Malware Analysis Report

2025-04-14 05:10

Sample ID 220520-qrw4daghbm
Target dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5
SHA256 dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5
Tags
revengerat jc0der-firebyt3 evasion stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5

Threat Level: Known bad

The file dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5 was found to be: Known bad.

Malicious Activity Summary

revengerat jc0der-firebyt3 evasion stealer trojan

RevengeRAT

Looks for VirtualBox Guest Additions in registry

RevengeRat Executable

Looks for VMWare Tools registry key

Checks BIOS information in registry

Maps connected drives based on registry

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-20 13:30

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-20 13:30

Reported

2022-05-20 14:12

Platform

win7-20220414-en

Max time kernel

154s

Max time network

57s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe"

Signatures

RevengeRAT

trojan revengerat

Looks for VirtualBox Guest Additions in registry

evasion

RevengeRat Executable

stealer
Description Indicator Process Target
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Looks for VMWare Tools registry key

evasion

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 916 set thread context of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
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Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 916 wrote to memory of 1940 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1940 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1940 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1940 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1940 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1940 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1940 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1008 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1008 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1008 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1008 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1008 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1008 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1008 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 916 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe

"C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 nasadigitalgov.sytes.net udp

Files

memory/916-54-0x0000000001030000-0x00000000010F0000-memory.dmp

memory/916-55-0x0000000075711000-0x0000000075713000-memory.dmp

memory/916-56-0x0000000000590000-0x00000000005CE000-memory.dmp

memory/916-57-0x0000000000960000-0x0000000000988000-memory.dmp

memory/916-58-0x00000000009E0000-0x00000000009EC000-memory.dmp

memory/1112-59-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1112-60-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1112-62-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1112-63-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1112-64-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1112-65-0x000000000040666E-mapping.dmp

memory/1112-67-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1112-69-0x0000000000400000-0x000000000040C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-20 13:30

Reported

2022-05-20 14:12

Platform

win10v2004-20220414-en

Max time kernel

152s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe"

Signatures

RevengeRAT

trojan revengerat

Looks for VirtualBox Guest Additions in registry

evasion

RevengeRat Executable

stealer
Description Indicator Process Target
N/A N/A N/A N/A

Looks for VMWare Tools registry key

evasion

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1188 set thread context of 5096 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
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Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1188 wrote to memory of 5096 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1188 wrote to memory of 5096 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1188 wrote to memory of 5096 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1188 wrote to memory of 5096 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1188 wrote to memory of 5096 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1188 wrote to memory of 5096 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1188 wrote to memory of 5096 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1188 wrote to memory of 5096 N/A C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe

"C:\Users\Admin\AppData\Local\Temp\dbf10315d6df7a360414da861c456fd9c07b53160525fde4cd5f51340d2da3d5.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 20.189.173.3:443 tcp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.247.210.254:80 tcp
US 8.247.210.254:80 tcp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
BE 8.238.110.126:80 tcp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 14.110.152.52.in-addr.arpa udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp
US 8.8.8.8:53 nasadigitalgov.sytes.net udp

Files

memory/1188-130-0x00000000005C0000-0x0000000000680000-memory.dmp

memory/1188-131-0x0000000005460000-0x000000000598C000-memory.dmp

memory/1188-132-0x0000000005150000-0x00000000051B6000-memory.dmp

memory/1188-133-0x0000000005C50000-0x0000000005CEC000-memory.dmp

memory/5096-134-0x0000000000000000-mapping.dmp

memory/5096-135-0x0000000000400000-0x000000000040C000-memory.dmp

memory/5096-136-0x0000000005D40000-0x00000000062E4000-memory.dmp