umbral | 81046d6d4e474115dd898d8e4718bc2ba144928461baa26e23f26d73d8e3f2f7

Analysis

max time kernel
84s
max time network
91s
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 17:07

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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/4664-133-0x00000202FF3F0000-0x00000202FF42C000-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
19	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2692	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3796	powershell.exe
3796	powershell.exe
2640	powershell.exe
2640	powershell.exe
1416	powershell.exe
1416	powershell.exe
4036	powershell.exe
4036	powershell.exe
1572	powershell.exe
1572	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4664	RbxCheats.exe
Token: SeDebugPrivilege	3796	powershell.exe
Token: SeDebugPrivilege	2640	powershell.exe
Token: SeDebugPrivilege	1416	powershell.exe
Token: SeDebugPrivilege	4036	powershell.exe
Token: SeIncreaseQuotaPrivilege	3064	wmic.exe
Token: SeSecurityPrivilege	3064	wmic.exe
Token: SeTakeOwnershipPrivilege	3064	wmic.exe
Token: SeLoadDriverPrivilege	3064	wmic.exe
Token: SeSystemProfilePrivilege	3064	wmic.exe
Token: SeSystemtimePrivilege	3064	wmic.exe
Token: SeProfSingleProcessPrivilege	3064	wmic.exe
Token: SeIncBasePriorityPrivilege	3064	wmic.exe
Token: SeCreatePagefilePrivilege	3064	wmic.exe
Token: SeBackupPrivilege	3064	wmic.exe
Token: SeRestorePrivilege	3064	wmic.exe
Token: SeShutdownPrivilege	3064	wmic.exe
Token: SeDebugPrivilege	3064	wmic.exe
Token: SeSystemEnvironmentPrivilege	3064	wmic.exe
Token: SeRemoteShutdownPrivilege	3064	wmic.exe
Token: SeUndockPrivilege	3064	wmic.exe
Token: SeManageVolumePrivilege	3064	wmic.exe
Token: 33	3064	wmic.exe
Token: 34	3064	wmic.exe
Token: 35	3064	wmic.exe
Token: 36	3064	wmic.exe
Token: SeIncreaseQuotaPrivilege	3064	wmic.exe
Token: SeSecurityPrivilege	3064	wmic.exe
Token: SeTakeOwnershipPrivilege	3064	wmic.exe
Token: SeLoadDriverPrivilege	3064	wmic.exe
Token: SeSystemProfilePrivilege	3064	wmic.exe
Token: SeSystemtimePrivilege	3064	wmic.exe
Token: SeProfSingleProcessPrivilege	3064	wmic.exe
Token: SeIncBasePriorityPrivilege	3064	wmic.exe
Token: SeCreatePagefilePrivilege	3064	wmic.exe
Token: SeBackupPrivilege	3064	wmic.exe
Token: SeRestorePrivilege	3064	wmic.exe
Token: SeShutdownPrivilege	3064	wmic.exe
Token: SeDebugPrivilege	3064	wmic.exe
Token: SeSystemEnvironmentPrivilege	3064	wmic.exe
Token: SeRemoteShutdownPrivilege	3064	wmic.exe
Token: SeUndockPrivilege	3064	wmic.exe
Token: SeManageVolumePrivilege	3064	wmic.exe
Token: 33	3064	wmic.exe
Token: 34	3064	wmic.exe
Token: 35	3064	wmic.exe
Token: 36	3064	wmic.exe
Token: SeIncreaseQuotaPrivilege	5032	wmic.exe
Token: SeSecurityPrivilege	5032	wmic.exe
Token: SeTakeOwnershipPrivilege	5032	wmic.exe
Token: SeLoadDriverPrivilege	5032	wmic.exe
Token: SeSystemProfilePrivilege	5032	wmic.exe
Token: SeSystemtimePrivilege	5032	wmic.exe
Token: SeProfSingleProcessPrivilege	5032	wmic.exe
Token: SeIncBasePriorityPrivilege	5032	wmic.exe
Token: SeCreatePagefilePrivilege	5032	wmic.exe
Token: SeBackupPrivilege	5032	wmic.exe
Token: SeRestorePrivilege	5032	wmic.exe
Token: SeShutdownPrivilege	5032	wmic.exe
Token: SeDebugPrivilege	5032	wmic.exe
Token: SeSystemEnvironmentPrivilege	5032	wmic.exe
Token: SeRemoteShutdownPrivilege	5032	wmic.exe
Token: SeUndockPrivilege	5032	wmic.exe
Token: SeManageVolumePrivilege	5032	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 3796	4664	RbxCheats.exe	84
PID 4664 wrote to memory of 3796	4664	RbxCheats.exe	84
PID 4664 wrote to memory of 2640	4664	RbxCheats.exe	86
PID 4664 wrote to memory of 2640	4664	RbxCheats.exe	86
PID 4664 wrote to memory of 1416	4664	RbxCheats.exe	88
PID 4664 wrote to memory of 1416	4664	RbxCheats.exe	88
PID 4664 wrote to memory of 4036	4664	RbxCheats.exe	90
PID 4664 wrote to memory of 4036	4664	RbxCheats.exe	90
PID 4664 wrote to memory of 3064	4664	RbxCheats.exe	94
PID 4664 wrote to memory of 3064	4664	RbxCheats.exe	94
PID 4664 wrote to memory of 5032	4664	RbxCheats.exe	97
PID 4664 wrote to memory of 5032	4664	RbxCheats.exe	97
PID 4664 wrote to memory of 1400	4664	RbxCheats.exe	99
PID 4664 wrote to memory of 1400	4664	RbxCheats.exe	99
PID 4664 wrote to memory of 1572	4664	RbxCheats.exe	101
PID 4664 wrote to memory of 1572	4664	RbxCheats.exe	101
PID 4664 wrote to memory of 2692	4664	RbxCheats.exe	103
PID 4664 wrote to memory of 2692	4664	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:4664
- 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:3796
- 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:2640
- 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:1416
- 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:4036
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3064
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1400
- 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:1572
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2692

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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
948B

MD5
5ae6535f0a379e0d7d5abab83390d5c5

SHA1
f8231cd53b365100f267f7b4c17b985671057bad

SHA256
d600a6d0007c3a73f6ec4c7f9e211c2df282280eda8237bc1b2df118d15c6d6f

SHA512
eae4c5736c3e9beac89b8f580c227def39238e3b22f5cbd5b21ed5ea776396003326a2e48a237cb91a9a75f5e29646f875caa668e9b54da60bea150f83a96664

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
1146cc324c6553c3f7b446c62a8a35f7

SHA1
dbac476e76f6232964982f75b5a8647a458afb21

SHA256
4d4b7b94d8a777501c0cc070f9ecf6d5d6790618cd2f6d3c42043ccda2cfda99

SHA512
e4cd36ee64aa9dbeb6cd587f0d3e8c77a1a092dda39b4e847be18e57b0b7e01c4b95b660fa973420f29f59828c5b094fe989fc9d1b4b89d62decb0c2da9c4ccf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_coohzo2w.ok1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1416-177-0x000001353B860000-0x000001353B870000-memory.dmp

Filesize
64KB

Download
memory/1416-178-0x000001353B860000-0x000001353B870000-memory.dmp

Filesize
64KB

Download
memory/1572-217-0x0000022F35A60000-0x0000022F35A70000-memory.dmp

Filesize
64KB

Download
memory/1572-218-0x0000022F35A60000-0x0000022F35A70000-memory.dmp

Filesize
64KB

Download
memory/2640-161-0x0000023CE77E0000-0x0000023CE77F0000-memory.dmp

Filesize
64KB

Download
memory/2640-159-0x0000023CE77E0000-0x0000023CE77F0000-memory.dmp

Filesize
64KB

Download
memory/2640-160-0x0000023CE77E0000-0x0000023CE77F0000-memory.dmp

Filesize
64KB

Download
memory/3796-136-0x0000027CA2830000-0x0000027CA2852000-memory.dmp

Filesize
136KB

Download
memory/3796-135-0x0000027C88090000-0x0000027C880A0000-memory.dmp

Filesize
64KB

Download
memory/4036-200-0x000001FDBFA40000-0x000001FDBFA50000-memory.dmp

Filesize
64KB

Download
memory/4036-199-0x000001FDBFA40000-0x000001FDBFA50000-memory.dmp

Filesize
64KB

Download
memory/4664-166-0x00000202FF700000-0x00000202FF71E000-memory.dmp

Filesize
120KB

Download
memory/4664-133-0x00000202FF3F0000-0x00000202FF42C000-memory.dmp

Filesize
240KB

Download
memory/4664-203-0x00000202FF6F0000-0x00000202FF6FA000-memory.dmp

Filesize
40KB

Download
memory/4664-204-0x00000202FF740000-0x00000202FF752000-memory.dmp

Filesize
72KB

Download
memory/4664-165-0x00000202FF7E0000-0x00000202FF830000-memory.dmp

Filesize
320KB

Download
memory/4664-164-0x00000202FF760000-0x00000202FF7D6000-memory.dmp

Filesize
472KB

Download
memory/4664-134-0x000002029A290000-0x000002029A2A0000-memory.dmp

Filesize
64KB

Download
memory/4664-224-0x000002029A480000-0x000002029A629000-memory.dmp

Filesize
1.7MB

Download