umbral | a5011c165dbd8459396a3b4f901c7faa668e95e395fb12d7c967c34c0d974355

Analysis

max time kernel
95s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-12-2024 07:06

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General

Target

230f75b72d5021a921637929a63cfd79.exe
Size

231KB
MD5

230f75b72d5021a921637929a63cfd79
SHA1

71af2ee3489d49914f7c7fa4e16e8398e97e0fc8
SHA256

a5011c165dbd8459396a3b4f901c7faa668e95e395fb12d7c967c34c0d974355
SHA512

3dc11aac2231daf30871d30f43eba3eadf14f3b003dd1f81466cde021b0b59d38c5e9a320e6705b4f5a0eeebf93f9ee5459173e20de2ab3ae3f3e9988819f001
SSDEEP

6144:xloZMUrIkd8g+EtXHkv/iD4b3gulGELnsyd42X3Wc8b8e1mDQi:DoZrL+EP8b3gulGELnsyd42X3WxYJ

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/4220-1-0x0000016553350000-0x0000016553390000-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
3140	powershell.exe
4832	powershell.exe
2340	powershell.exe
3044	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	230f75b72d5021a921637929a63cfd79.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
21	discord.com
22	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
18	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
4764	cmd.exe
1928	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4516	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1928	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3044	powershell.exe
3044	powershell.exe
4832	powershell.exe
4832	powershell.exe
2340	powershell.exe
2340	powershell.exe
3980	powershell.exe
3980	powershell.exe
3140	powershell.exe
3140	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4220	230f75b72d5021a921637929a63cfd79.exe
Token: SeDebugPrivilege	3044	powershell.exe
Token: SeDebugPrivilege	4832	powershell.exe
Token: SeDebugPrivilege	2340	powershell.exe
Token: SeDebugPrivilege	3980	powershell.exe
Token: SeIncreaseQuotaPrivilege	1580	wmic.exe
Token: SeSecurityPrivilege	1580	wmic.exe
Token: SeTakeOwnershipPrivilege	1580	wmic.exe
Token: SeLoadDriverPrivilege	1580	wmic.exe
Token: SeSystemProfilePrivilege	1580	wmic.exe
Token: SeSystemtimePrivilege	1580	wmic.exe
Token: SeProfSingleProcessPrivilege	1580	wmic.exe
Token: SeIncBasePriorityPrivilege	1580	wmic.exe
Token: SeCreatePagefilePrivilege	1580	wmic.exe
Token: SeBackupPrivilege	1580	wmic.exe
Token: SeRestorePrivilege	1580	wmic.exe
Token: SeShutdownPrivilege	1580	wmic.exe
Token: SeDebugPrivilege	1580	wmic.exe
Token: SeSystemEnvironmentPrivilege	1580	wmic.exe
Token: SeRemoteShutdownPrivilege	1580	wmic.exe
Token: SeUndockPrivilege	1580	wmic.exe
Token: SeManageVolumePrivilege	1580	wmic.exe
Token: 33	1580	wmic.exe
Token: 34	1580	wmic.exe
Token: 35	1580	wmic.exe
Token: 36	1580	wmic.exe
Token: SeIncreaseQuotaPrivilege	1580	wmic.exe
Token: SeSecurityPrivilege	1580	wmic.exe
Token: SeTakeOwnershipPrivilege	1580	wmic.exe
Token: SeLoadDriverPrivilege	1580	wmic.exe
Token: SeSystemProfilePrivilege	1580	wmic.exe
Token: SeSystemtimePrivilege	1580	wmic.exe
Token: SeProfSingleProcessPrivilege	1580	wmic.exe
Token: SeIncBasePriorityPrivilege	1580	wmic.exe
Token: SeCreatePagefilePrivilege	1580	wmic.exe
Token: SeBackupPrivilege	1580	wmic.exe
Token: SeRestorePrivilege	1580	wmic.exe
Token: SeShutdownPrivilege	1580	wmic.exe
Token: SeDebugPrivilege	1580	wmic.exe
Token: SeSystemEnvironmentPrivilege	1580	wmic.exe
Token: SeRemoteShutdownPrivilege	1580	wmic.exe
Token: SeUndockPrivilege	1580	wmic.exe
Token: SeManageVolumePrivilege	1580	wmic.exe
Token: 33	1580	wmic.exe
Token: 34	1580	wmic.exe
Token: 35	1580	wmic.exe
Token: 36	1580	wmic.exe
Token: SeIncreaseQuotaPrivilege	3516	wmic.exe
Token: SeSecurityPrivilege	3516	wmic.exe
Token: SeTakeOwnershipPrivilege	3516	wmic.exe
Token: SeLoadDriverPrivilege	3516	wmic.exe
Token: SeSystemProfilePrivilege	3516	wmic.exe
Token: SeSystemtimePrivilege	3516	wmic.exe
Token: SeProfSingleProcessPrivilege	3516	wmic.exe
Token: SeIncBasePriorityPrivilege	3516	wmic.exe
Token: SeCreatePagefilePrivilege	3516	wmic.exe
Token: SeBackupPrivilege	3516	wmic.exe
Token: SeRestorePrivilege	3516	wmic.exe
Token: SeShutdownPrivilege	3516	wmic.exe
Token: SeDebugPrivilege	3516	wmic.exe
Token: SeSystemEnvironmentPrivilege	3516	wmic.exe
Token: SeRemoteShutdownPrivilege	3516	wmic.exe
Token: SeUndockPrivilege	3516	wmic.exe
Token: SeManageVolumePrivilege	3516	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4220 wrote to memory of 3636	4220	230f75b72d5021a921637929a63cfd79.exe	82
PID 4220 wrote to memory of 3636	4220	230f75b72d5021a921637929a63cfd79.exe	82
PID 4220 wrote to memory of 3044	4220	230f75b72d5021a921637929a63cfd79.exe	84
PID 4220 wrote to memory of 3044	4220	230f75b72d5021a921637929a63cfd79.exe	84
PID 4220 wrote to memory of 4832	4220	230f75b72d5021a921637929a63cfd79.exe	86
PID 4220 wrote to memory of 4832	4220	230f75b72d5021a921637929a63cfd79.exe	86
PID 4220 wrote to memory of 2340	4220	230f75b72d5021a921637929a63cfd79.exe	88
PID 4220 wrote to memory of 2340	4220	230f75b72d5021a921637929a63cfd79.exe	88
PID 4220 wrote to memory of 3980	4220	230f75b72d5021a921637929a63cfd79.exe	90
PID 4220 wrote to memory of 3980	4220	230f75b72d5021a921637929a63cfd79.exe	90
PID 4220 wrote to memory of 1580	4220	230f75b72d5021a921637929a63cfd79.exe	92
PID 4220 wrote to memory of 1580	4220	230f75b72d5021a921637929a63cfd79.exe	92
PID 4220 wrote to memory of 3516	4220	230f75b72d5021a921637929a63cfd79.exe	95
PID 4220 wrote to memory of 3516	4220	230f75b72d5021a921637929a63cfd79.exe	95
PID 4220 wrote to memory of 3876	4220	230f75b72d5021a921637929a63cfd79.exe	97
PID 4220 wrote to memory of 3876	4220	230f75b72d5021a921637929a63cfd79.exe	97
PID 4220 wrote to memory of 3140	4220	230f75b72d5021a921637929a63cfd79.exe	99
PID 4220 wrote to memory of 3140	4220	230f75b72d5021a921637929a63cfd79.exe	99
PID 4220 wrote to memory of 4516	4220	230f75b72d5021a921637929a63cfd79.exe	101
PID 4220 wrote to memory of 4516	4220	230f75b72d5021a921637929a63cfd79.exe	101
PID 4220 wrote to memory of 4764	4220	230f75b72d5021a921637929a63cfd79.exe	103
PID 4220 wrote to memory of 4764	4220	230f75b72d5021a921637929a63cfd79.exe	103
PID 4764 wrote to memory of 1928	4764	cmd.exe	105
PID 4764 wrote to memory of 1928	4764	cmd.exe	105

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3636	attrib.exe

C:\Users\Admin\AppData\Local\Temp\230f75b72d5021a921637929a63cfd79.exe
"C:\Users\Admin\AppData\Local\Temp\230f75b72d5021a921637929a63cfd79.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4220
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\230f75b72d5021a921637929a63cfd79.exe"
  2⤵
  - Views/modifies file attributes
  PID:3636
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\230f75b72d5021a921637929a63cfd79.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3044
- 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:4832
- 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:2340
- 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:3980
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1580
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3516
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3876
- 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:3140
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4516
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\230f75b72d5021a921637929a63cfd79.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4764
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1928

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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
6a29e9f9eb72c3bffbb054cd27e3ceea

SHA1
d38f7c2ad68dcf1d24deca9792256ff53d5218b2

SHA256
7a9f831f96b9e4843751dea3ed57ee11d70bb83a5970ddf9d6bd440f4def442c

SHA512
b4826f172c6ac60ad17412a634987c45640b1b8fe03aecba26510ae224685bcd571bc4b131724036e2b502b3a8198fb69414be8c72e46f833f0601a15d313430

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
4dcd3cacd3829a7fec233cb12257bcb2

SHA1
997f4b9498c1668c6462efebb1914a456f79c526

SHA256
77ee262e98be6e463a4ef4005be753a1fe44d9274ef2c683c54d62607bfc5c4b

SHA512
14679e20b70ea5d4d35ca5bef867303463bb3aeab82655de5d9b1979e4a573482739e54403f9752e32b641618e21268a3e9c07b621ae9bed1fcb39445efb7756

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3a25njbn.vg2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3044-3-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download
memory/3044-4-0x000001F95D6B0000-0x000001F95D6D2000-memory.dmp

Filesize
136KB

Download
memory/3044-5-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download
memory/3044-15-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download
memory/3044-19-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download
memory/3044-18-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download
memory/4220-34-0x0000016555030000-0x0000016555080000-memory.dmp

Filesize
320KB

Download
memory/4220-33-0x000001656DB00000-0x000001656DB76000-memory.dmp

Filesize
472KB

Download
memory/4220-35-0x0000016554FD0000-0x0000016554FEE000-memory.dmp

Filesize
120KB

Download
memory/4220-0-0x00007FFBFB083000-0x00007FFBFB085000-memory.dmp

Filesize
8KB

Download
memory/4220-1-0x0000016553350000-0x0000016553390000-memory.dmp

Filesize
256KB

Download
memory/4220-72-0x0000016555010000-0x000001655501A000-memory.dmp

Filesize
40KB

Download
memory/4220-73-0x000001656DB80000-0x000001656DB92000-memory.dmp

Filesize
72KB

Download
memory/4220-2-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download
memory/4220-89-0x00007FFBFB083000-0x00007FFBFB085000-memory.dmp

Filesize
8KB

Download
memory/4220-90-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download
memory/4220-95-0x00007FFBFB080000-0x00007FFBFBB41000-memory.dmp

Filesize
10.8MB

Download