited

Valid from:
6/5/2015 3:00:00 AM

Valid to:
6/5/2016 2:59:59 AM

Subject:
CN="LLC ""LK-SOFT""", O="LLC ""LK-SOFT""", STREET="Bud. 5 kv. 5, prospekt Lenina", L=Mykolayiv, PostalCode=54000, C=UA

Issuer:
CN=COMODO RSA Code Signing CA, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
087CF3B46C46079826F87D89071E5E30

File PE Metadata
Compilation timestamp:
6/20/1992 1:22:17 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
98304:FxgVspHgGBIpCefNeROO/JHFeckBYguXmlXg:L3tg26CY0Rp/JH5kBYrWlQ

Entry address:
0x7A88B0

Entry point:
60, BE, 00, 20, 8E, 00, 8D, BE, 00, F0, B1, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89...
 
[+]

Packer / compiler:
UPX 2.90LZMA

Code size:
2.8 MB (2,912,256 bytes)

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

http://adqkq31ldf8bzws.epik-tee.ru/VEtGUnZsaU5JdWN7InNpZCI6IjY0MTYiLCJzdWJfaWQiOiIzMjA5Mjc0Iiwicm5kMCI6ImVSY3Y5NFRWVlBBcGVXRlVVNnlTWEEiLCJ2ZXIiOiIxIiwibmFtZSI6InJ1c2ZvbGRlcl9kb3dubG9hZGVyIiwidXJsIjoiaHR0cDovL3N0ZzExLnJ1c2ZvbGRlci5jb20vZG93bmxvYWQvPzM0MTcwOTM4JnN4Q2glMkZ3a3FRaGtjc1B2N0tjbUhKSFVBN3RHd0dPdTBhMWtnYld2SGpINkkwZTd1eEswTzgyUVgyV0c2QnNCSFglMkZPU011eVBTd0Rpa2xTSEpNcmlhNUJDNzJOWE9mME0maW5zdGFsbG1vbnN0ZXI9MSIsInR5cGUiOiJpZm9sZGVyIiwic2l6ZSI6IjE3NTY2OTE3In0,

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