umbral | b0994dcb3d7268ace7b5fd363bf09683e2ba2d900149151602c277f36548c1a5

Analysis

max time kernel
96s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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
behavioral1/memory/4132-1-0x000001DC32640000-0x000001DC32680000-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
3420	powershell.exe
728	powershell.exe
4992	powershell.exe
3164	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
21	discord.com
22	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
9	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
4964	cmd.exe
3256	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
540	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3256	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4132	Swift.exe
3420	powershell.exe
3420	powershell.exe
728	powershell.exe
728	powershell.exe
4992	powershell.exe
4992	powershell.exe
3736	powershell.exe
3736	powershell.exe
3164	powershell.exe
3164	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4132	Swift.exe
Token: SeIncreaseQuotaPrivilege	2224	wmic.exe
Token: SeSecurityPrivilege	2224	wmic.exe
Token: SeTakeOwnershipPrivilege	2224	wmic.exe
Token: SeLoadDriverPrivilege	2224	wmic.exe
Token: SeSystemProfilePrivilege	2224	wmic.exe
Token: SeSystemtimePrivilege	2224	wmic.exe
Token: SeProfSingleProcessPrivilege	2224	wmic.exe
Token: SeIncBasePriorityPrivilege	2224	wmic.exe
Token: SeCreatePagefilePrivilege	2224	wmic.exe
Token: SeBackupPrivilege	2224	wmic.exe
Token: SeRestorePrivilege	2224	wmic.exe
Token: SeShutdownPrivilege	2224	wmic.exe
Token: SeDebugPrivilege	2224	wmic.exe
Token: SeSystemEnvironmentPrivilege	2224	wmic.exe
Token: SeRemoteShutdownPrivilege	2224	wmic.exe
Token: SeUndockPrivilege	2224	wmic.exe
Token: SeManageVolumePrivilege	2224	wmic.exe
Token: 33	2224	wmic.exe
Token: 34	2224	wmic.exe
Token: 35	2224	wmic.exe
Token: 36	2224	wmic.exe
Token: SeIncreaseQuotaPrivilege	2224	wmic.exe
Token: SeSecurityPrivilege	2224	wmic.exe
Token: SeTakeOwnershipPrivilege	2224	wmic.exe
Token: SeLoadDriverPrivilege	2224	wmic.exe
Token: SeSystemProfilePrivilege	2224	wmic.exe
Token: SeSystemtimePrivilege	2224	wmic.exe
Token: SeProfSingleProcessPrivilege	2224	wmic.exe
Token: SeIncBasePriorityPrivilege	2224	wmic.exe
Token: SeCreatePagefilePrivilege	2224	wmic.exe
Token: SeBackupPrivilege	2224	wmic.exe
Token: SeRestorePrivilege	2224	wmic.exe
Token: SeShutdownPrivilege	2224	wmic.exe
Token: SeDebugPrivilege	2224	wmic.exe
Token: SeSystemEnvironmentPrivilege	2224	wmic.exe
Token: SeRemoteShutdownPrivilege	2224	wmic.exe
Token: SeUndockPrivilege	2224	wmic.exe
Token: SeManageVolumePrivilege	2224	wmic.exe
Token: 33	2224	wmic.exe
Token: 34	2224	wmic.exe
Token: 35	2224	wmic.exe
Token: 36	2224	wmic.exe
Token: SeDebugPrivilege	3420	powershell.exe
Token: SeDebugPrivilege	728	powershell.exe
Token: SeDebugPrivilege	4992	powershell.exe
Token: SeDebugPrivilege	3736	powershell.exe
Token: SeIncreaseQuotaPrivilege	2740	wmic.exe
Token: SeSecurityPrivilege	2740	wmic.exe
Token: SeTakeOwnershipPrivilege	2740	wmic.exe
Token: SeLoadDriverPrivilege	2740	wmic.exe
Token: SeSystemProfilePrivilege	2740	wmic.exe
Token: SeSystemtimePrivilege	2740	wmic.exe
Token: SeProfSingleProcessPrivilege	2740	wmic.exe
Token: SeIncBasePriorityPrivilege	2740	wmic.exe
Token: SeCreatePagefilePrivilege	2740	wmic.exe
Token: SeBackupPrivilege	2740	wmic.exe
Token: SeRestorePrivilege	2740	wmic.exe
Token: SeShutdownPrivilege	2740	wmic.exe
Token: SeDebugPrivilege	2740	wmic.exe
Token: SeSystemEnvironmentPrivilege	2740	wmic.exe
Token: SeRemoteShutdownPrivilege	2740	wmic.exe
Token: SeUndockPrivilege	2740	wmic.exe
Token: SeManageVolumePrivilege	2740	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4132 wrote to memory of 2224	4132	Swift.exe	83
PID 4132 wrote to memory of 2224	4132	Swift.exe	83
PID 4132 wrote to memory of 2560	4132	Swift.exe	86
PID 4132 wrote to memory of 2560	4132	Swift.exe	86
PID 4132 wrote to memory of 3420	4132	Swift.exe	88
PID 4132 wrote to memory of 3420	4132	Swift.exe	88
PID 4132 wrote to memory of 728	4132	Swift.exe	90
PID 4132 wrote to memory of 728	4132	Swift.exe	90
PID 4132 wrote to memory of 4992	4132	Swift.exe	92
PID 4132 wrote to memory of 4992	4132	Swift.exe	92
PID 4132 wrote to memory of 3736	4132	Swift.exe	94
PID 4132 wrote to memory of 3736	4132	Swift.exe	94
PID 4132 wrote to memory of 2740	4132	Swift.exe	96
PID 4132 wrote to memory of 2740	4132	Swift.exe	96
PID 4132 wrote to memory of 1768	4132	Swift.exe	98
PID 4132 wrote to memory of 1768	4132	Swift.exe	98
PID 4132 wrote to memory of 3788	4132	Swift.exe	100
PID 4132 wrote to memory of 3788	4132	Swift.exe	100
PID 4132 wrote to memory of 3164	4132	Swift.exe	102
PID 4132 wrote to memory of 3164	4132	Swift.exe	102
PID 4132 wrote to memory of 540	4132	Swift.exe	104
PID 4132 wrote to memory of 540	4132	Swift.exe	104
PID 4132 wrote to memory of 4964	4132	Swift.exe	106
PID 4132 wrote to memory of 4964	4132	Swift.exe	106
PID 4964 wrote to memory of 3256	4964	cmd.exe	108
PID 4964 wrote to memory of 3256	4964	cmd.exe	108

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2560	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:4132
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2224
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Swift.exe"
  2⤵
  - Views/modifies file attributes
  PID:2560
- 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:3420
- 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:728
- 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:4992
- 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:3736
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2740
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1768
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3788
- 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:3164
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:540
- 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:4964
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3256

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
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
948B

MD5
8bbd6908e148d61010a3130cb6aae4a0

SHA1
e74bcc1b0f762fcd7469d0621b9c7fe50b0c365d

SHA256
79c8ed7085737723dbc7c40b32d01ea400171787259b7458561cd5db60401023

SHA512
38057edb5f2ce86329f558bf34224c6110443635756b1b26da99f89b13e3f971bf602939f40d3fce8459cfdab4ad4fa4928ecb933ff045173535fcc46fe4855f

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

Filesize
1KB

MD5
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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

Filesize
1KB

MD5
3c35f7b2f6bf5443de1d82566512fe3b

SHA1
355dbf3ce740e7fe01d3fd3c017bcc0c750e0682

SHA256
49e38c50c964d79475b2571fa437b68392d506b0d2040cfe6882515fd50bcfee

SHA512
b8c70a6037528904a5274c0eeb937c6a8ac9eccfdf2741ff5cc6efc0574c4b54ad0342feffb558b0d777f64e5e6858bb1a0f62c35b06bef26eb4592d9c9dcb1b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z4jhgagg.wk4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3420-3-0x00007FFA5E2C0000-0x00007FFA5ED81000-memory.dmp

Filesize
10.8MB

Download
memory/3420-14-0x00007FFA5E2C0000-0x00007FFA5ED81000-memory.dmp

Filesize
10.8MB

Download
memory/3420-13-0x000002E9B0880000-0x000002E9B08A2000-memory.dmp

Filesize
136KB

Download
memory/3420-17-0x00007FFA5E2C0000-0x00007FFA5ED81000-memory.dmp

Filesize
10.8MB

Download
memory/4132-32-0x000001DC4CEC0000-0x000001DC4CF36000-memory.dmp

Filesize
472KB

Download
memory/4132-33-0x000001DC4CF40000-0x000001DC4CF90000-memory.dmp

Filesize
320KB

Download
memory/4132-34-0x000001DC4CC30000-0x000001DC4CC4E000-memory.dmp

Filesize
120KB

Download
memory/4132-0-0x00007FFA5E2C3000-0x00007FFA5E2C5000-memory.dmp

Filesize
8KB

Download
memory/4132-2-0x00007FFA5E2C0000-0x00007FFA5ED81000-memory.dmp

Filesize
10.8MB

Download
memory/4132-71-0x000001DC4CC10000-0x000001DC4CC1A000-memory.dmp

Filesize
40KB

Download
memory/4132-72-0x000001DC4CFD0000-0x000001DC4CFE2000-memory.dmp

Filesize
72KB

Download
memory/4132-1-0x000001DC32640000-0x000001DC32680000-memory.dmp

Filesize
256KB

Download
memory/4132-92-0x000001DC4CAE0000-0x000001DC4CBE2000-memory.dmp

Filesize
1.0MB

Download
memory/4132-93-0x00007FFA5E2C0000-0x00007FFA5ED81000-memory.dmp

Filesize
10.8MB

Download