umbral | 7d620b8c48e10d1d76c421950d2110b7e45972a0037d81168a90658b31e4cf2d

Analysis

max time kernel
208s
max time network
212s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
09-07-2024 19:59

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General

Target

OptimizedBox-DataSwap2.0.exe
Size

231KB
MD5

cc77383b81a5c1c3e55234691e3dc519
SHA1

2e4af74a0880635706feefde2d6a90a5d77c277c
SHA256

7d620b8c48e10d1d76c421950d2110b7e45972a0037d81168a90658b31e4cf2d
SHA512

573e84b86903e6465f9199c485efa7dcaa04759f0afbfa9f5737ec64123a6ebf2b109a7fa67f1ae63c05fa88cda444f96a11d9dd8e1e5da08b1aa75e056afdd2
SSDEEP

6144:jloZM+rIkd8g+EtXHkv/iD4aphB3tW+xSkt/qqf7mkb8e1mGtAi:BoZtL+EP8aphB3tW+xSkt/qqf3ltZ

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3880-0-0x0000015B70D60000-0x0000015B70DA0000-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
2560	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	OptimizedBox-DataSwap2.0.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
17	discord.com
18	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
3	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2640	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1492	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3880	OptimizedBox-DataSwap2.0.exe
2560	powershell.exe
2560	powershell.exe
956	powershell.exe
956	powershell.exe
4176	powershell.exe
4176	powershell.exe
4436	powershell.exe
4436	powershell.exe
2088	powershell.exe
2088	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3880	OptimizedBox-DataSwap2.0.exe
Token: SeIncreaseQuotaPrivilege	4588	wmic.exe
Token: SeSecurityPrivilege	4588	wmic.exe
Token: SeTakeOwnershipPrivilege	4588	wmic.exe
Token: SeLoadDriverPrivilege	4588	wmic.exe
Token: SeSystemProfilePrivilege	4588	wmic.exe
Token: SeSystemtimePrivilege	4588	wmic.exe
Token: SeProfSingleProcessPrivilege	4588	wmic.exe
Token: SeIncBasePriorityPrivilege	4588	wmic.exe
Token: SeCreatePagefilePrivilege	4588	wmic.exe
Token: SeBackupPrivilege	4588	wmic.exe
Token: SeRestorePrivilege	4588	wmic.exe
Token: SeShutdownPrivilege	4588	wmic.exe
Token: SeDebugPrivilege	4588	wmic.exe
Token: SeSystemEnvironmentPrivilege	4588	wmic.exe
Token: SeRemoteShutdownPrivilege	4588	wmic.exe
Token: SeUndockPrivilege	4588	wmic.exe
Token: SeManageVolumePrivilege	4588	wmic.exe
Token: 33	4588	wmic.exe
Token: 34	4588	wmic.exe
Token: 35	4588	wmic.exe
Token: 36	4588	wmic.exe
Token: SeIncreaseQuotaPrivilege	4588	wmic.exe
Token: SeSecurityPrivilege	4588	wmic.exe
Token: SeTakeOwnershipPrivilege	4588	wmic.exe
Token: SeLoadDriverPrivilege	4588	wmic.exe
Token: SeSystemProfilePrivilege	4588	wmic.exe
Token: SeSystemtimePrivilege	4588	wmic.exe
Token: SeProfSingleProcessPrivilege	4588	wmic.exe
Token: SeIncBasePriorityPrivilege	4588	wmic.exe
Token: SeCreatePagefilePrivilege	4588	wmic.exe
Token: SeBackupPrivilege	4588	wmic.exe
Token: SeRestorePrivilege	4588	wmic.exe
Token: SeShutdownPrivilege	4588	wmic.exe
Token: SeDebugPrivilege	4588	wmic.exe
Token: SeSystemEnvironmentPrivilege	4588	wmic.exe
Token: SeRemoteShutdownPrivilege	4588	wmic.exe
Token: SeUndockPrivilege	4588	wmic.exe
Token: SeManageVolumePrivilege	4588	wmic.exe
Token: 33	4588	wmic.exe
Token: 34	4588	wmic.exe
Token: 35	4588	wmic.exe
Token: 36	4588	wmic.exe
Token: SeDebugPrivilege	2560	powershell.exe
Token: SeDebugPrivilege	956	powershell.exe
Token: SeDebugPrivilege	4176	powershell.exe
Token: SeDebugPrivilege	4436	powershell.exe
Token: SeIncreaseQuotaPrivilege	3560	wmic.exe
Token: SeSecurityPrivilege	3560	wmic.exe
Token: SeTakeOwnershipPrivilege	3560	wmic.exe
Token: SeLoadDriverPrivilege	3560	wmic.exe
Token: SeSystemProfilePrivilege	3560	wmic.exe
Token: SeSystemtimePrivilege	3560	wmic.exe
Token: SeProfSingleProcessPrivilege	3560	wmic.exe
Token: SeIncBasePriorityPrivilege	3560	wmic.exe
Token: SeCreatePagefilePrivilege	3560	wmic.exe
Token: SeBackupPrivilege	3560	wmic.exe
Token: SeRestorePrivilege	3560	wmic.exe
Token: SeShutdownPrivilege	3560	wmic.exe
Token: SeDebugPrivilege	3560	wmic.exe
Token: SeSystemEnvironmentPrivilege	3560	wmic.exe
Token: SeRemoteShutdownPrivilege	3560	wmic.exe
Token: SeUndockPrivilege	3560	wmic.exe
Token: SeManageVolumePrivilege	3560	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3880 wrote to memory of 4588	3880	OptimizedBox-DataSwap2.0.exe	83
PID 3880 wrote to memory of 4588	3880	OptimizedBox-DataSwap2.0.exe	83
PID 3880 wrote to memory of 4500	3880	OptimizedBox-DataSwap2.0.exe	87
PID 3880 wrote to memory of 4500	3880	OptimizedBox-DataSwap2.0.exe	87
PID 3880 wrote to memory of 2560	3880	OptimizedBox-DataSwap2.0.exe	89
PID 3880 wrote to memory of 2560	3880	OptimizedBox-DataSwap2.0.exe	89
PID 3880 wrote to memory of 956	3880	OptimizedBox-DataSwap2.0.exe	91
PID 3880 wrote to memory of 956	3880	OptimizedBox-DataSwap2.0.exe	91
PID 3880 wrote to memory of 4176	3880	OptimizedBox-DataSwap2.0.exe	93
PID 3880 wrote to memory of 4176	3880	OptimizedBox-DataSwap2.0.exe	93
PID 3880 wrote to memory of 4436	3880	OptimizedBox-DataSwap2.0.exe	95
PID 3880 wrote to memory of 4436	3880	OptimizedBox-DataSwap2.0.exe	95
PID 3880 wrote to memory of 3560	3880	OptimizedBox-DataSwap2.0.exe	97
PID 3880 wrote to memory of 3560	3880	OptimizedBox-DataSwap2.0.exe	97
PID 3880 wrote to memory of 3408	3880	OptimizedBox-DataSwap2.0.exe	99
PID 3880 wrote to memory of 3408	3880	OptimizedBox-DataSwap2.0.exe	99
PID 3880 wrote to memory of 3112	3880	OptimizedBox-DataSwap2.0.exe	101
PID 3880 wrote to memory of 3112	3880	OptimizedBox-DataSwap2.0.exe	101
PID 3880 wrote to memory of 2088	3880	OptimizedBox-DataSwap2.0.exe	103
PID 3880 wrote to memory of 2088	3880	OptimizedBox-DataSwap2.0.exe	103
PID 3880 wrote to memory of 2640	3880	OptimizedBox-DataSwap2.0.exe	105
PID 3880 wrote to memory of 2640	3880	OptimizedBox-DataSwap2.0.exe	105
PID 3880 wrote to memory of 3596	3880	OptimizedBox-DataSwap2.0.exe	107
PID 3880 wrote to memory of 3596	3880	OptimizedBox-DataSwap2.0.exe	107
PID 3596 wrote to memory of 1492	3596	cmd.exe	109
PID 3596 wrote to memory of 1492	3596	cmd.exe	109

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4500	attrib.exe

C:\Users\Admin\AppData\Local\Temp\OptimizedBox-DataSwap2.0.exe
"C:\Users\Admin\AppData\Local\Temp\OptimizedBox-DataSwap2.0.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3880
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4588
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\OptimizedBox-DataSwap2.0.exe"
  2⤵
  - Views/modifies file attributes
  PID:4500
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\OptimizedBox-DataSwap2.0.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2560
- 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:956
- 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:4176
- 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:4436
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3560
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3408
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3112
- 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:2088
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2640
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\OptimizedBox-DataSwap2.0.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3596
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:1492

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4592

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\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
6a29e9f9eb72c3bffbb054cd27e3ceea

SHA1
d38f7c2ad68dcf1d24deca9792256ff53d5218b2

SHA256
7a9f831f96b9e4843751dea3ed57ee11d70bb83a5970ddf9d6bd440f4def442c

SHA512
b4826f172c6ac60ad17412a634987c45640b1b8fe03aecba26510ae224685bcd571bc4b131724036e2b502b3a8198fb69414be8c72e46f833f0601a15d313430

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

Filesize
1KB

MD5
548dd08570d121a65e82abb7171cae1c

SHA1
1a1b5084b3a78f3acd0d811cc79dbcac121217ab

SHA256
cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc

SHA512
37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

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

Filesize
1KB

MD5
13733e403543be03f23f5e0383853b70

SHA1
e4c0b0494c84cebe83603d7651a9f6e28770623d

SHA256
917d654879906e6e79bcb1395a592f42de7d1f7051ecc67b62caf798eeb0d97c

SHA512
3ac11bbff12c4409ebbcd86cf994df972d20516b4e16e2dfe709c7c13e5e86be3b2ac46953b59e02707597ff725fb8183a4d2a72ee76984239243e5dba46a965

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lqbksyfx.nns.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2560-17-0x00007FFD72750000-0x00007FFD73211000-memory.dmp

Filesize
10.8MB

Download
memory/2560-14-0x00007FFD72750000-0x00007FFD73211000-memory.dmp

Filesize
10.8MB

Download
memory/2560-15-0x00007FFD72750000-0x00007FFD73211000-memory.dmp

Filesize
10.8MB

Download
memory/2560-13-0x00007FFD72750000-0x00007FFD73211000-memory.dmp

Filesize
10.8MB

Download
memory/2560-12-0x0000020D3BC40000-0x0000020D3BC62000-memory.dmp

Filesize
136KB

Download
memory/3880-33-0x0000015B729E0000-0x0000015B729FE000-memory.dmp

Filesize
120KB

Download
memory/3880-32-0x0000015B735B0000-0x0000015B73600000-memory.dmp

Filesize
320KB

Download
memory/3880-31-0x0000015B73530000-0x0000015B735A6000-memory.dmp

Filesize
472KB

Download
memory/3880-0-0x0000015B70D60000-0x0000015B70DA0000-memory.dmp

Filesize
256KB

Download
memory/3880-2-0x00007FFD72750000-0x00007FFD73211000-memory.dmp

Filesize
10.8MB

Download
memory/3880-69-0x0000015B72A10000-0x0000015B72A1A000-memory.dmp

Filesize
40KB

Download
memory/3880-70-0x0000015B734B0000-0x0000015B734C2000-memory.dmp

Filesize
72KB

Download
memory/3880-1-0x00007FFD72753000-0x00007FFD72755000-memory.dmp

Filesize
8KB

Download
memory/3880-88-0x00007FFD72750000-0x00007FFD73211000-memory.dmp

Filesize
10.8MB

Download