umbral | b0994dcb3d7268ace7b5fd363bf09683e2ba2d900149151602c277f36548c1a5

Analysis

max time kernel
146s
max time network
156s
platform
windows11-21h2_x64
resource
win11-20241023-en
resource tags

arch:x64arch:x86image:win11-20241023-enlocale:en-usos:windows11-21h2-x64system
submitted
04-01-2025 17:07

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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
behavioral3/memory/4184-1-0x0000019314BB0000-0x0000019314BF0000-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
4520	powershell.exe
2248	powershell.exe
1440	powershell.exe
1704	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Swift.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
6	discord.com
3	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
3	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
3860	PING.EXE
4912	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4928	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3860	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4184	Swift.exe
4520	powershell.exe
4520	powershell.exe
1704	powershell.exe
1704	powershell.exe
2248	powershell.exe
2248	powershell.exe
1696	powershell.exe
1696	powershell.exe
1440	powershell.exe
1440	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4184	Swift.exe
Token: SeIncreaseQuotaPrivilege	4908	wmic.exe
Token: SeSecurityPrivilege	4908	wmic.exe
Token: SeTakeOwnershipPrivilege	4908	wmic.exe
Token: SeLoadDriverPrivilege	4908	wmic.exe
Token: SeSystemProfilePrivilege	4908	wmic.exe
Token: SeSystemtimePrivilege	4908	wmic.exe
Token: SeProfSingleProcessPrivilege	4908	wmic.exe
Token: SeIncBasePriorityPrivilege	4908	wmic.exe
Token: SeCreatePagefilePrivilege	4908	wmic.exe
Token: SeBackupPrivilege	4908	wmic.exe
Token: SeRestorePrivilege	4908	wmic.exe
Token: SeShutdownPrivilege	4908	wmic.exe
Token: SeDebugPrivilege	4908	wmic.exe
Token: SeSystemEnvironmentPrivilege	4908	wmic.exe
Token: SeRemoteShutdownPrivilege	4908	wmic.exe
Token: SeUndockPrivilege	4908	wmic.exe
Token: SeManageVolumePrivilege	4908	wmic.exe
Token: 33	4908	wmic.exe
Token: 34	4908	wmic.exe
Token: 35	4908	wmic.exe
Token: 36	4908	wmic.exe
Token: SeIncreaseQuotaPrivilege	4908	wmic.exe
Token: SeSecurityPrivilege	4908	wmic.exe
Token: SeTakeOwnershipPrivilege	4908	wmic.exe
Token: SeLoadDriverPrivilege	4908	wmic.exe
Token: SeSystemProfilePrivilege	4908	wmic.exe
Token: SeSystemtimePrivilege	4908	wmic.exe
Token: SeProfSingleProcessPrivilege	4908	wmic.exe
Token: SeIncBasePriorityPrivilege	4908	wmic.exe
Token: SeCreatePagefilePrivilege	4908	wmic.exe
Token: SeBackupPrivilege	4908	wmic.exe
Token: SeRestorePrivilege	4908	wmic.exe
Token: SeShutdownPrivilege	4908	wmic.exe
Token: SeDebugPrivilege	4908	wmic.exe
Token: SeSystemEnvironmentPrivilege	4908	wmic.exe
Token: SeRemoteShutdownPrivilege	4908	wmic.exe
Token: SeUndockPrivilege	4908	wmic.exe
Token: SeManageVolumePrivilege	4908	wmic.exe
Token: 33	4908	wmic.exe
Token: 34	4908	wmic.exe
Token: 35	4908	wmic.exe
Token: 36	4908	wmic.exe
Token: SeDebugPrivilege	4520	powershell.exe
Token: SeDebugPrivilege	1704	powershell.exe
Token: SeDebugPrivilege	2248	powershell.exe
Token: SeDebugPrivilege	1696	powershell.exe
Token: SeIncreaseQuotaPrivilege	4884	wmic.exe
Token: SeSecurityPrivilege	4884	wmic.exe
Token: SeTakeOwnershipPrivilege	4884	wmic.exe
Token: SeLoadDriverPrivilege	4884	wmic.exe
Token: SeSystemProfilePrivilege	4884	wmic.exe
Token: SeSystemtimePrivilege	4884	wmic.exe
Token: SeProfSingleProcessPrivilege	4884	wmic.exe
Token: SeIncBasePriorityPrivilege	4884	wmic.exe
Token: SeCreatePagefilePrivilege	4884	wmic.exe
Token: SeBackupPrivilege	4884	wmic.exe
Token: SeRestorePrivilege	4884	wmic.exe
Token: SeShutdownPrivilege	4884	wmic.exe
Token: SeDebugPrivilege	4884	wmic.exe
Token: SeSystemEnvironmentPrivilege	4884	wmic.exe
Token: SeRemoteShutdownPrivilege	4884	wmic.exe
Token: SeUndockPrivilege	4884	wmic.exe
Token: SeManageVolumePrivilege	4884	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4184 wrote to memory of 4908	4184	Swift.exe	77
PID 4184 wrote to memory of 4908	4184	Swift.exe	77
PID 4184 wrote to memory of 3844	4184	Swift.exe	80
PID 4184 wrote to memory of 3844	4184	Swift.exe	80
PID 4184 wrote to memory of 4520	4184	Swift.exe	82
PID 4184 wrote to memory of 4520	4184	Swift.exe	82
PID 4184 wrote to memory of 1704	4184	Swift.exe	84
PID 4184 wrote to memory of 1704	4184	Swift.exe	84
PID 4184 wrote to memory of 2248	4184	Swift.exe	86
PID 4184 wrote to memory of 2248	4184	Swift.exe	86
PID 4184 wrote to memory of 1696	4184	Swift.exe	88
PID 4184 wrote to memory of 1696	4184	Swift.exe	88
PID 4184 wrote to memory of 4884	4184	Swift.exe	90
PID 4184 wrote to memory of 4884	4184	Swift.exe	90
PID 4184 wrote to memory of 1688	4184	Swift.exe	92
PID 4184 wrote to memory of 1688	4184	Swift.exe	92
PID 4184 wrote to memory of 4600	4184	Swift.exe	94
PID 4184 wrote to memory of 4600	4184	Swift.exe	94
PID 4184 wrote to memory of 1440	4184	Swift.exe	96
PID 4184 wrote to memory of 1440	4184	Swift.exe	96
PID 4184 wrote to memory of 4928	4184	Swift.exe	98
PID 4184 wrote to memory of 4928	4184	Swift.exe	98
PID 4184 wrote to memory of 4912	4184	Swift.exe	100
PID 4184 wrote to memory of 4912	4184	Swift.exe	100
PID 4912 wrote to memory of 3860	4912	cmd.exe	102
PID 4912 wrote to memory of 3860	4912	cmd.exe	102

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3844	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:4184
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4908
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Swift.exe"
  2⤵
  - Views/modifies file attributes
  PID:3844
- 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:4520
- 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:1704
- 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:2248
- 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:1696
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4884
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1688
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4600
- 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:1440
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4928
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Swift.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4912
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3860

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\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
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

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

Filesize
948B

MD5
fa21dd50b4e64421076f843031c8ccf7

SHA1
2c56e94f130c0d8d77116e939ffee4e37cf982bd

SHA256
e4f21aca1e12aafa8de7af24b79a75526e902c7d4b3fea5bdb6e723976997be3

SHA512
b8de2bfeb7af06c587dd1f424d410cf83471f31a55a3ea4c4481ce07ffd9bf66ddc1f7775ecd6ac65ac33baaec90ba5a208a9aefc84f31125a50dfb919982687

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

Filesize
1KB

MD5
0ac871344dc49ae49f13f0f88acb4868

SHA1
5a073862375c7e79255bb0eab32c635b57a77f98

SHA256
688f15b59a784f6f4c62554f00b5d0840d1489cef989c18126c70dfee0806d37

SHA512
ace5c50303bd27998607cf34ac4322bcf5edfbd19bbb24309acf4d037b6f3f7636c7c14b6ac0b924114e036252d3a1b998951c7068f41548728fa5d92f5f9006

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

Filesize
1KB

MD5
efe6ca07c76dac203e473a327e1a7fc4

SHA1
d0b2a86c08fdfa9540ff18e1b04715de97c7a781

SHA256
6f777418d52d9722ad5bb1940a4c171db3495f5685148e695a23ad5f74c613b0

SHA512
3dfc3f07e7c8c16d010f3cfa53e6a86af24c53747565a5bdb0aac12b33ed9bfe9bec0ba9f7717b18ef7d57f679375c6e7893fa2d6693a71f6c962cc383ae37ea

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_220w3x0c.2qa.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4184-68-0x00000193168D0000-0x00000193168DA000-memory.dmp

Filesize
40KB

Download
memory/4184-33-0x0000019316910000-0x000001931692E000-memory.dmp

Filesize
120KB

Download
memory/4184-88-0x00007FF878850000-0x00007FF879312000-memory.dmp

Filesize
10.8MB

Download
memory/4184-69-0x0000019316930000-0x0000019316942000-memory.dmp

Filesize
72KB

Download
memory/4184-2-0x00007FF878850000-0x00007FF879312000-memory.dmp

Filesize
10.8MB

Download
memory/4184-31-0x000001932F3C0000-0x000001932F436000-memory.dmp

Filesize
472KB

Download
memory/4184-32-0x000001932F440000-0x000001932F490000-memory.dmp

Filesize
320KB

Download
memory/4184-0-0x00007FF878853000-0x00007FF878855000-memory.dmp

Filesize
8KB

Download
memory/4184-1-0x0000019314BB0000-0x0000019314BF0000-memory.dmp

Filesize
256KB

Download
memory/4520-14-0x00007FF878850000-0x00007FF879312000-memory.dmp

Filesize
10.8MB

Download
memory/4520-9-0x00007FF878850000-0x00007FF879312000-memory.dmp

Filesize
10.8MB

Download
memory/4520-8-0x00000243BE310000-0x00000243BE332000-memory.dmp

Filesize
136KB

Download
memory/4520-10-0x00007FF878850000-0x00007FF879312000-memory.dmp

Filesize
10.8MB

Download
memory/4520-17-0x00007FF878850000-0x00007FF879312000-memory.dmp

Filesize
10.8MB

Download