umbral | e6ce3dd93c2d407085ea10bb6f22bd89a34e7fff719e5579ee47f4f2fdaed921

Analysis

max time kernel
91s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
09/02/2024, 21:50

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General

Target
Spoofer.exe
Size 231KB
Sample240209-1pwpyage84
SHA256 e6ce3dd93c2d407085ea10bb6f22bd89a34e7fff719e5579ee47f4f2fdaed921
MD5 c964c96a473bbd29377a62c0d6e1d100
SHA1 879c4eebdfce76f13a2be8209c5b1ce3676152ef
SHA512 36e472d0b7d34a3b9968eb4c540cf839592df4b1147c1063fd0be4b72748cd48c0d8d46ef5cb6949932844951cd2f2dc5de7fdecbc98fc232958fe285813cf95
SSDEEP 6144:xloZM9rIkd8g+EtXHkv/iD4085oBPUon6WvRsY9+N0C8e1mkHi:DoZOL+EP8085oBPUon6WvRsY9eHC
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/2732-0-0x000002796D080000-0x000002796D0C0000-memory.dmp	family_umbral

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Spoofer.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
25	discord.com
26	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
18	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3264	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4904	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4084	powershell.exe
4084	powershell.exe
3628	powershell.exe
3628	powershell.exe
400	powershell.exe
400	powershell.exe
4500	powershell.exe
4500	powershell.exe
5068	powershell.exe
5068	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	Spoofer.exe
Token: SeDebugPrivilege	4084	powershell.exe
Token: SeDebugPrivilege	3628	powershell.exe
Token: SeDebugPrivilege	400	powershell.exe
Token: SeDebugPrivilege	4500	powershell.exe
Token: SeIncreaseQuotaPrivilege	1312	wmic.exe
Token: SeSecurityPrivilege	1312	wmic.exe
Token: SeTakeOwnershipPrivilege	1312	wmic.exe
Token: SeLoadDriverPrivilege	1312	wmic.exe
Token: SeSystemProfilePrivilege	1312	wmic.exe
Token: SeSystemtimePrivilege	1312	wmic.exe
Token: SeProfSingleProcessPrivilege	1312	wmic.exe
Token: SeIncBasePriorityPrivilege	1312	wmic.exe
Token: SeCreatePagefilePrivilege	1312	wmic.exe
Token: SeBackupPrivilege	1312	wmic.exe
Token: SeRestorePrivilege	1312	wmic.exe
Token: SeShutdownPrivilege	1312	wmic.exe
Token: SeDebugPrivilege	1312	wmic.exe
Token: SeSystemEnvironmentPrivilege	1312	wmic.exe
Token: SeRemoteShutdownPrivilege	1312	wmic.exe
Token: SeUndockPrivilege	1312	wmic.exe
Token: SeManageVolumePrivilege	1312	wmic.exe
Token: 33	1312	wmic.exe
Token: 34	1312	wmic.exe
Token: 35	1312	wmic.exe
Token: 36	1312	wmic.exe
Token: SeIncreaseQuotaPrivilege	1312	wmic.exe
Token: SeSecurityPrivilege	1312	wmic.exe
Token: SeTakeOwnershipPrivilege	1312	wmic.exe
Token: SeLoadDriverPrivilege	1312	wmic.exe
Token: SeSystemProfilePrivilege	1312	wmic.exe
Token: SeSystemtimePrivilege	1312	wmic.exe
Token: SeProfSingleProcessPrivilege	1312	wmic.exe
Token: SeIncBasePriorityPrivilege	1312	wmic.exe
Token: SeCreatePagefilePrivilege	1312	wmic.exe
Token: SeBackupPrivilege	1312	wmic.exe
Token: SeRestorePrivilege	1312	wmic.exe
Token: SeShutdownPrivilege	1312	wmic.exe
Token: SeDebugPrivilege	1312	wmic.exe
Token: SeSystemEnvironmentPrivilege	1312	wmic.exe
Token: SeRemoteShutdownPrivilege	1312	wmic.exe
Token: SeUndockPrivilege	1312	wmic.exe
Token: SeManageVolumePrivilege	1312	wmic.exe
Token: 33	1312	wmic.exe
Token: 34	1312	wmic.exe
Token: 35	1312	wmic.exe
Token: 36	1312	wmic.exe
Token: SeIncreaseQuotaPrivilege	4132	wmic.exe
Token: SeSecurityPrivilege	4132	wmic.exe
Token: SeTakeOwnershipPrivilege	4132	wmic.exe
Token: SeLoadDriverPrivilege	4132	wmic.exe
Token: SeSystemProfilePrivilege	4132	wmic.exe
Token: SeSystemtimePrivilege	4132	wmic.exe
Token: SeProfSingleProcessPrivilege	4132	wmic.exe
Token: SeIncBasePriorityPrivilege	4132	wmic.exe
Token: SeCreatePagefilePrivilege	4132	wmic.exe
Token: SeBackupPrivilege	4132	wmic.exe
Token: SeRestorePrivilege	4132	wmic.exe
Token: SeShutdownPrivilege	4132	wmic.exe
Token: SeDebugPrivilege	4132	wmic.exe
Token: SeSystemEnvironmentPrivilege	4132	wmic.exe
Token: SeRemoteShutdownPrivilege	4132	wmic.exe
Token: SeUndockPrivilege	4132	wmic.exe
Token: SeManageVolumePrivilege	4132	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2732 wrote to memory of 3824	2732	Spoofer.exe	85
PID 2732 wrote to memory of 3824	2732	Spoofer.exe	85
PID 2732 wrote to memory of 4084	2732	Spoofer.exe	87
PID 2732 wrote to memory of 4084	2732	Spoofer.exe	87
PID 2732 wrote to memory of 3628	2732	Spoofer.exe	89
PID 2732 wrote to memory of 3628	2732	Spoofer.exe	89
PID 2732 wrote to memory of 400	2732	Spoofer.exe	91
PID 2732 wrote to memory of 400	2732	Spoofer.exe	91
PID 2732 wrote to memory of 4500	2732	Spoofer.exe	93
PID 2732 wrote to memory of 4500	2732	Spoofer.exe	93
PID 2732 wrote to memory of 1312	2732	Spoofer.exe	96
PID 2732 wrote to memory of 1312	2732	Spoofer.exe	96
PID 2732 wrote to memory of 4132	2732	Spoofer.exe	98
PID 2732 wrote to memory of 4132	2732	Spoofer.exe	98
PID 2732 wrote to memory of 3544	2732	Spoofer.exe	100
PID 2732 wrote to memory of 3544	2732	Spoofer.exe	100
PID 2732 wrote to memory of 5068	2732	Spoofer.exe	103
PID 2732 wrote to memory of 5068	2732	Spoofer.exe	103
PID 2732 wrote to memory of 3264	2732	Spoofer.exe	105
PID 2732 wrote to memory of 3264	2732	Spoofer.exe	105
PID 2732 wrote to memory of 3032	2732	Spoofer.exe	110
PID 2732 wrote to memory of 3032	2732	Spoofer.exe	110
PID 3032 wrote to memory of 4904	3032	cmd.exe	111
PID 3032 wrote to memory of 4904	3032	cmd.exe	111

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3824	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Spoofer.exe
"C:\Users\Admin\AppData\Local\Temp\Spoofer.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Spoofer.exe"
  2⤵
  - Views/modifies file attributes
  PID:3824
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Spoofer.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4084
- 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:3628
- 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:400
- 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:4500
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1312
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4132
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3544
- 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:5068
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3264
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Spoofer.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:4904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 0c4ed7f771336125f93ed80646d8de8dce62652e8ac6f68e204dcfd1f521cec6
MD5 8db9c39f7c3d1b4a53b68c2d16e7c044
SHA1 e719df2fe37682d5ebd4b1e4a1ea45f502dc716b
SHA512 3a919a6cd6b32d88277941fda9baf84c9c75bbafc5d4fde89d45b6688547e3042bfeba94845be3aae7b2a00ad3d24c7561b48f335292ec47485fb16f6a8fb7f0
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c
MD5 6d42b6da621e8df5674e26b799c8e2aa
SHA1 ab3ce1327ea1eeedb987ec823d5e0cb146bafa48
SHA512 53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 948B
SHA256 943f39c8d418b82f2620e5712d77b0f2c74e8bcfed7757bf6bfe51cd7e0f54ad
MD5 ca9486e86c2d150143b791c6d79e4cb9
SHA1 10bf74986105e10be0b3f7ecf7e421142457cadb
SHA512 ecc4d2ca449b604fc6fedeac2f1d41226dc1cc38282cde57a89d87d7226e610fc21e4dd2eb172b5066cd9b57ae78eee681df941012924121462054e72c026fbc
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 533c8470b41084e40c5660569ebbdb7496520d449629a235e8053e84025f348a
MD5 88be3bc8a7f90e3953298c0fdbec4d72
SHA1 f4969784ad421cc80ef45608727aacd0f6bf2e4b
SHA512 4fce64e2dacddbc03314048fef1ce356ee2647c14733da121c23c65507eeb8d721d6b690ad5463319b364dc4fa95904ad6ab096907f32918e3406ef438a6ef7c
MD5 SHA1 SHA512

Submit Download

__PSScriptPolicyTest_30zraiqt.frv.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_30zraiqt.frv.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/400-68-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/400-66-0x000001F3C4A30000-0x000001F3C4A40000-memory.dmp

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memory/400-43-0x000001F3C4A30000-0x000001F3C4A40000-memory.dmp

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memory/400-42-0x000001F3C4A30000-0x000001F3C4A40000-memory.dmp

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memory/400-41-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/2732-82-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/2732-2-0x000002796EC80000-0x000002796EC90000-memory.dmp

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memory/2732-112-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/2732-111-0x000002796F8D0000-0x000002796FA79000-memory.dmp

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memory/2732-103-0x000002796EC80000-0x000002796EC90000-memory.dmp

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memory/2732-38-0x000002796F800000-0x000002796F876000-memory.dmp

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memory/2732-39-0x000002796F880000-0x000002796F8D0000-memory.dmp

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memory/2732-40-0x000002796EE20000-0x000002796EE3E000-memory.dmp

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memory/2732-1-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/2732-88-0x000002796F7C0000-0x000002796F7D2000-memory.dmp

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memory/2732-87-0x000002796EE60000-0x000002796EE6A000-memory.dmp

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memory/2732-0-0x000002796D080000-0x000002796D0C0000-memory.dmp

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memory/3628-20-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/3628-22-0x0000021BCD6B0000-0x0000021BCD6C0000-memory.dmp

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memory/3628-21-0x0000021BCD6B0000-0x0000021BCD6C0000-memory.dmp

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memory/3628-33-0x0000021BCD6B0000-0x0000021BCD6C0000-memory.dmp

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memory/3628-35-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/4084-8-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/4084-11-0x0000015E5E100000-0x0000015E5E110000-memory.dmp

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memory/4084-10-0x0000015E5E100000-0x0000015E5E110000-memory.dmp

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memory/4084-18-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/4084-9-0x0000015E45B50000-0x0000015E45B72000-memory.dmp

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memory/4500-70-0x000002695E510000-0x000002695E520000-memory.dmp

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memory/4500-85-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/4500-83-0x000002695E510000-0x000002695E520000-memory.dmp

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memory/4500-69-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/4500-71-0x000002695E510000-0x000002695E520000-memory.dmp

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memory/5068-102-0x000002143C170000-0x000002143C180000-memory.dmp

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memory/5068-106-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/5068-101-0x00007FF8B74D0000-0x00007FF8B7F91000-memory.dmp

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memory/5068-104-0x000002143C170000-0x000002143C180000-memory.dmp

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