umbral | 988e18df0a992354434f712880cc3fc7b2037392736138be3b8758bd889065fb

Analysis

max time kernel
147s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
06-08-2024 13:47

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General

Target

Cheat.exe
Size

229KB
MD5

57b52820e80bbf21cb91858308b64a43
SHA1

681de078a2bab05ff51d6b211a6136cd0a4cf5c5
SHA256

cad17c73e90686eee88e8e73039d69d0969a544a20d324cb30efe4849bf22be2
SHA512

981daa6346b6887d92fc77e865a9de661ebdf5216cca2c05a2817b28833a02a07ae5c64d181990dd0d86971e740a44e709b058a50cbef146066e00bce6628454
SSDEEP

6144:tloZMcrIkd8g+EtXHkv/iD49XVt8il92+De8NhoMi2b8e1m4ohi:voZrL+EP89XVt8il92+De8NhoQG4

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2800-0-0x0000021C94CA0000-0x0000021C94CE0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4948	powershell.exe
4984	powershell.exe
796	powershell.exe
3840	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

flow	ioc
1	discord.com
5	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
1	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
3856	cmd.exe
3940	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1944	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3940	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2800	Cheat.exe
4948	powershell.exe
4948	powershell.exe
3840	powershell.exe
3840	powershell.exe
4984	powershell.exe
4984	powershell.exe
3564	powershell.exe
3564	powershell.exe
796	powershell.exe
796	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2800	Cheat.exe
Token: SeIncreaseQuotaPrivilege	2692	wmic.exe
Token: SeSecurityPrivilege	2692	wmic.exe
Token: SeTakeOwnershipPrivilege	2692	wmic.exe
Token: SeLoadDriverPrivilege	2692	wmic.exe
Token: SeSystemProfilePrivilege	2692	wmic.exe
Token: SeSystemtimePrivilege	2692	wmic.exe
Token: SeProfSingleProcessPrivilege	2692	wmic.exe
Token: SeIncBasePriorityPrivilege	2692	wmic.exe
Token: SeCreatePagefilePrivilege	2692	wmic.exe
Token: SeBackupPrivilege	2692	wmic.exe
Token: SeRestorePrivilege	2692	wmic.exe
Token: SeShutdownPrivilege	2692	wmic.exe
Token: SeDebugPrivilege	2692	wmic.exe
Token: SeSystemEnvironmentPrivilege	2692	wmic.exe
Token: SeRemoteShutdownPrivilege	2692	wmic.exe
Token: SeUndockPrivilege	2692	wmic.exe
Token: SeManageVolumePrivilege	2692	wmic.exe
Token: 33	2692	wmic.exe
Token: 34	2692	wmic.exe
Token: 35	2692	wmic.exe
Token: 36	2692	wmic.exe
Token: SeIncreaseQuotaPrivilege	2692	wmic.exe
Token: SeSecurityPrivilege	2692	wmic.exe
Token: SeTakeOwnershipPrivilege	2692	wmic.exe
Token: SeLoadDriverPrivilege	2692	wmic.exe
Token: SeSystemProfilePrivilege	2692	wmic.exe
Token: SeSystemtimePrivilege	2692	wmic.exe
Token: SeProfSingleProcessPrivilege	2692	wmic.exe
Token: SeIncBasePriorityPrivilege	2692	wmic.exe
Token: SeCreatePagefilePrivilege	2692	wmic.exe
Token: SeBackupPrivilege	2692	wmic.exe
Token: SeRestorePrivilege	2692	wmic.exe
Token: SeShutdownPrivilege	2692	wmic.exe
Token: SeDebugPrivilege	2692	wmic.exe
Token: SeSystemEnvironmentPrivilege	2692	wmic.exe
Token: SeRemoteShutdownPrivilege	2692	wmic.exe
Token: SeUndockPrivilege	2692	wmic.exe
Token: SeManageVolumePrivilege	2692	wmic.exe
Token: 33	2692	wmic.exe
Token: 34	2692	wmic.exe
Token: 35	2692	wmic.exe
Token: 36	2692	wmic.exe
Token: SeDebugPrivilege	4948	powershell.exe
Token: SeDebugPrivilege	3840	powershell.exe
Token: SeDebugPrivilege	4984	powershell.exe
Token: SeDebugPrivilege	3564	powershell.exe
Token: SeIncreaseQuotaPrivilege	928	wmic.exe
Token: SeSecurityPrivilege	928	wmic.exe
Token: SeTakeOwnershipPrivilege	928	wmic.exe
Token: SeLoadDriverPrivilege	928	wmic.exe
Token: SeSystemProfilePrivilege	928	wmic.exe
Token: SeSystemtimePrivilege	928	wmic.exe
Token: SeProfSingleProcessPrivilege	928	wmic.exe
Token: SeIncBasePriorityPrivilege	928	wmic.exe
Token: SeCreatePagefilePrivilege	928	wmic.exe
Token: SeBackupPrivilege	928	wmic.exe
Token: SeRestorePrivilege	928	wmic.exe
Token: SeShutdownPrivilege	928	wmic.exe
Token: SeDebugPrivilege	928	wmic.exe
Token: SeSystemEnvironmentPrivilege	928	wmic.exe
Token: SeRemoteShutdownPrivilege	928	wmic.exe
Token: SeUndockPrivilege	928	wmic.exe
Token: SeManageVolumePrivilege	928	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 2692	2800	Cheat.exe	78
PID 2800 wrote to memory of 2692	2800	Cheat.exe	78
PID 2800 wrote to memory of 1420	2800	Cheat.exe	81
PID 2800 wrote to memory of 1420	2800	Cheat.exe	81
PID 2800 wrote to memory of 4948	2800	Cheat.exe	83
PID 2800 wrote to memory of 4948	2800	Cheat.exe	83
PID 2800 wrote to memory of 3840	2800	Cheat.exe	85
PID 2800 wrote to memory of 3840	2800	Cheat.exe	85
PID 2800 wrote to memory of 4984	2800	Cheat.exe	87
PID 2800 wrote to memory of 4984	2800	Cheat.exe	87
PID 2800 wrote to memory of 3564	2800	Cheat.exe	89
PID 2800 wrote to memory of 3564	2800	Cheat.exe	89
PID 2800 wrote to memory of 928	2800	Cheat.exe	91
PID 2800 wrote to memory of 928	2800	Cheat.exe	91
PID 2800 wrote to memory of 3032	2800	Cheat.exe	93
PID 2800 wrote to memory of 3032	2800	Cheat.exe	93
PID 2800 wrote to memory of 2228	2800	Cheat.exe	95
PID 2800 wrote to memory of 2228	2800	Cheat.exe	95
PID 2800 wrote to memory of 796	2800	Cheat.exe	97
PID 2800 wrote to memory of 796	2800	Cheat.exe	97
PID 2800 wrote to memory of 1944	2800	Cheat.exe	99
PID 2800 wrote to memory of 1944	2800	Cheat.exe	99
PID 2800 wrote to memory of 3856	2800	Cheat.exe	101
PID 2800 wrote to memory of 3856	2800	Cheat.exe	101
PID 3856 wrote to memory of 3940	3856	cmd.exe	103
PID 3856 wrote to memory of 3940	3856	cmd.exe	103

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1420	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Cheat.exe
"C:\Users\Admin\AppData\Local\Temp\Cheat.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2692
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Cheat.exe"
  2⤵
  - Views/modifies file attributes
  PID:1420
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Cheat.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4948
- 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:3840
- 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:4984
- 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:3564
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:928
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2228
- 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:796
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1944
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Cheat.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3856
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3940

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
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

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

Filesize
948B

MD5
c230f1a32f68ffad79c2565eef0c7b46

SHA1
c6a64c0d274515bd1678613291a63761dfdeb00d

SHA256
fcf7ecf08eb2c56ee80d65e01c46d72973e821fb50e7e2e4ebce36efaa5b6303

SHA512
79ad7c0f720251555af84adf0de4f15e6f824ac5af47a2446c27d4534bc230e686fb96d2b07cf44b23e32fe2142413b80d57a1bddc7a3f0738bcc4c62fe93759

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

Filesize
1KB

MD5
7332074ae2b01262736b6fbd9e100dac

SHA1
22f992165065107cc9417fa4117240d84414a13c

SHA256
baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

SHA512
4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

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

Filesize
1KB

MD5
cb2537b95d76b36f1110219bde127d2a

SHA1
b32ab5ea919207d25749d8af8b21e954615ddbc8

SHA256
b270e73c312010b0e028879f63897e95e4a1f0d87d4964a18d587160c7c4797c

SHA512
113b0ea81a3af8902a4c441f29a90b43146089688deda301b5e08c2366a297c464c527ffb5fb707a4270bcad8c72331b512a87301365d759036ea2222be8806b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0rvl2xmf.qfm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2800-65-0x0000021CAF430000-0x0000021CAF43A000-memory.dmp

Filesize
40KB

Download
memory/2800-31-0x0000021CAF3F0000-0x0000021CAF40E000-memory.dmp

Filesize
120KB

Download
memory/2800-83-0x00007FFE0DBF0000-0x00007FFE0E6B2000-memory.dmp

Filesize
10.8MB

Download
memory/2800-66-0x0000021CAF530000-0x0000021CAF542000-memory.dmp

Filesize
72KB

Download
memory/2800-2-0x00007FFE0DBF0000-0x00007FFE0E6B2000-memory.dmp

Filesize
10.8MB

Download
memory/2800-29-0x0000021CAF460000-0x0000021CAF4D6000-memory.dmp

Filesize
472KB

Download
memory/2800-30-0x0000021CAF4E0000-0x0000021CAF530000-memory.dmp

Filesize
320KB

Download
memory/2800-0-0x0000021C94CA0000-0x0000021C94CE0000-memory.dmp

Filesize
256KB

Download
memory/2800-1-0x00007FFE0DBF3000-0x00007FFE0DBF5000-memory.dmp

Filesize
8KB

Download
memory/4948-14-0x00007FFE0DBF0000-0x00007FFE0E6B2000-memory.dmp

Filesize
10.8MB

Download
memory/4948-5-0x0000022666790000-0x00000226667B2000-memory.dmp

Filesize
136KB

Download
memory/4948-13-0x00007FFE0DBF0000-0x00007FFE0E6B2000-memory.dmp

Filesize
10.8MB

Download
memory/4948-12-0x00007FFE0DBF0000-0x00007FFE0E6B2000-memory.dmp

Filesize
10.8MB

Download
memory/4948-17-0x00007FFE0DBF0000-0x00007FFE0E6B2000-memory.dmp

Filesize
10.8MB

Download