umbral | c6e3deb37384306e5bc08d51469e978c001ee54cf0ad8baa59942eda2c849b6b

Analysis

max time kernel
94s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2025, 19:32

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General

Target

sws.exe
Size

227KB
MD5

46fb05503b2ba89656a6b2f95e5572ad
SHA1

01dac03ded08fc26c42fd88c77090aa6f4cea70e
SHA256

c6e3deb37384306e5bc08d51469e978c001ee54cf0ad8baa59942eda2c849b6b
SHA512

7bf112ab9a4df51776c75bd933af3400ec909473389238e13797b61e055236cfacc02d06558061c03a542c3fda0d1575b19646029a2b09c9e45119bf699934a0
SSDEEP

6144:eloZM+rIkd8g+EtXHkv/iD43tny5nsAvpOXZkQlK8Zb8e1m8hEi:IoZtL+EP83tny5nsAvpOXZkQlr9

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3652-1-0x00000283268D0000-0x0000028326910000-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
1460	powershell.exe
4360	powershell.exe
4960	powershell.exe
4424	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	sws.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
23	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
1056	cmd.exe
1276	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2136	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1276	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3652	sws.exe
1460	powershell.exe
1460	powershell.exe
4424	powershell.exe
4424	powershell.exe
4360	powershell.exe
4360	powershell.exe
768	powershell.exe
768	powershell.exe
4960	powershell.exe
4960	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3652	sws.exe
Token: SeIncreaseQuotaPrivilege	2484	wmic.exe
Token: SeSecurityPrivilege	2484	wmic.exe
Token: SeTakeOwnershipPrivilege	2484	wmic.exe
Token: SeLoadDriverPrivilege	2484	wmic.exe
Token: SeSystemProfilePrivilege	2484	wmic.exe
Token: SeSystemtimePrivilege	2484	wmic.exe
Token: SeProfSingleProcessPrivilege	2484	wmic.exe
Token: SeIncBasePriorityPrivilege	2484	wmic.exe
Token: SeCreatePagefilePrivilege	2484	wmic.exe
Token: SeBackupPrivilege	2484	wmic.exe
Token: SeRestorePrivilege	2484	wmic.exe
Token: SeShutdownPrivilege	2484	wmic.exe
Token: SeDebugPrivilege	2484	wmic.exe
Token: SeSystemEnvironmentPrivilege	2484	wmic.exe
Token: SeRemoteShutdownPrivilege	2484	wmic.exe
Token: SeUndockPrivilege	2484	wmic.exe
Token: SeManageVolumePrivilege	2484	wmic.exe
Token: 33	2484	wmic.exe
Token: 34	2484	wmic.exe
Token: 35	2484	wmic.exe
Token: 36	2484	wmic.exe
Token: SeIncreaseQuotaPrivilege	2484	wmic.exe
Token: SeSecurityPrivilege	2484	wmic.exe
Token: SeTakeOwnershipPrivilege	2484	wmic.exe
Token: SeLoadDriverPrivilege	2484	wmic.exe
Token: SeSystemProfilePrivilege	2484	wmic.exe
Token: SeSystemtimePrivilege	2484	wmic.exe
Token: SeProfSingleProcessPrivilege	2484	wmic.exe
Token: SeIncBasePriorityPrivilege	2484	wmic.exe
Token: SeCreatePagefilePrivilege	2484	wmic.exe
Token: SeBackupPrivilege	2484	wmic.exe
Token: SeRestorePrivilege	2484	wmic.exe
Token: SeShutdownPrivilege	2484	wmic.exe
Token: SeDebugPrivilege	2484	wmic.exe
Token: SeSystemEnvironmentPrivilege	2484	wmic.exe
Token: SeRemoteShutdownPrivilege	2484	wmic.exe
Token: SeUndockPrivilege	2484	wmic.exe
Token: SeManageVolumePrivilege	2484	wmic.exe
Token: 33	2484	wmic.exe
Token: 34	2484	wmic.exe
Token: 35	2484	wmic.exe
Token: 36	2484	wmic.exe
Token: SeDebugPrivilege	1460	powershell.exe
Token: SeDebugPrivilege	4424	powershell.exe
Token: SeDebugPrivilege	4360	powershell.exe
Token: SeDebugPrivilege	768	powershell.exe
Token: SeIncreaseQuotaPrivilege	1444	wmic.exe
Token: SeSecurityPrivilege	1444	wmic.exe
Token: SeTakeOwnershipPrivilege	1444	wmic.exe
Token: SeLoadDriverPrivilege	1444	wmic.exe
Token: SeSystemProfilePrivilege	1444	wmic.exe
Token: SeSystemtimePrivilege	1444	wmic.exe
Token: SeProfSingleProcessPrivilege	1444	wmic.exe
Token: SeIncBasePriorityPrivilege	1444	wmic.exe
Token: SeCreatePagefilePrivilege	1444	wmic.exe
Token: SeBackupPrivilege	1444	wmic.exe
Token: SeRestorePrivilege	1444	wmic.exe
Token: SeShutdownPrivilege	1444	wmic.exe
Token: SeDebugPrivilege	1444	wmic.exe
Token: SeSystemEnvironmentPrivilege	1444	wmic.exe
Token: SeRemoteShutdownPrivilege	1444	wmic.exe
Token: SeUndockPrivilege	1444	wmic.exe
Token: SeManageVolumePrivilege	1444	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 2484	3652	sws.exe	82
PID 3652 wrote to memory of 2484	3652	sws.exe	82
PID 3652 wrote to memory of 1968	3652	sws.exe	85
PID 3652 wrote to memory of 1968	3652	sws.exe	85
PID 3652 wrote to memory of 1460	3652	sws.exe	87
PID 3652 wrote to memory of 1460	3652	sws.exe	87
PID 3652 wrote to memory of 4424	3652	sws.exe	89
PID 3652 wrote to memory of 4424	3652	sws.exe	89
PID 3652 wrote to memory of 4360	3652	sws.exe	91
PID 3652 wrote to memory of 4360	3652	sws.exe	91
PID 3652 wrote to memory of 768	3652	sws.exe	93
PID 3652 wrote to memory of 768	3652	sws.exe	93
PID 3652 wrote to memory of 1444	3652	sws.exe	95
PID 3652 wrote to memory of 1444	3652	sws.exe	95
PID 3652 wrote to memory of 2284	3652	sws.exe	97
PID 3652 wrote to memory of 2284	3652	sws.exe	97
PID 3652 wrote to memory of 1688	3652	sws.exe	99
PID 3652 wrote to memory of 1688	3652	sws.exe	99
PID 3652 wrote to memory of 4960	3652	sws.exe	101
PID 3652 wrote to memory of 4960	3652	sws.exe	101
PID 3652 wrote to memory of 2136	3652	sws.exe	103
PID 3652 wrote to memory of 2136	3652	sws.exe	103
PID 3652 wrote to memory of 1056	3652	sws.exe	105
PID 3652 wrote to memory of 1056	3652	sws.exe	105
PID 1056 wrote to memory of 1276	1056	cmd.exe	107
PID 1056 wrote to memory of 1276	1056	cmd.exe	107

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
1968	attrib.exe

C:\Users\Admin\AppData\Local\Temp\sws.exe
"C:\Users\Admin\AppData\Local\Temp\sws.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3652
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2484
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\sws.exe"
  2⤵
  - Views/modifies file attributes
  PID:1968
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\sws.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1460
- 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:4424
- 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:4360
- 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:768
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1444
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2284
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1688
- 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:4960
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2136
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\sws.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1056
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1276

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
3a6bad9528f8e23fb5c77fbd81fa28e8

SHA1
f127317c3bc6407f536c0f0600dcbcf1aabfba36

SHA256
986366767de5873f1b170a63f2a33ce05132d1afd90c8f5017afbca8ef1beb05

SHA512
846002154a0ece6f3e9feda6f115d3161dc21b3789525dd62ae1d9188495171293efdbe7be4710666dd8a15e66b557315b5a02918a741ed1d5f3ff0c515b98e2

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

Filesize
948B

MD5
966914e2e771de7a4a57a95b6ecfa8a9

SHA1
7a32282fd51dd032967ed4d9a40cc57e265aeff2

SHA256
98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

SHA512
dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

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

Filesize
1KB

MD5
548dd08570d121a65e82abb7171cae1c

SHA1
1a1b5084b3a78f3acd0d811cc79dbcac121217ab

SHA256
cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc

SHA512
37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

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

Filesize
1KB

MD5
14096fbe470a190011f31dba4c4307ae

SHA1
83e2c46b3e1c14779d7aea8497ad802fbc89d01e

SHA256
8b66640600b8c05b4af2c978d3bdb778ddc2f835ea65297e6d9e9e060a256f39

SHA512
1687e378b3c0e92a30018f40092546c5cbfa38a5b5371d424834fd5c5cd02ebd52901f189385661e624a05e4ecb54f12841f970afae6e92a53da9551d95a3f75

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_h0leomxe.c23.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1460-11-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/1460-3-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/1460-15-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/1460-18-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/1460-4-0x000001FA64010000-0x000001FA64032000-memory.dmp

Filesize
136KB

Download
memory/3652-34-0x00000283285A0000-0x00000283285F0000-memory.dmp

Filesize
320KB

Download
memory/3652-33-0x0000028341050000-0x00000283410C6000-memory.dmp

Filesize
472KB

Download
memory/3652-35-0x00000283410D0000-0x00000283410EE000-memory.dmp

Filesize
120KB

Download
memory/3652-1-0x00000283268D0000-0x0000028326910000-memory.dmp

Filesize
256KB

Download
memory/3652-0-0x00007FF814CB3000-0x00007FF814CB5000-memory.dmp

Filesize
8KB

Download
memory/3652-72-0x0000028328570000-0x000002832857A000-memory.dmp

Filesize
40KB

Download
memory/3652-73-0x00000283285F0000-0x0000028328602000-memory.dmp

Filesize
72KB

Download
memory/3652-2-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/3652-93-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download