umbral | 733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17/01/2025, 11:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe
Size

231KB
MD5

0adae0c64017d858ba11f98f8276a970
SHA1

4363eac789ffcf9d966981069e2709a249509181
SHA256

733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef
SHA512

e31f1d41ad682b6e566e628ec02fbcc690f79026442e6171f3ae745058d80c72cdc36b6822f84d9c950d8aa24bdc4820257b30a43bb7138888df65bc423cdea8
SSDEEP

6144:xloZMffsXtioRkts/cnnK6cMltMMjw2xpaBPyAxVkElb8e1mhzLHiy:DoZdtlRk83MltMMjw2xpaBPyAxVkAMWy

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/2476-1-0x000001F20FA40000-0x000001F20FA80000-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
2460	powershell.exe
4312	powershell.exe
3568	powershell.exe
4056	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.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

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
7	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
5004	wmic.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe
2460	powershell.exe
2460	powershell.exe
3568	powershell.exe
3568	powershell.exe
4056	powershell.exe
4056	powershell.exe
3136	powershell.exe
3136	powershell.exe
4312	powershell.exe
4312	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe
Token: SeIncreaseQuotaPrivilege	4576	wmic.exe
Token: SeSecurityPrivilege	4576	wmic.exe
Token: SeTakeOwnershipPrivilege	4576	wmic.exe
Token: SeLoadDriverPrivilege	4576	wmic.exe
Token: SeSystemProfilePrivilege	4576	wmic.exe
Token: SeSystemtimePrivilege	4576	wmic.exe
Token: SeProfSingleProcessPrivilege	4576	wmic.exe
Token: SeIncBasePriorityPrivilege	4576	wmic.exe
Token: SeCreatePagefilePrivilege	4576	wmic.exe
Token: SeBackupPrivilege	4576	wmic.exe
Token: SeRestorePrivilege	4576	wmic.exe
Token: SeShutdownPrivilege	4576	wmic.exe
Token: SeDebugPrivilege	4576	wmic.exe
Token: SeSystemEnvironmentPrivilege	4576	wmic.exe
Token: SeRemoteShutdownPrivilege	4576	wmic.exe
Token: SeUndockPrivilege	4576	wmic.exe
Token: SeManageVolumePrivilege	4576	wmic.exe
Token: 33	4576	wmic.exe
Token: 34	4576	wmic.exe
Token: 35	4576	wmic.exe
Token: 36	4576	wmic.exe
Token: SeIncreaseQuotaPrivilege	4576	wmic.exe
Token: SeSecurityPrivilege	4576	wmic.exe
Token: SeTakeOwnershipPrivilege	4576	wmic.exe
Token: SeLoadDriverPrivilege	4576	wmic.exe
Token: SeSystemProfilePrivilege	4576	wmic.exe
Token: SeSystemtimePrivilege	4576	wmic.exe
Token: SeProfSingleProcessPrivilege	4576	wmic.exe
Token: SeIncBasePriorityPrivilege	4576	wmic.exe
Token: SeCreatePagefilePrivilege	4576	wmic.exe
Token: SeBackupPrivilege	4576	wmic.exe
Token: SeRestorePrivilege	4576	wmic.exe
Token: SeShutdownPrivilege	4576	wmic.exe
Token: SeDebugPrivilege	4576	wmic.exe
Token: SeSystemEnvironmentPrivilege	4576	wmic.exe
Token: SeRemoteShutdownPrivilege	4576	wmic.exe
Token: SeUndockPrivilege	4576	wmic.exe
Token: SeManageVolumePrivilege	4576	wmic.exe
Token: 33	4576	wmic.exe
Token: 34	4576	wmic.exe
Token: 35	4576	wmic.exe
Token: 36	4576	wmic.exe
Token: SeDebugPrivilege	2460	powershell.exe
Token: SeDebugPrivilege	3568	powershell.exe
Token: SeDebugPrivilege	4056	powershell.exe
Token: SeDebugPrivilege	3136	powershell.exe
Token: SeIncreaseQuotaPrivilege	1176	wmic.exe
Token: SeSecurityPrivilege	1176	wmic.exe
Token: SeTakeOwnershipPrivilege	1176	wmic.exe
Token: SeLoadDriverPrivilege	1176	wmic.exe
Token: SeSystemProfilePrivilege	1176	wmic.exe
Token: SeSystemtimePrivilege	1176	wmic.exe
Token: SeProfSingleProcessPrivilege	1176	wmic.exe
Token: SeIncBasePriorityPrivilege	1176	wmic.exe
Token: SeCreatePagefilePrivilege	1176	wmic.exe
Token: SeBackupPrivilege	1176	wmic.exe
Token: SeRestorePrivilege	1176	wmic.exe
Token: SeShutdownPrivilege	1176	wmic.exe
Token: SeDebugPrivilege	1176	wmic.exe
Token: SeSystemEnvironmentPrivilege	1176	wmic.exe
Token: SeRemoteShutdownPrivilege	1176	wmic.exe
Token: SeUndockPrivilege	1176	wmic.exe
Token: SeManageVolumePrivilege	1176	wmic.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 4576	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	83
PID 2476 wrote to memory of 4576	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	83
PID 2476 wrote to memory of 2460	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	86
PID 2476 wrote to memory of 2460	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	86
PID 2476 wrote to memory of 3568	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	88
PID 2476 wrote to memory of 3568	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	88
PID 2476 wrote to memory of 4056	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	90
PID 2476 wrote to memory of 4056	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	90
PID 2476 wrote to memory of 3136	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	92
PID 2476 wrote to memory of 3136	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	92
PID 2476 wrote to memory of 1176	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	97
PID 2476 wrote to memory of 1176	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	97
PID 2476 wrote to memory of 1036	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	100
PID 2476 wrote to memory of 1036	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	100
PID 2476 wrote to memory of 4804	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	103
PID 2476 wrote to memory of 4804	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	103
PID 2476 wrote to memory of 4312	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	105
PID 2476 wrote to memory of 4312	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	105
PID 2476 wrote to memory of 5004	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	107
PID 2476 wrote to memory of 5004	2476	733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe	107

C:\Users\Admin\AppData\Local\Temp\733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe
"C:\Users\Admin\AppData\Local\Temp\733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4576
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\733fbf085c90972383ee6b0f9402910222a8f8b20367fccf4ff9f1a9ea51e7ef.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2460
- 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:3568
- 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:4056
- 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:3136
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1176
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1036
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4804
- 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:4312
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:5004

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

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
dcd83f3a9bd52a6c0821eb961e87f0b9

SHA1
553ced8b5bdca9bf3379571948efe530628e78ea

SHA256
da3851259b355076f41331c3864fdcd7688b05ca312f6fcdb420f710ed7cfeaa

SHA512
fd76f13f1c8f1e73be04a615c9b010dde5cbf889642d187d410db32d4fdda9d0e994654fa468643ed8fe7563c07a8d1df30b2f5b26856946ed9b2d18d10a4fa5

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
2984662ba3f86d7fcf26758b5b76754d

SHA1
bc2a43ffd898222ee84406313f3834f226928379

SHA256
f0815f797b0c1829745dd65985f28d459688f91ceb2f3d76fed2d4309589bcde

SHA512
a06251a7a14559ebf5627a3c6b03fda9ded1d4ee44991283c824ccf5011cdf67665696d2d9b23507cbb3e3b9943b9e9f79ef28d3657eb61fb99920225417ab11

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ktmu12p2.jqw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2460-4-0x00007FFBBD680000-0x00007FFBBE141000-memory.dmp

Filesize
10.8MB

Download
memory/2460-5-0x00007FFBBD680000-0x00007FFBBE141000-memory.dmp

Filesize
10.8MB

Download
memory/2460-7-0x000001FBFB040000-0x000001FBFB062000-memory.dmp

Filesize
136KB

Download
memory/2460-18-0x00007FFBBD680000-0x00007FFBBE141000-memory.dmp

Filesize
10.8MB

Download
memory/2460-3-0x00007FFBBD680000-0x00007FFBBE141000-memory.dmp

Filesize
10.8MB

Download
memory/2476-33-0x000001F22A260000-0x000001F22A2B0000-memory.dmp

Filesize
320KB

Download
memory/2476-32-0x000001F22A190000-0x000001F22A206000-memory.dmp

Filesize
472KB

Download
memory/2476-34-0x000001F22A150000-0x000001F22A16E000-memory.dmp

Filesize
120KB

Download
memory/2476-1-0x000001F20FA40000-0x000001F20FA80000-memory.dmp

Filesize
256KB

Download
memory/2476-0-0x00007FFBBD683000-0x00007FFBBD685000-memory.dmp

Filesize
8KB

Download
memory/2476-71-0x000001F22A110000-0x000001F22A11A000-memory.dmp

Filesize
40KB

Download
memory/2476-72-0x000001F22A170000-0x000001F22A182000-memory.dmp

Filesize
72KB

Download
memory/2476-2-0x00007FFBBD680000-0x00007FFBBE141000-memory.dmp

Filesize
10.8MB

Download
memory/2476-88-0x00007FFBBD683000-0x00007FFBBD685000-memory.dmp

Filesize
8KB

Download
memory/2476-93-0x00007FFBBD680000-0x00007FFBBE141000-memory.dmp

Filesize
10.8MB

Download