umbral | e6ce3dd93c2d407085ea10bb6f22bd89a34e7fff719e5579ee47f4f2fdaed921

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
06/02/2024, 09:40

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General

Target

Spoofer.exe
Size

231KB
MD5

c964c96a473bbd29377a62c0d6e1d100
SHA1

879c4eebdfce76f13a2be8209c5b1ce3676152ef
SHA256

e6ce3dd93c2d407085ea10bb6f22bd89a34e7fff719e5579ee47f4f2fdaed921
SHA512

36e472d0b7d34a3b9968eb4c540cf839592df4b1147c1063fd0be4b72748cd48c0d8d46ef5cb6949932844951cd2f2dc5de7fdecbc98fc232958fe285813cf95
SSDEEP

6144:xloZM9rIkd8g+EtXHkv/iD4085oBPUon6WvRsY9+N0C8e1mkHi:DoZOL+EP8085oBPUon6WvRsY9eHC

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000D20000-0x0000000000D60000-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

Deletes itself 1 IoCs

pid	Process
836	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
15	discord.com
16	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
13	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1456	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
648	PING.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2720	powershell.exe
2224	powershell.exe
2528	powershell.exe
1664	powershell.exe
1964	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1712	Spoofer.exe
Token: SeDebugPrivilege	2720	powershell.exe
Token: SeDebugPrivilege	2224	powershell.exe
Token: SeDebugPrivilege	2528	powershell.exe
Token: SeDebugPrivilege	1664	powershell.exe
Token: SeIncreaseQuotaPrivilege	2824	wmic.exe
Token: SeSecurityPrivilege	2824	wmic.exe
Token: SeTakeOwnershipPrivilege	2824	wmic.exe
Token: SeLoadDriverPrivilege	2824	wmic.exe
Token: SeSystemProfilePrivilege	2824	wmic.exe
Token: SeSystemtimePrivilege	2824	wmic.exe
Token: SeProfSingleProcessPrivilege	2824	wmic.exe
Token: SeIncBasePriorityPrivilege	2824	wmic.exe
Token: SeCreatePagefilePrivilege	2824	wmic.exe
Token: SeBackupPrivilege	2824	wmic.exe
Token: SeRestorePrivilege	2824	wmic.exe
Token: SeShutdownPrivilege	2824	wmic.exe
Token: SeDebugPrivilege	2824	wmic.exe
Token: SeSystemEnvironmentPrivilege	2824	wmic.exe
Token: SeRemoteShutdownPrivilege	2824	wmic.exe
Token: SeUndockPrivilege	2824	wmic.exe
Token: SeManageVolumePrivilege	2824	wmic.exe
Token: 33	2824	wmic.exe
Token: 34	2824	wmic.exe
Token: 35	2824	wmic.exe
Token: SeIncreaseQuotaPrivilege	2824	wmic.exe
Token: SeSecurityPrivilege	2824	wmic.exe
Token: SeTakeOwnershipPrivilege	2824	wmic.exe
Token: SeLoadDriverPrivilege	2824	wmic.exe
Token: SeSystemProfilePrivilege	2824	wmic.exe
Token: SeSystemtimePrivilege	2824	wmic.exe
Token: SeProfSingleProcessPrivilege	2824	wmic.exe
Token: SeIncBasePriorityPrivilege	2824	wmic.exe
Token: SeCreatePagefilePrivilege	2824	wmic.exe
Token: SeBackupPrivilege	2824	wmic.exe
Token: SeRestorePrivilege	2824	wmic.exe
Token: SeShutdownPrivilege	2824	wmic.exe
Token: SeDebugPrivilege	2824	wmic.exe
Token: SeSystemEnvironmentPrivilege	2824	wmic.exe
Token: SeRemoteShutdownPrivilege	2824	wmic.exe
Token: SeUndockPrivilege	2824	wmic.exe
Token: SeManageVolumePrivilege	2824	wmic.exe
Token: 33	2824	wmic.exe
Token: 34	2824	wmic.exe
Token: 35	2824	wmic.exe
Token: SeIncreaseQuotaPrivilege	3000	wmic.exe
Token: SeSecurityPrivilege	3000	wmic.exe
Token: SeTakeOwnershipPrivilege	3000	wmic.exe
Token: SeLoadDriverPrivilege	3000	wmic.exe
Token: SeSystemProfilePrivilege	3000	wmic.exe
Token: SeSystemtimePrivilege	3000	wmic.exe
Token: SeProfSingleProcessPrivilege	3000	wmic.exe
Token: SeIncBasePriorityPrivilege	3000	wmic.exe
Token: SeCreatePagefilePrivilege	3000	wmic.exe
Token: SeBackupPrivilege	3000	wmic.exe
Token: SeRestorePrivilege	3000	wmic.exe
Token: SeShutdownPrivilege	3000	wmic.exe
Token: SeDebugPrivilege	3000	wmic.exe
Token: SeSystemEnvironmentPrivilege	3000	wmic.exe
Token: SeRemoteShutdownPrivilege	3000	wmic.exe
Token: SeUndockPrivilege	3000	wmic.exe
Token: SeManageVolumePrivilege	3000	wmic.exe
Token: 33	3000	wmic.exe
Token: 34	3000	wmic.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 2628	1712	Spoofer.exe	29
PID 1712 wrote to memory of 2628	1712	Spoofer.exe	29
PID 1712 wrote to memory of 2628	1712	Spoofer.exe	29
PID 1712 wrote to memory of 2720	1712	Spoofer.exe	31
PID 1712 wrote to memory of 2720	1712	Spoofer.exe	31
PID 1712 wrote to memory of 2720	1712	Spoofer.exe	31
PID 1712 wrote to memory of 2224	1712	Spoofer.exe	33
PID 1712 wrote to memory of 2224	1712	Spoofer.exe	33
PID 1712 wrote to memory of 2224	1712	Spoofer.exe	33
PID 1712 wrote to memory of 2528	1712	Spoofer.exe	35
PID 1712 wrote to memory of 2528	1712	Spoofer.exe	35
PID 1712 wrote to memory of 2528	1712	Spoofer.exe	35
PID 1712 wrote to memory of 1664	1712	Spoofer.exe	37
PID 1712 wrote to memory of 1664	1712	Spoofer.exe	37
PID 1712 wrote to memory of 1664	1712	Spoofer.exe	37
PID 1712 wrote to memory of 2824	1712	Spoofer.exe	40
PID 1712 wrote to memory of 2824	1712	Spoofer.exe	40
PID 1712 wrote to memory of 2824	1712	Spoofer.exe	40
PID 1712 wrote to memory of 3000	1712	Spoofer.exe	42
PID 1712 wrote to memory of 3000	1712	Spoofer.exe	42
PID 1712 wrote to memory of 3000	1712	Spoofer.exe	42
PID 1712 wrote to memory of 2268	1712	Spoofer.exe	46
PID 1712 wrote to memory of 2268	1712	Spoofer.exe	46
PID 1712 wrote to memory of 2268	1712	Spoofer.exe	46
PID 1712 wrote to memory of 1964	1712	Spoofer.exe	45
PID 1712 wrote to memory of 1964	1712	Spoofer.exe	45
PID 1712 wrote to memory of 1964	1712	Spoofer.exe	45
PID 1712 wrote to memory of 1456	1712	Spoofer.exe	48
PID 1712 wrote to memory of 1456	1712	Spoofer.exe	48
PID 1712 wrote to memory of 1456	1712	Spoofer.exe	48
PID 1712 wrote to memory of 836	1712	Spoofer.exe	51
PID 1712 wrote to memory of 836	1712	Spoofer.exe	51
PID 1712 wrote to memory of 836	1712	Spoofer.exe	51
PID 836 wrote to memory of 648	836	cmd.exe	49
PID 836 wrote to memory of 648	836	cmd.exe	49
PID 836 wrote to memory of 648	836	cmd.exe	49

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2628	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:1712
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Spoofer.exe"
  2⤵
  - Views/modifies file attributes
  PID:2628
- 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:2720
- 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:2224
- 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:2528
- 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:1664
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2824
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3000
- 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:1964
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2268
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1456
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Spoofer.exe" && pause
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:836

C:\Windows\system32\PING.EXE
ping localhost
1⤵
- Runs ping.exe
PID:648

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

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\52ICUN7JW5SQARYY7ZAE.temp

Filesize
7KB

MD5
bbcfa3ab3a661e5441dd5c4c7897ea6c

SHA1
013e55ccf5642ae2dc008cf75e98b0f9f237c740

SHA256
a242d741e9c741616727e0a01216ee7832df5643f0d807e171f8a1c80f5298b1

SHA512
ae791b4dd6d3cb9339f03aeaaf983e22322161471f9ee496cbdcfea277dd2b3cf0a4d2a806debf57452bf07da69b12b95274725f3ff657f6248d4931282234bf

Download Submit
memory/1664-70-0x000007FEED940000-0x000007FEEE2DD000-memory.dmp

Filesize
9.6MB

Download
memory/1664-68-0x000007FEED940000-0x000007FEEE2DD000-memory.dmp

Filesize
9.6MB

Download
memory/1664-69-0x0000000002A00000-0x0000000002A80000-memory.dmp

Filesize
512KB

Download
memory/1664-71-0x0000000002A04000-0x0000000002A07000-memory.dmp

Filesize
12KB

Download
memory/1664-72-0x0000000002A0B000-0x0000000002A72000-memory.dmp

Filesize
412KB

Download
memory/1664-74-0x000007FEED940000-0x000007FEEE2DD000-memory.dmp

Filesize
9.6MB

Download
memory/1712-0-0x0000000000D20000-0x0000000000D60000-memory.dmp

Filesize
256KB

Download
memory/1712-2-0x000000001A680000-0x000000001A700000-memory.dmp

Filesize
512KB

Download
memory/1712-1-0x000007FEF5B20000-0x000007FEF650C000-memory.dmp

Filesize
9.9MB

Download
memory/1712-73-0x000007FEF5B20000-0x000007FEF650C000-memory.dmp

Filesize
9.9MB

Download
memory/1712-94-0x000007FEF5B20000-0x000007FEF650C000-memory.dmp

Filesize
9.9MB

Download
memory/1964-90-0x000007FEEDF00000-0x000007FEEE89D000-memory.dmp

Filesize
9.6MB

Download
memory/1964-84-0x000007FEEDF00000-0x000007FEEE89D000-memory.dmp

Filesize
9.6MB

Download
memory/1964-85-0x0000000002A60000-0x0000000002AE0000-memory.dmp

Filesize
512KB

Download
memory/1964-83-0x000000001B600000-0x000000001B8E2000-memory.dmp

Filesize
2.9MB

Download
memory/1964-89-0x0000000002A60000-0x0000000002AE0000-memory.dmp

Filesize
512KB

Download
memory/1964-88-0x0000000002A60000-0x0000000002AE0000-memory.dmp

Filesize
512KB

Download
memory/1964-87-0x0000000002A60000-0x0000000002AE0000-memory.dmp

Filesize
512KB

Download
memory/1964-86-0x000007FEEDF00000-0x000007FEEE89D000-memory.dmp

Filesize
9.6MB

Download
memory/2224-37-0x0000000002CE0000-0x0000000002D60000-memory.dmp

Filesize
512KB

Download
memory/2224-41-0x0000000002CE0000-0x0000000002D60000-memory.dmp

Filesize
512KB

Download
memory/2224-35-0x000007FEEDB20000-0x000007FEEE4BD000-memory.dmp

Filesize
9.6MB

Download
memory/2224-38-0x000007FEEDB20000-0x000007FEEE4BD000-memory.dmp

Filesize
9.6MB

Download
memory/2224-40-0x0000000002CE0000-0x0000000002D60000-memory.dmp

Filesize
512KB

Download
memory/2224-39-0x0000000002CE0000-0x0000000002D60000-memory.dmp

Filesize
512KB

Download
memory/2224-36-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/2224-34-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

Filesize
2.9MB

Download
memory/2224-42-0x000007FEEDB20000-0x000007FEEE4BD000-memory.dmp

Filesize
9.6MB

Download
memory/2528-56-0x000007FEEE2E0000-0x000007FEEEC7D000-memory.dmp

Filesize
9.6MB

Download
memory/2528-61-0x000007FEEE2E0000-0x000007FEEEC7D000-memory.dmp

Filesize
9.6MB

Download
memory/2528-58-0x000007FEEE2E0000-0x000007FEEEC7D000-memory.dmp

Filesize
9.6MB

Download
memory/2528-59-0x0000000002D10000-0x0000000002D90000-memory.dmp

Filesize
512KB

Download
memory/2528-60-0x0000000002D10000-0x0000000002D90000-memory.dmp

Filesize
512KB

Download
memory/2528-57-0x0000000002D10000-0x0000000002D90000-memory.dmp

Filesize
512KB

Download
memory/2720-28-0x000007FEEE4C0000-0x000007FEEEE5D000-memory.dmp

Filesize
9.6MB

Download
memory/2720-21-0x000000001B860000-0x000000001BB42000-memory.dmp

Filesize
2.9MB

Download
memory/2720-24-0x0000000002E90000-0x0000000002F10000-memory.dmp

Filesize
512KB

Download
memory/2720-25-0x000007FEEE4C0000-0x000007FEEEE5D000-memory.dmp

Filesize
9.6MB

Download
memory/2720-27-0x0000000002E90000-0x0000000002F10000-memory.dmp

Filesize
512KB

Download
memory/2720-26-0x0000000002E90000-0x0000000002F10000-memory.dmp

Filesize
512KB

Download
memory/2720-23-0x000007FEEE4C0000-0x000007FEEEE5D000-memory.dmp

Filesize
9.6MB

Download
memory/2720-22-0x0000000001D20000-0x0000000001D28000-memory.dmp

Filesize
32KB

Download