umbral | 419f948e7da8922465cefdda7d2a6b86adf6a6165c8bcf79963e5b2fd8a8f7d5

Analysis

max time kernel
93s
max time network
198s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
05/02/2024, 10:57

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General

Target

2222.exe
Size

227KB
MD5

2d609a4bb5b23b1811bf7f18c8d86504
SHA1

b3c21506848edd61dcc21e71ecbba740a9929f5b
SHA256

419f948e7da8922465cefdda7d2a6b86adf6a6165c8bcf79963e5b2fd8a8f7d5
SHA512

a73c96bba173c30e64a6d49a9da26b49fca44828f7d3aaa14d4070d1b55b0d0a891e3ba42565c6e94d4ebf085cbb6742b7f5c6956d1019d8fd4cdf07d13953e0
SSDEEP

6144:+loZMorIkd8g+EtXHkv/iD44Z44KInDAvZMK7bCpHb8e1mp8i:ooZHL+EP84Z44KInDAvZMK7bC9qV

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral3/memory/4936-0-0x0000017FA2D90000-0x0000017FA2DD0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
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
15	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1996	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3236	powershell.exe
3236	powershell.exe
3364	powershell.exe
3364	powershell.exe
4184	powershell.exe
4184	powershell.exe
1504	powershell.exe
1504	powershell.exe
3280	powershell.exe
3280	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4936	2222.exe
Token: SeDebugPrivilege	3236	powershell.exe
Token: SeDebugPrivilege	3364	powershell.exe
Token: SeDebugPrivilege	4184	powershell.exe
Token: SeDebugPrivilege	1504	powershell.exe
Token: SeIncreaseQuotaPrivilege	2336	wmic.exe
Token: SeSecurityPrivilege	2336	wmic.exe
Token: SeTakeOwnershipPrivilege	2336	wmic.exe
Token: SeLoadDriverPrivilege	2336	wmic.exe
Token: SeSystemProfilePrivilege	2336	wmic.exe
Token: SeSystemtimePrivilege	2336	wmic.exe
Token: SeProfSingleProcessPrivilege	2336	wmic.exe
Token: SeIncBasePriorityPrivilege	2336	wmic.exe
Token: SeCreatePagefilePrivilege	2336	wmic.exe
Token: SeBackupPrivilege	2336	wmic.exe
Token: SeRestorePrivilege	2336	wmic.exe
Token: SeShutdownPrivilege	2336	wmic.exe
Token: SeDebugPrivilege	2336	wmic.exe
Token: SeSystemEnvironmentPrivilege	2336	wmic.exe
Token: SeRemoteShutdownPrivilege	2336	wmic.exe
Token: SeUndockPrivilege	2336	wmic.exe
Token: SeManageVolumePrivilege	2336	wmic.exe
Token: 33	2336	wmic.exe
Token: 34	2336	wmic.exe
Token: 35	2336	wmic.exe
Token: 36	2336	wmic.exe
Token: SeIncreaseQuotaPrivilege	2336	wmic.exe
Token: SeSecurityPrivilege	2336	wmic.exe
Token: SeTakeOwnershipPrivilege	2336	wmic.exe
Token: SeLoadDriverPrivilege	2336	wmic.exe
Token: SeSystemProfilePrivilege	2336	wmic.exe
Token: SeSystemtimePrivilege	2336	wmic.exe
Token: SeProfSingleProcessPrivilege	2336	wmic.exe
Token: SeIncBasePriorityPrivilege	2336	wmic.exe
Token: SeCreatePagefilePrivilege	2336	wmic.exe
Token: SeBackupPrivilege	2336	wmic.exe
Token: SeRestorePrivilege	2336	wmic.exe
Token: SeShutdownPrivilege	2336	wmic.exe
Token: SeDebugPrivilege	2336	wmic.exe
Token: SeSystemEnvironmentPrivilege	2336	wmic.exe
Token: SeRemoteShutdownPrivilege	2336	wmic.exe
Token: SeUndockPrivilege	2336	wmic.exe
Token: SeManageVolumePrivilege	2336	wmic.exe
Token: 33	2336	wmic.exe
Token: 34	2336	wmic.exe
Token: 35	2336	wmic.exe
Token: 36	2336	wmic.exe
Token: SeIncreaseQuotaPrivilege	60	wmic.exe
Token: SeSecurityPrivilege	60	wmic.exe
Token: SeTakeOwnershipPrivilege	60	wmic.exe
Token: SeLoadDriverPrivilege	60	wmic.exe
Token: SeSystemProfilePrivilege	60	wmic.exe
Token: SeSystemtimePrivilege	60	wmic.exe
Token: SeProfSingleProcessPrivilege	60	wmic.exe
Token: SeIncBasePriorityPrivilege	60	wmic.exe
Token: SeCreatePagefilePrivilege	60	wmic.exe
Token: SeBackupPrivilege	60	wmic.exe
Token: SeRestorePrivilege	60	wmic.exe
Token: SeShutdownPrivilege	60	wmic.exe
Token: SeDebugPrivilege	60	wmic.exe
Token: SeSystemEnvironmentPrivilege	60	wmic.exe
Token: SeRemoteShutdownPrivilege	60	wmic.exe
Token: SeUndockPrivilege	60	wmic.exe
Token: SeManageVolumePrivilege	60	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 3236	4936	2222.exe	84
PID 4936 wrote to memory of 3236	4936	2222.exe	84
PID 4936 wrote to memory of 3364	4936	2222.exe	86
PID 4936 wrote to memory of 3364	4936	2222.exe	86
PID 4936 wrote to memory of 4184	4936	2222.exe	88
PID 4936 wrote to memory of 4184	4936	2222.exe	88
PID 4936 wrote to memory of 1504	4936	2222.exe	91
PID 4936 wrote to memory of 1504	4936	2222.exe	91
PID 4936 wrote to memory of 2336	4936	2222.exe	94
PID 4936 wrote to memory of 2336	4936	2222.exe	94
PID 4936 wrote to memory of 60	4936	2222.exe	105
PID 4936 wrote to memory of 60	4936	2222.exe	105
PID 4936 wrote to memory of 2700	4936	2222.exe	104
PID 4936 wrote to memory of 2700	4936	2222.exe	104
PID 4936 wrote to memory of 3280	4936	2222.exe	103
PID 4936 wrote to memory of 3280	4936	2222.exe	103
PID 4936 wrote to memory of 1996	4936	2222.exe	101
PID 4936 wrote to memory of 1996	4936	2222.exe	101

C:\Users\Admin\AppData\Local\Temp\2222.exe
"C:\Users\Admin\AppData\Local\Temp\2222.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2222.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3236
- 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⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3364
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4184
- 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:1504
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2336
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1996
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3280
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2700
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:60

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
1a58f982c18490e622e00d4eb75ace5a

SHA1
60c30527b74659ecf09089a5a7c02a1df9a71b65

SHA256
4b7f800c0dea209162cc86627983993127eb20e3f8616646c41cb3ce15d9b39d

SHA512
ddab516a967783c5951717853aa5b3ef6dd5b442db50092888b2e7f3179fc68120fcde69a08d6ab280740eaadb6eadfc758c3118b52706f869e48ac1aebda480

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_nbq30u13.012.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1504-76-0x000002BE7DEF0000-0x000002BE7DF00000-memory.dmp

Filesize
64KB

Download
memory/1504-78-0x000002BE7DEF0000-0x000002BE7DF00000-memory.dmp

Filesize
64KB

Download
memory/1504-70-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/1504-80-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/1504-75-0x000002BE7DEF0000-0x000002BE7DF00000-memory.dmp

Filesize
64KB

Download
memory/3236-8-0x0000015C43720000-0x0000015C43742000-memory.dmp

Filesize
136KB

Download
memory/3236-14-0x0000015C2AFA0000-0x0000015C2AFB0000-memory.dmp

Filesize
64KB

Download
memory/3236-9-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/3236-17-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/3280-97-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/3280-99-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/3364-30-0x000001BFF8330000-0x000001BFF8340000-memory.dmp

Filesize
64KB

Download
memory/3364-33-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/3364-31-0x000001BFF8330000-0x000001BFF8340000-memory.dmp

Filesize
64KB

Download
memory/3364-24-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/4184-48-0x0000028A6A970000-0x0000028A6A980000-memory.dmp

Filesize
64KB

Download
memory/4184-51-0x0000028A6A970000-0x0000028A6A980000-memory.dmp

Filesize
64KB

Download
memory/4184-43-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/4184-64-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/4936-36-0x0000017FBD470000-0x0000017FBD4C0000-memory.dmp

Filesize
320KB

Download
memory/4936-0-0x0000017FA2D90000-0x0000017FA2DD0000-memory.dmp

Filesize
256KB

Download
memory/4936-1-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/4936-83-0x0000017FBD580000-0x0000017FBD592000-memory.dmp

Filesize
72KB

Download
memory/4936-82-0x0000017FBD550000-0x0000017FBD55A000-memory.dmp

Filesize
40KB

Download
memory/4936-96-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download
memory/4936-37-0x0000017FBD440000-0x0000017FBD45E000-memory.dmp

Filesize
120KB

Download
memory/4936-35-0x0000017FBD4C0000-0x0000017FBD536000-memory.dmp

Filesize
472KB

Download
memory/4936-2-0x0000017FBD1A0000-0x0000017FBD1B0000-memory.dmp

Filesize
64KB

Download
memory/4936-104-0x00007FF8637B0000-0x00007FF864271000-memory.dmp

Filesize
10.8MB

Download