revengerat | 5069f377047dcab276edcf1a759208fcd6723b11dc41a77b0e4ca273a976f699

Analysis

max time kernel
124s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
04/04/2025, 21:28

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General

Target

Settings.exe
Size

575KB
MD5

f6b9a7b049f67e96f3440598b133bfe6
SHA1

968116843fe315d8786070a9745c14b5039d415c
SHA256

5069f377047dcab276edcf1a759208fcd6723b11dc41a77b0e4ca273a976f699
SHA512

235a8b11c6c3274da2cb660e6e6592588779682e82708ba15a8ab71b6ed4df259a9f0f746474d42a0cbb040fe5eb39276d006cb63fbdd51f13d15c64956f46ba
SSDEEP

12288:d++zuhAfzEhSFYBSYiMpPU/anILVap192ti/Ajt:nmvhSWNiMVbMaotr

Score

10^/10

revengerat umbral xworm execution rat stealer trojan

Malware Config

Extracted

Family

umbral

https://discordapp.com/api/webhooks/1357765742434717747/kDbvfLYHBAGDInmRBSFI2ybqxiaeMAp3iQtloLjdcA7NcBJ1xBLrGexQcyKSOZNwvdMD

Signatures

Detect Umbral payload 3 IoCs

resource	yara_rule
behavioral1/memory/6020-37-0x0000000002380000-0x00000000023DA000-memory.dmp	family_umbral
behavioral1/files/0x00090000000242da-47.dat	family_umbral
behavioral1/memory/3568-49-0x000001F67F230000-0x000001F67F270000-memory.dmp	family_umbral

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/6020-37-0x0000000002380000-0x00000000023DA000-memory.dmp	family_xworm

RevengeRAT
Remote-access trojan with a wide range of capabilities.
trojan revengerat
Revengerat family
revengerat
Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Umbral family
umbral
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

RevengeRat Executable 1 IoCs

stealer

resource	yara_rule
behavioral1/memory/6020-37-0x0000000002380000-0x00000000023DA000-memory.dmp	revengerat

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3208	powershell.exe
952	powershell.exe

Checks computer location settings 2 TTPs 4 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	Settings.exe
Key value queried	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	SystemSettings.exe
Key value queried	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	SystemSettings.exe
Key value queried	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	SystemSettings.exe

Executes dropped EXE 6 IoCs

pid	Process
6020	SystemSettings.exe
3568	svchost.exe
4400	SystemSettings.exe
3036	svchost.exe
4572	SystemSettings.exe
5212	svchost.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
27	ip-api.com
78	ip-api.com

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\System32\SystemSettings.exe	Settings.exe
File opened for modification	C:\Windows\System32\SystemSettings.exe	Settings.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
952	powershell.exe
952	powershell.exe
3208	powershell.exe
3208	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5628	Settings.exe
Token: SeDebugPrivilege	952	powershell.exe
Token: SeDebugPrivilege	3208	powershell.exe
Token: SeDebugPrivilege	6020	SystemSettings.exe
Token: SeDebugPrivilege	3568	svchost.exe
Token: SeIncreaseQuotaPrivilege	1160	wmic.exe
Token: SeSecurityPrivilege	1160	wmic.exe
Token: SeTakeOwnershipPrivilege	1160	wmic.exe
Token: SeLoadDriverPrivilege	1160	wmic.exe
Token: SeSystemProfilePrivilege	1160	wmic.exe
Token: SeSystemtimePrivilege	1160	wmic.exe
Token: SeProfSingleProcessPrivilege	1160	wmic.exe
Token: SeIncBasePriorityPrivilege	1160	wmic.exe
Token: SeCreatePagefilePrivilege	1160	wmic.exe
Token: SeBackupPrivilege	1160	wmic.exe
Token: SeRestorePrivilege	1160	wmic.exe
Token: SeShutdownPrivilege	1160	wmic.exe
Token: SeDebugPrivilege	1160	wmic.exe
Token: SeSystemEnvironmentPrivilege	1160	wmic.exe
Token: SeRemoteShutdownPrivilege	1160	wmic.exe
Token: SeUndockPrivilege	1160	wmic.exe
Token: SeManageVolumePrivilege	1160	wmic.exe
Token: 33	1160	wmic.exe
Token: 34	1160	wmic.exe
Token: 35	1160	wmic.exe
Token: 36	1160	wmic.exe
Token: SeIncreaseQuotaPrivilege	1160	wmic.exe
Token: SeSecurityPrivilege	1160	wmic.exe
Token: SeTakeOwnershipPrivilege	1160	wmic.exe
Token: SeLoadDriverPrivilege	1160	wmic.exe
Token: SeSystemProfilePrivilege	1160	wmic.exe
Token: SeSystemtimePrivilege	1160	wmic.exe
Token: SeProfSingleProcessPrivilege	1160	wmic.exe
Token: SeIncBasePriorityPrivilege	1160	wmic.exe
Token: SeCreatePagefilePrivilege	1160	wmic.exe
Token: SeBackupPrivilege	1160	wmic.exe
Token: SeRestorePrivilege	1160	wmic.exe
Token: SeShutdownPrivilege	1160	wmic.exe
Token: SeDebugPrivilege	1160	wmic.exe
Token: SeSystemEnvironmentPrivilege	1160	wmic.exe
Token: SeRemoteShutdownPrivilege	1160	wmic.exe
Token: SeUndockPrivilege	1160	wmic.exe
Token: SeManageVolumePrivilege	1160	wmic.exe
Token: 33	1160	wmic.exe
Token: 34	1160	wmic.exe
Token: 35	1160	wmic.exe
Token: 36	1160	wmic.exe
Token: SeDebugPrivilege	4400	SystemSettings.exe
Token: SeDebugPrivilege	3036	svchost.exe
Token: SeIncreaseQuotaPrivilege	2428	wmic.exe
Token: SeSecurityPrivilege	2428	wmic.exe
Token: SeTakeOwnershipPrivilege	2428	wmic.exe
Token: SeLoadDriverPrivilege	2428	wmic.exe
Token: SeSystemProfilePrivilege	2428	wmic.exe
Token: SeSystemtimePrivilege	2428	wmic.exe
Token: SeProfSingleProcessPrivilege	2428	wmic.exe
Token: SeIncBasePriorityPrivilege	2428	wmic.exe
Token: SeCreatePagefilePrivilege	2428	wmic.exe
Token: SeBackupPrivilege	2428	wmic.exe
Token: SeRestorePrivilege	2428	wmic.exe
Token: SeShutdownPrivilege	2428	wmic.exe
Token: SeDebugPrivilege	2428	wmic.exe
Token: SeSystemEnvironmentPrivilege	2428	wmic.exe
Token: SeRemoteShutdownPrivilege	2428	wmic.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 5628 wrote to memory of 952	5628	Settings.exe	86
PID 5628 wrote to memory of 952	5628	Settings.exe	86
PID 5628 wrote to memory of 3208	5628	Settings.exe	90
PID 5628 wrote to memory of 3208	5628	Settings.exe	90
PID 6020 wrote to memory of 3568	6020	SystemSettings.exe	99
PID 6020 wrote to memory of 3568	6020	SystemSettings.exe	99
PID 3568 wrote to memory of 1160	3568	svchost.exe	103
PID 3568 wrote to memory of 1160	3568	svchost.exe	103
PID 4400 wrote to memory of 3036	4400	SystemSettings.exe	119
PID 4400 wrote to memory of 3036	4400	SystemSettings.exe	119
PID 3036 wrote to memory of 2428	3036	svchost.exe	122
PID 3036 wrote to memory of 2428	3036	svchost.exe	122
PID 4572 wrote to memory of 5212	4572	SystemSettings.exe	126
PID 4572 wrote to memory of 5212	4572	SystemSettings.exe	126
PID 5212 wrote to memory of 900	5212	svchost.exe	129
PID 5212 wrote to memory of 900	5212	svchost.exe	129

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Settings.exe
"C:\Users\Admin\AppData\Local\Temp\Settings.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5628
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\System32\SystemSettings.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:952
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SystemSettings.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3208

C:\Windows\System32\SystemSettings.exe
C:\Windows\System32\SystemSettings.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:6020
- C:\ProgramData\svchost.exe
  "C:\ProgramData\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3568
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1160

C:\Windows\System32\SystemSettings.exe
C:\Windows\System32\SystemSettings.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4400
- C:\ProgramData\svchost.exe
  "C:\ProgramData\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3036
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2428

C:\Windows\System32\SystemSettings.exe
C:\Windows\System32\SystemSettings.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4572
- C:\ProgramData\svchost.exe
  "C:\ProgramData\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:5212
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\svchost.exe

Filesize
231KB

MD5
358e1b599e0d06b53343389b13c7fb62

SHA1
74be9b62dc8ef9fc34b6d59f87f89fa090fc1184

SHA256
57538a24f196fa4679b9a8e3af66db37826870d639374ab2350c13cf798759e9

SHA512
d370826d5f91cbf0f508ad2e2d20f78cefc2532497fcb3a995c21e14c66bbc8b36c42dde6d528b9a269386431e1d1a66588f326892cff119b8627e0727a9a137

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
1KB

MD5
8094b248fe3231e48995c2be32aeb08c

SHA1
2fe06e000ebec919bf982d033c5d1219c1f916b6

SHA256
136c30d964f4abbb5279bdc86d0e00578333782f15f05f0d2d050730dcb7a9bc

SHA512
bf27a3822008796370e2c506c910a40992b9240606ea1bc19f683b2fee86b81897660ac0cf8e746ca093dae9e408949e2e9002ded75678a69f020d3b0452801f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
3930c254bc452c4fd482e3059b51aa04

SHA1
1c4bdb41f3a7c9d4ee3b8006cc1c495eedb072e2

SHA256
dc600748250d0dd0ffa2678049fd27ec8e56e262601f3d8a1fd7165b03f97fb8

SHA512
888565d3356b5fc9c5b55d6842c520487219bc2220df2a56cb74686cc36ebd0fbd1ab9f2a17f93e9c15031c8d6366031a4fd2c1f8a6f8cf96bc3a5939f31a083

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xb0yg1w0.mmk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\System32\SystemSettings.exe

Filesize
575KB

MD5
f6b9a7b049f67e96f3440598b133bfe6

SHA1
968116843fe315d8786070a9745c14b5039d415c

SHA256
5069f377047dcab276edcf1a759208fcd6723b11dc41a77b0e4ca273a976f699

SHA512
235a8b11c6c3274da2cb660e6e6592588779682e82708ba15a8ab71b6ed4df259a9f0f746474d42a0cbb040fe5eb39276d006cb63fbdd51f13d15c64956f46ba

Download Submit
memory/952-12-0x00007FFA841D0000-0x00007FFA84C91000-memory.dmp

Filesize
10.8MB

Download
memory/952-17-0x00007FFA841D0000-0x00007FFA84C91000-memory.dmp

Filesize
10.8MB

Download
memory/952-14-0x00007FFA841D0000-0x00007FFA84C91000-memory.dmp

Filesize
10.8MB

Download
memory/952-13-0x00007FFA841D0000-0x00007FFA84C91000-memory.dmp

Filesize
10.8MB

Download
memory/952-11-0x000001441FE60000-0x000001441FE82000-memory.dmp

Filesize
136KB

Download
memory/3568-49-0x000001F67F230000-0x000001F67F270000-memory.dmp

Filesize
256KB

Download
memory/5628-32-0x00007FFA841D0000-0x00007FFA84C91000-memory.dmp

Filesize
10.8MB

Download
memory/5628-0-0x00007FFA841D3000-0x00007FFA841D5000-memory.dmp

Filesize
8KB

Download
memory/5628-36-0x00007FFA841D0000-0x00007FFA84C91000-memory.dmp

Filesize
10.8MB

Download
memory/5628-1-0x00000000002E0000-0x0000000000376000-memory.dmp

Filesize
600KB

Download
memory/6020-37-0x0000000002380000-0x00000000023DA000-memory.dmp

Filesize
360KB

Download