umbral | 8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27

Analysis

max time kernel
94s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-01-2025 06:17

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General

Target

8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe
Size

231KB
MD5

729cf3dc131a564c3384ec6a3cf387ce
SHA1

3401e42954a2c5de84d2c32ab97e69db54144bd1
SHA256

8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27
SHA512

9bdf9ac4ace3dbef33adaff6db5e5a157f1f7967613c88b26e51e5c7032b20018007bbc6726812482e2dcf8c8ef8f0a62eb779efe4cf0e893f215faab70bf351
SSDEEP

6144:RloZM+rIkd8g+EtXHkv/iD4+Qz/jpaC93op7mGz2tb8e1moJboi:joZtL+EP8+Qz/jpaC93op7mGz6zbR

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/4440-1-0x000001BF91E30000-0x000001BF91E70000-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
2284	powershell.exe
3620	powershell.exe
2304	powershell.exe
348	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.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
19	discord.com
18	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
2400	cmd.exe
3512	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1492	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3512	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe
348	powershell.exe
348	powershell.exe
2284	powershell.exe
2284	powershell.exe
3620	powershell.exe
3620	powershell.exe
4268	powershell.exe
4268	powershell.exe
2304	powershell.exe
2304	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe
Token: SeIncreaseQuotaPrivilege	1348	wmic.exe
Token: SeSecurityPrivilege	1348	wmic.exe
Token: SeTakeOwnershipPrivilege	1348	wmic.exe
Token: SeLoadDriverPrivilege	1348	wmic.exe
Token: SeSystemProfilePrivilege	1348	wmic.exe
Token: SeSystemtimePrivilege	1348	wmic.exe
Token: SeProfSingleProcessPrivilege	1348	wmic.exe
Token: SeIncBasePriorityPrivilege	1348	wmic.exe
Token: SeCreatePagefilePrivilege	1348	wmic.exe
Token: SeBackupPrivilege	1348	wmic.exe
Token: SeRestorePrivilege	1348	wmic.exe
Token: SeShutdownPrivilege	1348	wmic.exe
Token: SeDebugPrivilege	1348	wmic.exe
Token: SeSystemEnvironmentPrivilege	1348	wmic.exe
Token: SeRemoteShutdownPrivilege	1348	wmic.exe
Token: SeUndockPrivilege	1348	wmic.exe
Token: SeManageVolumePrivilege	1348	wmic.exe
Token: 33	1348	wmic.exe
Token: 34	1348	wmic.exe
Token: 35	1348	wmic.exe
Token: 36	1348	wmic.exe
Token: SeIncreaseQuotaPrivilege	1348	wmic.exe
Token: SeSecurityPrivilege	1348	wmic.exe
Token: SeTakeOwnershipPrivilege	1348	wmic.exe
Token: SeLoadDriverPrivilege	1348	wmic.exe
Token: SeSystemProfilePrivilege	1348	wmic.exe
Token: SeSystemtimePrivilege	1348	wmic.exe
Token: SeProfSingleProcessPrivilege	1348	wmic.exe
Token: SeIncBasePriorityPrivilege	1348	wmic.exe
Token: SeCreatePagefilePrivilege	1348	wmic.exe
Token: SeBackupPrivilege	1348	wmic.exe
Token: SeRestorePrivilege	1348	wmic.exe
Token: SeShutdownPrivilege	1348	wmic.exe
Token: SeDebugPrivilege	1348	wmic.exe
Token: SeSystemEnvironmentPrivilege	1348	wmic.exe
Token: SeRemoteShutdownPrivilege	1348	wmic.exe
Token: SeUndockPrivilege	1348	wmic.exe
Token: SeManageVolumePrivilege	1348	wmic.exe
Token: 33	1348	wmic.exe
Token: 34	1348	wmic.exe
Token: 35	1348	wmic.exe
Token: 36	1348	wmic.exe
Token: SeDebugPrivilege	348	powershell.exe
Token: SeDebugPrivilege	2284	powershell.exe
Token: SeDebugPrivilege	3620	powershell.exe
Token: SeDebugPrivilege	4268	powershell.exe
Token: SeIncreaseQuotaPrivilege	3536	wmic.exe
Token: SeSecurityPrivilege	3536	wmic.exe
Token: SeTakeOwnershipPrivilege	3536	wmic.exe
Token: SeLoadDriverPrivilege	3536	wmic.exe
Token: SeSystemProfilePrivilege	3536	wmic.exe
Token: SeSystemtimePrivilege	3536	wmic.exe
Token: SeProfSingleProcessPrivilege	3536	wmic.exe
Token: SeIncBasePriorityPrivilege	3536	wmic.exe
Token: SeCreatePagefilePrivilege	3536	wmic.exe
Token: SeBackupPrivilege	3536	wmic.exe
Token: SeRestorePrivilege	3536	wmic.exe
Token: SeShutdownPrivilege	3536	wmic.exe
Token: SeDebugPrivilege	3536	wmic.exe
Token: SeSystemEnvironmentPrivilege	3536	wmic.exe
Token: SeRemoteShutdownPrivilege	3536	wmic.exe
Token: SeUndockPrivilege	3536	wmic.exe
Token: SeManageVolumePrivilege	3536	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4440 wrote to memory of 1348	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	83
PID 4440 wrote to memory of 1348	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	83
PID 4440 wrote to memory of 2020	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	86
PID 4440 wrote to memory of 2020	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	86
PID 4440 wrote to memory of 348	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	88
PID 4440 wrote to memory of 348	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	88
PID 4440 wrote to memory of 2284	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	90
PID 4440 wrote to memory of 2284	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	90
PID 4440 wrote to memory of 3620	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	92
PID 4440 wrote to memory of 3620	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	92
PID 4440 wrote to memory of 4268	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	94
PID 4440 wrote to memory of 4268	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	94
PID 4440 wrote to memory of 3536	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	97
PID 4440 wrote to memory of 3536	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	97
PID 4440 wrote to memory of 4416	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	99
PID 4440 wrote to memory of 4416	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	99
PID 4440 wrote to memory of 4384	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	101
PID 4440 wrote to memory of 4384	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	101
PID 4440 wrote to memory of 2304	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	103
PID 4440 wrote to memory of 2304	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	103
PID 4440 wrote to memory of 1492	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	105
PID 4440 wrote to memory of 1492	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	105
PID 4440 wrote to memory of 2400	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	109
PID 4440 wrote to memory of 2400	4440	8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe	109
PID 2400 wrote to memory of 3512	2400	cmd.exe	111
PID 2400 wrote to memory of 3512	2400	cmd.exe	111

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2020	attrib.exe

C:\Users\Admin\AppData\Local\Temp\8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe
"C:\Users\Admin\AppData\Local\Temp\8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1348
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe"
  2⤵
  - Views/modifies file attributes
  PID:2020
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:348
- 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:2284
- 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:3620
- 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:4268
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3536
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4416
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4384
- 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:2304
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1492
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\8d2343458799f4942026ffb7dfd107c11a056977226f0c3905c9a55b882f2a27.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3512

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
74a6b79d36b4aae8b027a218bc6e1af7

SHA1
0350e46c1df6934903c4820a00b0bc4721779e5f

SHA256
60c64f6803d7ad1408d0a8628100470859b16ef332d5f1bd8bb2debe51251d04

SHA512
60e71435a9a23f4c144d641844f4182ddc9aa4ccd3e99232149a187112dce96458aab9587e9fea46f5dc5a52f5ca758969a04657a2b5b10241d3e4554f7c85e0

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

Filesize
1KB

MD5
227556da5e65f6819f477756808c17e4

SHA1
6ffce766e881ca2a60180bb25f4981b183f78279

SHA256
101f5fe8a4192f14e9f0a12c105ca81c9f176860930af44747185dd1bedb59a4

SHA512
d46b935809d2c4b7a041ad790f2db11c0a808df022c91ae9152b8769021b884fde49653a7a46557ef9ee65e274fe0b6c8503df9b50e6b3b849fefacf51f8bd6a

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

Filesize
1KB

MD5
2984662ba3f86d7fcf26758b5b76754d

SHA1
bc2a43ffd898222ee84406313f3834f226928379

SHA256
f0815f797b0c1829745dd65985f28d459688f91ceb2f3d76fed2d4309589bcde

SHA512
a06251a7a14559ebf5627a3c6b03fda9ded1d4ee44991283c824ccf5011cdf67665696d2d9b23507cbb3e3b9943b9e9f79ef28d3657eb61fb99920225417ab11

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kn54qtne.ias.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/348-3-0x00007FF9D97A0000-0x00007FF9DA261000-memory.dmp

Filesize
10.8MB

Download
memory/348-6-0x000001B76E2F0000-0x000001B76E312000-memory.dmp

Filesize
136KB

Download
memory/348-16-0x00007FF9D97A0000-0x00007FF9DA261000-memory.dmp

Filesize
10.8MB

Download
memory/4440-33-0x000001BFAC650000-0x000001BFAC66E000-memory.dmp

Filesize
120KB

Download
memory/4440-32-0x000001BFAC710000-0x000001BFAC760000-memory.dmp

Filesize
320KB

Download
memory/4440-31-0x000001BFAC690000-0x000001BFAC706000-memory.dmp

Filesize
472KB

Download
memory/4440-0-0x00007FF9D97A3000-0x00007FF9D97A5000-memory.dmp

Filesize
8KB

Download
memory/4440-1-0x000001BF91E30000-0x000001BF91E70000-memory.dmp

Filesize
256KB

Download
memory/4440-70-0x000001BFAC610000-0x000001BFAC61A000-memory.dmp

Filesize
40KB

Download
memory/4440-71-0x000001BFAC670000-0x000001BFAC682000-memory.dmp

Filesize
72KB

Download
memory/4440-2-0x00007FF9D97A0000-0x00007FF9DA261000-memory.dmp

Filesize
10.8MB

Download
memory/4440-91-0x000001BFAC2C0000-0x000001BFAC3C2000-memory.dmp

Filesize
1.0MB

Download
memory/4440-92-0x00007FF9D97A0000-0x00007FF9DA261000-memory.dmp

Filesize
10.8MB

Download