umbral | b0994dcb3d7268ace7b5fd363bf09683e2ba2d900149151602c277f36548c1a5

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/01/2025, 17:11

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General

Target

Swift.exe
Size

231KB
MD5

6e2fe62ba106a5e869fabb48565305ed
SHA1

56a781fe3ed0182ae22c6c10690d2ae4e870be6e
SHA256

b0994dcb3d7268ace7b5fd363bf09683e2ba2d900149151602c277f36548c1a5
SHA512

48759991bed49f9366f088b15a3794c45189951b73aba3b977b16070d51067b2216c3740654c387fcc28bef159393c0d01923c84d1f029b8412957652fb9867e
SSDEEP

6144:RloZM+rIkd8g+EtXHkv/iD4j0iWVjgULryD1Ac5hJ5b8e1mDvi:joZtL+EP8j0iWVjgULryD1Ac5vRR

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2520-1-0x0000000000AB0000-0x0000000000AF0000-memory.dmp	family_umbral

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

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2772	powershell.exe
2816	powershell.exe
1708	powershell.exe
1476	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Deletes itself 1 IoCs

pid	Process
2876	cmd.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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

Web Service

T1102

flow	ioc
9	discord.com
10	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

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2876	cmd.exe
2152	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2628	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2152	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2520	Swift.exe
2772	powershell.exe
2816	powershell.exe
1708	powershell.exe
2436	powershell.exe
1476	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	Swift.exe
Token: SeIncreaseQuotaPrivilege	1916	wmic.exe
Token: SeSecurityPrivilege	1916	wmic.exe
Token: SeTakeOwnershipPrivilege	1916	wmic.exe
Token: SeLoadDriverPrivilege	1916	wmic.exe
Token: SeSystemProfilePrivilege	1916	wmic.exe
Token: SeSystemtimePrivilege	1916	wmic.exe
Token: SeProfSingleProcessPrivilege	1916	wmic.exe
Token: SeIncBasePriorityPrivilege	1916	wmic.exe
Token: SeCreatePagefilePrivilege	1916	wmic.exe
Token: SeBackupPrivilege	1916	wmic.exe
Token: SeRestorePrivilege	1916	wmic.exe
Token: SeShutdownPrivilege	1916	wmic.exe
Token: SeDebugPrivilege	1916	wmic.exe
Token: SeSystemEnvironmentPrivilege	1916	wmic.exe
Token: SeRemoteShutdownPrivilege	1916	wmic.exe
Token: SeUndockPrivilege	1916	wmic.exe
Token: SeManageVolumePrivilege	1916	wmic.exe
Token: 33	1916	wmic.exe
Token: 34	1916	wmic.exe
Token: 35	1916	wmic.exe
Token: SeIncreaseQuotaPrivilege	1916	wmic.exe
Token: SeSecurityPrivilege	1916	wmic.exe
Token: SeTakeOwnershipPrivilege	1916	wmic.exe
Token: SeLoadDriverPrivilege	1916	wmic.exe
Token: SeSystemProfilePrivilege	1916	wmic.exe
Token: SeSystemtimePrivilege	1916	wmic.exe
Token: SeProfSingleProcessPrivilege	1916	wmic.exe
Token: SeIncBasePriorityPrivilege	1916	wmic.exe
Token: SeCreatePagefilePrivilege	1916	wmic.exe
Token: SeBackupPrivilege	1916	wmic.exe
Token: SeRestorePrivilege	1916	wmic.exe
Token: SeShutdownPrivilege	1916	wmic.exe
Token: SeDebugPrivilege	1916	wmic.exe
Token: SeSystemEnvironmentPrivilege	1916	wmic.exe
Token: SeRemoteShutdownPrivilege	1916	wmic.exe
Token: SeUndockPrivilege	1916	wmic.exe
Token: SeManageVolumePrivilege	1916	wmic.exe
Token: 33	1916	wmic.exe
Token: 34	1916	wmic.exe
Token: 35	1916	wmic.exe
Token: SeDebugPrivilege	2772	powershell.exe
Token: SeDebugPrivilege	2816	powershell.exe
Token: SeDebugPrivilege	1708	powershell.exe
Token: SeDebugPrivilege	2436	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

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 1916	2520	Swift.exe	30
PID 2520 wrote to memory of 1916	2520	Swift.exe	30
PID 2520 wrote to memory of 1916	2520	Swift.exe	30
PID 2520 wrote to memory of 2696	2520	Swift.exe	33
PID 2520 wrote to memory of 2696	2520	Swift.exe	33
PID 2520 wrote to memory of 2696	2520	Swift.exe	33
PID 2520 wrote to memory of 2772	2520	Swift.exe	35
PID 2520 wrote to memory of 2772	2520	Swift.exe	35
PID 2520 wrote to memory of 2772	2520	Swift.exe	35
PID 2520 wrote to memory of 2816	2520	Swift.exe	37
PID 2520 wrote to memory of 2816	2520	Swift.exe	37
PID 2520 wrote to memory of 2816	2520	Swift.exe	37
PID 2520 wrote to memory of 1708	2520	Swift.exe	39
PID 2520 wrote to memory of 1708	2520	Swift.exe	39
PID 2520 wrote to memory of 1708	2520	Swift.exe	39
PID 2520 wrote to memory of 2436	2520	Swift.exe	41
PID 2520 wrote to memory of 2436	2520	Swift.exe	41
PID 2520 wrote to memory of 2436	2520	Swift.exe	41
PID 2520 wrote to memory of 1900	2520	Swift.exe	43
PID 2520 wrote to memory of 1900	2520	Swift.exe	43
PID 2520 wrote to memory of 1900	2520	Swift.exe	43
PID 2520 wrote to memory of 1928	2520	Swift.exe	45
PID 2520 wrote to memory of 1928	2520	Swift.exe	45
PID 2520 wrote to memory of 1928	2520	Swift.exe	45
PID 2520 wrote to memory of 1248	2520	Swift.exe	47
PID 2520 wrote to memory of 1248	2520	Swift.exe	47
PID 2520 wrote to memory of 1248	2520	Swift.exe	47
PID 2520 wrote to memory of 1476	2520	Swift.exe	49
PID 2520 wrote to memory of 1476	2520	Swift.exe	49
PID 2520 wrote to memory of 1476	2520	Swift.exe	49
PID 2520 wrote to memory of 2628	2520	Swift.exe	51
PID 2520 wrote to memory of 2628	2520	Swift.exe	51
PID 2520 wrote to memory of 2628	2520	Swift.exe	51
PID 2520 wrote to memory of 2876	2520	Swift.exe	53
PID 2520 wrote to memory of 2876	2520	Swift.exe	53
PID 2520 wrote to memory of 2876	2520	Swift.exe	53
PID 2876 wrote to memory of 2152	2876	cmd.exe	55
PID 2876 wrote to memory of 2152	2876	cmd.exe	55
PID 2876 wrote to memory of 2152	2876	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2696	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Swift.exe
"C:\Users\Admin\AppData\Local\Temp\Swift.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1916
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Swift.exe"
  2⤵
  - Views/modifies file attributes
  PID:2696
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Swift.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2772
- 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⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2816
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1708
- 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:2436
- 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⤵
  PID:1928
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1248
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:1476
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2628
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Swift.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2152

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

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
d1fb40c535b973d276ac960129e8811d

SHA1
f3d1c8ec6580b2209c4f212f8824944cdb96820f

SHA256
6fc1f4a7a7d0308afc277925e1c4f75ffcf70de776f288e0cab64ca679fdd5b6

SHA512
d1043d2bc09ce5a653098a8e3a43bb3cc3b789dc96e3e46fe1a58ae2c8f4057bfee6eae2a9beb0756f1a30c1202fe62aa89dca4d506c342131469ed5dfc2b1a3

Download Submit
memory/1476-42-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download
memory/2520-0-0x000007FEF5393000-0x000007FEF5394000-memory.dmp

Filesize
4KB

Download
memory/2520-1-0x0000000000AB0000-0x0000000000AF0000-memory.dmp

Filesize
256KB

Download
memory/2520-2-0x000007FEF5390000-0x000007FEF5D7C000-memory.dmp

Filesize
9.9MB

Download
memory/2520-46-0x000007FEF5390000-0x000007FEF5D7C000-memory.dmp

Filesize
9.9MB

Download
memory/2772-7-0x000000001B690000-0x000000001B972000-memory.dmp

Filesize
2.9MB

Download
memory/2772-8-0x0000000001EA0000-0x0000000001EA8000-memory.dmp

Filesize
32KB

Download
memory/2816-14-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2816-15-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download