umbral | 66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62

Analysis

max time kernel
142s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
07/02/2025, 00:50

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General

Target

66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe
Size

227KB
MD5

87d805618091e568a056c988e2c26cfa
SHA1

aedfd6340df353946e6a6b0be5b0f02c3bc69bd2
SHA256

66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62
SHA512

cace3d172fe91b7a971b5fdd64173fdc7a71ce8ca44b4af89a5ce1db9076e9e36614a3fa98305605f593ebcacc27aa0cb8b076a033f0693a5c7b93d0a98c255a
SSDEEP

6144:+loZM+rIkd8g+EtXHkv/iD4ZCaClZ8e1mU0o2i:ooZtL+EP8wDD0G

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/376-0-0x000001EAA70C0000-0x000001EAA7100000-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
5060	powershell.exe
1912	powershell.exe
1892	powershell.exe
4988	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.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
33	discord.com
35	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
8	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
1332	cmd.exe
4756	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
408	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4756	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe
5060	powershell.exe
5060	powershell.exe
1912	powershell.exe
1912	powershell.exe
1892	powershell.exe
1892	powershell.exe
764	powershell.exe
764	powershell.exe
4988	powershell.exe
4988	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe
Token: SeIncreaseQuotaPrivilege	1072	wmic.exe
Token: SeSecurityPrivilege	1072	wmic.exe
Token: SeTakeOwnershipPrivilege	1072	wmic.exe
Token: SeLoadDriverPrivilege	1072	wmic.exe
Token: SeSystemProfilePrivilege	1072	wmic.exe
Token: SeSystemtimePrivilege	1072	wmic.exe
Token: SeProfSingleProcessPrivilege	1072	wmic.exe
Token: SeIncBasePriorityPrivilege	1072	wmic.exe
Token: SeCreatePagefilePrivilege	1072	wmic.exe
Token: SeBackupPrivilege	1072	wmic.exe
Token: SeRestorePrivilege	1072	wmic.exe
Token: SeShutdownPrivilege	1072	wmic.exe
Token: SeDebugPrivilege	1072	wmic.exe
Token: SeSystemEnvironmentPrivilege	1072	wmic.exe
Token: SeRemoteShutdownPrivilege	1072	wmic.exe
Token: SeUndockPrivilege	1072	wmic.exe
Token: SeManageVolumePrivilege	1072	wmic.exe
Token: 33	1072	wmic.exe
Token: 34	1072	wmic.exe
Token: 35	1072	wmic.exe
Token: 36	1072	wmic.exe
Token: SeIncreaseQuotaPrivilege	1072	wmic.exe
Token: SeSecurityPrivilege	1072	wmic.exe
Token: SeTakeOwnershipPrivilege	1072	wmic.exe
Token: SeLoadDriverPrivilege	1072	wmic.exe
Token: SeSystemProfilePrivilege	1072	wmic.exe
Token: SeSystemtimePrivilege	1072	wmic.exe
Token: SeProfSingleProcessPrivilege	1072	wmic.exe
Token: SeIncBasePriorityPrivilege	1072	wmic.exe
Token: SeCreatePagefilePrivilege	1072	wmic.exe
Token: SeBackupPrivilege	1072	wmic.exe
Token: SeRestorePrivilege	1072	wmic.exe
Token: SeShutdownPrivilege	1072	wmic.exe
Token: SeDebugPrivilege	1072	wmic.exe
Token: SeSystemEnvironmentPrivilege	1072	wmic.exe
Token: SeRemoteShutdownPrivilege	1072	wmic.exe
Token: SeUndockPrivilege	1072	wmic.exe
Token: SeManageVolumePrivilege	1072	wmic.exe
Token: 33	1072	wmic.exe
Token: 34	1072	wmic.exe
Token: 35	1072	wmic.exe
Token: 36	1072	wmic.exe
Token: SeDebugPrivilege	5060	powershell.exe
Token: SeDebugPrivilege	1912	powershell.exe
Token: SeDebugPrivilege	1892	powershell.exe
Token: SeDebugPrivilege	764	powershell.exe
Token: SeIncreaseQuotaPrivilege	1740	wmic.exe
Token: SeSecurityPrivilege	1740	wmic.exe
Token: SeTakeOwnershipPrivilege	1740	wmic.exe
Token: SeLoadDriverPrivilege	1740	wmic.exe
Token: SeSystemProfilePrivilege	1740	wmic.exe
Token: SeSystemtimePrivilege	1740	wmic.exe
Token: SeProfSingleProcessPrivilege	1740	wmic.exe
Token: SeIncBasePriorityPrivilege	1740	wmic.exe
Token: SeCreatePagefilePrivilege	1740	wmic.exe
Token: SeBackupPrivilege	1740	wmic.exe
Token: SeRestorePrivilege	1740	wmic.exe
Token: SeShutdownPrivilege	1740	wmic.exe
Token: SeDebugPrivilege	1740	wmic.exe
Token: SeSystemEnvironmentPrivilege	1740	wmic.exe
Token: SeRemoteShutdownPrivilege	1740	wmic.exe
Token: SeUndockPrivilege	1740	wmic.exe
Token: SeManageVolumePrivilege	1740	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 376 wrote to memory of 1072	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	85
PID 376 wrote to memory of 1072	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	85
PID 376 wrote to memory of 408	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	91
PID 376 wrote to memory of 408	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	91
PID 376 wrote to memory of 5060	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	93
PID 376 wrote to memory of 5060	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	93
PID 376 wrote to memory of 1912	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	95
PID 376 wrote to memory of 1912	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	95
PID 376 wrote to memory of 1892	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	99
PID 376 wrote to memory of 1892	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	99
PID 376 wrote to memory of 764	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	101
PID 376 wrote to memory of 764	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	101
PID 376 wrote to memory of 1740	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	105
PID 376 wrote to memory of 1740	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	105
PID 376 wrote to memory of 2744	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	107
PID 376 wrote to memory of 2744	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	107
PID 376 wrote to memory of 1908	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	109
PID 376 wrote to memory of 1908	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	109
PID 376 wrote to memory of 4988	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	111
PID 376 wrote to memory of 4988	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	111
PID 376 wrote to memory of 408	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	113
PID 376 wrote to memory of 408	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	113
PID 376 wrote to memory of 1332	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	116
PID 376 wrote to memory of 1332	376	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	116
PID 1332 wrote to memory of 4756	1332	cmd.exe	118
PID 1332 wrote to memory of 4756	1332	cmd.exe	118

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
408	attrib.exe

C:\Users\Admin\AppData\Local\Temp\66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe
"C:\Users\Admin\AppData\Local\Temp\66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:376
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1072
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe"
  2⤵
  - Views/modifies file attributes
  PID:408
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5060
- 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:1912
- 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:1892
- 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:764
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1740
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2744
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1908
- 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:4988
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:408
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1332
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4756

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
1a58f982c18490e622e00d4eb75ace5a

SHA1
60c30527b74659ecf09089a5a7c02a1df9a71b65

SHA256
4b7f800c0dea209162cc86627983993127eb20e3f8616646c41cb3ce15d9b39d

SHA512
ddab516a967783c5951717853aa5b3ef6dd5b442db50092888b2e7f3179fc68120fcde69a08d6ab280740eaadb6eadfc758c3118b52706f869e48ac1aebda480

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
58b80fe8da7d23cd3c9707f4ce93457e

SHA1
7d1c58b992631d82cabd38d738ccca072c91c124

SHA256
4479db3e2faf952801a1506140f3612e267e9bb4f5d509b0d63204429de8eef3

SHA512
82ef5d29aaf46b5fef467185193f03612058c4bbd7b9926293a79c18deefe137811f95dc59feaa649376c8711ca3253177177b538d2d953147db1ed719cba5e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4op3opqa.cft.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/376-71-0x000001EAC18B0000-0x000001EAC18BA000-memory.dmp

Filesize
40KB

Download
memory/376-35-0x000001EAA8D30000-0x000001EAA8D4E000-memory.dmp

Filesize
120KB

Download
memory/376-90-0x00007FFF07560000-0x00007FFF08021000-memory.dmp

Filesize
10.8MB

Download
memory/376-72-0x000001EAC1900000-0x000001EAC1912000-memory.dmp

Filesize
72KB

Download
memory/376-2-0x00007FFF07560000-0x00007FFF08021000-memory.dmp

Filesize
10.8MB

Download
memory/376-33-0x000001EAC1830000-0x000001EAC18A6000-memory.dmp

Filesize
472KB

Download
memory/376-34-0x000001EAA8ED0000-0x000001EAA8F20000-memory.dmp

Filesize
320KB

Download
memory/376-1-0x00007FFF07563000-0x00007FFF07565000-memory.dmp

Filesize
8KB

Download
memory/376-0-0x000001EAA70C0000-0x000001EAA7100000-memory.dmp

Filesize
256KB

Download
memory/5060-11-0x00007FFF07560000-0x00007FFF08021000-memory.dmp

Filesize
10.8MB

Download
memory/5060-4-0x00007FFF07560000-0x00007FFF08021000-memory.dmp

Filesize
10.8MB

Download
memory/5060-3-0x00007FFF07560000-0x00007FFF08021000-memory.dmp

Filesize
10.8MB

Download
memory/5060-10-0x0000029C04BA0000-0x0000029C04BC2000-memory.dmp

Filesize
136KB

Download
memory/5060-18-0x00007FFF07560000-0x00007FFF08021000-memory.dmp

Filesize
10.8MB

Download