umbral | 331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-01-2025 02:10

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General

Target

331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8.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/0x0007000000023c8b-22.dat	family_umbral
behavioral2/memory/3016-30-0x000001FC82F80000-0x000001FC82FC0000-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
3228	powershell.exe
3348	powershell.exe
836	powershell.exe
4584	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8.exe

Executes dropped EXE 2 IoCs

pid	Process
3796	6z2guuz0ldkdgc1o.exe
3016	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 8 IoCs

Web Service

T1102

flow	ioc
35	0.tcp.eu.ngrok.io
67	0.tcp.eu.ngrok.io
78	0.tcp.eu.ngrok.io
100	0.tcp.eu.ngrok.io
106	0.tcp.eu.ngrok.io
22	0.tcp.eu.ngrok.io
26	discord.com
27	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
15	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
4900	cmd.exe
2304	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4344	wmic.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000_Classes\Local Settings	331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000_Classes\Local Settings	OpenWith.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2304	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3016	MoonHub.exe
3228	powershell.exe
3228	powershell.exe
3348	powershell.exe
3348	powershell.exe
836	powershell.exe
836	powershell.exe
2944	powershell.exe
2944	powershell.exe
4584	powershell.exe
4584	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3796	6z2guuz0ldkdgc1o.exe
Token: SeDebugPrivilege	3016	MoonHub.exe
Token: SeIncreaseQuotaPrivilege	3448	wmic.exe
Token: SeSecurityPrivilege	3448	wmic.exe
Token: SeTakeOwnershipPrivilege	3448	wmic.exe
Token: SeLoadDriverPrivilege	3448	wmic.exe
Token: SeSystemProfilePrivilege	3448	wmic.exe
Token: SeSystemtimePrivilege	3448	wmic.exe
Token: SeProfSingleProcessPrivilege	3448	wmic.exe
Token: SeIncBasePriorityPrivilege	3448	wmic.exe
Token: SeCreatePagefilePrivilege	3448	wmic.exe
Token: SeBackupPrivilege	3448	wmic.exe
Token: SeRestorePrivilege	3448	wmic.exe
Token: SeShutdownPrivilege	3448	wmic.exe
Token: SeDebugPrivilege	3448	wmic.exe
Token: SeSystemEnvironmentPrivilege	3448	wmic.exe
Token: SeRemoteShutdownPrivilege	3448	wmic.exe
Token: SeUndockPrivilege	3448	wmic.exe
Token: SeManageVolumePrivilege	3448	wmic.exe
Token: 33	3448	wmic.exe
Token: 34	3448	wmic.exe
Token: 35	3448	wmic.exe
Token: 36	3448	wmic.exe
Token: SeIncreaseQuotaPrivilege	3448	wmic.exe
Token: SeSecurityPrivilege	3448	wmic.exe
Token: SeTakeOwnershipPrivilege	3448	wmic.exe
Token: SeLoadDriverPrivilege	3448	wmic.exe
Token: SeSystemProfilePrivilege	3448	wmic.exe
Token: SeSystemtimePrivilege	3448	wmic.exe
Token: SeProfSingleProcessPrivilege	3448	wmic.exe
Token: SeIncBasePriorityPrivilege	3448	wmic.exe
Token: SeCreatePagefilePrivilege	3448	wmic.exe
Token: SeBackupPrivilege	3448	wmic.exe
Token: SeRestorePrivilege	3448	wmic.exe
Token: SeShutdownPrivilege	3448	wmic.exe
Token: SeDebugPrivilege	3448	wmic.exe
Token: SeSystemEnvironmentPrivilege	3448	wmic.exe
Token: SeRemoteShutdownPrivilege	3448	wmic.exe
Token: SeUndockPrivilege	3448	wmic.exe
Token: SeManageVolumePrivilege	3448	wmic.exe
Token: 33	3448	wmic.exe
Token: 34	3448	wmic.exe
Token: 35	3448	wmic.exe
Token: 36	3448	wmic.exe
Token: SeDebugPrivilege	3228	powershell.exe
Token: SeDebugPrivilege	3348	powershell.exe
Token: SeDebugPrivilege	836	powershell.exe
Token: SeDebugPrivilege	2944	powershell.exe
Token: SeIncBasePriorityPrivilege	3796	6z2guuz0ldkdgc1o.exe
Token: SeIncreaseQuotaPrivilege	1472	wmic.exe
Token: SeSecurityPrivilege	1472	wmic.exe
Token: SeTakeOwnershipPrivilege	1472	wmic.exe
Token: SeLoadDriverPrivilege	1472	wmic.exe
Token: SeSystemProfilePrivilege	1472	wmic.exe
Token: SeSystemtimePrivilege	1472	wmic.exe
Token: SeProfSingleProcessPrivilege	1472	wmic.exe
Token: SeIncBasePriorityPrivilege	1472	wmic.exe
Token: SeCreatePagefilePrivilege	1472	wmic.exe
Token: SeBackupPrivilege	1472	wmic.exe
Token: SeRestorePrivilege	1472	wmic.exe
Token: SeShutdownPrivilege	1472	wmic.exe
Token: SeDebugPrivilege	1472	wmic.exe
Token: SeSystemEnvironmentPrivilege	1472	wmic.exe
Token: SeRemoteShutdownPrivilege	1472	wmic.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4664	OpenWith.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 976 wrote to memory of 3796	976	331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8.exe	83
PID 976 wrote to memory of 3796	976	331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8.exe	83
PID 976 wrote to memory of 3016	976	331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8.exe	86
PID 976 wrote to memory of 3016	976	331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8.exe	86
PID 3016 wrote to memory of 3448	3016	MoonHub.exe	87
PID 3016 wrote to memory of 3448	3016	MoonHub.exe	87
PID 3016 wrote to memory of 4840	3016	MoonHub.exe	90
PID 3016 wrote to memory of 4840	3016	MoonHub.exe	90
PID 3016 wrote to memory of 3228	3016	MoonHub.exe	92
PID 3016 wrote to memory of 3228	3016	MoonHub.exe	92
PID 3016 wrote to memory of 3348	3016	MoonHub.exe	94
PID 3016 wrote to memory of 3348	3016	MoonHub.exe	94
PID 3016 wrote to memory of 836	3016	MoonHub.exe	96
PID 3016 wrote to memory of 836	3016	MoonHub.exe	96
PID 3016 wrote to memory of 2944	3016	MoonHub.exe	98
PID 3016 wrote to memory of 2944	3016	MoonHub.exe	98
PID 3016 wrote to memory of 1472	3016	MoonHub.exe	101
PID 3016 wrote to memory of 1472	3016	MoonHub.exe	101
PID 3016 wrote to memory of 1728	3016	MoonHub.exe	103
PID 3016 wrote to memory of 1728	3016	MoonHub.exe	103
PID 3016 wrote to memory of 1368	3016	MoonHub.exe	105
PID 3016 wrote to memory of 1368	3016	MoonHub.exe	105
PID 3016 wrote to memory of 4584	3016	MoonHub.exe	107
PID 3016 wrote to memory of 4584	3016	MoonHub.exe	107
PID 3016 wrote to memory of 4344	3016	MoonHub.exe	109
PID 3016 wrote to memory of 4344	3016	MoonHub.exe	109
PID 3016 wrote to memory of 4900	3016	MoonHub.exe	113
PID 3016 wrote to memory of 4900	3016	MoonHub.exe	113
PID 4900 wrote to memory of 2304	4900	cmd.exe	115
PID 4900 wrote to memory of 2304	4900	cmd.exe	115

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4840	attrib.exe

C:\Users\Admin\AppData\Local\Temp\331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8.exe
"C:\Users\Admin\AppData\Local\Temp\331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:976
- 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:3796
- 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:3016
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3448
- - C:\Windows\SYSTEM32\attrib.exe
    "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\MoonHub.exe"
    3⤵
    - Views/modifies file attributes
    PID:4840
- - 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:3228
- - 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:3348
- - 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:836
- - 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:2944
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" os get Caption
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1472
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" computersystem get totalphysicalmemory
    3⤵
    PID:1728
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:1368
- - 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:4584
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic" path win32_VideoController get name
    3⤵
    - Detects videocard installed
    PID:4344
- - 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:4900
  - - C:\Windows\system32\PING.EXE
      ping localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2304

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4664

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
09def8339dd01f87028174d13955a837

SHA1
213505e9417a2d49b0d316fe24b37e58e5779a8d

SHA256
63b8eb3dbc959e56e38025e4d6c465de3b3711c29d76cdbad1002e6fed91ebd1

SHA512
c08119c8c873d555c7a6e17449f3f95530f64a9f658b0ea973636ccf4b73314c1d8d526bb765ab918da418d4531c773603cc6b28d1822d27dda7b43e252b5b95

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
5f90dcba500bfa625d5ece584fb2fee7

SHA1
93a7a269d0492941aa33202fce89c49833e8e751

SHA256
5636b964b3d7e0e89f2b9156d12264d90cbad9a0fd6a9c9ceecdc08cd25537ce

SHA512
387464683e94472ed0cd8f44e40c973d6e638e114697eb25042a810d337aa945ed79d4a1db27eb41823adc207b5ef00a1124218e3668f26cec8d8a89a0280f23

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\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_v0f2zr3y.wfv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/976-31-0x00007FFC9E500000-0x00007FFC9EFC1000-memory.dmp

Filesize
10.8MB

Download
memory/976-13-0x00007FFC9E500000-0x00007FFC9EFC1000-memory.dmp

Filesize
10.8MB

Download
memory/976-0-0x00007FFC9E503000-0x00007FFC9E505000-memory.dmp

Filesize
8KB

Download
memory/976-1-0x0000000000E00000-0x0000000000E26000-memory.dmp

Filesize
152KB

Download
memory/3016-98-0x000001FC9D6A0000-0x000001FC9D6B2000-memory.dmp

Filesize
72KB

Download
memory/3016-58-0x000001FC9D6C0000-0x000001FC9D736000-memory.dmp

Filesize
472KB

Download
memory/3016-59-0x000001FC9D740000-0x000001FC9D790000-memory.dmp

Filesize
320KB

Download
memory/3016-60-0x000001FC9D640000-0x000001FC9D65E000-memory.dmp

Filesize
120KB

Download
memory/3016-30-0x000001FC82F80000-0x000001FC82FC0000-memory.dmp

Filesize
256KB

Download
memory/3016-97-0x000001FC9D670000-0x000001FC9D67A000-memory.dmp

Filesize
40KB

Download
memory/3228-38-0x000001BEF6DE0000-0x000001BEF6E02000-memory.dmp

Filesize
136KB

Download
memory/3796-17-0x00007FFC9E500000-0x00007FFC9EFC1000-memory.dmp

Filesize
10.8MB

Download
memory/3796-16-0x0000000000380000-0x0000000000390000-memory.dmp

Filesize
64KB

Download
memory/3796-118-0x00007FFC9E500000-0x00007FFC9EFC1000-memory.dmp

Filesize
10.8MB

Download