umbral | e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2024 00:48

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General

Target

e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe
Size

231KB
MD5

81addafe30f78a103061bf331bb04350
SHA1

3f8bf8d7c3519f149d60d20e87ae8204f4428db8
SHA256

e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7
SHA512

5438b5042df46e88a3495be854d20f0ecf30c389a10223703eef82b8b7538df0605e01abcda012074ac767596e91f19f1271a824943937eaff5f46a7c3abe39d
SSDEEP

6144:xloZM9rIkd8g+EtXHkv/iD426oJKInDAHZMK7bCFd+lP8e1mQ4i:DoZOL+EP8ToJKInDAHZMK7bCGZp

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/4624-1-0x000001C1F04E0000-0x000001C1F0520000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Umbral family
umbral

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
2752	powershell.exe
1048	powershell.exe
3628	powershell.exe
644	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
19	discord.com
20	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
16	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
3368	cmd.exe
1860	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2232	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1860	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2752	powershell.exe
2752	powershell.exe
3628	powershell.exe
3628	powershell.exe
644	powershell.exe
644	powershell.exe
1608	powershell.exe
1608	powershell.exe
1048	powershell.exe
1048	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe
Token: SeDebugPrivilege	2752	powershell.exe
Token: SeDebugPrivilege	3628	powershell.exe
Token: SeDebugPrivilege	644	powershell.exe
Token: SeDebugPrivilege	1608	powershell.exe
Token: SeIncreaseQuotaPrivilege	1852	wmic.exe
Token: SeSecurityPrivilege	1852	wmic.exe
Token: SeTakeOwnershipPrivilege	1852	wmic.exe
Token: SeLoadDriverPrivilege	1852	wmic.exe
Token: SeSystemProfilePrivilege	1852	wmic.exe
Token: SeSystemtimePrivilege	1852	wmic.exe
Token: SeProfSingleProcessPrivilege	1852	wmic.exe
Token: SeIncBasePriorityPrivilege	1852	wmic.exe
Token: SeCreatePagefilePrivilege	1852	wmic.exe
Token: SeBackupPrivilege	1852	wmic.exe
Token: SeRestorePrivilege	1852	wmic.exe
Token: SeShutdownPrivilege	1852	wmic.exe
Token: SeDebugPrivilege	1852	wmic.exe
Token: SeSystemEnvironmentPrivilege	1852	wmic.exe
Token: SeRemoteShutdownPrivilege	1852	wmic.exe
Token: SeUndockPrivilege	1852	wmic.exe
Token: SeManageVolumePrivilege	1852	wmic.exe
Token: 33	1852	wmic.exe
Token: 34	1852	wmic.exe
Token: 35	1852	wmic.exe
Token: 36	1852	wmic.exe
Token: SeIncreaseQuotaPrivilege	1852	wmic.exe
Token: SeSecurityPrivilege	1852	wmic.exe
Token: SeTakeOwnershipPrivilege	1852	wmic.exe
Token: SeLoadDriverPrivilege	1852	wmic.exe
Token: SeSystemProfilePrivilege	1852	wmic.exe
Token: SeSystemtimePrivilege	1852	wmic.exe
Token: SeProfSingleProcessPrivilege	1852	wmic.exe
Token: SeIncBasePriorityPrivilege	1852	wmic.exe
Token: SeCreatePagefilePrivilege	1852	wmic.exe
Token: SeBackupPrivilege	1852	wmic.exe
Token: SeRestorePrivilege	1852	wmic.exe
Token: SeShutdownPrivilege	1852	wmic.exe
Token: SeDebugPrivilege	1852	wmic.exe
Token: SeSystemEnvironmentPrivilege	1852	wmic.exe
Token: SeRemoteShutdownPrivilege	1852	wmic.exe
Token: SeUndockPrivilege	1852	wmic.exe
Token: SeManageVolumePrivilege	1852	wmic.exe
Token: 33	1852	wmic.exe
Token: 34	1852	wmic.exe
Token: 35	1852	wmic.exe
Token: 36	1852	wmic.exe
Token: SeIncreaseQuotaPrivilege	2740	wmic.exe
Token: SeSecurityPrivilege	2740	wmic.exe
Token: SeTakeOwnershipPrivilege	2740	wmic.exe
Token: SeLoadDriverPrivilege	2740	wmic.exe
Token: SeSystemProfilePrivilege	2740	wmic.exe
Token: SeSystemtimePrivilege	2740	wmic.exe
Token: SeProfSingleProcessPrivilege	2740	wmic.exe
Token: SeIncBasePriorityPrivilege	2740	wmic.exe
Token: SeCreatePagefilePrivilege	2740	wmic.exe
Token: SeBackupPrivilege	2740	wmic.exe
Token: SeRestorePrivilege	2740	wmic.exe
Token: SeShutdownPrivilege	2740	wmic.exe
Token: SeDebugPrivilege	2740	wmic.exe
Token: SeSystemEnvironmentPrivilege	2740	wmic.exe
Token: SeRemoteShutdownPrivilege	2740	wmic.exe
Token: SeUndockPrivilege	2740	wmic.exe
Token: SeManageVolumePrivilege	2740	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 3672	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	82
PID 4624 wrote to memory of 3672	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	82
PID 4624 wrote to memory of 2752	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	84
PID 4624 wrote to memory of 2752	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	84
PID 4624 wrote to memory of 3628	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	86
PID 4624 wrote to memory of 3628	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	86
PID 4624 wrote to memory of 644	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	88
PID 4624 wrote to memory of 644	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	88
PID 4624 wrote to memory of 1608	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	90
PID 4624 wrote to memory of 1608	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	90
PID 4624 wrote to memory of 1852	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	92
PID 4624 wrote to memory of 1852	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	92
PID 4624 wrote to memory of 2740	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	95
PID 4624 wrote to memory of 2740	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	95
PID 4624 wrote to memory of 1328	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	97
PID 4624 wrote to memory of 1328	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	97
PID 4624 wrote to memory of 1048	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	99
PID 4624 wrote to memory of 1048	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	99
PID 4624 wrote to memory of 2232	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	101
PID 4624 wrote to memory of 2232	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	101
PID 4624 wrote to memory of 3368	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	103
PID 4624 wrote to memory of 3368	4624	e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe	103
PID 3368 wrote to memory of 1860	3368	cmd.exe	105
PID 3368 wrote to memory of 1860	3368	cmd.exe	105

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3672	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe
"C:\Users\Admin\AppData\Local\Temp\e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe"
  2⤵
  - Views/modifies file attributes
  PID:3672
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2752
- 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:3628
- 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:644
- 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:1608
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1852
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2740
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1328
- 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:1048
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2232
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\e6bce403ca6d89fde32903e97f5bb76dca2d6b21483c345052dab209a21618b7N.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3368
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1860

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

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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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
ba42012e626d8c04b25c5e8bcb49d58e

SHA1
4f542888067e87d2d4dd8ced7bc901abd60f819b

SHA256
0a3c73d3b3afc81747d415241a047a1cadd117a0536606b89e57ecf8836e40ff

SHA512
6678e24f430379c3c2ec0385fc02d0db9a65720072b57e4b36f23be65c82b4d3da2692e1bf0d575bdd59d5673fa1b64ab99d1881367af632bb89121b1981fe11

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

Filesize
1KB

MD5
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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

Filesize
1KB

MD5
cb711d82584fe3dc5745bfb99820569f

SHA1
429adfe731c69d9cbf3b52653e1988c14b0b9d0c

SHA256
2191f862ec40511db0dddc17ca49a894b91a3bde6dff599eb64f58a0aef79856

SHA512
51c85e4a327ac74a37d981771de1fa5621191f05513dd931fa7056a6af77aa44e93debd882592784f76da37815e03f620d8314333d9ea0e193e4d5ea424dfd5a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_l1f2yjst.5lm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2752-4-0x00000160FE7D0000-0x00000160FE7F2000-memory.dmp

Filesize
136KB

Download
memory/2752-14-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download
memory/2752-15-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download
memory/2752-18-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download
memory/2752-3-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download
memory/4624-34-0x000001C1F2CA0000-0x000001C1F2CF0000-memory.dmp

Filesize
320KB

Download
memory/4624-33-0x000001C1F2C10000-0x000001C1F2C86000-memory.dmp

Filesize
472KB

Download
memory/4624-35-0x000001C1F2BB0000-0x000001C1F2BCE000-memory.dmp

Filesize
120KB

Download
memory/4624-1-0x000001C1F04E0000-0x000001C1F0520000-memory.dmp

Filesize
256KB

Download
memory/4624-0-0x00007FFCFD083000-0x00007FFCFD085000-memory.dmp

Filesize
8KB

Download
memory/4624-72-0x000001C1F2BD0000-0x000001C1F2BDA000-memory.dmp

Filesize
40KB

Download
memory/4624-73-0x000001C1F2CF0000-0x000001C1F2D02000-memory.dmp

Filesize
72KB

Download
memory/4624-2-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download
memory/4624-93-0x00007FFCFD080000-0x00007FFCFDB41000-memory.dmp

Filesize
10.8MB

Download