umbral | 69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 22:45

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General

Target

69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe
Size

229KB
MD5

cbbf1ff408089c98de723a2bd5720e50
SHA1

a186fb0e8cb8ce8c65c473a07a42b9abd29d699d
SHA256

69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49
SHA512

92f1df204fd200685a90de370437c255520e33c66dd7e6e667985c14b99ea449d69709591102db0ae91fd35fef70a13c6dea02c3d5a4417b891befc60816f1ec
SSDEEP

6144:9loZM+rIkd8g+EtXHkv/iD4giX9UgGhZq+fiQBFUuQb8e1mLucSUi:foZtL+EP8gI9UgGhZq+fiQBFUT33d

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3544-1-0x0000029826330000-0x0000029826370000-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

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

execution

PowerShell

T1059.001

pid	Process
3160	powershell.exe
3836	powershell.exe
4632	powershell.exe
2000	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.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
23	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
5	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
4200	cmd.exe
632	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2540	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
632	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe
3160	powershell.exe
3160	powershell.exe
3836	powershell.exe
3836	powershell.exe
4632	powershell.exe
4632	powershell.exe
772	powershell.exe
772	powershell.exe
2000	powershell.exe
2000	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe
Token: SeIncreaseQuotaPrivilege	3784	wmic.exe
Token: SeSecurityPrivilege	3784	wmic.exe
Token: SeTakeOwnershipPrivilege	3784	wmic.exe
Token: SeLoadDriverPrivilege	3784	wmic.exe
Token: SeSystemProfilePrivilege	3784	wmic.exe
Token: SeSystemtimePrivilege	3784	wmic.exe
Token: SeProfSingleProcessPrivilege	3784	wmic.exe
Token: SeIncBasePriorityPrivilege	3784	wmic.exe
Token: SeCreatePagefilePrivilege	3784	wmic.exe
Token: SeBackupPrivilege	3784	wmic.exe
Token: SeRestorePrivilege	3784	wmic.exe
Token: SeShutdownPrivilege	3784	wmic.exe
Token: SeDebugPrivilege	3784	wmic.exe
Token: SeSystemEnvironmentPrivilege	3784	wmic.exe
Token: SeRemoteShutdownPrivilege	3784	wmic.exe
Token: SeUndockPrivilege	3784	wmic.exe
Token: SeManageVolumePrivilege	3784	wmic.exe
Token: 33	3784	wmic.exe
Token: 34	3784	wmic.exe
Token: 35	3784	wmic.exe
Token: 36	3784	wmic.exe
Token: SeIncreaseQuotaPrivilege	3784	wmic.exe
Token: SeSecurityPrivilege	3784	wmic.exe
Token: SeTakeOwnershipPrivilege	3784	wmic.exe
Token: SeLoadDriverPrivilege	3784	wmic.exe
Token: SeSystemProfilePrivilege	3784	wmic.exe
Token: SeSystemtimePrivilege	3784	wmic.exe
Token: SeProfSingleProcessPrivilege	3784	wmic.exe
Token: SeIncBasePriorityPrivilege	3784	wmic.exe
Token: SeCreatePagefilePrivilege	3784	wmic.exe
Token: SeBackupPrivilege	3784	wmic.exe
Token: SeRestorePrivilege	3784	wmic.exe
Token: SeShutdownPrivilege	3784	wmic.exe
Token: SeDebugPrivilege	3784	wmic.exe
Token: SeSystemEnvironmentPrivilege	3784	wmic.exe
Token: SeRemoteShutdownPrivilege	3784	wmic.exe
Token: SeUndockPrivilege	3784	wmic.exe
Token: SeManageVolumePrivilege	3784	wmic.exe
Token: 33	3784	wmic.exe
Token: 34	3784	wmic.exe
Token: 35	3784	wmic.exe
Token: 36	3784	wmic.exe
Token: SeDebugPrivilege	3160	powershell.exe
Token: SeDebugPrivilege	3836	powershell.exe
Token: SeDebugPrivilege	4632	powershell.exe
Token: SeDebugPrivilege	772	powershell.exe
Token: SeIncreaseQuotaPrivilege	5056	wmic.exe
Token: SeSecurityPrivilege	5056	wmic.exe
Token: SeTakeOwnershipPrivilege	5056	wmic.exe
Token: SeLoadDriverPrivilege	5056	wmic.exe
Token: SeSystemProfilePrivilege	5056	wmic.exe
Token: SeSystemtimePrivilege	5056	wmic.exe
Token: SeProfSingleProcessPrivilege	5056	wmic.exe
Token: SeIncBasePriorityPrivilege	5056	wmic.exe
Token: SeCreatePagefilePrivilege	5056	wmic.exe
Token: SeBackupPrivilege	5056	wmic.exe
Token: SeRestorePrivilege	5056	wmic.exe
Token: SeShutdownPrivilege	5056	wmic.exe
Token: SeDebugPrivilege	5056	wmic.exe
Token: SeSystemEnvironmentPrivilege	5056	wmic.exe
Token: SeRemoteShutdownPrivilege	5056	wmic.exe
Token: SeUndockPrivilege	5056	wmic.exe
Token: SeManageVolumePrivilege	5056	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3544 wrote to memory of 3784	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	83
PID 3544 wrote to memory of 3784	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	83
PID 3544 wrote to memory of 1208	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	86
PID 3544 wrote to memory of 1208	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	86
PID 3544 wrote to memory of 3160	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	88
PID 3544 wrote to memory of 3160	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	88
PID 3544 wrote to memory of 3836	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	90
PID 3544 wrote to memory of 3836	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	90
PID 3544 wrote to memory of 4632	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	92
PID 3544 wrote to memory of 4632	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	92
PID 3544 wrote to memory of 772	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	94
PID 3544 wrote to memory of 772	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	94
PID 3544 wrote to memory of 5056	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	98
PID 3544 wrote to memory of 5056	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	98
PID 3544 wrote to memory of 4320	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	100
PID 3544 wrote to memory of 4320	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	100
PID 3544 wrote to memory of 4436	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	102
PID 3544 wrote to memory of 4436	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	102
PID 3544 wrote to memory of 2000	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	105
PID 3544 wrote to memory of 2000	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	105
PID 3544 wrote to memory of 2540	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	108
PID 3544 wrote to memory of 2540	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	108
PID 3544 wrote to memory of 4200	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	110
PID 3544 wrote to memory of 4200	3544	69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe	110
PID 4200 wrote to memory of 632	4200	cmd.exe	112
PID 4200 wrote to memory of 632	4200	cmd.exe	112

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1208	attrib.exe

C:\Users\Admin\AppData\Local\Temp\69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe
"C:\Users\Admin\AppData\Local\Temp\69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3544
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3784
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe"
  2⤵
  - Views/modifies file attributes
  PID:1208
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3160
- 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:3836
- 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:4632
- 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:772
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5056
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4320
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4436
- 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:2000
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2540
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\69f81a0239ba12507c8e9aec8e3d1667d230d38daadf50039b7968b2ca5e1b49N.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4200
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:632

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
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
948B

MD5
2b566ffd6de9e256d318da539ea226be

SHA1
5687791670b1391754d5c4d80e520cf7e3edd3db

SHA256
c292acf9fdd61c1cc21b4e3139b32b20b878b7094e7b30fc9d255f0bf60059ef

SHA512
3d76037af1080d099ef0037d1e49a40c883e452bb2e4d8f528d5f824142189ea92faa03488cadee2b30ec9b3a8283935a8b3c26e10578dd1ebbca9eda3a5ea7c

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
45ad40f012b09e141955482368549640

SHA1
3f9cd15875c1e397c3b2b5592805577ae88a96cb

SHA256
ea3b59172f1a33677f9cb3843fb4d6093b806d3a7cf2f3c6d4692f5421f656ce

SHA512
3de08f8affca1c1450088f560776cf3d65146cadac43c06eb922c7b3cea436e519966cf38458303ffeb1a58c53f8952cffda6c34216fda7594e014b516e83b33

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wagbo3zw.1u4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3160-12-0x000002591F6C0000-0x000002591F6E2000-memory.dmp

Filesize
136KB

Download
memory/3160-14-0x00007FFCD4140000-0x00007FFCD4C01000-memory.dmp

Filesize
10.8MB

Download
memory/3160-15-0x00007FFCD4140000-0x00007FFCD4C01000-memory.dmp

Filesize
10.8MB

Download
memory/3160-18-0x00007FFCD4140000-0x00007FFCD4C01000-memory.dmp

Filesize
10.8MB

Download
memory/3160-13-0x00007FFCD4140000-0x00007FFCD4C01000-memory.dmp

Filesize
10.8MB

Download
memory/3544-34-0x0000029828010000-0x0000029828060000-memory.dmp

Filesize
320KB

Download
memory/3544-33-0x0000029840AF0000-0x0000029840B66000-memory.dmp

Filesize
472KB

Download
memory/3544-35-0x0000029827FC0000-0x0000029827FDE000-memory.dmp

Filesize
120KB

Download
memory/3544-1-0x0000029826330000-0x0000029826370000-memory.dmp

Filesize
256KB

Download
memory/3544-0-0x00007FFCD4143000-0x00007FFCD4145000-memory.dmp

Filesize
8KB

Download
memory/3544-72-0x0000029827FF0000-0x0000029827FFA000-memory.dmp

Filesize
40KB

Download
memory/3544-73-0x0000029828080000-0x0000029828092000-memory.dmp

Filesize
72KB

Download
memory/3544-2-0x00007FFCD4140000-0x00007FFCD4C01000-memory.dmp

Filesize
10.8MB

Download
memory/3544-93-0x00007FFCD4140000-0x00007FFCD4C01000-memory.dmp

Filesize
10.8MB

Download