umbral | 0c6199877d4e33673f8382783092bed633fb5c763cfecaefa868becb90552574

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
26-06-2024 07:48

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General

Target

New Project 1.exe
Size

2.8MB
MD5

db5a82d0ebc91356da9a392623ef4091
SHA1

a264cb459225c04cfcc77d06286f043404abc995
SHA256

0c6199877d4e33673f8382783092bed633fb5c763cfecaefa868becb90552574
SHA512

51a88d50ca409e11355b0b1966298ab89c5003eabfca200af844dba4010fe22ac1e85525c9dcbd4afc06353d282d5579aa3fb1cf71218e7c5a0fd5ab789ceb8b
SSDEEP

49152:obKHLmcpC9UO0fabN1NVnfJVeAqqI8bmCMFjl4UwFUy:WznOaxVBYAqqNnIwFU

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 3 IoCs

resource	yara_rule
behavioral2/memory/3064-0-0x0000000000400000-0x00000000006D4000-memory.dmp	family_umbral
behavioral2/files/0x00070000000233ee-63.dat	family_umbral
behavioral2/memory/1864-120-0x000001D56B700000-0x000001D56B740000-memory.dmp	family_umbral

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4728	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	12345768.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	New Project 1.exe

Executes dropped EXE 2 IoCs

pid	Process
4092	xdwd.exe
1864	12345768.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
20	discord.com
21	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
14	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4624	wmic.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	New Project 1.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2044	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1864	12345768.exe
4728	powershell.exe
4728	powershell.exe
1000	powershell.exe
1000	powershell.exe
1548	powershell.exe
1548	powershell.exe
3560	powershell.exe
3560	powershell.exe
4760	powershell.exe
4760	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	12345768.exe
Token: SeIncreaseQuotaPrivilege	3744	wmic.exe
Token: SeSecurityPrivilege	3744	wmic.exe
Token: SeTakeOwnershipPrivilege	3744	wmic.exe
Token: SeLoadDriverPrivilege	3744	wmic.exe
Token: SeSystemProfilePrivilege	3744	wmic.exe
Token: SeSystemtimePrivilege	3744	wmic.exe
Token: SeProfSingleProcessPrivilege	3744	wmic.exe
Token: SeIncBasePriorityPrivilege	3744	wmic.exe
Token: SeCreatePagefilePrivilege	3744	wmic.exe
Token: SeBackupPrivilege	3744	wmic.exe
Token: SeRestorePrivilege	3744	wmic.exe
Token: SeShutdownPrivilege	3744	wmic.exe
Token: SeDebugPrivilege	3744	wmic.exe
Token: SeSystemEnvironmentPrivilege	3744	wmic.exe
Token: SeRemoteShutdownPrivilege	3744	wmic.exe
Token: SeUndockPrivilege	3744	wmic.exe
Token: SeManageVolumePrivilege	3744	wmic.exe
Token: 33	3744	wmic.exe
Token: 34	3744	wmic.exe
Token: 35	3744	wmic.exe
Token: 36	3744	wmic.exe
Token: SeIncreaseQuotaPrivilege	3744	wmic.exe
Token: SeSecurityPrivilege	3744	wmic.exe
Token: SeTakeOwnershipPrivilege	3744	wmic.exe
Token: SeLoadDriverPrivilege	3744	wmic.exe
Token: SeSystemProfilePrivilege	3744	wmic.exe
Token: SeSystemtimePrivilege	3744	wmic.exe
Token: SeProfSingleProcessPrivilege	3744	wmic.exe
Token: SeIncBasePriorityPrivilege	3744	wmic.exe
Token: SeCreatePagefilePrivilege	3744	wmic.exe
Token: SeBackupPrivilege	3744	wmic.exe
Token: SeRestorePrivilege	3744	wmic.exe
Token: SeShutdownPrivilege	3744	wmic.exe
Token: SeDebugPrivilege	3744	wmic.exe
Token: SeSystemEnvironmentPrivilege	3744	wmic.exe
Token: SeRemoteShutdownPrivilege	3744	wmic.exe
Token: SeUndockPrivilege	3744	wmic.exe
Token: SeManageVolumePrivilege	3744	wmic.exe
Token: 33	3744	wmic.exe
Token: 34	3744	wmic.exe
Token: 35	3744	wmic.exe
Token: 36	3744	wmic.exe
Token: SeDebugPrivilege	4728	powershell.exe
Token: SeDebugPrivilege	1000	powershell.exe
Token: SeDebugPrivilege	1548	powershell.exe
Token: SeDebugPrivilege	3560	powershell.exe
Token: SeIncreaseQuotaPrivilege	4656	wmic.exe
Token: SeSecurityPrivilege	4656	wmic.exe
Token: SeTakeOwnershipPrivilege	4656	wmic.exe
Token: SeLoadDriverPrivilege	4656	wmic.exe
Token: SeSystemProfilePrivilege	4656	wmic.exe
Token: SeSystemtimePrivilege	4656	wmic.exe
Token: SeProfSingleProcessPrivilege	4656	wmic.exe
Token: SeIncBasePriorityPrivilege	4656	wmic.exe
Token: SeCreatePagefilePrivilege	4656	wmic.exe
Token: SeBackupPrivilege	4656	wmic.exe
Token: SeRestorePrivilege	4656	wmic.exe
Token: SeShutdownPrivilege	4656	wmic.exe
Token: SeDebugPrivilege	4656	wmic.exe
Token: SeSystemEnvironmentPrivilege	4656	wmic.exe
Token: SeRemoteShutdownPrivilege	4656	wmic.exe
Token: SeUndockPrivilege	4656	wmic.exe
Token: SeManageVolumePrivilege	4656	wmic.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 4092	3064	New Project 1.exe	81
PID 3064 wrote to memory of 4092	3064	New Project 1.exe	81
PID 3064 wrote to memory of 4092	3064	New Project 1.exe	81
PID 3064 wrote to memory of 1864	3064	New Project 1.exe	82
PID 3064 wrote to memory of 1864	3064	New Project 1.exe	82
PID 1864 wrote to memory of 3744	1864	12345768.exe	84
PID 1864 wrote to memory of 3744	1864	12345768.exe	84
PID 1864 wrote to memory of 2968	1864	12345768.exe	86
PID 1864 wrote to memory of 2968	1864	12345768.exe	86
PID 1864 wrote to memory of 4728	1864	12345768.exe	88
PID 1864 wrote to memory of 4728	1864	12345768.exe	88
PID 1864 wrote to memory of 1000	1864	12345768.exe	90
PID 1864 wrote to memory of 1000	1864	12345768.exe	90
PID 1864 wrote to memory of 1548	1864	12345768.exe	94
PID 1864 wrote to memory of 1548	1864	12345768.exe	94
PID 1864 wrote to memory of 3560	1864	12345768.exe	96
PID 1864 wrote to memory of 3560	1864	12345768.exe	96
PID 1864 wrote to memory of 4656	1864	12345768.exe	99
PID 1864 wrote to memory of 4656	1864	12345768.exe	99
PID 1864 wrote to memory of 4440	1864	12345768.exe	101
PID 1864 wrote to memory of 4440	1864	12345768.exe	101
PID 1864 wrote to memory of 2432	1864	12345768.exe	103
PID 1864 wrote to memory of 2432	1864	12345768.exe	103
PID 1864 wrote to memory of 4760	1864	12345768.exe	105
PID 1864 wrote to memory of 4760	1864	12345768.exe	105
PID 1864 wrote to memory of 4624	1864	12345768.exe	107
PID 1864 wrote to memory of 4624	1864	12345768.exe	107
PID 1864 wrote to memory of 2240	1864	12345768.exe	109
PID 1864 wrote to memory of 2240	1864	12345768.exe	109
PID 2240 wrote to memory of 2044	2240	cmd.exe	111
PID 2240 wrote to memory of 2044	2240	cmd.exe	111

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2968	attrib.exe

C:\Users\Admin\AppData\Local\Temp\New Project 1.exe
"C:\Users\Admin\AppData\Local\Temp\New Project 1.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Users\Admin\AppData\Local\xdwd.exe
  "C:\Users\Admin\AppData\Local\xdwd.exe"
  2⤵
  - Executes dropped EXE
  PID:4092
- C:\Users\Admin\AppData\Local\Temp\12345768.exe
  "C:\Users\Admin\AppData\Local\Temp\12345768.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1864
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3744
- - C:\Windows\SYSTEM32\attrib.exe
    "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\12345768.exe"
    3⤵
    - Views/modifies file attributes
    PID:2968
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\12345768.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4728
- - 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
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1000
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1548
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3560
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" os get Caption
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4656
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" computersystem get totalphysicalmemory
    3⤵
    PID:4440
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:2432
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4760
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic" path win32_VideoController get name
    3⤵
    - Detects videocard installed
    PID:4624
- - C:\Windows\SYSTEM32\cmd.exe
    "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\12345768.exe" && pause
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2240
  - - C:\Windows\system32\PING.EXE
      ping localhost
      4⤵
      Runs ping.exe
      PID:2044

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
985b3105d8889886d6fd953575c54e08

SHA1
0f9a041240a344d82bac0a180520e7982c15f3cd

SHA256
5178fdd457eb3eb25c8f72ed4c22c582a83de0d324db66d0446d660f226e944d

SHA512
0fd59bc4886b70aa3b7eeeaa23229b7fdc93410ca7f8452860e4a1bbda2559eaa5e4b05c3ec2d85f7d648daf3c16741f4c2c18f2dd3bae4cc4a4e57ae4f665b0

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
6aab9e4981c2519c41773cd2959610c3

SHA1
ee6fd0bea4d673fcd3d5dbb2bf30bd21a8c3405b

SHA256
d497af4e36e7dd2db0bf4b32b9b3339cadcde5a69d3cc64f6154fcb9d9a6dd36

SHA512
1919613172c02c50b367f7db74851a1d3589763f7bc9edea3e272f50e8ec7ebffd89aee6b6f45323dc2d4e5f70a0494fba7348a36ae9fbd5307559cc8ead1b13

Download Submit
C:\Users\Admin\AppData\Local\Temp\12345768.exe

Filesize
229KB

MD5
2f4f52ff66406c1469b08e47d3ac9bc2

SHA1
3414426471b257a2da77860c2d52a0ef0d05f485

SHA256
16aa26d084bc366c27a547f0ed5e5f7ac001b3f95355b9809cb5bfeff00dc5f0

SHA512
e622fcdddc0a4ae7d5afd60cf81f347192ae673ab2c19dbe6d1bf70b08c8309d315088bb20474edae8d3a1ef85b1f949bfc62016eb5632edfe6304fe04603986

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5y2qvjzn.sn0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\xdwd.exe

Filesize
1.6MB

MD5
bf4577bd343e7054fb178671a453d6ab

SHA1
10bff3a3100cf7cd718e2dc857e4ce70d6075473

SHA256
efa96d492077c2ad6bc002425716137714587937824792a6f20e0705f8395755

SHA512
c5a7c31767411761afa58c696a9e38e6e6c0c08eb8021015aa57a775fb1f053680c1459a1aad62795770c85153a226509422a95f56482f004df8030d505beeb2

Download Submit
memory/1864-155-0x000001D56DD10000-0x000001D56DD2E000-memory.dmp

Filesize
120KB

Download
memory/1864-153-0x000001D56DC90000-0x000001D56DD06000-memory.dmp

Filesize
472KB

Download
memory/1864-154-0x000001D56D510000-0x000001D56D560000-memory.dmp

Filesize
320KB

Download
memory/1864-121-0x00007FFFF3A33000-0x00007FFFF3A35000-memory.dmp

Filesize
8KB

Download
memory/1864-191-0x000001D56BD80000-0x000001D56BD8A000-memory.dmp

Filesize
40KB

Download
memory/1864-192-0x000001D56D560000-0x000001D56D572000-memory.dmp

Filesize
72KB

Download
memory/1864-120-0x000001D56B700000-0x000001D56B740000-memory.dmp

Filesize
256KB

Download
memory/3064-0-0x0000000000400000-0x00000000006D4000-memory.dmp

Filesize
2.8MB

Download
memory/4092-125-0x00000000056D0000-0x0000000005736000-memory.dmp

Filesize
408KB

Download
memory/4092-124-0x0000000005630000-0x00000000056C2000-memory.dmp

Filesize
584KB

Download
memory/4092-123-0x0000000000C30000-0x0000000000DDA000-memory.dmp

Filesize
1.7MB

Download
memory/4092-122-0x000000007287E000-0x000000007287F000-memory.dmp

Filesize
4KB

Download
memory/4728-129-0x0000011145A40000-0x0000011145A62000-memory.dmp

Filesize
136KB

Download