umbral | e5b6961e667669a720b10532464f250a31532af60f61a4dbab128ae79da80382

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2024 09:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Wave.exe
Size

230KB
MD5

8abaecb6ec29fc2d34b4639fce34a7de
SHA1

74dc5690b5d337fe2ab0cb9e9ec7ce304458c2c5
SHA256

e5b6961e667669a720b10532464f250a31532af60f61a4dbab128ae79da80382
SHA512

6276b1c51f8ffb7cfeb7d15c22842ad59788b857761e5df3914b03b4642dfe0fc23108e03f1306bdeb3a1cc73540a0008f081b250ae3cfa3c5ffc6e05fbd990d
SSDEEP

6144:1loZM+rIkd8g+EtXHkv/iD495hya43TwVJc6rrSDwb8e1mNCpi:XoZtL+EP895hya43TwVJc6rrSUi

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3084-0-0x000001B0C2C80000-0x000001B0C2CC0000-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
4944	powershell.exe
4464	powershell.exe
4188	powershell.exe
4788	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Wave.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
26	discord.com
27	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
3	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
2424	cmd.exe
3616	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4912	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3616	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3084	Wave.exe
4944	powershell.exe
4944	powershell.exe
4464	powershell.exe
4464	powershell.exe
4188	powershell.exe
4188	powershell.exe
1008	powershell.exe
1008	powershell.exe
4788	powershell.exe
4788	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3084	Wave.exe
Token: SeIncreaseQuotaPrivilege	3252	wmic.exe
Token: SeSecurityPrivilege	3252	wmic.exe
Token: SeTakeOwnershipPrivilege	3252	wmic.exe
Token: SeLoadDriverPrivilege	3252	wmic.exe
Token: SeSystemProfilePrivilege	3252	wmic.exe
Token: SeSystemtimePrivilege	3252	wmic.exe
Token: SeProfSingleProcessPrivilege	3252	wmic.exe
Token: SeIncBasePriorityPrivilege	3252	wmic.exe
Token: SeCreatePagefilePrivilege	3252	wmic.exe
Token: SeBackupPrivilege	3252	wmic.exe
Token: SeRestorePrivilege	3252	wmic.exe
Token: SeShutdownPrivilege	3252	wmic.exe
Token: SeDebugPrivilege	3252	wmic.exe
Token: SeSystemEnvironmentPrivilege	3252	wmic.exe
Token: SeRemoteShutdownPrivilege	3252	wmic.exe
Token: SeUndockPrivilege	3252	wmic.exe
Token: SeManageVolumePrivilege	3252	wmic.exe
Token: 33	3252	wmic.exe
Token: 34	3252	wmic.exe
Token: 35	3252	wmic.exe
Token: 36	3252	wmic.exe
Token: SeIncreaseQuotaPrivilege	3252	wmic.exe
Token: SeSecurityPrivilege	3252	wmic.exe
Token: SeTakeOwnershipPrivilege	3252	wmic.exe
Token: SeLoadDriverPrivilege	3252	wmic.exe
Token: SeSystemProfilePrivilege	3252	wmic.exe
Token: SeSystemtimePrivilege	3252	wmic.exe
Token: SeProfSingleProcessPrivilege	3252	wmic.exe
Token: SeIncBasePriorityPrivilege	3252	wmic.exe
Token: SeCreatePagefilePrivilege	3252	wmic.exe
Token: SeBackupPrivilege	3252	wmic.exe
Token: SeRestorePrivilege	3252	wmic.exe
Token: SeShutdownPrivilege	3252	wmic.exe
Token: SeDebugPrivilege	3252	wmic.exe
Token: SeSystemEnvironmentPrivilege	3252	wmic.exe
Token: SeRemoteShutdownPrivilege	3252	wmic.exe
Token: SeUndockPrivilege	3252	wmic.exe
Token: SeManageVolumePrivilege	3252	wmic.exe
Token: 33	3252	wmic.exe
Token: 34	3252	wmic.exe
Token: 35	3252	wmic.exe
Token: 36	3252	wmic.exe
Token: SeDebugPrivilege	4944	powershell.exe
Token: SeDebugPrivilege	4464	powershell.exe
Token: SeDebugPrivilege	4188	powershell.exe
Token: SeDebugPrivilege	1008	powershell.exe
Token: SeIncreaseQuotaPrivilege	1828	wmic.exe
Token: SeSecurityPrivilege	1828	wmic.exe
Token: SeTakeOwnershipPrivilege	1828	wmic.exe
Token: SeLoadDriverPrivilege	1828	wmic.exe
Token: SeSystemProfilePrivilege	1828	wmic.exe
Token: SeSystemtimePrivilege	1828	wmic.exe
Token: SeProfSingleProcessPrivilege	1828	wmic.exe
Token: SeIncBasePriorityPrivilege	1828	wmic.exe
Token: SeCreatePagefilePrivilege	1828	wmic.exe
Token: SeBackupPrivilege	1828	wmic.exe
Token: SeRestorePrivilege	1828	wmic.exe
Token: SeShutdownPrivilege	1828	wmic.exe
Token: SeDebugPrivilege	1828	wmic.exe
Token: SeSystemEnvironmentPrivilege	1828	wmic.exe
Token: SeRemoteShutdownPrivilege	1828	wmic.exe
Token: SeUndockPrivilege	1828	wmic.exe
Token: SeManageVolumePrivilege	1828	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3084 wrote to memory of 3252	3084	Wave.exe	86
PID 3084 wrote to memory of 3252	3084	Wave.exe	86
PID 3084 wrote to memory of 3300	3084	Wave.exe	90
PID 3084 wrote to memory of 3300	3084	Wave.exe	90
PID 3084 wrote to memory of 4944	3084	Wave.exe	92
PID 3084 wrote to memory of 4944	3084	Wave.exe	92
PID 3084 wrote to memory of 4464	3084	Wave.exe	94
PID 3084 wrote to memory of 4464	3084	Wave.exe	94
PID 3084 wrote to memory of 4188	3084	Wave.exe	96
PID 3084 wrote to memory of 4188	3084	Wave.exe	96
PID 3084 wrote to memory of 1008	3084	Wave.exe	99
PID 3084 wrote to memory of 1008	3084	Wave.exe	99
PID 3084 wrote to memory of 1828	3084	Wave.exe	102
PID 3084 wrote to memory of 1828	3084	Wave.exe	102
PID 3084 wrote to memory of 2872	3084	Wave.exe	104
PID 3084 wrote to memory of 2872	3084	Wave.exe	104
PID 3084 wrote to memory of 3484	3084	Wave.exe	106
PID 3084 wrote to memory of 3484	3084	Wave.exe	106
PID 3084 wrote to memory of 4788	3084	Wave.exe	108
PID 3084 wrote to memory of 4788	3084	Wave.exe	108
PID 3084 wrote to memory of 4912	3084	Wave.exe	110
PID 3084 wrote to memory of 4912	3084	Wave.exe	110
PID 3084 wrote to memory of 2424	3084	Wave.exe	112
PID 3084 wrote to memory of 2424	3084	Wave.exe	112
PID 2424 wrote to memory of 3616	2424	cmd.exe	114
PID 2424 wrote to memory of 3616	2424	cmd.exe	114

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3300	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Wave.exe
"C:\Users\Admin\AppData\Local\Temp\Wave.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3252
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Wave.exe"
  2⤵
  - Views/modifies file attributes
  PID:3300
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Wave.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4944
- 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:4464
- 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:4188
- 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:1008
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1828
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2872
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3484
- 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:4788
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4912
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Wave.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2424
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3616

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

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
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
c65738617888921a153bd9b1ef516ee7

SHA1
5245e71ea3c181d76320c857b639272ac9e079b1

SHA256
4640ba4001fd16a593315299cbdd4988dc2c7075820687f1018aac40aca95c26

SHA512
2e2a0ebd93f9d8dd07a7599054bce232683e9add9a35e77b584618040bcfd84a42545352519ec4736cc379002210b6f3ed2d905591c6925c0981b0392b495bfa

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
6317adf4fbc43ea2fd68861fafd57155

SHA1
6b87c718893c83c6eed2767e8d9cbc6443e31913

SHA256
c1ead17eef37b4b461cedc276504a441489e819c7f943037f2001966aeec90af

SHA512
17229aae8622e4bfc3caaac55684f7d4ccd3162af5919c851b1d8ac4060b6bb7b75044ecee116523d05acb55197dcb60780958f629450edef386f1e6f65f49f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kbkvocm3.ong.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3084-72-0x000001B0DD140000-0x000001B0DD152000-memory.dmp

Filesize
72KB

Download
memory/3084-35-0x000001B0DD490000-0x000001B0DD4AE000-memory.dmp

Filesize
120KB

Download
memory/3084-90-0x00007FFF950E0000-0x00007FFF95BA1000-memory.dmp

Filesize
10.8MB

Download
memory/3084-71-0x000001B0DD110000-0x000001B0DD11A000-memory.dmp

Filesize
40KB

Download
memory/3084-2-0x00007FFF950E0000-0x00007FFF95BA1000-memory.dmp

Filesize
10.8MB

Download
memory/3084-33-0x000001B0DD3B0000-0x000001B0DD426000-memory.dmp

Filesize
472KB

Download
memory/3084-34-0x000001B0DD430000-0x000001B0DD480000-memory.dmp

Filesize
320KB

Download
memory/3084-0-0x000001B0C2C80000-0x000001B0C2CC0000-memory.dmp

Filesize
256KB

Download
memory/3084-1-0x00007FFF950E3000-0x00007FFF950E5000-memory.dmp

Filesize
8KB

Download
memory/4944-15-0x00000185EB540000-0x00000185EB562000-memory.dmp

Filesize
136KB

Download
memory/4944-4-0x00007FFF950E0000-0x00007FFF95BA1000-memory.dmp

Filesize
10.8MB

Download
memory/4944-3-0x00007FFF950E0000-0x00007FFF95BA1000-memory.dmp

Filesize
10.8MB

Download
memory/4944-5-0x00007FFF950E0000-0x00007FFF95BA1000-memory.dmp

Filesize
10.8MB

Download
memory/4944-18-0x00007FFF950E0000-0x00007FFF95BA1000-memory.dmp

Filesize
10.8MB

Download