umbral | 81046d6d4e474115dd898d8e4718bc2ba144928461baa26e23f26d73d8e3f2f7

Analysis

max time kernel
91s
max time network
132s
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 16:59

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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/4628-133-0x0000017329460000-0x000001732949C000-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
15	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2400	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3372	powershell.exe
3372	powershell.exe
1952	powershell.exe
1952	powershell.exe
2404	powershell.exe
2404	powershell.exe
4352	powershell.exe
4352	powershell.exe
2352	powershell.exe
2352	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4628	RbxCheats.exe
Token: SeDebugPrivilege	3372	powershell.exe
Token: SeDebugPrivilege	1952	powershell.exe
Token: SeDebugPrivilege	2404	powershell.exe
Token: SeDebugPrivilege	4352	powershell.exe
Token: SeIncreaseQuotaPrivilege	1944	wmic.exe
Token: SeSecurityPrivilege	1944	wmic.exe
Token: SeTakeOwnershipPrivilege	1944	wmic.exe
Token: SeLoadDriverPrivilege	1944	wmic.exe
Token: SeSystemProfilePrivilege	1944	wmic.exe
Token: SeSystemtimePrivilege	1944	wmic.exe
Token: SeProfSingleProcessPrivilege	1944	wmic.exe
Token: SeIncBasePriorityPrivilege	1944	wmic.exe
Token: SeCreatePagefilePrivilege	1944	wmic.exe
Token: SeBackupPrivilege	1944	wmic.exe
Token: SeRestorePrivilege	1944	wmic.exe
Token: SeShutdownPrivilege	1944	wmic.exe
Token: SeDebugPrivilege	1944	wmic.exe
Token: SeSystemEnvironmentPrivilege	1944	wmic.exe
Token: SeRemoteShutdownPrivilege	1944	wmic.exe
Token: SeUndockPrivilege	1944	wmic.exe
Token: SeManageVolumePrivilege	1944	wmic.exe
Token: 33	1944	wmic.exe
Token: 34	1944	wmic.exe
Token: 35	1944	wmic.exe
Token: 36	1944	wmic.exe
Token: SeIncreaseQuotaPrivilege	1944	wmic.exe
Token: SeSecurityPrivilege	1944	wmic.exe
Token: SeTakeOwnershipPrivilege	1944	wmic.exe
Token: SeLoadDriverPrivilege	1944	wmic.exe
Token: SeSystemProfilePrivilege	1944	wmic.exe
Token: SeSystemtimePrivilege	1944	wmic.exe
Token: SeProfSingleProcessPrivilege	1944	wmic.exe
Token: SeIncBasePriorityPrivilege	1944	wmic.exe
Token: SeCreatePagefilePrivilege	1944	wmic.exe
Token: SeBackupPrivilege	1944	wmic.exe
Token: SeRestorePrivilege	1944	wmic.exe
Token: SeShutdownPrivilege	1944	wmic.exe
Token: SeDebugPrivilege	1944	wmic.exe
Token: SeSystemEnvironmentPrivilege	1944	wmic.exe
Token: SeRemoteShutdownPrivilege	1944	wmic.exe
Token: SeUndockPrivilege	1944	wmic.exe
Token: SeManageVolumePrivilege	1944	wmic.exe
Token: 33	1944	wmic.exe
Token: 34	1944	wmic.exe
Token: 35	1944	wmic.exe
Token: 36	1944	wmic.exe
Token: SeIncreaseQuotaPrivilege	2268	wmic.exe
Token: SeSecurityPrivilege	2268	wmic.exe
Token: SeTakeOwnershipPrivilege	2268	wmic.exe
Token: SeLoadDriverPrivilege	2268	wmic.exe
Token: SeSystemProfilePrivilege	2268	wmic.exe
Token: SeSystemtimePrivilege	2268	wmic.exe
Token: SeProfSingleProcessPrivilege	2268	wmic.exe
Token: SeIncBasePriorityPrivilege	2268	wmic.exe
Token: SeCreatePagefilePrivilege	2268	wmic.exe
Token: SeBackupPrivilege	2268	wmic.exe
Token: SeRestorePrivilege	2268	wmic.exe
Token: SeShutdownPrivilege	2268	wmic.exe
Token: SeDebugPrivilege	2268	wmic.exe
Token: SeSystemEnvironmentPrivilege	2268	wmic.exe
Token: SeRemoteShutdownPrivilege	2268	wmic.exe
Token: SeUndockPrivilege	2268	wmic.exe
Token: SeManageVolumePrivilege	2268	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4628 wrote to memory of 3372	4628	RbxCheats.exe	84
PID 4628 wrote to memory of 3372	4628	RbxCheats.exe	84
PID 4628 wrote to memory of 1952	4628	RbxCheats.exe	86
PID 4628 wrote to memory of 1952	4628	RbxCheats.exe	86
PID 4628 wrote to memory of 2404	4628	RbxCheats.exe	88
PID 4628 wrote to memory of 2404	4628	RbxCheats.exe	88
PID 4628 wrote to memory of 4352	4628	RbxCheats.exe	90
PID 4628 wrote to memory of 4352	4628	RbxCheats.exe	90
PID 4628 wrote to memory of 1944	4628	RbxCheats.exe	94
PID 4628 wrote to memory of 1944	4628	RbxCheats.exe	94
PID 4628 wrote to memory of 2268	4628	RbxCheats.exe	97
PID 4628 wrote to memory of 2268	4628	RbxCheats.exe	97
PID 4628 wrote to memory of 3984	4628	RbxCheats.exe	99
PID 4628 wrote to memory of 3984	4628	RbxCheats.exe	99
PID 4628 wrote to memory of 2352	4628	RbxCheats.exe	101
PID 4628 wrote to memory of 2352	4628	RbxCheats.exe	101
PID 4628 wrote to memory of 2400	4628	RbxCheats.exe	103
PID 4628 wrote to memory of 2400	4628	RbxCheats.exe	103

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:4628
- 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:3372
- 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:1952
- 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:2404
- 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:4352
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1944
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2268
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3984
- 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:2352
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2400

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
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
948B

MD5
929c856a9f5f4fd187b9b324e39be583

SHA1
b5d74d5b632f2b0d892c0b763f7f9c36f8677fec

SHA256
67fc49d5d72ee25add82821193e326f1109d7b88189560492686a8f9d8b6c97e

SHA512
5746885b047af646bee26dc965c2fea100c395b2cc89a868af5d5858dd273497c3ea2f567c11439a84502cceea001a661352b8d0873c2cf09b1697c583fc61dd

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

Filesize
1KB

MD5
d3235ed022a42ec4338123ab87144afa

SHA1
5058608bc0deb720a585a2304a8f7cf63a50a315

SHA256
10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

SHA512
236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

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

Filesize
1KB

MD5
c834bada314b4751b8363181f151a34d

SHA1
cc2fa47c892836ed148fd3444ce9d7b97999c331

SHA256
e928f357f8a224e3e0250832bfe432b937fa0f6fa6891b6cf85f6754be9db29e

SHA512
96a621dd6942ab8d45fea6e14be7eb5f2a9dfe0db620ec6816eafbfd346ac64d35647bcdf778965734143183aa96a6ade49e890323c7b5b60aa4f602f78cb3eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ae3qrd2y.hwj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1952-159-0x00000250F5F60000-0x00000250F5F70000-memory.dmp

Filesize
64KB

Download
memory/1952-160-0x00000250F5F60000-0x00000250F5F70000-memory.dmp

Filesize
64KB

Download
memory/1952-158-0x00000250F5F60000-0x00000250F5F70000-memory.dmp

Filesize
64KB

Download
memory/2352-219-0x00000271F54F0000-0x00000271F5500000-memory.dmp

Filesize
64KB

Download
memory/2352-220-0x00000271F54F0000-0x00000271F5500000-memory.dmp

Filesize
64KB

Download
memory/2352-218-0x00000271F54F0000-0x00000271F5500000-memory.dmp

Filesize
64KB

Download
memory/2404-185-0x000001D3F25F0000-0x000001D3F2600000-memory.dmp

Filesize
64KB

Download
memory/2404-187-0x000001D3F25F0000-0x000001D3F2600000-memory.dmp

Filesize
64KB

Download
memory/2404-186-0x000001D3F25F0000-0x000001D3F2600000-memory.dmp

Filesize
64KB

Download
memory/3372-144-0x000001A3CEB70000-0x000001A3CEB92000-memory.dmp

Filesize
136KB

Download
memory/4352-201-0x000001F6D0890000-0x000001F6D08A0000-memory.dmp

Filesize
64KB

Download
memory/4352-199-0x000001F6D0890000-0x000001F6D08A0000-memory.dmp

Filesize
64KB

Download
memory/4352-200-0x000001F6D0890000-0x000001F6D08A0000-memory.dmp

Filesize
64KB

Download
memory/4628-133-0x0000017329460000-0x000001732949C000-memory.dmp

Filesize
240KB

Download
memory/4628-204-0x000001732B1B0000-0x000001732B1BA000-memory.dmp

Filesize
40KB

Download
memory/4628-205-0x000001732B1E0000-0x000001732B1F2000-memory.dmp

Filesize
72KB

Download
memory/4628-134-0x000001732AFC0000-0x000001732AFD0000-memory.dmp

Filesize
64KB

Download
memory/4628-165-0x0000017343C20000-0x0000017343C3E000-memory.dmp

Filesize
120KB

Download
memory/4628-164-0x0000017343BA0000-0x0000017343BF0000-memory.dmp

Filesize
320KB

Download
memory/4628-163-0x0000017343B20000-0x0000017343B96000-memory.dmp

Filesize
472KB

Download