umbral | a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
16/01/2025, 00:35

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General

Target

a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe
Size

231KB
MD5

d4614e3b2357a4cd0b0b8c4193d10fda
SHA1

774af912c6d7685175ad069f22848d72d0dab03b
SHA256

a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6
SHA512

39b4c4a02b58ad825277843e4ca7492f35b14e90ac32f60b9f9caecfe348598a8d836bae9b138661cf66ddb3cc45d6fb668733363a55bac818342b37a1fdfd69
SSDEEP

6144:xloZM+rIkd8g+EtXHkv/iD4+Ocip3cw/oeHp0AVO0b8e1mMiq:DoZtL+EP8+Ocip3cw/oeHp0AVjiq

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2652-1-0x0000000000340000-0x0000000000380000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2736	powershell.exe
1456	powershell.exe
3032	powershell.exe
2852	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe

Deletes itself 1 IoCs

pid	Process
2412	cmd.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

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
2184	PING.EXE
2412	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2084	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2184	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe
2852	powershell.exe
2736	powershell.exe
1456	powershell.exe
1520	powershell.exe
3032	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe
Token: SeIncreaseQuotaPrivilege	2848	wmic.exe
Token: SeSecurityPrivilege	2848	wmic.exe
Token: SeTakeOwnershipPrivilege	2848	wmic.exe
Token: SeLoadDriverPrivilege	2848	wmic.exe
Token: SeSystemProfilePrivilege	2848	wmic.exe
Token: SeSystemtimePrivilege	2848	wmic.exe
Token: SeProfSingleProcessPrivilege	2848	wmic.exe
Token: SeIncBasePriorityPrivilege	2848	wmic.exe
Token: SeCreatePagefilePrivilege	2848	wmic.exe
Token: SeBackupPrivilege	2848	wmic.exe
Token: SeRestorePrivilege	2848	wmic.exe
Token: SeShutdownPrivilege	2848	wmic.exe
Token: SeDebugPrivilege	2848	wmic.exe
Token: SeSystemEnvironmentPrivilege	2848	wmic.exe
Token: SeRemoteShutdownPrivilege	2848	wmic.exe
Token: SeUndockPrivilege	2848	wmic.exe
Token: SeManageVolumePrivilege	2848	wmic.exe
Token: 33	2848	wmic.exe
Token: 34	2848	wmic.exe
Token: 35	2848	wmic.exe
Token: SeIncreaseQuotaPrivilege	2848	wmic.exe
Token: SeSecurityPrivilege	2848	wmic.exe
Token: SeTakeOwnershipPrivilege	2848	wmic.exe
Token: SeLoadDriverPrivilege	2848	wmic.exe
Token: SeSystemProfilePrivilege	2848	wmic.exe
Token: SeSystemtimePrivilege	2848	wmic.exe
Token: SeProfSingleProcessPrivilege	2848	wmic.exe
Token: SeIncBasePriorityPrivilege	2848	wmic.exe
Token: SeCreatePagefilePrivilege	2848	wmic.exe
Token: SeBackupPrivilege	2848	wmic.exe
Token: SeRestorePrivilege	2848	wmic.exe
Token: SeShutdownPrivilege	2848	wmic.exe
Token: SeDebugPrivilege	2848	wmic.exe
Token: SeSystemEnvironmentPrivilege	2848	wmic.exe
Token: SeRemoteShutdownPrivilege	2848	wmic.exe
Token: SeUndockPrivilege	2848	wmic.exe
Token: SeManageVolumePrivilege	2848	wmic.exe
Token: 33	2848	wmic.exe
Token: 34	2848	wmic.exe
Token: 35	2848	wmic.exe
Token: SeDebugPrivilege	2852	powershell.exe
Token: SeDebugPrivilege	2736	powershell.exe
Token: SeDebugPrivilege	1456	powershell.exe
Token: SeDebugPrivilege	1520	powershell.exe
Token: SeIncreaseQuotaPrivilege	572	wmic.exe
Token: SeSecurityPrivilege	572	wmic.exe
Token: SeTakeOwnershipPrivilege	572	wmic.exe
Token: SeLoadDriverPrivilege	572	wmic.exe
Token: SeSystemProfilePrivilege	572	wmic.exe
Token: SeSystemtimePrivilege	572	wmic.exe
Token: SeProfSingleProcessPrivilege	572	wmic.exe
Token: SeIncBasePriorityPrivilege	572	wmic.exe
Token: SeCreatePagefilePrivilege	572	wmic.exe
Token: SeBackupPrivilege	572	wmic.exe
Token: SeRestorePrivilege	572	wmic.exe
Token: SeShutdownPrivilege	572	wmic.exe
Token: SeDebugPrivilege	572	wmic.exe
Token: SeSystemEnvironmentPrivilege	572	wmic.exe
Token: SeRemoteShutdownPrivilege	572	wmic.exe
Token: SeUndockPrivilege	572	wmic.exe
Token: SeManageVolumePrivilege	572	wmic.exe
Token: 33	572	wmic.exe
Token: 34	572	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2848	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	30
PID 2652 wrote to memory of 2848	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	30
PID 2652 wrote to memory of 2848	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	30
PID 2652 wrote to memory of 2928	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	33
PID 2652 wrote to memory of 2928	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	33
PID 2652 wrote to memory of 2928	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	33
PID 2652 wrote to memory of 2852	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	35
PID 2652 wrote to memory of 2852	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	35
PID 2652 wrote to memory of 2852	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	35
PID 2652 wrote to memory of 2736	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	37
PID 2652 wrote to memory of 2736	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	37
PID 2652 wrote to memory of 2736	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	37
PID 2652 wrote to memory of 1456	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	39
PID 2652 wrote to memory of 1456	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	39
PID 2652 wrote to memory of 1456	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	39
PID 2652 wrote to memory of 1520	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	41
PID 2652 wrote to memory of 1520	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	41
PID 2652 wrote to memory of 1520	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	41
PID 2652 wrote to memory of 572	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	43
PID 2652 wrote to memory of 572	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	43
PID 2652 wrote to memory of 572	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	43
PID 2652 wrote to memory of 848	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	45
PID 2652 wrote to memory of 848	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	45
PID 2652 wrote to memory of 848	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	45
PID 2652 wrote to memory of 1724	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	47
PID 2652 wrote to memory of 1724	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	47
PID 2652 wrote to memory of 1724	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	47
PID 2652 wrote to memory of 3032	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	49
PID 2652 wrote to memory of 3032	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	49
PID 2652 wrote to memory of 3032	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	49
PID 2652 wrote to memory of 2084	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	51
PID 2652 wrote to memory of 2084	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	51
PID 2652 wrote to memory of 2084	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	51
PID 2652 wrote to memory of 2412	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	53
PID 2652 wrote to memory of 2412	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	53
PID 2652 wrote to memory of 2412	2652	a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe	53
PID 2412 wrote to memory of 2184	2412	cmd.exe	55
PID 2412 wrote to memory of 2184	2412	cmd.exe	55
PID 2412 wrote to memory of 2184	2412	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2928	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe
"C:\Users\Admin\AppData\Local\Temp\a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2848
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe"
  2⤵
  - Views/modifies file attributes
  PID:2928
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2852
- 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:2736
- 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:1456
- 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:1520
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:572
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:848
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1724
- 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:3032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2084
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\a47429f5154f3004736a632274f3f39ef307a44d7f0f65feac008085ffa9d2a6.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2412
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2184

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

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
62bef29c9c2d7ef1cf7352d56aa45d3f

SHA1
3114c22814b9dbe0d1c1d61dacfd509d2898c24d

SHA256
1c096f67d0be6e48ed0d7bcd0bbbe2410b25d2e974522b8d5f14d3f4e8aacc8c

SHA512
a26f67280a1ac1d8015b88e34cda859df239531398a7f34386ea00ac0b4a36d54ef6f6b466db0d27abfcb7ecdc4ec2270232e32ef403a6cb551027a56397ed7f

Download Submit
memory/2652-0-0x000007FEF5763000-0x000007FEF5764000-memory.dmp

Filesize
4KB

Download
memory/2652-1-0x0000000000340000-0x0000000000380000-memory.dmp

Filesize
256KB

Download
memory/2652-2-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2652-47-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2736-14-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2736-15-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/2852-7-0x000000001B5A0000-0x000000001B882000-memory.dmp

Filesize
2.9MB

Download
memory/2852-8-0x0000000002810000-0x0000000002818000-memory.dmp

Filesize
32KB

Download
memory/3032-43-0x0000000002000000-0x0000000002008000-memory.dmp

Filesize
32KB

Download