umbral | 419f948e7da8922465cefdda7d2a6b86adf6a6165c8bcf79963e5b2fd8a8f7d5

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
05/02/2024, 10:57

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General

Target

2222.exe
Size

227KB
MD5

2d609a4bb5b23b1811bf7f18c8d86504
SHA1

b3c21506848edd61dcc21e71ecbba740a9929f5b
SHA256

419f948e7da8922465cefdda7d2a6b86adf6a6165c8bcf79963e5b2fd8a8f7d5
SHA512

a73c96bba173c30e64a6d49a9da26b49fca44828f7d3aaa14d4070d1b55b0d0a891e3ba42565c6e94d4ebf085cbb6742b7f5c6956d1019d8fd4cdf07d13953e0
SSDEEP

6144:+loZMorIkd8g+EtXHkv/iD44Z44KInDAvZMK7bCpHb8e1mp8i:ooZHL+EP84Z44KInDAvZMK7bC9qV

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 2 IoCs

resource	yara_rule
behavioral1/memory/1200-0-0x0000000000F80000-0x0000000000FC0000-memory.dmp	family_umbral
behavioral1/memory/1200-2-0x000000001B300000-0x000000001B380000-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
T1552.001

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

Web Service

T1102

flow	ioc
8	discord.com
9	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
6	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2032	wmic.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2784	powershell.exe
2236	powershell.exe
2288	powershell.exe
1508	powershell.exe
1484	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1200	2222.exe
Token: SeDebugPrivilege	2784	powershell.exe
Token: SeDebugPrivilege	2236	powershell.exe
Token: SeDebugPrivilege	2288	powershell.exe
Token: SeDebugPrivilege	1508	powershell.exe
Token: SeIncreaseQuotaPrivilege	1900	wmic.exe
Token: SeSecurityPrivilege	1900	wmic.exe
Token: SeTakeOwnershipPrivilege	1900	wmic.exe
Token: SeLoadDriverPrivilege	1900	wmic.exe
Token: SeSystemProfilePrivilege	1900	wmic.exe
Token: SeSystemtimePrivilege	1900	wmic.exe
Token: SeProfSingleProcessPrivilege	1900	wmic.exe
Token: SeIncBasePriorityPrivilege	1900	wmic.exe
Token: SeCreatePagefilePrivilege	1900	wmic.exe
Token: SeBackupPrivilege	1900	wmic.exe
Token: SeRestorePrivilege	1900	wmic.exe
Token: SeShutdownPrivilege	1900	wmic.exe
Token: SeDebugPrivilege	1900	wmic.exe
Token: SeSystemEnvironmentPrivilege	1900	wmic.exe
Token: SeRemoteShutdownPrivilege	1900	wmic.exe
Token: SeUndockPrivilege	1900	wmic.exe
Token: SeManageVolumePrivilege	1900	wmic.exe
Token: 33	1900	wmic.exe
Token: 34	1900	wmic.exe
Token: 35	1900	wmic.exe
Token: SeIncreaseQuotaPrivilege	1900	wmic.exe
Token: SeSecurityPrivilege	1900	wmic.exe
Token: SeTakeOwnershipPrivilege	1900	wmic.exe
Token: SeLoadDriverPrivilege	1900	wmic.exe
Token: SeSystemProfilePrivilege	1900	wmic.exe
Token: SeSystemtimePrivilege	1900	wmic.exe
Token: SeProfSingleProcessPrivilege	1900	wmic.exe
Token: SeIncBasePriorityPrivilege	1900	wmic.exe
Token: SeCreatePagefilePrivilege	1900	wmic.exe
Token: SeBackupPrivilege	1900	wmic.exe
Token: SeRestorePrivilege	1900	wmic.exe
Token: SeShutdownPrivilege	1900	wmic.exe
Token: SeDebugPrivilege	1900	wmic.exe
Token: SeSystemEnvironmentPrivilege	1900	wmic.exe
Token: SeRemoteShutdownPrivilege	1900	wmic.exe
Token: SeUndockPrivilege	1900	wmic.exe
Token: SeManageVolumePrivilege	1900	wmic.exe
Token: 33	1900	wmic.exe
Token: 34	1900	wmic.exe
Token: 35	1900	wmic.exe
Token: SeIncreaseQuotaPrivilege	2504	wmic.exe
Token: SeSecurityPrivilege	2504	wmic.exe
Token: SeTakeOwnershipPrivilege	2504	wmic.exe
Token: SeLoadDriverPrivilege	2504	wmic.exe
Token: SeSystemProfilePrivilege	2504	wmic.exe
Token: SeSystemtimePrivilege	2504	wmic.exe
Token: SeProfSingleProcessPrivilege	2504	wmic.exe
Token: SeIncBasePriorityPrivilege	2504	wmic.exe
Token: SeCreatePagefilePrivilege	2504	wmic.exe
Token: SeBackupPrivilege	2504	wmic.exe
Token: SeRestorePrivilege	2504	wmic.exe
Token: SeShutdownPrivilege	2504	wmic.exe
Token: SeDebugPrivilege	2504	wmic.exe
Token: SeSystemEnvironmentPrivilege	2504	wmic.exe
Token: SeRemoteShutdownPrivilege	2504	wmic.exe
Token: SeUndockPrivilege	2504	wmic.exe
Token: SeManageVolumePrivilege	2504	wmic.exe
Token: 33	2504	wmic.exe
Token: 34	2504	wmic.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 2784	1200	2222.exe	28
PID 1200 wrote to memory of 2784	1200	2222.exe	28
PID 1200 wrote to memory of 2784	1200	2222.exe	28
PID 1200 wrote to memory of 2236	1200	2222.exe	30
PID 1200 wrote to memory of 2236	1200	2222.exe	30
PID 1200 wrote to memory of 2236	1200	2222.exe	30
PID 1200 wrote to memory of 2288	1200	2222.exe	33
PID 1200 wrote to memory of 2288	1200	2222.exe	33
PID 1200 wrote to memory of 2288	1200	2222.exe	33
PID 1200 wrote to memory of 1508	1200	2222.exe	35
PID 1200 wrote to memory of 1508	1200	2222.exe	35
PID 1200 wrote to memory of 1508	1200	2222.exe	35
PID 1200 wrote to memory of 1900	1200	2222.exe	37
PID 1200 wrote to memory of 1900	1200	2222.exe	37
PID 1200 wrote to memory of 1900	1200	2222.exe	37
PID 1200 wrote to memory of 2504	1200	2222.exe	40
PID 1200 wrote to memory of 2504	1200	2222.exe	40
PID 1200 wrote to memory of 2504	1200	2222.exe	40
PID 1200 wrote to memory of 2764	1200	2222.exe	42
PID 1200 wrote to memory of 2764	1200	2222.exe	42
PID 1200 wrote to memory of 2764	1200	2222.exe	42
PID 1200 wrote to memory of 1484	1200	2222.exe	44
PID 1200 wrote to memory of 1484	1200	2222.exe	44
PID 1200 wrote to memory of 1484	1200	2222.exe	44
PID 1200 wrote to memory of 2032	1200	2222.exe	46
PID 1200 wrote to memory of 2032	1200	2222.exe	46
PID 1200 wrote to memory of 2032	1200	2222.exe	46

C:\Users\Admin\AppData\Local\Temp\2222.exe
"C:\Users\Admin\AppData\Local\Temp\2222.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2222.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2784
- 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:2236
- 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:2288
- 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:1508
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1900
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2504
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2764
- 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:1484
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
99a4cd0b4f630d8812d93b4021754fa2

SHA1
0113a9ba83534ed12f2dd033da542e833427e29b

SHA256
b3e167c0ce9f1f93e84824f00004fcbbc4e0d41a7f6edbd8d8c10bdfe20aa462

SHA512
e6af606e32c7ac3919c762a2c11cdaabe17f65383775df5e001c8c90b85788e3be2f9a753a2a05db00affde7b57832e8fba1908cc611ed1d6de119925711bcfd

Download Submit
memory/1200-1-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download
memory/1200-2-0x000000001B300000-0x000000001B380000-memory.dmp

Filesize
512KB

Download
memory/1200-79-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download
memory/1200-56-0x000000001B300000-0x000000001B380000-memory.dmp

Filesize
512KB

Download
memory/1200-0-0x0000000000F80000-0x0000000000FC0000-memory.dmp

Filesize
256KB

Download
memory/1200-46-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download
memory/1484-72-0x0000000001EA0000-0x0000000001F20000-memory.dmp

Filesize
512KB

Download
memory/1484-75-0x000007FEED750000-0x000007FEEE0ED000-memory.dmp

Filesize
9.6MB

Download
memory/1484-71-0x0000000001EA0000-0x0000000001F20000-memory.dmp

Filesize
512KB

Download
memory/1484-74-0x000007FEED750000-0x000007FEEE0ED000-memory.dmp

Filesize
9.6MB

Download
memory/1484-73-0x0000000001EAB000-0x0000000001F12000-memory.dmp

Filesize
412KB

Download
memory/1484-70-0x0000000001EA0000-0x0000000001F20000-memory.dmp

Filesize
512KB

Download
memory/1484-68-0x000000001B2E0000-0x000000001B5C2000-memory.dmp

Filesize
2.9MB

Download
memory/1484-69-0x000007FEED750000-0x000007FEEE0ED000-memory.dmp

Filesize
9.6MB

Download
memory/1508-54-0x000007FEECDB0000-0x000007FEED74D000-memory.dmp

Filesize
9.6MB

Download
memory/1508-55-0x0000000002670000-0x00000000026F0000-memory.dmp

Filesize
512KB

Download
memory/1508-59-0x000007FEECDB0000-0x000007FEED74D000-memory.dmp

Filesize
9.6MB

Download
memory/1508-58-0x0000000002670000-0x00000000026F0000-memory.dmp

Filesize
512KB

Download
memory/1508-57-0x0000000002670000-0x00000000026F0000-memory.dmp

Filesize
512KB

Download
memory/1508-53-0x0000000002670000-0x00000000026F0000-memory.dmp

Filesize
512KB

Download
memory/1508-52-0x000007FEECDB0000-0x000007FEED74D000-memory.dmp

Filesize
9.6MB

Download
memory/2236-20-0x00000000025E0000-0x00000000025E8000-memory.dmp

Filesize
32KB

Download
memory/2236-18-0x000007FEECDB0000-0x000007FEED74D000-memory.dmp

Filesize
9.6MB

Download
memory/2236-17-0x000000001B1F0000-0x000000001B4D2000-memory.dmp

Filesize
2.9MB

Download
memory/2236-19-0x0000000002630000-0x00000000026B0000-memory.dmp

Filesize
512KB

Download
memory/2236-21-0x0000000002630000-0x00000000026B0000-memory.dmp

Filesize
512KB

Download
memory/2236-22-0x000007FEECDB0000-0x000007FEED74D000-memory.dmp

Filesize
9.6MB

Download
memory/2236-23-0x0000000002630000-0x00000000026B0000-memory.dmp

Filesize
512KB

Download
memory/2236-24-0x0000000002630000-0x00000000026B0000-memory.dmp

Filesize
512KB

Download
memory/2236-26-0x000007FEECDB0000-0x000007FEED74D000-memory.dmp

Filesize
9.6MB

Download
memory/2236-25-0x0000000002630000-0x00000000026B0000-memory.dmp

Filesize
512KB

Download
memory/2288-39-0x000007FEED750000-0x000007FEEE0ED000-memory.dmp

Filesize
9.6MB

Download
memory/2288-40-0x0000000002B20000-0x0000000002BA0000-memory.dmp

Filesize
512KB

Download
memory/2288-41-0x000007FEED750000-0x000007FEEE0ED000-memory.dmp

Filesize
9.6MB

Download
memory/2288-42-0x0000000002B20000-0x0000000002BA0000-memory.dmp

Filesize
512KB

Download
memory/2288-45-0x000007FEED750000-0x000007FEEE0ED000-memory.dmp

Filesize
9.6MB

Download
memory/2288-43-0x0000000002B20000-0x0000000002BA0000-memory.dmp

Filesize
512KB

Download
memory/2288-44-0x0000000002B2B000-0x0000000002B92000-memory.dmp

Filesize
412KB

Download
memory/2784-10-0x000007FEED750000-0x000007FEEE0ED000-memory.dmp

Filesize
9.6MB

Download
memory/2784-11-0x00000000026E0000-0x0000000002760000-memory.dmp

Filesize
512KB

Download
memory/2784-9-0x000007FEED750000-0x000007FEEE0ED000-memory.dmp

Filesize
9.6MB

Download
memory/2784-8-0x0000000001F50000-0x0000000001F58000-memory.dmp

Filesize
32KB

Download
memory/2784-7-0x000000001B220000-0x000000001B502000-memory.dmp

Filesize
2.9MB

Download