umbral | b0994dcb3d7268ace7b5fd363bf09683e2ba2d900149151602c277f36548c1a5

Analysis

max time kernel
99s
max time network
144s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-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
behavioral2/memory/5064-1-0x000002B35E140000-0x000002B35E180000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3260	powershell.exe
4740	powershell.exe
2484	powershell.exe
4248	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
24	discord.com
25	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
7	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
3052	cmd.exe
4464	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2900	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4464	PING.EXE

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2092	wmic.exe
2092	wmic.exe
2092	wmic.exe
2092	wmic.exe
5064	Swift.exe
4248	powershell.exe
4248	powershell.exe
3260	powershell.exe
3260	powershell.exe
4740	powershell.exe
4740	powershell.exe
3968	powershell.exe
3968	powershell.exe
3668	wmic.exe
3668	wmic.exe
3668	wmic.exe
3668	wmic.exe
3596	wmic.exe
3596	wmic.exe
3596	wmic.exe
3596	wmic.exe
1204	wmic.exe
1204	wmic.exe
1204	wmic.exe
1204	wmic.exe
2484	powershell.exe
2484	powershell.exe
2900	wmic.exe
2900	wmic.exe
2900	wmic.exe
2900	wmic.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5064	Swift.exe
Token: SeIncreaseQuotaPrivilege	2092	wmic.exe
Token: SeSecurityPrivilege	2092	wmic.exe
Token: SeTakeOwnershipPrivilege	2092	wmic.exe
Token: SeLoadDriverPrivilege	2092	wmic.exe
Token: SeSystemProfilePrivilege	2092	wmic.exe
Token: SeSystemtimePrivilege	2092	wmic.exe
Token: SeProfSingleProcessPrivilege	2092	wmic.exe
Token: SeIncBasePriorityPrivilege	2092	wmic.exe
Token: SeCreatePagefilePrivilege	2092	wmic.exe
Token: SeBackupPrivilege	2092	wmic.exe
Token: SeRestorePrivilege	2092	wmic.exe
Token: SeShutdownPrivilege	2092	wmic.exe
Token: SeDebugPrivilege	2092	wmic.exe
Token: SeSystemEnvironmentPrivilege	2092	wmic.exe
Token: SeRemoteShutdownPrivilege	2092	wmic.exe
Token: SeUndockPrivilege	2092	wmic.exe
Token: SeManageVolumePrivilege	2092	wmic.exe
Token: 33	2092	wmic.exe
Token: 34	2092	wmic.exe
Token: 35	2092	wmic.exe
Token: 36	2092	wmic.exe
Token: SeIncreaseQuotaPrivilege	2092	wmic.exe
Token: SeSecurityPrivilege	2092	wmic.exe
Token: SeTakeOwnershipPrivilege	2092	wmic.exe
Token: SeLoadDriverPrivilege	2092	wmic.exe
Token: SeSystemProfilePrivilege	2092	wmic.exe
Token: SeSystemtimePrivilege	2092	wmic.exe
Token: SeProfSingleProcessPrivilege	2092	wmic.exe
Token: SeIncBasePriorityPrivilege	2092	wmic.exe
Token: SeCreatePagefilePrivilege	2092	wmic.exe
Token: SeBackupPrivilege	2092	wmic.exe
Token: SeRestorePrivilege	2092	wmic.exe
Token: SeShutdownPrivilege	2092	wmic.exe
Token: SeDebugPrivilege	2092	wmic.exe
Token: SeSystemEnvironmentPrivilege	2092	wmic.exe
Token: SeRemoteShutdownPrivilege	2092	wmic.exe
Token: SeUndockPrivilege	2092	wmic.exe
Token: SeManageVolumePrivilege	2092	wmic.exe
Token: 33	2092	wmic.exe
Token: 34	2092	wmic.exe
Token: 35	2092	wmic.exe
Token: 36	2092	wmic.exe
Token: SeDebugPrivilege	4248	powershell.exe
Token: SeIncreaseQuotaPrivilege	4248	powershell.exe
Token: SeSecurityPrivilege	4248	powershell.exe
Token: SeTakeOwnershipPrivilege	4248	powershell.exe
Token: SeLoadDriverPrivilege	4248	powershell.exe
Token: SeSystemProfilePrivilege	4248	powershell.exe
Token: SeSystemtimePrivilege	4248	powershell.exe
Token: SeProfSingleProcessPrivilege	4248	powershell.exe
Token: SeIncBasePriorityPrivilege	4248	powershell.exe
Token: SeCreatePagefilePrivilege	4248	powershell.exe
Token: SeBackupPrivilege	4248	powershell.exe
Token: SeRestorePrivilege	4248	powershell.exe
Token: SeShutdownPrivilege	4248	powershell.exe
Token: SeDebugPrivilege	4248	powershell.exe
Token: SeSystemEnvironmentPrivilege	4248	powershell.exe
Token: SeRemoteShutdownPrivilege	4248	powershell.exe
Token: SeUndockPrivilege	4248	powershell.exe
Token: SeManageVolumePrivilege	4248	powershell.exe
Token: 33	4248	powershell.exe
Token: 34	4248	powershell.exe
Token: 35	4248	powershell.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 2092	5064	Swift.exe	81
PID 5064 wrote to memory of 2092	5064	Swift.exe	81
PID 5064 wrote to memory of 1040	5064	Swift.exe	84
PID 5064 wrote to memory of 1040	5064	Swift.exe	84
PID 5064 wrote to memory of 4248	5064	Swift.exe	86
PID 5064 wrote to memory of 4248	5064	Swift.exe	86
PID 5064 wrote to memory of 3260	5064	Swift.exe	90
PID 5064 wrote to memory of 3260	5064	Swift.exe	90
PID 5064 wrote to memory of 4740	5064	Swift.exe	92
PID 5064 wrote to memory of 4740	5064	Swift.exe	92
PID 5064 wrote to memory of 3968	5064	Swift.exe	94
PID 5064 wrote to memory of 3968	5064	Swift.exe	94
PID 5064 wrote to memory of 3668	5064	Swift.exe	96
PID 5064 wrote to memory of 3668	5064	Swift.exe	96
PID 5064 wrote to memory of 3596	5064	Swift.exe	98
PID 5064 wrote to memory of 3596	5064	Swift.exe	98
PID 5064 wrote to memory of 1204	5064	Swift.exe	100
PID 5064 wrote to memory of 1204	5064	Swift.exe	100
PID 5064 wrote to memory of 2484	5064	Swift.exe	102
PID 5064 wrote to memory of 2484	5064	Swift.exe	102
PID 5064 wrote to memory of 2900	5064	Swift.exe	104
PID 5064 wrote to memory of 2900	5064	Swift.exe	104
PID 5064 wrote to memory of 3052	5064	Swift.exe	108
PID 5064 wrote to memory of 3052	5064	Swift.exe	108
PID 3052 wrote to memory of 4464	3052	cmd.exe	110
PID 3052 wrote to memory of 4464	3052	cmd.exe	110

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1040	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:5064
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2092
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Swift.exe"
  2⤵
  - Views/modifies file attributes
  PID:1040
- 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:4248
- 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
  PID:3260
- 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
  PID:4740
- 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
  PID:3968
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3668
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3596
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1204
- 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:2484
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  - Suspicious behavior: EnumeratesProcesses
  PID:2900
- 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:3052
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4464

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
3KB

MD5
3eb3833f769dd890afc295b977eab4b4

SHA1
e857649b037939602c72ad003e5d3698695f436f

SHA256
c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

SHA512
c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

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

Filesize
1KB

MD5
60b3262c3163ee3d466199160b9ed07d

SHA1
994ece4ea4e61de0be2fdd580f87e3415f9e1ff6

SHA256
e3b30f16d41f94cba2b8a75f35c91ae7418465abfbfe5477ec0551d1952b2fdb

SHA512
081d2015cb94477eb0fbc38f44b6d9b4a3204fb3ad0b7d0e146a88ab4ab9a0d475207f1adae03f4a81ccc5beb7568dc8be1249f69e32fe56efd9ee2f6ee3b1af

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

Filesize
948B

MD5
71731e4ea9af190ccec42d26327f3063

SHA1
757b862177eef5fc4c2e5c2377e9b31aebfe2703

SHA256
cee4826badf33330aca808ead19e05e093238209a0da30d82abdd3add3a4f5ed

SHA512
5a2e00d8458da170be23197fdff46dc1d38c8dbc23abb275abbe2ce0aa6bb3b70331f72eefb7bd14e942e4c535972e236869d0e414a8f0a5fa1811e6db30f9f5

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

Filesize
1KB

MD5
8e1fdd1b66d2fee9f6a052524d4ddca5

SHA1
0a9d0994559d1be2eecd8b0d6960540ca627bdb6

SHA256
4cc7c1b79d1b48582d4dc27ca8c31457b9bf2441deb7914399bb9e6863f18b13

SHA512
5a5494b878b08e8515811ab7a3d68780dac7423f5562477d98249a8bedf7ec98567b7cd5d4c6967d6bc63f2d6d9b7da9a65e0eb29d4b955026b469b5b598d1f3

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

Filesize
1KB

MD5
48832d314c717e0ab558e685c74e6480

SHA1
53535553167bd1072d7736a04c4cbb325540ee38

SHA256
e2b680a6735d110eae049bcd884c45727614e1abd613e2ef8a951589f016da5c

SHA512
b29f30741f13b2661b984d869931025a5662cf8ce08472ceae55b6ee40b3348efb0f3184fa59a306bee19d54ae7877bac75e0e050203b151d3c8732adb3ebd13

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_42yqubsh.0fr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4248-4-0x00007FFFA3150000-0x00007FFFA3C12000-memory.dmp

Filesize
10.8MB

Download
memory/4248-15-0x00007FFFA3150000-0x00007FFFA3C12000-memory.dmp

Filesize
10.8MB

Download
memory/4248-10-0x000001A06C630000-0x000001A06C652000-memory.dmp

Filesize
136KB

Download
memory/4248-18-0x00007FFFA3150000-0x00007FFFA3C12000-memory.dmp

Filesize
10.8MB

Download
memory/4248-3-0x00007FFFA3150000-0x00007FFFA3C12000-memory.dmp

Filesize
10.8MB

Download
memory/5064-33-0x000002B360080000-0x000002B3600D0000-memory.dmp

Filesize
320KB

Download
memory/5064-32-0x000002B378980000-0x000002B3789F6000-memory.dmp

Filesize
472KB

Download
memory/5064-34-0x000002B35E780000-0x000002B35E79E000-memory.dmp

Filesize
120KB

Download
memory/5064-1-0x000002B35E140000-0x000002B35E180000-memory.dmp

Filesize
256KB

Download
memory/5064-0-0x00007FFFA3153000-0x00007FFFA3155000-memory.dmp

Filesize
8KB

Download
memory/5064-59-0x000002B35FEF0000-0x000002B35FEFA000-memory.dmp

Filesize
40KB

Download
memory/5064-60-0x000002B3788B0000-0x000002B3788C2000-memory.dmp

Filesize
72KB

Download
memory/5064-2-0x00007FFFA3150000-0x00007FFFA3C12000-memory.dmp

Filesize
10.8MB

Download
memory/5064-80-0x00007FFFA3150000-0x00007FFFA3C12000-memory.dmp

Filesize
10.8MB

Download