File name:

Bifrost RAT 1.2.1.rar.zip

Full analysis: https://app.any.run/tasks/7fc6b8a9-e4b5-4fcb-a73a-a2e6fab18946
Verdict: Malicious activity
Threats:

Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links.

Analysis date: July 07, 2025, 23:55:30
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
arch-exec
arch-doc
bifrost
rat
Indicators:
MIME: application/zip
File info: Zip archive data, at least v5.1 to extract, compression method=AES Encrypted
MD5:

8A187BAA4AD59B4D854F5F609A53D22A

SHA1:

8D5BD52C5DC4816310674697D60670A6A9E2366F

SHA256:

CA374555E8B4D6D808C6169B197BC08DEF372764826B631AA0E5E57F70A170AE

SSDEEP:

24576:B4cQTDgf7xal6lzgwqBsSwFaZxUJjHe3YNd61TM3M+Fbr720+mzG3SVY:B4cQTDgf7xal6lzgwqBfwFaZxUJjHe3n

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • Generic archive extractor

      • WinRAR.exe (PID: 2784)
    • BIFROST mutex has been found

      • Bifrost.exe (PID: 3080)
      • Bifrost.exe (PID: 4048)
  • SUSPICIOUS

    • Reads the Internet Settings

      • Bifrost.exe (PID: 3080)
      • Bifrost.exe (PID: 4048)
  • INFO

    • The sample compiled with english language support

      • WinRAR.exe (PID: 2784)
      • WinRAR.exe (PID: 2856)
    • Manual execution by a user

      • WinRAR.exe (PID: 2856)
      • Bifrost.exe (PID: 3080)
      • Bifrost.exe (PID: 4048)
      • Bifrost.exe (PID: 4056)
    • Executable content was dropped or overwritten

      • WinRAR.exe (PID: 2856)
    • Reads the computer name

      • Bifrost.exe (PID: 3080)
      • Bifrost.exe (PID: 4048)
    • Reads the machine GUID from the registry

      • Bifrost.exe (PID: 3080)
      • Bifrost.exe (PID: 4048)
    • Checks supported languages

      • Bifrost.exe (PID: 3080)
      • Bifrost.exe (PID: 4048)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.zip | ZIP compressed archive (100)

EXIF

ZIP

ZipRequiredVersion: 51
ZipBitFlag: 0x0009
ZipCompression: Unknown (99)
ZipModifyDate: 2025:07:07 23:54:52
ZipCRC: 0xdade48b2
ZipCompressedSize: 688855
ZipUncompressedSize: 688691
ZipFileName: Bifrost RAT 1.2.1.rar
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
45
Monitored processes
5
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start winrar.exe no specs winrar.exe #BIFROST bifrost.exe bifrost.exe no specs #BIFROST bifrost.exe

Process information

PID
CMD
Path
Indicators
Parent process
2784"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\Desktop\Bifrost RAT 1.2.1.rar.zip"C:\Program Files\WinRAR\WinRAR.exeexplorer.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Version:
5.91.0
Modules
Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\comdlg32.dll
2856"C:\Program Files\WinRAR\WinRAR.exe" x -iext -ow -ver -- "C:\Users\admin\Desktop\Bifrost RAT 1.2.1.rar" "?\"C:\Program Files\WinRAR\WinRAR.exe
explorer.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.91.0
Modules
Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\comdlg32.dll
3080"C:\Users\admin\Desktop\Bifrost RAT 1.2.1\Bifrost.exe" C:\Users\admin\Desktop\Bifrost RAT 1.2.1\Bifrost.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Bifrost 1.2.1
Exit code:
20
Version:
1, 2, 1, 0
Modules
Images
c:\users\admin\desktop\bifrost rat 1.2.1\bifrost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\imm32.dll
4048"C:\Users\admin\Desktop\Bifrost RAT 1.2.1\Bifrost.exe" C:\Users\admin\Desktop\Bifrost RAT 1.2.1\Bifrost.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Description:
Bifrost 1.2.1
Version:
1, 2, 1, 0
Modules
Images
c:\users\admin\desktop\bifrost rat 1.2.1\bifrost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\apphelp.dll
4056"C:\Users\admin\Desktop\Bifrost RAT 1.2.1\Bifrost.exe" C:\Users\admin\Desktop\Bifrost RAT 1.2.1\Bifrost.exeexplorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Bifrost 1.2.1
Exit code:
3221226540
Version:
1, 2, 1, 0
Modules
Images
c:\users\admin\desktop\bifrost rat 1.2.1\bifrost.exe
c:\windows\system32\ntdll.dll
Total events
15 837
Read events
15 694
Write events
119
Delete events
24

Modification events

(PID) Process:(2784) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:writeName:ShellExtBMP
Value:
(PID) Process:(2784) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:writeName:ShellExtIcon
Value:
(PID) Process:(2784) WinRAR.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2784) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:3
Value:
C:\Users\admin\Desktop\Win7-KB3191566-x86.zip
(PID) Process:(2784) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:2
Value:
C:\Users\admin\Desktop\curl-8.5.0_1-win32-mingw.zip
(PID) Process:(2784) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:1
Value:
C:\Users\admin\Desktop\omni_23_10_2024_.zip
(PID) Process:(2784) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:0
Value:
C:\Users\admin\Desktop\Bifrost RAT 1.2.1.rar.zip
(PID) Process:(2784) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:name
Value:
120
(PID) Process:(2784) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:size
Value:
80
(PID) Process:(2784) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:type
Value:
120
Executable files
1
Suspicious files
1
Text files
2
Unknown types
0

Dropped files

PID
Process
Filename
Type
2784WinRAR.exeC:\Users\admin\Desktop\Bifrost RAT 1.2.1.rarcompressed
MD5:455ADEF9C5AAB158D63B0415F1934E7A
SHA256:5D6EDAA06121C4273BED7F3292E0670F2755DC87D95A2B7F78C2B89C53A47876
2856WinRAR.exeC:\Users\admin\Desktop\Bifrost RAT 1.2.1\readme.txttext
MD5:3415CF2D9CAB561590250FEEFB185A74
SHA256:CB380169FED62F06793D052554B7A5BF4B6BAFA530175C0675393E6CBE0DB082
2856WinRAR.exeC:\Users\admin\Desktop\Bifrost RAT 1.2.1\Bifrost.exeexecutable
MD5:DF396B39EFD0587AC3A3C3E870AD0479
SHA256:01B08C9188E3714A7C8F3C1AB21D237D979A5CAAD9F6A1FBDB12A9430FC99337
2856WinRAR.exeC:\Users\admin\Desktop\Bifrost RAT 1.2.1\eula.txttext
MD5:B9A11D55A323DA026B0ABE444A15DE3D
SHA256:57A2B333EF2295E9CC0A1A702AB43764435BAEE80AF5EA7B385919B636C281D0
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
5
DNS requests
1
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4
System
192.168.100.255:137
whitelisted
224.0.0.252:5355
whitelisted
4
System
192.168.100.255:138
whitelisted
1080
svchost.exe
224.0.0.252:5355
whitelisted

DNS requests

Domain
IP
Reputation
google.com
  • 142.250.184.238
whitelisted

Threats

No threats detected
Process
Message
Bifrost.exe
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Bifrost.exe
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Bifrost.exe
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Bifrost.exe
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Bifrost.exe
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Bifrost.exe
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Bifrost.exe
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Bifrost.exe
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Bifrost.exe
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Bifrost.exe
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