umbral | fb4f48bc53fbd1949222bd3cc0df08e2ac43619adc5117f7d6ded970407c0e1f

Analysis

max time kernel
146s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27-02-2024 14:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

(run this first).exe
Size

231KB
MD5

a300445575b7666a4bcbf8e7d7161bb2
SHA1

cd5f1682962ad047e9cf94689ea876a24126678b
SHA256

fb4f48bc53fbd1949222bd3cc0df08e2ac43619adc5117f7d6ded970407c0e1f
SHA512

e2b13887e7374fe2eb27caaab0852c6df1845c49ac9e75007745524fe94ef028419441433522a14d11ef3d3a93e6461d9d77d752f04b0a6b2c6fa94f4560a7dd
SSDEEP

6144:xloZM+rIkd8g+EtXHkv/iD4W26crT5KyNw4ZL22jUgb8e1mTwi:DoZlL+EP8W26crT5KyNw4ZL22j5wp

Score

10^/10

umbral spyware stealer

Malware Config

Extracted

Family

umbral

https://discord.com/api/webhooks/1195960024082698271/71tRoqUbmviXwGIotGdbaoS_xGN0JSn29ZIgx0C_AdvOlcc3A82nCJp5WVlARNOUpCzB

Signatures

Detect Umbral payload 2 IoCs

resource	yara_rule
behavioral1/memory/4856-0-0x0000025493E50000-0x0000025493E90000-memory.dmp	family_umbral
behavioral1/files/0x0007000000023244-89.dat	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
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
23	discord.com
24	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
20	ip-api.com

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2256	wmic.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4564	powershell.exe
4564	powershell.exe
4024	powershell.exe
4024	powershell.exe
1832	powershell.exe
1832	powershell.exe
3460	taskmgr.exe
3460	taskmgr.exe
1832	powershell.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4856	(run this first).exe
Token: SeDebugPrivilege	4564	powershell.exe
Token: SeDebugPrivilege	4024	powershell.exe
Token: SeIncreaseQuotaPrivilege	1044	wmic.exe
Token: SeSecurityPrivilege	1044	wmic.exe
Token: SeTakeOwnershipPrivilege	1044	wmic.exe
Token: SeLoadDriverPrivilege	1044	wmic.exe
Token: SeSystemProfilePrivilege	1044	wmic.exe
Token: SeSystemtimePrivilege	1044	wmic.exe
Token: SeProfSingleProcessPrivilege	1044	wmic.exe
Token: SeIncBasePriorityPrivilege	1044	wmic.exe
Token: SeCreatePagefilePrivilege	1044	wmic.exe
Token: SeBackupPrivilege	1044	wmic.exe
Token: SeRestorePrivilege	1044	wmic.exe
Token: SeShutdownPrivilege	1044	wmic.exe
Token: SeDebugPrivilege	1044	wmic.exe
Token: SeSystemEnvironmentPrivilege	1044	wmic.exe
Token: SeRemoteShutdownPrivilege	1044	wmic.exe
Token: SeUndockPrivilege	1044	wmic.exe
Token: SeManageVolumePrivilege	1044	wmic.exe
Token: 33	1044	wmic.exe
Token: 34	1044	wmic.exe
Token: 35	1044	wmic.exe
Token: 36	1044	wmic.exe
Token: SeIncreaseQuotaPrivilege	1044	wmic.exe
Token: SeSecurityPrivilege	1044	wmic.exe
Token: SeTakeOwnershipPrivilege	1044	wmic.exe
Token: SeLoadDriverPrivilege	1044	wmic.exe
Token: SeSystemProfilePrivilege	1044	wmic.exe
Token: SeSystemtimePrivilege	1044	wmic.exe
Token: SeProfSingleProcessPrivilege	1044	wmic.exe
Token: SeIncBasePriorityPrivilege	1044	wmic.exe
Token: SeCreatePagefilePrivilege	1044	wmic.exe
Token: SeBackupPrivilege	1044	wmic.exe
Token: SeRestorePrivilege	1044	wmic.exe
Token: SeShutdownPrivilege	1044	wmic.exe
Token: SeDebugPrivilege	1044	wmic.exe
Token: SeSystemEnvironmentPrivilege	1044	wmic.exe
Token: SeRemoteShutdownPrivilege	1044	wmic.exe
Token: SeUndockPrivilege	1044	wmic.exe
Token: SeManageVolumePrivilege	1044	wmic.exe
Token: 33	1044	wmic.exe
Token: 34	1044	wmic.exe
Token: 35	1044	wmic.exe
Token: 36	1044	wmic.exe
Token: SeIncreaseQuotaPrivilege	4060	wmic.exe
Token: SeSecurityPrivilege	4060	wmic.exe
Token: SeTakeOwnershipPrivilege	4060	wmic.exe
Token: SeLoadDriverPrivilege	4060	wmic.exe
Token: SeSystemProfilePrivilege	4060	wmic.exe
Token: SeSystemtimePrivilege	4060	wmic.exe
Token: SeProfSingleProcessPrivilege	4060	wmic.exe
Token: SeIncBasePriorityPrivilege	4060	wmic.exe
Token: SeCreatePagefilePrivilege	4060	wmic.exe
Token: SeBackupPrivilege	4060	wmic.exe
Token: SeRestorePrivilege	4060	wmic.exe
Token: SeShutdownPrivilege	4060	wmic.exe
Token: SeDebugPrivilege	4060	wmic.exe
Token: SeSystemEnvironmentPrivilege	4060	wmic.exe
Token: SeRemoteShutdownPrivilege	4060	wmic.exe
Token: SeUndockPrivilege	4060	wmic.exe
Token: SeManageVolumePrivilege	4060	wmic.exe
Token: 33	4060	wmic.exe
Token: 34	4060	wmic.exe

Suspicious use of FindShellTrayWindow 35 IoCs

pid	Process
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe

Suspicious use of SendNotifyMessage 35 IoCs

pid	Process
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe
3460	taskmgr.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 4564	4856	(run this first).exe	86
PID 4856 wrote to memory of 4564	4856	(run this first).exe	86
PID 4856 wrote to memory of 4024	4856	(run this first).exe	89
PID 4856 wrote to memory of 4024	4856	(run this first).exe	89
PID 4856 wrote to memory of 1044	4856	(run this first).exe	92
PID 4856 wrote to memory of 1044	4856	(run this first).exe	92
PID 4856 wrote to memory of 4060	4856	(run this first).exe	98
PID 4856 wrote to memory of 4060	4856	(run this first).exe	98
PID 4856 wrote to memory of 2992	4856	(run this first).exe	100
PID 4856 wrote to memory of 2992	4856	(run this first).exe	100
PID 4856 wrote to memory of 1832	4856	(run this first).exe	102
PID 4856 wrote to memory of 1832	4856	(run this first).exe	102
PID 4856 wrote to memory of 2256	4856	(run this first).exe	106
PID 4856 wrote to memory of 2256	4856	(run this first).exe	106

C:\Users\Admin\AppData\Local\Temp\(run this first).exe
"C:\Users\Admin\AppData\Local\Temp\(run this first).exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4856
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\(run this first).exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4564
- 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:4024
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1044
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4060
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2992
- 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:1832
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2256

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /7
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\G3LhF.scr

Filesize
231KB

MD5
a300445575b7666a4bcbf8e7d7161bb2

SHA1
cd5f1682962ad047e9cf94689ea876a24126678b

SHA256
fb4f48bc53fbd1949222bd3cc0df08e2ac43619adc5117f7d6ded970407c0e1f

SHA512
e2b13887e7374fe2eb27caaab0852c6df1845c49ac9e75007745524fe94ef028419441433522a14d11ef3d3a93e6461d9d77d752f04b0a6b2c6fa94f4560a7dd

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

Filesize
944B

MD5
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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

Filesize
948B

MD5
04dba2e0763acb9b83dcb94ca0f4c2bd

SHA1
626394aea6be984d4817a88a591fea246bf4a362

SHA256
6590267fae391a722c4b8c759c88d9e694daac163148aad7e69faebe045b75e5

SHA512
1f0dff8f0a7d51ba949d994a6194eeb6d376da60769c0ea99d13c39242327a6bb5d4241b890ff0d29b17e39243b4ba1d9aa00ca952c54bbf13ea2abd95d1eb12

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1dhz5hz0.m4j.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1832-59-0x0000027CCFF00000-0x0000027CCFF10000-memory.dmp

Filesize
64KB

Download
memory/1832-58-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

Filesize
10.8MB

Download
memory/1832-60-0x0000027CCFF00000-0x0000027CCFF10000-memory.dmp

Filesize
64KB

Download
memory/1832-72-0x0000027CCFF00000-0x0000027CCFF10000-memory.dmp

Filesize
64KB

Download
memory/1832-74-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

Filesize
10.8MB

Download
memory/3460-84-0x0000022719850000-0x0000022719851000-memory.dmp

Filesize
4KB

Download
memory/3460-77-0x0000022719850000-0x0000022719851000-memory.dmp

Filesize
4KB

Download
memory/3460-78-0x0000022719850000-0x0000022719851000-memory.dmp

Filesize
4KB

Download
memory/3460-82-0x0000022719850000-0x0000022719851000-memory.dmp

Filesize
4KB

Download
memory/3460-76-0x0000022719850000-0x0000022719851000-memory.dmp

Filesize
4KB

Download
memory/3460-88-0x0000022719850000-0x0000022719851000-memory.dmp

Filesize
4KB

Download
memory/3460-87-0x0000022719850000-0x0000022719851000-memory.dmp

Filesize
4KB

Download
memory/3460-86-0x0000022719850000-0x0000022719851000-memory.dmp

Filesize
4KB

Download
memory/3460-85-0x0000022719850000-0x0000022719851000-memory.dmp

Filesize
4KB

Download
memory/3460-83-0x0000022719850000-0x0000022719851000-memory.dmp

Filesize
4KB

Download
memory/4024-19-0x000002A115160000-0x000002A115170000-memory.dmp

Filesize
64KB

Download
memory/4024-20-0x000002A115160000-0x000002A115170000-memory.dmp

Filesize
64KB

Download
memory/4024-18-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

Filesize
10.8MB

Download
memory/4024-35-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

Filesize
10.8MB

Download
memory/4024-33-0x000002A115160000-0x000002A115170000-memory.dmp

Filesize
64KB

Download
memory/4024-32-0x000002A115160000-0x000002A115170000-memory.dmp

Filesize
64KB

Download
memory/4564-13-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

Filesize
10.8MB

Download
memory/4564-12-0x00000207383A0000-0x00000207383C2000-memory.dmp

Filesize
136KB

Download
memory/4564-14-0x000002071F2C0000-0x000002071F2D0000-memory.dmp

Filesize
64KB

Download
memory/4564-15-0x000002071F2C0000-0x000002071F2D0000-memory.dmp

Filesize
64KB

Download
memory/4564-17-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

Filesize
10.8MB

Download
memory/4856-37-0x00000254AE6A0000-0x00000254AE716000-memory.dmp

Filesize
472KB

Download
memory/4856-31-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

Filesize
10.8MB

Download
memory/4856-0-0x0000025493E50000-0x0000025493E90000-memory.dmp

Filesize
256KB

Download
memory/4856-61-0x0000025494250000-0x0000025494260000-memory.dmp

Filesize
64KB

Download
memory/4856-53-0x00000254AE650000-0x00000254AE65A000-memory.dmp

Filesize
40KB

Download
memory/4856-38-0x00000254AE720000-0x00000254AE770000-memory.dmp

Filesize
320KB

Download
memory/4856-39-0x00000254AE620000-0x00000254AE63E000-memory.dmp

Filesize
120KB

Download
memory/4856-57-0x00000254AE2D0000-0x00000254AE3D2000-memory.dmp

Filesize
1.0MB

Download
memory/4856-54-0x00000254AE680000-0x00000254AE692000-memory.dmp

Filesize
72KB

Download
memory/4856-2-0x0000025494250000-0x0000025494260000-memory.dmp

Filesize
64KB

Download
memory/4856-1-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

Filesize
10.8MB

Download
memory/4856-93-0x00000254AE2D0000-0x00000254AE3D2000-memory.dmp

Filesize
1.0MB

Download
memory/4856-94-0x00007FFD7F030000-0x00007FFD7FAF1000-memory.dmp

Filesize
10.8MB

Download