umbral | 81046d6d4e474115dd898d8e4718bc2ba144928461baa26e23f26d73d8e3f2f7

Analysis

max time kernel
142s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
29-06-2023 17:06

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General

Target

RbxCheats.exe
Size

217KB
MD5

84fe5aaf9d71e59205c851af53d6a1c7
SHA1

1b93e136c567dce28cccd900a02b694d9f488d86
SHA256

81046d6d4e474115dd898d8e4718bc2ba144928461baa26e23f26d73d8e3f2f7
SHA512

db3bfcbccd1b6e22754fd40841f2b2f0d229852879ab1c10e214d8185e5c29f8a8d3e318182c80a2887cf77f7e59aa3e95088b2901eb96720afd9e4f7d775a2d
SSDEEP

3072:WlP/chtWkOIGSAvD6vdnsUSaNZZDOAuIXk0IIIIIIEIIIIIIIIIIIlTIIIIIIIII:OcyHIGadsUSsZDO7+8eNHpDS

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3220-133-0x000001ABEAC20000-0x000001ABEAC5C000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Looks up external IP address via web service 1 IoCs

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

flow	ioc
25	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3084	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1368	powershell.exe
1368	powershell.exe
312	powershell.exe
312	powershell.exe
1436	powershell.exe
1436	powershell.exe
5104	powershell.exe
5104	powershell.exe
2032	powershell.exe
2032	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3220	RbxCheats.exe
Token: SeDebugPrivilege	1368	powershell.exe
Token: SeDebugPrivilege	312	powershell.exe
Token: SeDebugPrivilege	1436	powershell.exe
Token: SeDebugPrivilege	5104	powershell.exe
Token: SeIncreaseQuotaPrivilege	3652	wmic.exe
Token: SeSecurityPrivilege	3652	wmic.exe
Token: SeTakeOwnershipPrivilege	3652	wmic.exe
Token: SeLoadDriverPrivilege	3652	wmic.exe
Token: SeSystemProfilePrivilege	3652	wmic.exe
Token: SeSystemtimePrivilege	3652	wmic.exe
Token: SeProfSingleProcessPrivilege	3652	wmic.exe
Token: SeIncBasePriorityPrivilege	3652	wmic.exe
Token: SeCreatePagefilePrivilege	3652	wmic.exe
Token: SeBackupPrivilege	3652	wmic.exe
Token: SeRestorePrivilege	3652	wmic.exe
Token: SeShutdownPrivilege	3652	wmic.exe
Token: SeDebugPrivilege	3652	wmic.exe
Token: SeSystemEnvironmentPrivilege	3652	wmic.exe
Token: SeRemoteShutdownPrivilege	3652	wmic.exe
Token: SeUndockPrivilege	3652	wmic.exe
Token: SeManageVolumePrivilege	3652	wmic.exe
Token: 33	3652	wmic.exe
Token: 34	3652	wmic.exe
Token: 35	3652	wmic.exe
Token: 36	3652	wmic.exe
Token: SeIncreaseQuotaPrivilege	3652	wmic.exe
Token: SeSecurityPrivilege	3652	wmic.exe
Token: SeTakeOwnershipPrivilege	3652	wmic.exe
Token: SeLoadDriverPrivilege	3652	wmic.exe
Token: SeSystemProfilePrivilege	3652	wmic.exe
Token: SeSystemtimePrivilege	3652	wmic.exe
Token: SeProfSingleProcessPrivilege	3652	wmic.exe
Token: SeIncBasePriorityPrivilege	3652	wmic.exe
Token: SeCreatePagefilePrivilege	3652	wmic.exe
Token: SeBackupPrivilege	3652	wmic.exe
Token: SeRestorePrivilege	3652	wmic.exe
Token: SeShutdownPrivilege	3652	wmic.exe
Token: SeDebugPrivilege	3652	wmic.exe
Token: SeSystemEnvironmentPrivilege	3652	wmic.exe
Token: SeRemoteShutdownPrivilege	3652	wmic.exe
Token: SeUndockPrivilege	3652	wmic.exe
Token: SeManageVolumePrivilege	3652	wmic.exe
Token: 33	3652	wmic.exe
Token: 34	3652	wmic.exe
Token: 35	3652	wmic.exe
Token: 36	3652	wmic.exe
Token: SeIncreaseQuotaPrivilege	4960	wmic.exe
Token: SeSecurityPrivilege	4960	wmic.exe
Token: SeTakeOwnershipPrivilege	4960	wmic.exe
Token: SeLoadDriverPrivilege	4960	wmic.exe
Token: SeSystemProfilePrivilege	4960	wmic.exe
Token: SeSystemtimePrivilege	4960	wmic.exe
Token: SeProfSingleProcessPrivilege	4960	wmic.exe
Token: SeIncBasePriorityPrivilege	4960	wmic.exe
Token: SeCreatePagefilePrivilege	4960	wmic.exe
Token: SeBackupPrivilege	4960	wmic.exe
Token: SeRestorePrivilege	4960	wmic.exe
Token: SeShutdownPrivilege	4960	wmic.exe
Token: SeDebugPrivilege	4960	wmic.exe
Token: SeSystemEnvironmentPrivilege	4960	wmic.exe
Token: SeRemoteShutdownPrivilege	4960	wmic.exe
Token: SeUndockPrivilege	4960	wmic.exe
Token: SeManageVolumePrivilege	4960	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3220 wrote to memory of 1368	3220	RbxCheats.exe	85
PID 3220 wrote to memory of 1368	3220	RbxCheats.exe	85
PID 3220 wrote to memory of 312	3220	RbxCheats.exe	87
PID 3220 wrote to memory of 312	3220	RbxCheats.exe	87
PID 3220 wrote to memory of 1436	3220	RbxCheats.exe	89
PID 3220 wrote to memory of 1436	3220	RbxCheats.exe	89
PID 3220 wrote to memory of 5104	3220	RbxCheats.exe	91
PID 3220 wrote to memory of 5104	3220	RbxCheats.exe	91
PID 3220 wrote to memory of 3652	3220	RbxCheats.exe	96
PID 3220 wrote to memory of 3652	3220	RbxCheats.exe	96
PID 3220 wrote to memory of 4960	3220	RbxCheats.exe	98
PID 3220 wrote to memory of 4960	3220	RbxCheats.exe	98
PID 3220 wrote to memory of 4512	3220	RbxCheats.exe	101
PID 3220 wrote to memory of 4512	3220	RbxCheats.exe	101
PID 3220 wrote to memory of 2032	3220	RbxCheats.exe	103
PID 3220 wrote to memory of 2032	3220	RbxCheats.exe	103
PID 3220 wrote to memory of 3084	3220	RbxCheats.exe	105
PID 3220 wrote to memory of 3084	3220	RbxCheats.exe	105

C:\Users\Admin\AppData\Local\Temp\RbxCheats.exe
"C:\Users\Admin\AppData\Local\Temp\RbxCheats.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3220
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\RbxCheats.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1368
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:312
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1436
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5104
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3652
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4960
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4512
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3084

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

T1102

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

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\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
3a6bad9528f8e23fb5c77fbd81fa28e8

SHA1
f127317c3bc6407f536c0f0600dcbcf1aabfba36

SHA256
986366767de5873f1b170a63f2a33ce05132d1afd90c8f5017afbca8ef1beb05

SHA512
846002154a0ece6f3e9feda6f115d3161dc21b3789525dd62ae1d9188495171293efdbe7be4710666dd8a15e66b557315b5a02918a741ed1d5f3ff0c515b98e2

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

Filesize
948B

MD5
7e6444621df5580f99d39261e0e7805b

SHA1
2fe7b2d2463d42f1c27d8cb639311f24c6e2d74f

SHA256
8cb368b7143bcdb817534d6ec6e56946995a631fb50f6254c4885ad08377dcb1

SHA512
d54295b3bf4aab31a5b51364b8b88772da5a99ffbed7797c01e36a03529a7abb3b552c7821a2a44bc948ba16eed0c1934e5802ed08893892b91dd495b55258df

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

Filesize
1KB

MD5
2a75c2057536d71d287d7cefff04eec3

SHA1
c61131dee25db97244118daaf982c0bd1389b8b4

SHA256
93cf99b87df289b80cc8be11623fbb0b09812f2dcee9986e76cedb188ca942a0

SHA512
1d8877aeade86757fb7d37b54abf27e8d6579a7a51bcbba549bcfd0c66a2b4383ab7f34eb4621c031262df4e5266332e1427f64af268922e24c24ed9ca94f150

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

Filesize
1KB

MD5
80206ff0b13bcd55144f8c03fc3cca3a

SHA1
ca9519d626591c2d1ad58d2cc943c429e54f11b9

SHA256
b20b6a3e03c7ce6f69abd4b8febbd726be6a5c8c35d6f5df1d1fe74a7da73942

SHA512
84106b468a6a2b834734ed75a3693cbe2f3b4e4a33210ea7cf65ef639d8dfb8e42946eba9cf74244562ebf2485c02235f0f76580ebe59f914a90b2f51d7322ac

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eixzrfxj.km3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1368-135-0x0000018F32B10000-0x0000018F32B20000-memory.dmp

Filesize
64KB

Download
memory/1368-148-0x0000018F32B10000-0x0000018F32B20000-memory.dmp

Filesize
64KB

Download
memory/1368-147-0x0000018F32B10000-0x0000018F32B20000-memory.dmp

Filesize
64KB

Download
memory/1368-137-0x0000018F32B10000-0x0000018F32B20000-memory.dmp

Filesize
64KB

Download
memory/1368-136-0x0000018F32CE0000-0x0000018F32D02000-memory.dmp

Filesize
136KB

Download
memory/1436-167-0x00000279B9B10000-0x00000279B9B20000-memory.dmp

Filesize
64KB

Download
memory/1436-168-0x00000279B9B10000-0x00000279B9B20000-memory.dmp

Filesize
64KB

Download
memory/2032-208-0x000001E668C60000-0x000001E668C70000-memory.dmp

Filesize
64KB

Download
memory/2032-207-0x000001E668C60000-0x000001E668C70000-memory.dmp

Filesize
64KB

Download
memory/3220-166-0x000001ABED200000-0x000001ABED21E000-memory.dmp

Filesize
120KB

Download
memory/3220-133-0x000001ABEAC20000-0x000001ABEAC5C000-memory.dmp

Filesize
240KB

Download
memory/3220-203-0x000001ABEB090000-0x000001ABEB09A000-memory.dmp

Filesize
40KB

Download
memory/3220-204-0x000001ABED220000-0x000001ABED232000-memory.dmp

Filesize
72KB

Download
memory/3220-165-0x000001ABEC9A0000-0x000001ABEC9F0000-memory.dmp

Filesize
320KB

Download
memory/3220-164-0x000001ABED3F0000-0x000001ABED466000-memory.dmp

Filesize
472KB

Download
memory/3220-134-0x000001ABED260000-0x000001ABED270000-memory.dmp

Filesize
64KB

Download
memory/3220-221-0x000001ABED260000-0x000001ABED270000-memory.dmp

Filesize
64KB

Download
memory/5104-199-0x0000027D70EB0000-0x0000027D70EC0000-memory.dmp

Filesize
64KB

Download
memory/5104-200-0x0000027D70EB0000-0x0000027D70EC0000-memory.dmp

Filesize
64KB

Download