umbral | 824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-08-2024 13:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe
Size

227KB
MD5

ef323a7483653ffb1fc4ff036576e065
SHA1

80e63b57a7ad6394f778c7aa5a855520f1533589
SHA256

824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a
SHA512

04785049f73acbacc2b0ea89e2bbc547ac6fa302eac4cbbd895f8d6a873c8b0dcfa8a8762d90847c9a0bf28862e12b294cb70f073019a6046bac104b9189ba7e
SSDEEP

6144:eloZM3fsXtioRkts/cnnK6cMluDdCFzQEb0CzFQMpnhb8e1msQci:IoZ1tlRk83MluDdCFzQEb0CzFQMpZ3K

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3972-0-0x0000020411230000-0x0000020411270000-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
4784	powershell.exe
2900	powershell.exe
4652	powershell.exe
2324	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.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
3	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
1324	cmd.exe
1608	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4508	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1608	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe
4784	powershell.exe
4784	powershell.exe
4652	powershell.exe
4652	powershell.exe
2324	powershell.exe
2324	powershell.exe
1116	powershell.exe
1116	powershell.exe
2900	powershell.exe
2900	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe
Token: SeIncreaseQuotaPrivilege	4280	wmic.exe
Token: SeSecurityPrivilege	4280	wmic.exe
Token: SeTakeOwnershipPrivilege	4280	wmic.exe
Token: SeLoadDriverPrivilege	4280	wmic.exe
Token: SeSystemProfilePrivilege	4280	wmic.exe
Token: SeSystemtimePrivilege	4280	wmic.exe
Token: SeProfSingleProcessPrivilege	4280	wmic.exe
Token: SeIncBasePriorityPrivilege	4280	wmic.exe
Token: SeCreatePagefilePrivilege	4280	wmic.exe
Token: SeBackupPrivilege	4280	wmic.exe
Token: SeRestorePrivilege	4280	wmic.exe
Token: SeShutdownPrivilege	4280	wmic.exe
Token: SeDebugPrivilege	4280	wmic.exe
Token: SeSystemEnvironmentPrivilege	4280	wmic.exe
Token: SeRemoteShutdownPrivilege	4280	wmic.exe
Token: SeUndockPrivilege	4280	wmic.exe
Token: SeManageVolumePrivilege	4280	wmic.exe
Token: 33	4280	wmic.exe
Token: 34	4280	wmic.exe
Token: 35	4280	wmic.exe
Token: 36	4280	wmic.exe
Token: SeIncreaseQuotaPrivilege	4280	wmic.exe
Token: SeSecurityPrivilege	4280	wmic.exe
Token: SeTakeOwnershipPrivilege	4280	wmic.exe
Token: SeLoadDriverPrivilege	4280	wmic.exe
Token: SeSystemProfilePrivilege	4280	wmic.exe
Token: SeSystemtimePrivilege	4280	wmic.exe
Token: SeProfSingleProcessPrivilege	4280	wmic.exe
Token: SeIncBasePriorityPrivilege	4280	wmic.exe
Token: SeCreatePagefilePrivilege	4280	wmic.exe
Token: SeBackupPrivilege	4280	wmic.exe
Token: SeRestorePrivilege	4280	wmic.exe
Token: SeShutdownPrivilege	4280	wmic.exe
Token: SeDebugPrivilege	4280	wmic.exe
Token: SeSystemEnvironmentPrivilege	4280	wmic.exe
Token: SeRemoteShutdownPrivilege	4280	wmic.exe
Token: SeUndockPrivilege	4280	wmic.exe
Token: SeManageVolumePrivilege	4280	wmic.exe
Token: 33	4280	wmic.exe
Token: 34	4280	wmic.exe
Token: 35	4280	wmic.exe
Token: 36	4280	wmic.exe
Token: SeDebugPrivilege	4784	powershell.exe
Token: SeDebugPrivilege	4652	powershell.exe
Token: SeDebugPrivilege	2324	powershell.exe
Token: SeDebugPrivilege	1116	powershell.exe
Token: SeIncreaseQuotaPrivilege	2144	wmic.exe
Token: SeSecurityPrivilege	2144	wmic.exe
Token: SeTakeOwnershipPrivilege	2144	wmic.exe
Token: SeLoadDriverPrivilege	2144	wmic.exe
Token: SeSystemProfilePrivilege	2144	wmic.exe
Token: SeSystemtimePrivilege	2144	wmic.exe
Token: SeProfSingleProcessPrivilege	2144	wmic.exe
Token: SeIncBasePriorityPrivilege	2144	wmic.exe
Token: SeCreatePagefilePrivilege	2144	wmic.exe
Token: SeBackupPrivilege	2144	wmic.exe
Token: SeRestorePrivilege	2144	wmic.exe
Token: SeShutdownPrivilege	2144	wmic.exe
Token: SeDebugPrivilege	2144	wmic.exe
Token: SeSystemEnvironmentPrivilege	2144	wmic.exe
Token: SeRemoteShutdownPrivilege	2144	wmic.exe
Token: SeUndockPrivilege	2144	wmic.exe
Token: SeManageVolumePrivilege	2144	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3972 wrote to memory of 4280	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	83
PID 3972 wrote to memory of 4280	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	83
PID 3972 wrote to memory of 1524	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	89
PID 3972 wrote to memory of 1524	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	89
PID 3972 wrote to memory of 4784	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	91
PID 3972 wrote to memory of 4784	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	91
PID 3972 wrote to memory of 4652	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	93
PID 3972 wrote to memory of 4652	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	93
PID 3972 wrote to memory of 2324	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	95
PID 3972 wrote to memory of 2324	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	95
PID 3972 wrote to memory of 1116	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	97
PID 3972 wrote to memory of 1116	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	97
PID 3972 wrote to memory of 2144	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	99
PID 3972 wrote to memory of 2144	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	99
PID 3972 wrote to memory of 4248	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	101
PID 3972 wrote to memory of 4248	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	101
PID 3972 wrote to memory of 1236	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	103
PID 3972 wrote to memory of 1236	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	103
PID 3972 wrote to memory of 2900	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	105
PID 3972 wrote to memory of 2900	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	105
PID 3972 wrote to memory of 4508	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	107
PID 3972 wrote to memory of 4508	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	107
PID 3972 wrote to memory of 1324	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	109
PID 3972 wrote to memory of 1324	3972	824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe	109
PID 1324 wrote to memory of 1608	1324	cmd.exe	111
PID 1324 wrote to memory of 1608	1324	cmd.exe	111

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1524	attrib.exe

C:\Users\Admin\AppData\Local\Temp\824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe
"C:\Users\Admin\AppData\Local\Temp\824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3972
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4280
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe"
  2⤵
  - Views/modifies file attributes
  PID:1524
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4784
- 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:4652
- 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:2324
- 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:1116
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2144
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4248
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1236
- 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:2900
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4508
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\824d0e2ebaa40b7bca3bc0657338a13df78121172fe52e604f45c8033ab7537a.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1324
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1608

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

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
2979eabc783eaca50de7be23dd4eafcf

SHA1
d709ce5f3a06b7958a67e20870bfd95b83cad2ea

SHA256
006cca90e78fbb571532a83082ac6712721a34ea4b21f490058ffb3f521f4903

SHA512
92bc433990572d9427d0c93eef9bd1cc23fa00ed60dd0c9c983d87d3421e02ce3f156c6f88fe916ef6782dbf185cbce083bc0094f8c527f302be6a37d1c53aba

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

Filesize
948B

MD5
c523adc639d16ffb0f96cebc63eed858

SHA1
12ff3728fe7a266d00bea61357e168d1ac35fb8b

SHA256
3f3c9377b171cf14fcf2bfe2ef6ab7753c1470c8fe803fb73317fa3732c55df1

SHA512
36dd1d5df9f67a708087ae024f4088fbe6ed11859c65c896f4c7b40631e418646295078abe0bd1e7062b3dd5f333d8cf86a8542ef719e4b14feec877c60839ba

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
45ad40f012b09e141955482368549640

SHA1
3f9cd15875c1e397c3b2b5592805577ae88a96cb

SHA256
ea3b59172f1a33677f9cb3843fb4d6093b806d3a7cf2f3c6d4692f5421f656ce

SHA512
3de08f8affca1c1450088f560776cf3d65146cadac43c06eb922c7b3cea436e519966cf38458303ffeb1a58c53f8952cffda6c34216fda7594e014b516e83b33

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_efamfl3r.zhd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3972-71-0x0000020412F00000-0x0000020412F0A000-memory.dmp

Filesize
40KB

Download
memory/3972-35-0x0000020412EC0000-0x0000020412EDE000-memory.dmp

Filesize
120KB

Download
memory/3972-90-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp

Filesize
10.8MB

Download
memory/3972-72-0x000002042B950000-0x000002042B962000-memory.dmp

Filesize
72KB

Download
memory/3972-2-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp

Filesize
10.8MB

Download
memory/3972-33-0x000002042B9B0000-0x000002042BA26000-memory.dmp

Filesize
472KB

Download
memory/3972-34-0x000002042BA30000-0x000002042BA80000-memory.dmp

Filesize
320KB

Download
memory/3972-0-0x0000020411230000-0x0000020411270000-memory.dmp

Filesize
256KB

Download
memory/3972-1-0x00007FFE509A3000-0x00007FFE509A5000-memory.dmp

Filesize
8KB

Download
memory/4784-15-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp

Filesize
10.8MB

Download
memory/4784-10-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp

Filesize
10.8MB

Download
memory/4784-3-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp

Filesize
10.8MB

Download
memory/4784-9-0x000001D6217F0000-0x000001D621812000-memory.dmp

Filesize
136KB

Download
memory/4784-18-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp

Filesize
10.8MB

Download