umbral | 11e30517a0f8838c940b35303a73b7b613c87e7aa9d8646c2e1877fae9450099

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
11-05-2024 21:02

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General

Target

P o o k i e s L o a d e r.exe
Size

232KB
MD5

bc4368699114c45e9d4f751837467fdb
SHA1

5f64e94c27dd0240c2604c6f9d8a746b5ce85e1a
SHA256

11e30517a0f8838c940b35303a73b7b613c87e7aa9d8646c2e1877fae9450099
SHA512

236879a4518e0ce1e1dade295933c78930171c0865cb9b539551fb6d1f1bdc68940b7e4ef6bc29966962eb0be2a13950722959f94d687c33293b7d4058f6e2b6
SSDEEP

6144:mloZM+rIkd8g+EtXHkv/iD41oIOmkrHM09YW3X2Hgb8e1m9+ik:QoZtL+EP81oIOmkrHM09YW3X2o+zk

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/3016-1-0x0000000000850000-0x0000000000890000-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
2596	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	P o o k i e s L o a d e r.exe

Deletes itself 1 IoCs

pid	Process
1920	cmd.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
7	discord.com
8	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
4	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2956	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2224	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3016	P o o k i e s L o a d e r.exe
2596	powershell.exe
2756	powershell.exe
2152	powershell.exe
2836	powershell.exe
2032	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3016	P o o k i e s L o a d e r.exe
Token: SeIncreaseQuotaPrivilege	2624	wmic.exe
Token: SeSecurityPrivilege	2624	wmic.exe
Token: SeTakeOwnershipPrivilege	2624	wmic.exe
Token: SeLoadDriverPrivilege	2624	wmic.exe
Token: SeSystemProfilePrivilege	2624	wmic.exe
Token: SeSystemtimePrivilege	2624	wmic.exe
Token: SeProfSingleProcessPrivilege	2624	wmic.exe
Token: SeIncBasePriorityPrivilege	2624	wmic.exe
Token: SeCreatePagefilePrivilege	2624	wmic.exe
Token: SeBackupPrivilege	2624	wmic.exe
Token: SeRestorePrivilege	2624	wmic.exe
Token: SeShutdownPrivilege	2624	wmic.exe
Token: SeDebugPrivilege	2624	wmic.exe
Token: SeSystemEnvironmentPrivilege	2624	wmic.exe
Token: SeRemoteShutdownPrivilege	2624	wmic.exe
Token: SeUndockPrivilege	2624	wmic.exe
Token: SeManageVolumePrivilege	2624	wmic.exe
Token: 33	2624	wmic.exe
Token: 34	2624	wmic.exe
Token: 35	2624	wmic.exe
Token: SeIncreaseQuotaPrivilege	2624	wmic.exe
Token: SeSecurityPrivilege	2624	wmic.exe
Token: SeTakeOwnershipPrivilege	2624	wmic.exe
Token: SeLoadDriverPrivilege	2624	wmic.exe
Token: SeSystemProfilePrivilege	2624	wmic.exe
Token: SeSystemtimePrivilege	2624	wmic.exe
Token: SeProfSingleProcessPrivilege	2624	wmic.exe
Token: SeIncBasePriorityPrivilege	2624	wmic.exe
Token: SeCreatePagefilePrivilege	2624	wmic.exe
Token: SeBackupPrivilege	2624	wmic.exe
Token: SeRestorePrivilege	2624	wmic.exe
Token: SeShutdownPrivilege	2624	wmic.exe
Token: SeDebugPrivilege	2624	wmic.exe
Token: SeSystemEnvironmentPrivilege	2624	wmic.exe
Token: SeRemoteShutdownPrivilege	2624	wmic.exe
Token: SeUndockPrivilege	2624	wmic.exe
Token: SeManageVolumePrivilege	2624	wmic.exe
Token: 33	2624	wmic.exe
Token: 34	2624	wmic.exe
Token: 35	2624	wmic.exe
Token: SeDebugPrivilege	2596	powershell.exe
Token: SeDebugPrivilege	2756	powershell.exe
Token: SeDebugPrivilege	2152	powershell.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeIncreaseQuotaPrivilege	2136	wmic.exe
Token: SeSecurityPrivilege	2136	wmic.exe
Token: SeTakeOwnershipPrivilege	2136	wmic.exe
Token: SeLoadDriverPrivilege	2136	wmic.exe
Token: SeSystemProfilePrivilege	2136	wmic.exe
Token: SeSystemtimePrivilege	2136	wmic.exe
Token: SeProfSingleProcessPrivilege	2136	wmic.exe
Token: SeIncBasePriorityPrivilege	2136	wmic.exe
Token: SeCreatePagefilePrivilege	2136	wmic.exe
Token: SeBackupPrivilege	2136	wmic.exe
Token: SeRestorePrivilege	2136	wmic.exe
Token: SeShutdownPrivilege	2136	wmic.exe
Token: SeDebugPrivilege	2136	wmic.exe
Token: SeSystemEnvironmentPrivilege	2136	wmic.exe
Token: SeRemoteShutdownPrivilege	2136	wmic.exe
Token: SeUndockPrivilege	2136	wmic.exe
Token: SeManageVolumePrivilege	2136	wmic.exe
Token: 33	2136	wmic.exe
Token: 34	2136	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2624	3016	P o o k i e s L o a d e r.exe	28
PID 3016 wrote to memory of 2624	3016	P o o k i e s L o a d e r.exe	28
PID 3016 wrote to memory of 2624	3016	P o o k i e s L o a d e r.exe	28
PID 3016 wrote to memory of 2000	3016	P o o k i e s L o a d e r.exe	31
PID 3016 wrote to memory of 2000	3016	P o o k i e s L o a d e r.exe	31
PID 3016 wrote to memory of 2000	3016	P o o k i e s L o a d e r.exe	31
PID 3016 wrote to memory of 2596	3016	P o o k i e s L o a d e r.exe	33
PID 3016 wrote to memory of 2596	3016	P o o k i e s L o a d e r.exe	33
PID 3016 wrote to memory of 2596	3016	P o o k i e s L o a d e r.exe	33
PID 3016 wrote to memory of 2756	3016	P o o k i e s L o a d e r.exe	35
PID 3016 wrote to memory of 2756	3016	P o o k i e s L o a d e r.exe	35
PID 3016 wrote to memory of 2756	3016	P o o k i e s L o a d e r.exe	35
PID 3016 wrote to memory of 2152	3016	P o o k i e s L o a d e r.exe	37
PID 3016 wrote to memory of 2152	3016	P o o k i e s L o a d e r.exe	37
PID 3016 wrote to memory of 2152	3016	P o o k i e s L o a d e r.exe	37
PID 3016 wrote to memory of 2836	3016	P o o k i e s L o a d e r.exe	39
PID 3016 wrote to memory of 2836	3016	P o o k i e s L o a d e r.exe	39
PID 3016 wrote to memory of 2836	3016	P o o k i e s L o a d e r.exe	39
PID 3016 wrote to memory of 2136	3016	P o o k i e s L o a d e r.exe	41
PID 3016 wrote to memory of 2136	3016	P o o k i e s L o a d e r.exe	41
PID 3016 wrote to memory of 2136	3016	P o o k i e s L o a d e r.exe	41
PID 3016 wrote to memory of 1316	3016	P o o k i e s L o a d e r.exe	43
PID 3016 wrote to memory of 1316	3016	P o o k i e s L o a d e r.exe	43
PID 3016 wrote to memory of 1316	3016	P o o k i e s L o a d e r.exe	43
PID 3016 wrote to memory of 1648	3016	P o o k i e s L o a d e r.exe	45
PID 3016 wrote to memory of 1648	3016	P o o k i e s L o a d e r.exe	45
PID 3016 wrote to memory of 1648	3016	P o o k i e s L o a d e r.exe	45
PID 3016 wrote to memory of 2032	3016	P o o k i e s L o a d e r.exe	47
PID 3016 wrote to memory of 2032	3016	P o o k i e s L o a d e r.exe	47
PID 3016 wrote to memory of 2032	3016	P o o k i e s L o a d e r.exe	47
PID 3016 wrote to memory of 2956	3016	P o o k i e s L o a d e r.exe	49
PID 3016 wrote to memory of 2956	3016	P o o k i e s L o a d e r.exe	49
PID 3016 wrote to memory of 2956	3016	P o o k i e s L o a d e r.exe	49
PID 3016 wrote to memory of 1920	3016	P o o k i e s L o a d e r.exe	51
PID 3016 wrote to memory of 1920	3016	P o o k i e s L o a d e r.exe	51
PID 3016 wrote to memory of 1920	3016	P o o k i e s L o a d e r.exe	51
PID 1920 wrote to memory of 2224	1920	cmd.exe	53
PID 1920 wrote to memory of 2224	1920	cmd.exe	53
PID 1920 wrote to memory of 2224	1920	cmd.exe	53

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2000	attrib.exe

C:\Users\Admin\AppData\Local\Temp\P o o k i e s L o a d e r.exe
"C:\Users\Admin\AppData\Local\Temp\P o o k i e s L o a d e r.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2624
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\P o o k i e s L o a d e r.exe"
  2⤵
  - Views/modifies file attributes
  PID:2000
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\P o o k i e s L o a d e r.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2596
- 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:2756
- 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:2152
- 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:2836
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2136
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1316
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1648
- 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:2032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2956
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\P o o k i e s L o a d e r.exe" && pause
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:2224

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

Remote System Discovery

T1018

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
6696616b8467d5851352af082020f09f

SHA1
6bce0147215ce41a33718d2f6e914521ebbb89f0

SHA256
9e75d8e4165787cd1c86d8c536a572e1587308a1c833d77320d05b9d5d904005

SHA512
12196d76f91305c6716c30b2acbf9d5b61db171af989c5860d0eabfa99c4d2c08de96c6795d770051e420b2db97499635ab666f890af24d75d3e309f5cc4e36c

Download Submit
memory/2032-42-0x000000001B590000-0x000000001B872000-memory.dmp

Filesize
2.9MB

Download
memory/2032-43-0x00000000028E0000-0x00000000028E8000-memory.dmp

Filesize
32KB

Download
memory/2596-7-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2596-8-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download
memory/2756-14-0x000000001B5A0000-0x000000001B882000-memory.dmp

Filesize
2.9MB

Download
memory/2756-15-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/3016-0-0x000007FEF58D3000-0x000007FEF58D4000-memory.dmp

Filesize
4KB

Download
memory/3016-1-0x0000000000850000-0x0000000000890000-memory.dmp

Filesize
256KB

Download
memory/3016-2-0x000007FEF58D0000-0x000007FEF62BC000-memory.dmp

Filesize
9.9MB

Download
memory/3016-47-0x000007FEF58D0000-0x000007FEF62BC000-memory.dmp

Filesize
9.9MB

Download