umbral | 9ea40a973a1b383149e1ad60b6f52771f3c7aad02cebf19cb9955a71892c0361

Analysis

max time kernel
101s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-08-2024 10:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ec5208d011b3fc9788fa67fff2208280N.exe
Size

230KB
MD5

ec5208d011b3fc9788fa67fff2208280
SHA1

9df5d99910a56fe4b1c31dd8cbc0c59cbf966eb2
SHA256

9ea40a973a1b383149e1ad60b6f52771f3c7aad02cebf19cb9955a71892c0361
SHA512

8ccecc78171b7dc77acd6d5df8c6d2c14a861c1afb01794f631383c839d2c2bbccb2fd4020416b73da105dbf71f8de936d45a75070e1e45797276aadfb2e191a
SSDEEP

6144:aloZM+rIkd8g+EtXHkv/iD4Q+iihv0IHc2PxM4dDob8e1mhqi:koZtL+EP8Q+iihv0IHc2PxM4d8e

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/344-0-0x000002B74C7A0000-0x000002B74C7E0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4756	powershell.exe
1416	powershell.exe
116	powershell.exe
1280	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	ec5208d011b3fc9788fa67fff2208280N.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
29	discord.com
28	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

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2640	cmd.exe
1724	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
5096	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1724	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
344	ec5208d011b3fc9788fa67fff2208280N.exe
4756	powershell.exe
4756	powershell.exe
116	powershell.exe
116	powershell.exe
1280	powershell.exe
1280	powershell.exe
4508	powershell.exe
4508	powershell.exe
1416	powershell.exe
1416	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	344	ec5208d011b3fc9788fa67fff2208280N.exe
Token: SeIncreaseQuotaPrivilege	2976	wmic.exe
Token: SeSecurityPrivilege	2976	wmic.exe
Token: SeTakeOwnershipPrivilege	2976	wmic.exe
Token: SeLoadDriverPrivilege	2976	wmic.exe
Token: SeSystemProfilePrivilege	2976	wmic.exe
Token: SeSystemtimePrivilege	2976	wmic.exe
Token: SeProfSingleProcessPrivilege	2976	wmic.exe
Token: SeIncBasePriorityPrivilege	2976	wmic.exe
Token: SeCreatePagefilePrivilege	2976	wmic.exe
Token: SeBackupPrivilege	2976	wmic.exe
Token: SeRestorePrivilege	2976	wmic.exe
Token: SeShutdownPrivilege	2976	wmic.exe
Token: SeDebugPrivilege	2976	wmic.exe
Token: SeSystemEnvironmentPrivilege	2976	wmic.exe
Token: SeRemoteShutdownPrivilege	2976	wmic.exe
Token: SeUndockPrivilege	2976	wmic.exe
Token: SeManageVolumePrivilege	2976	wmic.exe
Token: 33	2976	wmic.exe
Token: 34	2976	wmic.exe
Token: 35	2976	wmic.exe
Token: 36	2976	wmic.exe
Token: SeIncreaseQuotaPrivilege	2976	wmic.exe
Token: SeSecurityPrivilege	2976	wmic.exe
Token: SeTakeOwnershipPrivilege	2976	wmic.exe
Token: SeLoadDriverPrivilege	2976	wmic.exe
Token: SeSystemProfilePrivilege	2976	wmic.exe
Token: SeSystemtimePrivilege	2976	wmic.exe
Token: SeProfSingleProcessPrivilege	2976	wmic.exe
Token: SeIncBasePriorityPrivilege	2976	wmic.exe
Token: SeCreatePagefilePrivilege	2976	wmic.exe
Token: SeBackupPrivilege	2976	wmic.exe
Token: SeRestorePrivilege	2976	wmic.exe
Token: SeShutdownPrivilege	2976	wmic.exe
Token: SeDebugPrivilege	2976	wmic.exe
Token: SeSystemEnvironmentPrivilege	2976	wmic.exe
Token: SeRemoteShutdownPrivilege	2976	wmic.exe
Token: SeUndockPrivilege	2976	wmic.exe
Token: SeManageVolumePrivilege	2976	wmic.exe
Token: 33	2976	wmic.exe
Token: 34	2976	wmic.exe
Token: 35	2976	wmic.exe
Token: 36	2976	wmic.exe
Token: SeDebugPrivilege	4756	powershell.exe
Token: SeDebugPrivilege	116	powershell.exe
Token: SeDebugPrivilege	1280	powershell.exe
Token: SeDebugPrivilege	4508	powershell.exe
Token: SeIncreaseQuotaPrivilege	4880	wmic.exe
Token: SeSecurityPrivilege	4880	wmic.exe
Token: SeTakeOwnershipPrivilege	4880	wmic.exe
Token: SeLoadDriverPrivilege	4880	wmic.exe
Token: SeSystemProfilePrivilege	4880	wmic.exe
Token: SeSystemtimePrivilege	4880	wmic.exe
Token: SeProfSingleProcessPrivilege	4880	wmic.exe
Token: SeIncBasePriorityPrivilege	4880	wmic.exe
Token: SeCreatePagefilePrivilege	4880	wmic.exe
Token: SeBackupPrivilege	4880	wmic.exe
Token: SeRestorePrivilege	4880	wmic.exe
Token: SeShutdownPrivilege	4880	wmic.exe
Token: SeDebugPrivilege	4880	wmic.exe
Token: SeSystemEnvironmentPrivilege	4880	wmic.exe
Token: SeRemoteShutdownPrivilege	4880	wmic.exe
Token: SeUndockPrivilege	4880	wmic.exe
Token: SeManageVolumePrivilege	4880	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 344 wrote to memory of 2976	344	ec5208d011b3fc9788fa67fff2208280N.exe	84
PID 344 wrote to memory of 2976	344	ec5208d011b3fc9788fa67fff2208280N.exe	84
PID 344 wrote to memory of 4968	344	ec5208d011b3fc9788fa67fff2208280N.exe	90
PID 344 wrote to memory of 4968	344	ec5208d011b3fc9788fa67fff2208280N.exe	90
PID 344 wrote to memory of 4756	344	ec5208d011b3fc9788fa67fff2208280N.exe	92
PID 344 wrote to memory of 4756	344	ec5208d011b3fc9788fa67fff2208280N.exe	92
PID 344 wrote to memory of 116	344	ec5208d011b3fc9788fa67fff2208280N.exe	94
PID 344 wrote to memory of 116	344	ec5208d011b3fc9788fa67fff2208280N.exe	94
PID 344 wrote to memory of 1280	344	ec5208d011b3fc9788fa67fff2208280N.exe	96
PID 344 wrote to memory of 1280	344	ec5208d011b3fc9788fa67fff2208280N.exe	96
PID 344 wrote to memory of 4508	344	ec5208d011b3fc9788fa67fff2208280N.exe	100
PID 344 wrote to memory of 4508	344	ec5208d011b3fc9788fa67fff2208280N.exe	100
PID 344 wrote to memory of 4880	344	ec5208d011b3fc9788fa67fff2208280N.exe	103
PID 344 wrote to memory of 4880	344	ec5208d011b3fc9788fa67fff2208280N.exe	103
PID 344 wrote to memory of 3536	344	ec5208d011b3fc9788fa67fff2208280N.exe	105
PID 344 wrote to memory of 3536	344	ec5208d011b3fc9788fa67fff2208280N.exe	105
PID 344 wrote to memory of 4560	344	ec5208d011b3fc9788fa67fff2208280N.exe	107
PID 344 wrote to memory of 4560	344	ec5208d011b3fc9788fa67fff2208280N.exe	107
PID 344 wrote to memory of 1416	344	ec5208d011b3fc9788fa67fff2208280N.exe	109
PID 344 wrote to memory of 1416	344	ec5208d011b3fc9788fa67fff2208280N.exe	109
PID 344 wrote to memory of 5096	344	ec5208d011b3fc9788fa67fff2208280N.exe	111
PID 344 wrote to memory of 5096	344	ec5208d011b3fc9788fa67fff2208280N.exe	111
PID 344 wrote to memory of 2640	344	ec5208d011b3fc9788fa67fff2208280N.exe	113
PID 344 wrote to memory of 2640	344	ec5208d011b3fc9788fa67fff2208280N.exe	113
PID 2640 wrote to memory of 1724	2640	cmd.exe	116
PID 2640 wrote to memory of 1724	2640	cmd.exe	116

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4968	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ec5208d011b3fc9788fa67fff2208280N.exe
"C:\Users\Admin\AppData\Local\Temp\ec5208d011b3fc9788fa67fff2208280N.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:344
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2976
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\ec5208d011b3fc9788fa67fff2208280N.exe"
  2⤵
  - Views/modifies file attributes
  PID:4968
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\ec5208d011b3fc9788fa67fff2208280N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4756
- 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⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:116
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1280
- 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:4508
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4880
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3536
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4560
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:1416
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:5096
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\ec5208d011b3fc9788fa67fff2208280N.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1724

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
df6c4e5c3091c14551e6c92f07717617

SHA1
1ea87111035496c1b2b74cef8b5c62d00ac072c9

SHA256
b79dc75372707ff84a643a9e4cff6fad2d1a936b54d458088850c62c96e2f231

SHA512
ab861efd0ff28a4bae3513a884d5b00c1b68d8f0bd54a00428bbb65a6954f8778e8f5300362025265251cb425c5ed77608b10776f382c3b392916ae46e38db35

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

Filesize
1KB

MD5
88be3bc8a7f90e3953298c0fdbec4d72

SHA1
f4969784ad421cc80ef45608727aacd0f6bf2e4b

SHA256
533c8470b41084e40c5660569ebbdb7496520d449629a235e8053e84025f348a

SHA512
4fce64e2dacddbc03314048fef1ce356ee2647c14733da121c23c65507eeb8d721d6b690ad5463319b364dc4fa95904ad6ab096907f32918e3406ef438a6ef7c

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

Filesize
1KB

MD5
288f76eb6350b99897bf8a40a26d7b88

SHA1
7f386d05202de2cf090bbda84d633a640730e090

SHA256
1b9a2714ecfaf4b2e7d7961d5f2537ea360ad0df46a0fa789255235b077075d1

SHA512
ffafc9d47140408afba98a9832433c0829ba696524c56d03f4ce67ae84d369c658d3a0b3cbfc62f8e5d83fc91f8f73fc1dd9a27f0deaefd1d07485a63face869

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yvbeoe5n.hac.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/344-71-0x000002B766D80000-0x000002B766D8A000-memory.dmp

Filesize
40KB

Download
memory/344-35-0x000002B74E520000-0x000002B74E53E000-memory.dmp

Filesize
120KB

Download
memory/344-90-0x00007FFF5D960000-0x00007FFF5E421000-memory.dmp

Filesize
10.8MB

Download
memory/344-72-0x000002B766ED0000-0x000002B766EE2000-memory.dmp

Filesize
72KB

Download
memory/344-2-0x00007FFF5D960000-0x00007FFF5E421000-memory.dmp

Filesize
10.8MB

Download
memory/344-33-0x000002B766F50000-0x000002B766FC6000-memory.dmp

Filesize
472KB

Download
memory/344-34-0x000002B766FD0000-0x000002B767020000-memory.dmp

Filesize
320KB

Download
memory/344-1-0x00007FFF5D963000-0x00007FFF5D965000-memory.dmp

Filesize
8KB

Download
memory/344-0-0x000002B74C7A0000-0x000002B74C7E0000-memory.dmp

Filesize
256KB

Download
memory/4756-15-0x00007FFF5D960000-0x00007FFF5E421000-memory.dmp

Filesize
10.8MB

Download
memory/4756-4-0x00007FFF5D960000-0x00007FFF5E421000-memory.dmp

Filesize
10.8MB

Download
memory/4756-3-0x00007FFF5D960000-0x00007FFF5E421000-memory.dmp

Filesize
10.8MB

Download
memory/4756-14-0x00000236C39C0000-0x00000236C39E2000-memory.dmp

Filesize
136KB

Download
memory/4756-18-0x00007FFF5D960000-0x00007FFF5E421000-memory.dmp

Filesize
10.8MB

Download