umbral | 499282fecf90d5dcdf2b01ca4413c37477ec17b6068b43300dfeaefa1fb50978

Analysis

max time kernel
93s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15-04-2024 16:52

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General

Target

ClientBetaNew.exe
Size

229KB
MD5

e7fca17393a9f4cb9ccb2f65fc2bb214
SHA1

cef26fa30e3f68d85ab923beecc0cd0dbfa2a720
SHA256

499282fecf90d5dcdf2b01ca4413c37477ec17b6068b43300dfeaefa1fb50978
SHA512

303fe673e0d12410010971fb15ae58751948a7e0fb559e97acf5c73df0a7987dc8d423d59ebdfdfee79ef2696795ecf78543dcb74bebf6073a65229a2d24b80a
SSDEEP

6144:9loZM+rIkd8g+EtXHkv/iD4rzQumkrHM99YW3X2gyb8e1mtzi:foZtL+EP8rzQumkrHM99YW3X23Ie

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral3/memory/876-0-0x000001ED3E0F0000-0x000001ED3E130000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	ClientBetaNew.exe

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
T1552.001

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
42	discord.com
43	discord.com

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
10	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4896	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3432	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
876	ClientBetaNew.exe
2576	powershell.exe
2576	powershell.exe
2932	powershell.exe
2932	powershell.exe
4728	powershell.exe
4728	powershell.exe
3908	powershell.exe
3908	powershell.exe
1664	powershell.exe
1664	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	876	ClientBetaNew.exe
Token: SeIncreaseQuotaPrivilege	2060	wmic.exe
Token: SeSecurityPrivilege	2060	wmic.exe
Token: SeTakeOwnershipPrivilege	2060	wmic.exe
Token: SeLoadDriverPrivilege	2060	wmic.exe
Token: SeSystemProfilePrivilege	2060	wmic.exe
Token: SeSystemtimePrivilege	2060	wmic.exe
Token: SeProfSingleProcessPrivilege	2060	wmic.exe
Token: SeIncBasePriorityPrivilege	2060	wmic.exe
Token: SeCreatePagefilePrivilege	2060	wmic.exe
Token: SeBackupPrivilege	2060	wmic.exe
Token: SeRestorePrivilege	2060	wmic.exe
Token: SeShutdownPrivilege	2060	wmic.exe
Token: SeDebugPrivilege	2060	wmic.exe
Token: SeSystemEnvironmentPrivilege	2060	wmic.exe
Token: SeRemoteShutdownPrivilege	2060	wmic.exe
Token: SeUndockPrivilege	2060	wmic.exe
Token: SeManageVolumePrivilege	2060	wmic.exe
Token: 33	2060	wmic.exe
Token: 34	2060	wmic.exe
Token: 35	2060	wmic.exe
Token: 36	2060	wmic.exe
Token: SeIncreaseQuotaPrivilege	2060	wmic.exe
Token: SeSecurityPrivilege	2060	wmic.exe
Token: SeTakeOwnershipPrivilege	2060	wmic.exe
Token: SeLoadDriverPrivilege	2060	wmic.exe
Token: SeSystemProfilePrivilege	2060	wmic.exe
Token: SeSystemtimePrivilege	2060	wmic.exe
Token: SeProfSingleProcessPrivilege	2060	wmic.exe
Token: SeIncBasePriorityPrivilege	2060	wmic.exe
Token: SeCreatePagefilePrivilege	2060	wmic.exe
Token: SeBackupPrivilege	2060	wmic.exe
Token: SeRestorePrivilege	2060	wmic.exe
Token: SeShutdownPrivilege	2060	wmic.exe
Token: SeDebugPrivilege	2060	wmic.exe
Token: SeSystemEnvironmentPrivilege	2060	wmic.exe
Token: SeRemoteShutdownPrivilege	2060	wmic.exe
Token: SeUndockPrivilege	2060	wmic.exe
Token: SeManageVolumePrivilege	2060	wmic.exe
Token: 33	2060	wmic.exe
Token: 34	2060	wmic.exe
Token: 35	2060	wmic.exe
Token: 36	2060	wmic.exe
Token: SeDebugPrivilege	2576	powershell.exe
Token: SeDebugPrivilege	2932	powershell.exe
Token: SeDebugPrivilege	4728	powershell.exe
Token: SeDebugPrivilege	3908	powershell.exe
Token: SeIncreaseQuotaPrivilege	1472	wmic.exe
Token: SeSecurityPrivilege	1472	wmic.exe
Token: SeTakeOwnershipPrivilege	1472	wmic.exe
Token: SeLoadDriverPrivilege	1472	wmic.exe
Token: SeSystemProfilePrivilege	1472	wmic.exe
Token: SeSystemtimePrivilege	1472	wmic.exe
Token: SeProfSingleProcessPrivilege	1472	wmic.exe
Token: SeIncBasePriorityPrivilege	1472	wmic.exe
Token: SeCreatePagefilePrivilege	1472	wmic.exe
Token: SeBackupPrivilege	1472	wmic.exe
Token: SeRestorePrivilege	1472	wmic.exe
Token: SeShutdownPrivilege	1472	wmic.exe
Token: SeDebugPrivilege	1472	wmic.exe
Token: SeSystemEnvironmentPrivilege	1472	wmic.exe
Token: SeRemoteShutdownPrivilege	1472	wmic.exe
Token: SeUndockPrivilege	1472	wmic.exe
Token: SeManageVolumePrivilege	1472	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 876 wrote to memory of 2060	876	ClientBetaNew.exe	86
PID 876 wrote to memory of 2060	876	ClientBetaNew.exe	86
PID 876 wrote to memory of 64	876	ClientBetaNew.exe	90
PID 876 wrote to memory of 64	876	ClientBetaNew.exe	90
PID 876 wrote to memory of 2576	876	ClientBetaNew.exe	92
PID 876 wrote to memory of 2576	876	ClientBetaNew.exe	92
PID 876 wrote to memory of 2932	876	ClientBetaNew.exe	95
PID 876 wrote to memory of 2932	876	ClientBetaNew.exe	95
PID 876 wrote to memory of 4728	876	ClientBetaNew.exe	97
PID 876 wrote to memory of 4728	876	ClientBetaNew.exe	97
PID 876 wrote to memory of 3908	876	ClientBetaNew.exe	100
PID 876 wrote to memory of 3908	876	ClientBetaNew.exe	100
PID 876 wrote to memory of 1472	876	ClientBetaNew.exe	105
PID 876 wrote to memory of 1472	876	ClientBetaNew.exe	105
PID 876 wrote to memory of 3608	876	ClientBetaNew.exe	107
PID 876 wrote to memory of 3608	876	ClientBetaNew.exe	107
PID 876 wrote to memory of 2056	876	ClientBetaNew.exe	109
PID 876 wrote to memory of 2056	876	ClientBetaNew.exe	109
PID 876 wrote to memory of 1664	876	ClientBetaNew.exe	111
PID 876 wrote to memory of 1664	876	ClientBetaNew.exe	111
PID 876 wrote to memory of 4896	876	ClientBetaNew.exe	113
PID 876 wrote to memory of 4896	876	ClientBetaNew.exe	113
PID 876 wrote to memory of 5000	876	ClientBetaNew.exe	116
PID 876 wrote to memory of 5000	876	ClientBetaNew.exe	116
PID 5000 wrote to memory of 3432	5000	cmd.exe	118
PID 5000 wrote to memory of 3432	5000	cmd.exe	118

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
64	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ClientBetaNew.exe
"C:\Users\Admin\AppData\Local\Temp\ClientBetaNew.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:876
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2060
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\ClientBetaNew.exe"
  2⤵
  - Views/modifies file attributes
  PID:64
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\ClientBetaNew.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2576
- 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:2932
- 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:4728
- 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:3908
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1472
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3608
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2056
- 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:1664
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4896
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\ClientBetaNew.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5000
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:3432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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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
1KB

MD5
2b177ee51274376214d9f897a4cb90d2

SHA1
6cd0e8f9d48257d5824b700d1d02f6fde583b41f

SHA256
55e37da08076fdb55cfcb3ba36bf305ab5a306734d6294280daa4c92481a5339

SHA512
5d40f255cea9bdcf2b9576f393ea9246cfba9b910b5960e74c4bf1fe1d2dd53108341d20baf8f963e839694a112a51df4a720c52039699c2c99b4f7cb915624e

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

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
966914e2e771de7a4a57a95b6ecfa8a9

SHA1
7a32282fd51dd032967ed4d9a40cc57e265aeff2

SHA256
98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

SHA512
dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

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

Filesize
1KB

MD5
88be3bc8a7f90e3953298c0fdbec4d72

SHA1
f4969784ad421cc80ef45608727aacd0f6bf2e4b

SHA256
533c8470b41084e40c5660569ebbdb7496520d449629a235e8053e84025f348a

SHA512
4fce64e2dacddbc03314048fef1ce356ee2647c14733da121c23c65507eeb8d721d6b690ad5463319b364dc4fa95904ad6ab096907f32918e3406ef438a6ef7c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3tspjlr1.hwv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/876-36-0x000001ED58890000-0x000001ED58906000-memory.dmp

Filesize
472KB

Download
memory/876-37-0x000001ED3FDB0000-0x000001ED3FE00000-memory.dmp

Filesize
320KB

Download
memory/876-76-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/876-2-0x000001ED58780000-0x000001ED58790000-memory.dmp

Filesize
64KB

Download
memory/876-85-0x000001ED58750000-0x000001ED58762000-memory.dmp

Filesize
72KB

Download
memory/876-0-0x000001ED3E0F0000-0x000001ED3E130000-memory.dmp

Filesize
256KB

Download
memory/876-107-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/876-1-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/876-84-0x000001ED3FE00000-0x000001ED3FE0A000-memory.dmp

Filesize
40KB

Download
memory/876-88-0x000001ED58780000-0x000001ED58790000-memory.dmp

Filesize
64KB

Download
memory/876-38-0x000001ED3FD80000-0x000001ED3FD9E000-memory.dmp

Filesize
120KB

Download
memory/1664-102-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/1664-90-0x000001B3509B0000-0x000001B3509C0000-memory.dmp

Filesize
64KB

Download
memory/1664-89-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/2576-11-0x000002A8A06C0000-0x000002A8A06D0000-memory.dmp

Filesize
64KB

Download
memory/2576-12-0x000002A8A06C0000-0x000002A8A06D0000-memory.dmp

Filesize
64KB

Download
memory/2576-9-0x000002A8A0680000-0x000002A8A06A2000-memory.dmp

Filesize
136KB

Download
memory/2576-10-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/2576-18-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/2932-21-0x000001ED12C00000-0x000001ED12C10000-memory.dmp

Filesize
64KB

Download
memory/2932-108-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/2932-22-0x000001ED12C00000-0x000001ED12C10000-memory.dmp

Filesize
64KB

Download
memory/2932-20-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/3908-78-0x0000013FF06B0000-0x0000013FF06C0000-memory.dmp

Filesize
64KB

Download
memory/3908-82-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/3908-79-0x0000013FF06B0000-0x0000013FF06C0000-memory.dmp

Filesize
64KB

Download
memory/3908-77-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/4728-66-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download
memory/4728-64-0x00000202DC920000-0x00000202DC930000-memory.dmp

Filesize
64KB

Download
memory/4728-41-0x00000202DC920000-0x00000202DC930000-memory.dmp

Filesize
64KB

Download
memory/4728-40-0x00000202DC920000-0x00000202DC930000-memory.dmp

Filesize
64KB

Download
memory/4728-39-0x00007FFE359F0000-0x00007FFE364B1000-memory.dmp

Filesize
10.8MB

Download