umbral | a578f68e62faffd324cdbcd73e781c8c2c4976a0c6d6048f4b4692527310e608

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-08-2024 01:20

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General

Target

f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe
Size

227KB
MD5

57725f9d6fe867414481c9174b761df1
SHA1

498f57a097747aa80a83a2927a74d96c007028c6
SHA256

f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd
SHA512

28de892b39cfb8e534c8bec5c2a8f277adb006499930fc6cf00251b5f157033d856dcb41dbc80375a61dc7ffe9eb109e1e00cbc42972b2202f8348daac7b6586
SSDEEP

6144:+loZM9rIkd8g+EtXHkv/iD4UcHZLxCqVUQhTuOLdG2Hb8e1mB1i:ooZOL+EP8UcHZLxCqVUQhTuOLd9Ec

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1540-1-0x0000000000D70000-0x0000000000DB0000-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
2680	powershell.exe
2588	powershell.exe
2004	powershell.exe
1904	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe

Deletes itself 1 IoCs

pid	Process
2592	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
8	discord.com
9	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
2264	PING.EXE
2592	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1768	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2264	PING.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1904	powershell.exe
2680	powershell.exe
2588	powershell.exe
2572	powershell.exe
2004	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe
Token: SeDebugPrivilege	1904	powershell.exe
Token: SeDebugPrivilege	2680	powershell.exe
Token: SeDebugPrivilege	2588	powershell.exe
Token: SeDebugPrivilege	2572	powershell.exe
Token: SeIncreaseQuotaPrivilege	1288	wmic.exe
Token: SeSecurityPrivilege	1288	wmic.exe
Token: SeTakeOwnershipPrivilege	1288	wmic.exe
Token: SeLoadDriverPrivilege	1288	wmic.exe
Token: SeSystemProfilePrivilege	1288	wmic.exe
Token: SeSystemtimePrivilege	1288	wmic.exe
Token: SeProfSingleProcessPrivilege	1288	wmic.exe
Token: SeIncBasePriorityPrivilege	1288	wmic.exe
Token: SeCreatePagefilePrivilege	1288	wmic.exe
Token: SeBackupPrivilege	1288	wmic.exe
Token: SeRestorePrivilege	1288	wmic.exe
Token: SeShutdownPrivilege	1288	wmic.exe
Token: SeDebugPrivilege	1288	wmic.exe
Token: SeSystemEnvironmentPrivilege	1288	wmic.exe
Token: SeRemoteShutdownPrivilege	1288	wmic.exe
Token: SeUndockPrivilege	1288	wmic.exe
Token: SeManageVolumePrivilege	1288	wmic.exe
Token: 33	1288	wmic.exe
Token: 34	1288	wmic.exe
Token: 35	1288	wmic.exe
Token: SeIncreaseQuotaPrivilege	1288	wmic.exe
Token: SeSecurityPrivilege	1288	wmic.exe
Token: SeTakeOwnershipPrivilege	1288	wmic.exe
Token: SeLoadDriverPrivilege	1288	wmic.exe
Token: SeSystemProfilePrivilege	1288	wmic.exe
Token: SeSystemtimePrivilege	1288	wmic.exe
Token: SeProfSingleProcessPrivilege	1288	wmic.exe
Token: SeIncBasePriorityPrivilege	1288	wmic.exe
Token: SeCreatePagefilePrivilege	1288	wmic.exe
Token: SeBackupPrivilege	1288	wmic.exe
Token: SeRestorePrivilege	1288	wmic.exe
Token: SeShutdownPrivilege	1288	wmic.exe
Token: SeDebugPrivilege	1288	wmic.exe
Token: SeSystemEnvironmentPrivilege	1288	wmic.exe
Token: SeRemoteShutdownPrivilege	1288	wmic.exe
Token: SeUndockPrivilege	1288	wmic.exe
Token: SeManageVolumePrivilege	1288	wmic.exe
Token: 33	1288	wmic.exe
Token: 34	1288	wmic.exe
Token: 35	1288	wmic.exe
Token: SeIncreaseQuotaPrivilege	1896	wmic.exe
Token: SeSecurityPrivilege	1896	wmic.exe
Token: SeTakeOwnershipPrivilege	1896	wmic.exe
Token: SeLoadDriverPrivilege	1896	wmic.exe
Token: SeSystemProfilePrivilege	1896	wmic.exe
Token: SeSystemtimePrivilege	1896	wmic.exe
Token: SeProfSingleProcessPrivilege	1896	wmic.exe
Token: SeIncBasePriorityPrivilege	1896	wmic.exe
Token: SeCreatePagefilePrivilege	1896	wmic.exe
Token: SeBackupPrivilege	1896	wmic.exe
Token: SeRestorePrivilege	1896	wmic.exe
Token: SeShutdownPrivilege	1896	wmic.exe
Token: SeDebugPrivilege	1896	wmic.exe
Token: SeSystemEnvironmentPrivilege	1896	wmic.exe
Token: SeRemoteShutdownPrivilege	1896	wmic.exe
Token: SeUndockPrivilege	1896	wmic.exe
Token: SeManageVolumePrivilege	1896	wmic.exe
Token: 33	1896	wmic.exe
Token: 34	1896	wmic.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 2360	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	30
PID 1540 wrote to memory of 2360	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	30
PID 1540 wrote to memory of 2360	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	30
PID 1540 wrote to memory of 1904	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	32
PID 1540 wrote to memory of 1904	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	32
PID 1540 wrote to memory of 1904	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	32
PID 1540 wrote to memory of 2680	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	34
PID 1540 wrote to memory of 2680	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	34
PID 1540 wrote to memory of 2680	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	34
PID 1540 wrote to memory of 2588	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	36
PID 1540 wrote to memory of 2588	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	36
PID 1540 wrote to memory of 2588	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	36
PID 1540 wrote to memory of 2572	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	38
PID 1540 wrote to memory of 2572	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	38
PID 1540 wrote to memory of 2572	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	38
PID 1540 wrote to memory of 1288	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	40
PID 1540 wrote to memory of 1288	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	40
PID 1540 wrote to memory of 1288	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	40
PID 1540 wrote to memory of 1896	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	43
PID 1540 wrote to memory of 1896	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	43
PID 1540 wrote to memory of 1896	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	43
PID 1540 wrote to memory of 2620	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	45
PID 1540 wrote to memory of 2620	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	45
PID 1540 wrote to memory of 2620	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	45
PID 1540 wrote to memory of 2004	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	47
PID 1540 wrote to memory of 2004	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	47
PID 1540 wrote to memory of 2004	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	47
PID 1540 wrote to memory of 1768	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	49
PID 1540 wrote to memory of 1768	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	49
PID 1540 wrote to memory of 1768	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	49
PID 1540 wrote to memory of 2592	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	51
PID 1540 wrote to memory of 2592	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	51
PID 1540 wrote to memory of 2592	1540	f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe	51
PID 2592 wrote to memory of 2264	2592	cmd.exe	53
PID 2592 wrote to memory of 2264	2592	cmd.exe	53
PID 2592 wrote to memory of 2264	2592	cmd.exe	53

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2360	attrib.exe

C:\Users\Admin\AppData\Local\Temp\f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe
"C:\Users\Admin\AppData\Local\Temp\f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe"
  2⤵
  - Views/modifies file attributes
  PID:2360
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1904
- 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:2680
- 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:2588
- 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:2572
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1288
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1896
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2620
- 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:2004
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1768
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\f29f169e410ccc847f78e8df47006a45025ba10f0d517629f80ad73995d614fd.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2592
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2264

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
d7435c9e0232fc194a7c2175811e2f85

SHA1
46861de9aa76a19b8f6d80b886aeeaab69821953

SHA256
9d009de9e5733bab53de82c271cf48bffbb765e712c7314225237262d629d313

SHA512
428e4bd7999cade955862755583ccc72ad7e3cf9daf1405a1303772be49b56983ab4b6d98eeb22f6dfd122c55a6d9c760e71026f705386cb91d44d0a9d8f97d2

Download Submit
memory/1540-1-0x0000000000D70000-0x0000000000DB0000-memory.dmp

Filesize
256KB

Download
memory/1540-2-0x000007FEF5080000-0x000007FEF5A6C000-memory.dmp

Filesize
9.9MB

Download
memory/1540-52-0x000007FEF5080000-0x000007FEF5A6C000-memory.dmp

Filesize
9.9MB

Download
memory/1540-0-0x000007FEF5083000-0x000007FEF5084000-memory.dmp

Filesize
4KB

Download
memory/1904-8-0x000000001B520000-0x000000001B802000-memory.dmp

Filesize
2.9MB

Download
memory/1904-10-0x00000000028C4000-0x00000000028C7000-memory.dmp

Filesize
12KB

Download
memory/1904-12-0x000007FEECFC0000-0x000007FEED95D000-memory.dmp

Filesize
9.6MB

Download
memory/1904-11-0x00000000028CB000-0x0000000002932000-memory.dmp

Filesize
412KB

Download
memory/1904-9-0x00000000022C0000-0x00000000022C8000-memory.dmp

Filesize
32KB

Download
memory/1904-7-0x000007FEED27E000-0x000007FEED27F000-memory.dmp

Filesize
4KB

Download
memory/1904-53-0x000007FEECFC0000-0x000007FEED95D000-memory.dmp

Filesize
9.6MB

Download
memory/2004-48-0x000000001B660000-0x000000001B942000-memory.dmp

Filesize
2.9MB

Download
memory/2680-18-0x000000001B660000-0x000000001B942000-memory.dmp

Filesize
2.9MB

Download
memory/2680-19-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download