Malware analysis Bifrost v1.2.exe.zip Malicious activity

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File name:	Bifrost v1.2.exe.zip
Full analysis:	https://app.any.run/tasks/0ff3ba27-d4ea-43bb-8b82-54dfe8a63adf
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. Malware Trends Tracker >>>
Analysis date:	July 07, 2025, 22:04:28
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	arch-exec bifrost rat upx
Indicators:
MIME:	application/zip
File info:	Zip archive data, at least v5.1 to extract, compression method=AES Encrypted
MD5:	BBB0F0271F2857C434D2520109196D82
SHA1:	D68B0B55AE014C65A1A60247EE8ACF1D4A12CFCD
SHA256:	06A8D16D3E60FD26649B2802FBF5AE3185EC17F06EC969B53F157FE6AF119518
SSDEEP:	24576:2c49CD9cdujMFaYFfnJBF0ejSmwo0hzGzcRg2ycsUGArsPq9:2c49CpcdujMFaYFfnJBF0ejSmwo0hzGE

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.

Launch configuration

Task duration:: 300 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 240 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 11.3636.19041.0
Adobe Acrobat (64-bit) (23.001.20093)
Adobe Flash Player 32 NPAPI (32.0.0.465)
Adobe Flash Player 32 PPAPI (32.0.0.465)
CCleaner (6.20)
FileZilla 3.65.0 (3.65.0)
Google Chrome (133.0.6943.127)
Google Update Helper (1.3.36.51)
Java 8 Update 271 (64-bit) (8.0.2710.9)
Java Auto Updater (2.8.271.9)
Microsoft Edge (133.0.3065.92)
Microsoft Office Professional 2019 - de-de (16.0.16026.20146)
Microsoft Office Professional 2019 - en-us (16.0.16026.20146)
Microsoft Office Professional 2019 - es-es (16.0.16026.20146)
Microsoft Office Professional 2019 - it-it (16.0.16026.20146)
Microsoft Office Professional 2019 - ja-jp (16.0.16026.20146)
Microsoft Office Professional 2019 - ko-kr (16.0.16026.20146)
Microsoft Office Professional 2019 - pt-br (16.0.16026.20146)
Microsoft Office Professional 2019 - tr-tr (16.0.16026.20146)
Microsoft Office Professionnel 2019 - fr-fr (16.0.16026.20146)
Microsoft Office профессиональный 2019 - ru-ru (16.0.16026.20146)
Microsoft OneNote - en-us (16.0.16026.20146)
Microsoft Update Health Tools (3.74.0.0)
Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x64 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x64 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2015-2022 Redistributable (x64) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2015-2022 Redistributable (x86) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2022 X64 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X64 Minimum Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Minimum Runtime - 14.36.32532 (14.36.32532)
Mozilla Firefox (x64 en-US) (136.0)
Mozilla Maintenance Service (136.0)
Notepad++ (64-bit x64) (7.9.1)
Office 16 Click-to-Run Extensibility Component (16.0.15726.20202)
Office 16 Click-to-Run Licensing Component (16.0.16026.20146)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15928.20198)
PowerShell 7-x64 (7.3.5.0)
Update for Windows 10 for x64-based Systems (KB4023057) (2.59.0.0)
Update for Windows 10 for x64-based Systems (KB4023057) (2.63.0.0)
Update for Windows 10 for x64-based Systems (KB4480730) (2.55.0.0)
Update for Windows 10 for x64-based Systems (KB5001716) (8.93.0.0)
VLC media player (3.0.11)
WinRAR 5.91 (64-bit) (5.91.0)
Windows PC Health Check (3.6.2204.08001)

Hotfixes

Client LanguagePack Package
DotNetRollup
DotNetRollup 481
FodMetadata Package
Foundation Package
Hello Face Package
InternetExplorer Optional Package
KB5003791
KB5011048
KB5015684
KB5033052
LanguageFeatures Basic en us Package
LanguageFeatures Handwriting en us Package
LanguageFeatures OCR en us Package
LanguageFeatures Speech en us Package
LanguageFeatures TextToSpeech en us Package
MSPaint FoD Package
MediaPlayer Package
Microsoft OneCore ApplicationModel Sync Desktop FOD Package
Microsoft OneCore DirectX Database FOD Package
NetFx3 OnDemand Package
Notepad FoD Package
OpenSSH Client Package
PowerShell ISE FOD Package
Printing PMCPPC FoD Package
Printing WFS FoD Package
ProfessionalEdition
QuickAssist Package
RollupFix
ServicingStack
ServicingStack 3989
StepsRecorder Package
TabletPCMath Package
UserExperience Desktop Package
WordPad FoD Package

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MALICIOUS
- Generic archive extractor
  - WinRAR.exe (PID: 2040)
- BIFROST mutex has been found
  - Bifrost v1.2.exe (PID: 1740)
  - server.exe (PID: 4760)
  - server.exe (PID: 1636)
  - server.exe (PID: 4528)
SUSPICIOUS
- There is functionality for taking screenshot (YARA)
  - Bifrost v1.2.exe (PID: 1740)
- Executable content was dropped or overwritten
  - Bifrost v1.2.exe (PID: 1740)
INFO
- Reads the computer name
  - Bifrost v1.2.exe (PID: 1740)
- Checks supported languages
  - Bifrost v1.2.exe (PID: 1740)
  - server.exe (PID: 4760)
  - server.exe (PID: 1636)
  - server.exe (PID: 4528)
- The sample compiled with english language support
  - WinRAR.exe (PID: 2040)
- Manual execution by a user
  - Bifrost v1.2.exe (PID: 1740)
  - server.exe (PID: 1636)
  - server.exe (PID: 4528)
  - server.exe (PID: 4760)
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 2040)
- UPX packer has been detected
  - Bifrost v1.2.exe (PID: 1740)
- Creates files or folders in the user directory
  - server.exe (PID: 4760)
- Checks proxy server information
  - slui.exe (PID: 2348)
- Reads the software policy settings
  - slui.exe (PID: 2348)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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TRiD

.zip	\|	ZIP compressed archive (100)

EXIF

ZIP

ZipRequiredVersion:	51
ZipBitFlag:	0x0009
ZipCompression:	Unknown (99)
ZipModifyDate:	2025:07:07 22:02:48
ZipCRC:	0x10bae4c3
ZipCompressedSize:	577715
ZipUncompressedSize:	603648
ZipFileName:	Bifrost v1.2.exe.bin

No data.

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All screenshots are available in the full report

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Total processes

142

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

1636

"C:\Users\admin\Desktop\server.exe"

C:\Users\admin\Desktop\server.exe

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\desktop\server.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\advapi32.dll

1740

"C:\Users\admin\Desktop\Bifrost v1.2.exe"

C:\Users\admin\Desktop\Bifrost v1.2.exe

explorer.exe

User:

admin

Company:

http://www.chasenet.org

Integrity Level:

MEDIUM

Description:

Bifrost 1.2

Version:

1, 2, 0, 0

Modules

Images
c:\users\admin\desktop\bifrost v1.2.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\advapi32.dll

2040

"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\Desktop\Bifrost v1.2.exe.zip"

C:\Program Files\WinRAR\WinRAR.exe

explorer.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\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll

2348

C:\WINDOWS\System32\slui.exe -Embedding

C:\Windows\System32\slui.exe

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Activation Client

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll

4528

"C:\Users\admin\Desktop\server.exe"

C:\Users\admin\Desktop\server.exe

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\desktop\server.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\advapi32.dll
c:\windows\syswow64\msvcrt.dll

4760

"C:\Users\admin\Desktop\server.exe"

C:\Users\admin\Desktop\server.exe

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\desktop\server.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\advapi32.dll

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Total events

4 677

Read events

4 617

Write events

Delete events

Modification events


(PID) Process:	(2040) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtBMP
Value:
(PID) Process:	(2040) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtIcon
Value:
(PID) Process:	(2040) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	3
Value: C:\Users\admin\Desktop\preferences.zip
(PID) Process:	(2040) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	2
Value: C:\Users\admin\Desktop\chromium_ext.zip
(PID) Process:	(2040) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	1
Value: C:\Users\admin\Desktop\omni_23_10_2024_.zip
(PID) Process:	(2040) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\Desktop\Bifrost v1.2.exe.zip
(PID) Process:	(2040) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(2040) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(2040) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(2040) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
1740	Bifrost v1.2.exe	C:\Users\admin\Desktop\server.exe		executable
		MD5:BBCC8F9CB6D3B37EF2D2493101D052FB	SHA256:D7E0895F74654511DBE04889F90190FF5E86F2145BE6DC11A9817D21A8A484C3
2040	WinRAR.exe	C:\Users\admin\Desktop\Bifrost v1.2.exe.bin		executable
		MD5:F240704BF6FCFEED002A09D0BD99C4E0	SHA256:3EF08A361122944A1D07E2974FFFEE07AB2EB0586470B5FF9378C07FD2CCD691
4760	server.exe	C:\Users\admin\AppData\Roaming\addon.dat		binary
		MD5:13B9594D08A3A220A7A2B2D05BFEB5AB	SHA256:C206B874E4EB6FDCC225D89B30E371A980D6554C4E2B89B4F87AD483C1F154B5

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
1268	svchost.exe	GET	200	2.20.245.139:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
1268	svchost.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
5444	svchost.exe	GET	200	2.17.190.73:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
7084	SIHClient.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
2940	svchost.exe	GET	200	23.209.209.135:80	http://x1.c.lencr.org/	unknown	—	—	whitelisted
7084	SIHClient.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted

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
1268	svchost.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
5944	MoUsoCoreWorker.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
5560	RUXIMICS.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
1268	svchost.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
1268	svchost.exe	2.20.245.139:80	crl.microsoft.com	Akamai International B.V.	SE	whitelisted
1268	svchost.exe	95.101.149.131:80	www.microsoft.com	Akamai International B.V.	NL	whitelisted
5444	svchost.exe	40.126.32.72:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
5444	svchost.exe	2.17.190.73:80	ocsp.digicert.com	AKAMAI-AS	DE	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	51.124.78.146 51.104.136.2 40.127.240.158	whitelisted
google.com	172.217.16.206	whitelisted
crl.microsoft.com	2.20.245.139 2.20.245.136	whitelisted
www.microsoft.com	95.101.149.131 23.35.229.160	whitelisted
login.live.com	40.126.32.72 20.190.160.64 40.126.32.136 20.190.160.132 40.126.32.74 20.190.160.4 20.190.160.20 40.126.32.76	whitelisted
ocsp.digicert.com	2.17.190.73	whitelisted
client.wns.windows.com	172.211.123.249	whitelisted
nexusrules.officeapps.live.com	52.111.243.31	whitelisted
slscr.update.microsoft.com	4.175.87.197	whitelisted
fe3cr.delivery.mp.microsoft.com	13.85.23.206	whitelisted

Threats

No threats detected

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Process	Message
Bifrost v1.2.exe	%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s
Bifrost v1.2.exe	%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s
Bifrost v1.2.exe	%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s
Bifrost v1.2.exe	%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s
Bifrost v1.2.exe	%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s
Bifrost v1.2.exe	%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s
Bifrost v1.2.exe	%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s
Bifrost v1.2.exe	%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s
Bifrost v1.2.exe	%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s
Bifrost v1.2.exe	%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s

General Info

Bifrost v1.2.exe.zip

BBB0F0271F2857C434D2520109196D82

D68B0B55AE014C65A1A60247EE8ACF1D4A12CFCD

06A8D16D3E60FD26649B2802FBF5AE3185EC17F06EC969B53F157FE6AF119518

24576:2c49CD9cdujMFaYFfnJBF0ejSmwo0hzGzcRg2ycsUGArsPq9:2c49CpcdujMFaYFfnJBF0ejSmwo0hzGE

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Generic archive extractor

BIFROST mutex has been found

SUSPICIOUS

There is functionality for taking screenshot (YARA)

Executable content was dropped or overwritten

INFO

Reads the computer name

Checks supported languages

The sample compiled with english language support

Manual execution by a user

Executable content was dropped or overwritten

UPX packer has been detected

Creates files or folders in the user directory

Checks proxy server information

Reads the software policy settings

Malware configuration

Static information

TRiD

EXIF

ZIP

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings