umbral | 25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-06-2024 11:27

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General

Target

25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe
Size

235KB
MD5

32099bdcf2a8c75821bc048193d3b1f5
SHA1

3a28da976bdb4f301dc94afcd0cf2ed60e0c0065
SHA256

25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19
SHA512

e13e0c78cff7e9603c2cee4c720d5680c3ddbd0a21303dcd67733c06f284f7657cdfd10544e6cab470f4d92129a5e8c98684cb518b204ffcfba439249bcaa18c
SSDEEP

6144:TloZM+rIkd8g+EtXHkv/iD4agl0LxCqVYQhTuOLKDb8e1moiLiP:RoZtL+EP8agl0LxCqVYQhTuOLM3J

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/1004-1-0x00000281F4A80000-0x00000281F4AC0000-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
3552	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.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
22	discord.com
23	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
8	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3116	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2112	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe
3552	powershell.exe
3552	powershell.exe
1924	powershell.exe
1924	powershell.exe
4624	powershell.exe
4624	powershell.exe
2704	powershell.exe
2704	powershell.exe
2436	powershell.exe
2436	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe
Token: SeIncreaseQuotaPrivilege	1772	wmic.exe
Token: SeSecurityPrivilege	1772	wmic.exe
Token: SeTakeOwnershipPrivilege	1772	wmic.exe
Token: SeLoadDriverPrivilege	1772	wmic.exe
Token: SeSystemProfilePrivilege	1772	wmic.exe
Token: SeSystemtimePrivilege	1772	wmic.exe
Token: SeProfSingleProcessPrivilege	1772	wmic.exe
Token: SeIncBasePriorityPrivilege	1772	wmic.exe
Token: SeCreatePagefilePrivilege	1772	wmic.exe
Token: SeBackupPrivilege	1772	wmic.exe
Token: SeRestorePrivilege	1772	wmic.exe
Token: SeShutdownPrivilege	1772	wmic.exe
Token: SeDebugPrivilege	1772	wmic.exe
Token: SeSystemEnvironmentPrivilege	1772	wmic.exe
Token: SeRemoteShutdownPrivilege	1772	wmic.exe
Token: SeUndockPrivilege	1772	wmic.exe
Token: SeManageVolumePrivilege	1772	wmic.exe
Token: 33	1772	wmic.exe
Token: 34	1772	wmic.exe
Token: 35	1772	wmic.exe
Token: 36	1772	wmic.exe
Token: SeIncreaseQuotaPrivilege	1772	wmic.exe
Token: SeSecurityPrivilege	1772	wmic.exe
Token: SeTakeOwnershipPrivilege	1772	wmic.exe
Token: SeLoadDriverPrivilege	1772	wmic.exe
Token: SeSystemProfilePrivilege	1772	wmic.exe
Token: SeSystemtimePrivilege	1772	wmic.exe
Token: SeProfSingleProcessPrivilege	1772	wmic.exe
Token: SeIncBasePriorityPrivilege	1772	wmic.exe
Token: SeCreatePagefilePrivilege	1772	wmic.exe
Token: SeBackupPrivilege	1772	wmic.exe
Token: SeRestorePrivilege	1772	wmic.exe
Token: SeShutdownPrivilege	1772	wmic.exe
Token: SeDebugPrivilege	1772	wmic.exe
Token: SeSystemEnvironmentPrivilege	1772	wmic.exe
Token: SeRemoteShutdownPrivilege	1772	wmic.exe
Token: SeUndockPrivilege	1772	wmic.exe
Token: SeManageVolumePrivilege	1772	wmic.exe
Token: 33	1772	wmic.exe
Token: 34	1772	wmic.exe
Token: 35	1772	wmic.exe
Token: 36	1772	wmic.exe
Token: SeDebugPrivilege	3552	powershell.exe
Token: SeDebugPrivilege	1924	powershell.exe
Token: SeDebugPrivilege	4624	powershell.exe
Token: SeDebugPrivilege	2704	powershell.exe
Token: SeIncreaseQuotaPrivilege	3528	wmic.exe
Token: SeSecurityPrivilege	3528	wmic.exe
Token: SeTakeOwnershipPrivilege	3528	wmic.exe
Token: SeLoadDriverPrivilege	3528	wmic.exe
Token: SeSystemProfilePrivilege	3528	wmic.exe
Token: SeSystemtimePrivilege	3528	wmic.exe
Token: SeProfSingleProcessPrivilege	3528	wmic.exe
Token: SeIncBasePriorityPrivilege	3528	wmic.exe
Token: SeCreatePagefilePrivilege	3528	wmic.exe
Token: SeBackupPrivilege	3528	wmic.exe
Token: SeRestorePrivilege	3528	wmic.exe
Token: SeShutdownPrivilege	3528	wmic.exe
Token: SeDebugPrivilege	3528	wmic.exe
Token: SeSystemEnvironmentPrivilege	3528	wmic.exe
Token: SeRemoteShutdownPrivilege	3528	wmic.exe
Token: SeUndockPrivilege	3528	wmic.exe
Token: SeManageVolumePrivilege	3528	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1004 wrote to memory of 1772	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	81
PID 1004 wrote to memory of 1772	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	81
PID 1004 wrote to memory of 1240	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	84
PID 1004 wrote to memory of 1240	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	84
PID 1004 wrote to memory of 3552	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	86
PID 1004 wrote to memory of 3552	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	86
PID 1004 wrote to memory of 1924	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	88
PID 1004 wrote to memory of 1924	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	88
PID 1004 wrote to memory of 4624	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	90
PID 1004 wrote to memory of 4624	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	90
PID 1004 wrote to memory of 2704	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	94
PID 1004 wrote to memory of 2704	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	94
PID 1004 wrote to memory of 3528	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	97
PID 1004 wrote to memory of 3528	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	97
PID 1004 wrote to memory of 3000	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	99
PID 1004 wrote to memory of 3000	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	99
PID 1004 wrote to memory of 3068	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	101
PID 1004 wrote to memory of 3068	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	101
PID 1004 wrote to memory of 2436	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	103
PID 1004 wrote to memory of 2436	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	103
PID 1004 wrote to memory of 3116	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	105
PID 1004 wrote to memory of 3116	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	105
PID 1004 wrote to memory of 2980	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	107
PID 1004 wrote to memory of 2980	1004	25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe	107
PID 2980 wrote to memory of 2112	2980	cmd.exe	109
PID 2980 wrote to memory of 2112	2980	cmd.exe	109

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1240	attrib.exe

C:\Users\Admin\AppData\Local\Temp\25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe
"C:\Users\Admin\AppData\Local\Temp\25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1004
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1772
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe"
  2⤵
  - Views/modifies file attributes
  PID:1240
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3552
- 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:1924
- 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:4624
- 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:2704
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3528
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3000
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3068
- 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:2436
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3116
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\25c02277f2a8d87c337a7ed145b3aebe37df66811b7fa9f158dfb09af777fd19.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2980
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:2112

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\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
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
74a6b79d36b4aae8b027a218bc6e1af7

SHA1
0350e46c1df6934903c4820a00b0bc4721779e5f

SHA256
60c64f6803d7ad1408d0a8628100470859b16ef332d5f1bd8bb2debe51251d04

SHA512
60e71435a9a23f4c144d641844f4182ddc9aa4ccd3e99232149a187112dce96458aab9587e9fea46f5dc5a52f5ca758969a04657a2b5b10241d3e4554f7c85e0

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

Filesize
1KB

MD5
d3235ed022a42ec4338123ab87144afa

SHA1
5058608bc0deb720a585a2304a8f7cf63a50a315

SHA256
10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

SHA512
236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

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

Filesize
1KB

MD5
8ad5d4ad8a98459f93b950042d102f34

SHA1
05936202f3a2b792fc0c146fe90ba96c9486d783

SHA256
7a8d8f09e0734c537bf47b9768f1a8270d247879c1b246ea11836af9dc499e5e

SHA512
abdbdd4e56f2f9ca4111fe95c8257e5c2985d21b8d73052fa1c409dd8cc3ba4b8c874d0f1ce04994c4b3a499381bf5baa3c617019293fd9e74ecf43e298e81bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zxlsrnu4.d25.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1004-34-0x00000281F7020000-0x00000281F703E000-memory.dmp

Filesize
120KB

Download
memory/1004-32-0x00000281F7210000-0x00000281F7286000-memory.dmp

Filesize
472KB

Download
memory/1004-33-0x00000281F7190000-0x00000281F71E0000-memory.dmp

Filesize
320KB

Download
memory/1004-0-0x00007FFD06B13000-0x00007FFD06B15000-memory.dmp

Filesize
8KB

Download
memory/1004-2-0x00007FFD06B10000-0x00007FFD075D1000-memory.dmp

Filesize
10.8MB

Download
memory/1004-70-0x00000281F7060000-0x00000281F706A000-memory.dmp

Filesize
40KB

Download
memory/1004-71-0x00000281F7390000-0x00000281F73A2000-memory.dmp

Filesize
72KB

Download
memory/1004-1-0x00000281F4A80000-0x00000281F4AC0000-memory.dmp

Filesize
256KB

Download
memory/1004-89-0x00007FFD06B10000-0x00007FFD075D1000-memory.dmp

Filesize
10.8MB

Download
memory/3552-17-0x00007FFD06B10000-0x00007FFD075D1000-memory.dmp

Filesize
10.8MB

Download
memory/3552-14-0x00007FFD06B10000-0x00007FFD075D1000-memory.dmp

Filesize
10.8MB

Download
memory/3552-9-0x00000171EEAF0000-0x00000171EEB12000-memory.dmp

Filesize
136KB

Download
memory/3552-3-0x00007FFD06B10000-0x00007FFD075D1000-memory.dmp

Filesize
10.8MB

Download